combine lib to one
bms_master.h@3:2561f59cd3dd, 2018-01-17 (annotated)
- Committer:
- roger5641
- Date:
- Wed Jan 17 08:27:39 2018 +0000
- Revision:
- 3:2561f59cd3dd
- Parent:
- 2:9f8d97b7fb58
check open wire test; 20 command some problems
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
roger5641 | 0:b2692e0e4219 | 1 | |
roger5641 | 0:b2692e0e4219 | 2 | #ifndef bms_master_H |
roger5641 | 0:b2692e0e4219 | 3 | #define bms_master_H |
roger5641 | 0:b2692e0e4219 | 4 | |
roger5641 | 0:b2692e0e4219 | 5 | #include "mbed.h" |
roger5641 | 0:b2692e0e4219 | 6 | |
roger5641 | 0:b2692e0e4219 | 7 | #define IC_LTC6811 |
roger5641 | 0:b2692e0e4219 | 8 | |
roger5641 | 0:b2692e0e4219 | 9 | #define MD_422HZ_1KHZ 0 |
roger5641 | 0:b2692e0e4219 | 10 | #define MD_27KHZ_14KHZ 1 |
roger5641 | 0:b2692e0e4219 | 11 | #define MD_7KHZ_3KHZ 2 |
roger5641 | 0:b2692e0e4219 | 12 | #define MD_26HZ_2KHZ 3 |
roger5641 | 0:b2692e0e4219 | 13 | |
roger5641 | 0:b2692e0e4219 | 14 | #define ADC_OPT_ENABLED 1 |
roger5641 | 0:b2692e0e4219 | 15 | #define ADC_OPT_DISABLED 0 |
roger5641 | 0:b2692e0e4219 | 16 | |
roger5641 | 0:b2692e0e4219 | 17 | #define CELL_CH_ALL 0 |
roger5641 | 0:b2692e0e4219 | 18 | #define CELL_CH_1and7 1 |
roger5641 | 0:b2692e0e4219 | 19 | #define CELL_CH_2and8 2 |
roger5641 | 0:b2692e0e4219 | 20 | #define CELL_CH_3and9 3 |
roger5641 | 0:b2692e0e4219 | 21 | #define CELL_CH_4and10 4 |
roger5641 | 0:b2692e0e4219 | 22 | #define CELL_CH_5and11 5 |
roger5641 | 0:b2692e0e4219 | 23 | #define CELL_CH_6and12 6 |
roger5641 | 0:b2692e0e4219 | 24 | |
roger5641 | 0:b2692e0e4219 | 25 | #define SELFTEST_1 1 |
roger5641 | 0:b2692e0e4219 | 26 | #define SELFTEST_2 2 |
roger5641 | 0:b2692e0e4219 | 27 | |
roger5641 | 0:b2692e0e4219 | 28 | #define AUX_CH_ALL 0 |
roger5641 | 0:b2692e0e4219 | 29 | #define AUX_CH_GPIO1 1 |
roger5641 | 0:b2692e0e4219 | 30 | #define AUX_CH_GPIO2 2 |
roger5641 | 0:b2692e0e4219 | 31 | #define AUX_CH_GPIO3 3 |
roger5641 | 0:b2692e0e4219 | 32 | #define AUX_CH_GPIO4 4 |
roger5641 | 0:b2692e0e4219 | 33 | #define AUX_CH_GPIO5 5 |
roger5641 | 0:b2692e0e4219 | 34 | #define AUX_CH_VREF2 6 |
roger5641 | 0:b2692e0e4219 | 35 | |
roger5641 | 0:b2692e0e4219 | 36 | #define STAT_CH_ALL 0 |
roger5641 | 0:b2692e0e4219 | 37 | #define STAT_CH_SOC 1 |
roger5641 | 0:b2692e0e4219 | 38 | #define STAT_CH_ITEMP 2 |
roger5641 | 0:b2692e0e4219 | 39 | #define STAT_CH_VREGA 3 |
roger5641 | 0:b2692e0e4219 | 40 | #define STAT_CH_VREGD 4 |
roger5641 | 0:b2692e0e4219 | 41 | |
roger5641 | 0:b2692e0e4219 | 42 | #define DCP_DISABLED 0 |
roger5641 | 0:b2692e0e4219 | 43 | #define DCP_ENABLED 1 |
roger5641 | 0:b2692e0e4219 | 44 | |
roger5641 | 0:b2692e0e4219 | 45 | #define PULL_UP_CURRENT 1 |
roger5641 | 0:b2692e0e4219 | 46 | #define PULL_DOWN_CURRENT 0 |
roger5641 | 0:b2692e0e4219 | 47 | |
roger5641 | 0:b2692e0e4219 | 48 | #define NUM_RX_BYT 8 |
roger5641 | 0:b2692e0e4219 | 49 | #define CELL 1 |
roger5641 | 0:b2692e0e4219 | 50 | #define AUX 2 |
roger5641 | 0:b2692e0e4219 | 51 | #define STAT 3 |
roger5641 | 0:b2692e0e4219 | 52 | #define CFGR 0 |
roger5641 | 0:b2692e0e4219 | 53 | #define CFGRB 4 |
roger5641 | 0:b2692e0e4219 | 54 | DigitalOut CS_PIN(A3); //chip select |
roger5641 | 0:b2692e0e4219 | 55 | |
roger5641 | 2:9f8d97b7fb58 | 56 | SPI spi(A6,A5,A4); |
roger5641 | 0:b2692e0e4219 | 57 | Serial pc(USBTX,USBRX); |
roger5641 | 0:b2692e0e4219 | 58 | |
roger5641 | 0:b2692e0e4219 | 59 | #define UI_BUFFER_SIZE 64 |
roger5641 | 0:b2692e0e4219 | 60 | |
roger5641 | 0:b2692e0e4219 | 61 | //! Cell Voltage data structure. |
roger5641 | 0:b2692e0e4219 | 62 | typedef struct |
roger5641 | 0:b2692e0e4219 | 63 | { |
roger5641 | 0:b2692e0e4219 | 64 | uint16_t c_codes[18];//!< Cell Voltage Codes |
roger5641 | 0:b2692e0e4219 | 65 | uint8_t pec_match[6];//!< If a PEC error was detected during most recent read cmd |
roger5641 | 0:b2692e0e4219 | 66 | } cv; |
roger5641 | 0:b2692e0e4219 | 67 | |
roger5641 | 0:b2692e0e4219 | 68 | //! AUX Reg Voltage Data |
roger5641 | 0:b2692e0e4219 | 69 | typedef struct |
roger5641 | 0:b2692e0e4219 | 70 | { |
roger5641 | 0:b2692e0e4219 | 71 | uint16_t a_codes[9];//!< Aux Voltage Codes |
roger5641 | 0:b2692e0e4219 | 72 | uint8_t pec_match[4];//!< If a PEC error was detected during most recent read cmd |
roger5641 | 0:b2692e0e4219 | 73 | } ax; |
roger5641 | 0:b2692e0e4219 | 74 | |
roger5641 | 0:b2692e0e4219 | 75 | typedef struct |
roger5641 | 0:b2692e0e4219 | 76 | { |
roger5641 | 0:b2692e0e4219 | 77 | uint16_t stat_codes[4];//!< A two dimensional array of the stat voltage codes. |
roger5641 | 0:b2692e0e4219 | 78 | uint8_t flags[3]; //!< byte array that contains the uv/ov flag data |
roger5641 | 0:b2692e0e4219 | 79 | uint8_t mux_fail[1]; //!< Mux self test status flag |
roger5641 | 0:b2692e0e4219 | 80 | uint8_t thsd[1]; //!< Thermal shutdown status |
roger5641 | 0:b2692e0e4219 | 81 | uint8_t pec_match[2];//!< If a PEC error was detected during most recent read cmd |
roger5641 | 0:b2692e0e4219 | 82 | } st; |
roger5641 | 0:b2692e0e4219 | 83 | |
roger5641 | 0:b2692e0e4219 | 84 | typedef struct |
roger5641 | 0:b2692e0e4219 | 85 | { |
roger5641 | 0:b2692e0e4219 | 86 | uint8_t tx_data[6]; |
roger5641 | 0:b2692e0e4219 | 87 | uint8_t rx_data[8]; |
roger5641 | 0:b2692e0e4219 | 88 | uint8_t rx_pec_match;//!< If a PEC error was detected during most recent read cmd |
roger5641 | 0:b2692e0e4219 | 89 | } ic_register; |
roger5641 | 0:b2692e0e4219 | 90 | |
roger5641 | 0:b2692e0e4219 | 91 | typedef struct |
roger5641 | 0:b2692e0e4219 | 92 | { |
roger5641 | 0:b2692e0e4219 | 93 | uint16_t pec_count; |
roger5641 | 0:b2692e0e4219 | 94 | uint16_t cfgr_pec; |
roger5641 | 0:b2692e0e4219 | 95 | uint16_t cell_pec[6]; |
roger5641 | 0:b2692e0e4219 | 96 | uint16_t aux_pec[4]; |
roger5641 | 0:b2692e0e4219 | 97 | uint16_t stat_pec[2]; |
roger5641 | 0:b2692e0e4219 | 98 | } pec_counter; |
roger5641 | 0:b2692e0e4219 | 99 | |
roger5641 | 0:b2692e0e4219 | 100 | typedef struct |
roger5641 | 0:b2692e0e4219 | 101 | { |
roger5641 | 0:b2692e0e4219 | 102 | uint8_t cell_channels; |
roger5641 | 0:b2692e0e4219 | 103 | uint8_t stat_channels; |
roger5641 | 0:b2692e0e4219 | 104 | uint8_t aux_channels; |
roger5641 | 0:b2692e0e4219 | 105 | uint8_t num_cv_reg; |
roger5641 | 0:b2692e0e4219 | 106 | uint8_t num_gpio_reg; |
roger5641 | 0:b2692e0e4219 | 107 | uint8_t num_stat_reg; |
roger5641 | 0:b2692e0e4219 | 108 | } register_cfg; |
roger5641 | 0:b2692e0e4219 | 109 | |
roger5641 | 0:b2692e0e4219 | 110 | typedef struct |
roger5641 | 0:b2692e0e4219 | 111 | { |
roger5641 | 0:b2692e0e4219 | 112 | ic_register config; |
roger5641 | 0:b2692e0e4219 | 113 | ic_register configb; |
roger5641 | 0:b2692e0e4219 | 114 | cv cells; |
roger5641 | 0:b2692e0e4219 | 115 | ax aux; |
roger5641 | 0:b2692e0e4219 | 116 | st stat; |
roger5641 | 0:b2692e0e4219 | 117 | ic_register com; |
roger5641 | 0:b2692e0e4219 | 118 | ic_register pwm; |
roger5641 | 0:b2692e0e4219 | 119 | ic_register pwmb; |
roger5641 | 0:b2692e0e4219 | 120 | ic_register sctrl; |
roger5641 | 0:b2692e0e4219 | 121 | ic_register sctrlb; |
roger5641 | 0:b2692e0e4219 | 122 | bool isospi_reverse; |
roger5641 | 0:b2692e0e4219 | 123 | pec_counter crc_count; |
roger5641 | 0:b2692e0e4219 | 124 | register_cfg ic_reg; |
roger5641 | 0:b2692e0e4219 | 125 | long system_open_wire; |
roger5641 | 0:b2692e0e4219 | 126 | } cell_asic; |
roger5641 | 0:b2692e0e4219 | 127 | |
roger5641 | 0:b2692e0e4219 | 128 | |
roger5641 | 0:b2692e0e4219 | 129 | |
roger5641 | 0:b2692e0e4219 | 130 | |
roger5641 | 0:b2692e0e4219 | 131 | /*! calculates and returns the CRC15 |
roger5641 | 0:b2692e0e4219 | 132 | @returns The calculated pec15 as an unsigned int |
roger5641 | 0:b2692e0e4219 | 133 | */ |
roger5641 | 0:b2692e0e4219 | 134 | uint16_t pec15_calc(uint8_t len, //!< the length of the data array being passed to the function |
roger5641 | 0:b2692e0e4219 | 135 | uint8_t *data //!< the array of data that the PEC will be generated from |
roger5641 | 0:b2692e0e4219 | 136 | ); |
roger5641 | 0:b2692e0e4219 | 137 | |
roger5641 | 0:b2692e0e4219 | 138 | /*! Wake isoSPI up from idle state */ |
roger5641 | 0:b2692e0e4219 | 139 | void wakeup_idle(uint8_t total_ic);//!< number of ICs in the daisy chain |
roger5641 | 0:b2692e0e4219 | 140 | |
roger5641 | 0:b2692e0e4219 | 141 | /*! Wake the LTC6813 from the sleep state */ |
roger5641 | 0:b2692e0e4219 | 142 | void wakeup_sleep(uint8_t total_ic); //!< number of ICs in the daisy chain |
roger5641 | 0:b2692e0e4219 | 143 | |
roger5641 | 0:b2692e0e4219 | 144 | /*! Sense a command to the bms IC. This code will calculate the PEC code for the transmitted command*/ |
roger5641 | 0:b2692e0e4219 | 145 | void cmd_68(uint8_t tx_cmd[2]); //!< 2 Byte array containing the BMS command to be sent |
roger5641 | 0:b2692e0e4219 | 146 | |
roger5641 | 0:b2692e0e4219 | 147 | //! Writes an array of data to the daisy chain |
roger5641 | 0:b2692e0e4219 | 148 | void write_68(uint8_t total_ic , //!< number of ICs in the daisy chain |
roger5641 | 0:b2692e0e4219 | 149 | uint8_t tx_cmd[2], //!< 2 Byte array containing the BMS command to be sent |
roger5641 | 0:b2692e0e4219 | 150 | uint8_t data[] //!< Array containing the data to be written to the BMS ICs |
roger5641 | 0:b2692e0e4219 | 151 | ); |
roger5641 | 0:b2692e0e4219 | 152 | //! Issues a command onto the daisy chain and reads back 6*total_ic data in the rx_data array |
roger5641 | 0:b2692e0e4219 | 153 | int8_t read_68( uint8_t total_ic, //!< number of ICs in the daisy chain |
roger5641 | 0:b2692e0e4219 | 154 | uint8_t tx_cmd[2], //!< 2 Byte array containing the BMS command to be sent |
roger5641 | 0:b2692e0e4219 | 155 | uint8_t *rx_data); //!< Array that the read back data will be stored. |
roger5641 | 0:b2692e0e4219 | 156 | |
roger5641 | 0:b2692e0e4219 | 157 | /*! Starts the Mux Decoder diagnostic self test |
roger5641 | 0:b2692e0e4219 | 158 | |
roger5641 | 0:b2692e0e4219 | 159 | Running this command will start the Mux Decoder Diagnostic Self Test |
roger5641 | 0:b2692e0e4219 | 160 | This test takes roughly 1mS to complete. The MUXFAIL bit will be updated, |
roger5641 | 0:b2692e0e4219 | 161 | the bit will be set to 1 for a failure and 0 if the test has been passed. |
roger5641 | 0:b2692e0e4219 | 162 | */ |
roger5641 | 0:b2692e0e4219 | 163 | void LTC681x_diagn(); |
roger5641 | 0:b2692e0e4219 | 164 | |
roger5641 | 0:b2692e0e4219 | 165 | //! Sends the poll adc command |
roger5641 | 0:b2692e0e4219 | 166 | //! @returns 1 byte read back after a pladc command. If the byte is not 0xFF ADC conversion has completed |
roger5641 | 0:b2692e0e4219 | 167 | uint8_t LTC681x_pladc(); |
roger5641 | 0:b2692e0e4219 | 168 | |
roger5641 | 0:b2692e0e4219 | 169 | //! This function will block operation until the ADC has finished it's conversion |
roger5641 | 0:b2692e0e4219 | 170 | //! @returns the approximate time it took for the ADC function to complete. |
roger5641 | 0:b2692e0e4219 | 171 | uint32_t LTC681x_pollAdc(); |
roger5641 | 0:b2692e0e4219 | 172 | |
roger5641 | 0:b2692e0e4219 | 173 | /*! Starts cell voltage conversion |
roger5641 | 0:b2692e0e4219 | 174 | |
roger5641 | 0:b2692e0e4219 | 175 | Starts ADC conversions of the LTC6811 Cpin inputs. |
roger5641 | 0:b2692e0e4219 | 176 | The type of ADC conversion executed can be changed by setting the following parameters: |
roger5641 | 0:b2692e0e4219 | 177 | */ |
roger5641 | 0:b2692e0e4219 | 178 | void LTC681x_adcv(uint8_t MD, //!< ADC Conversion Mode |
roger5641 | 0:b2692e0e4219 | 179 | uint8_t DCP, //!< Controls if Discharge is permitted during conversion |
roger5641 | 0:b2692e0e4219 | 180 | uint8_t CH //!< Sets which Cell channels are converted |
roger5641 | 0:b2692e0e4219 | 181 | ); |
roger5641 | 0:b2692e0e4219 | 182 | |
roger5641 | 0:b2692e0e4219 | 183 | /*! Starts cell voltage and GPIO 1&2 conversion |
roger5641 | 0:b2692e0e4219 | 184 | */ |
roger5641 | 0:b2692e0e4219 | 185 | void LTC681x_adcvax( |
roger5641 | 0:b2692e0e4219 | 186 | uint8_t MD, //!< ADC Conversion Mode |
roger5641 | 0:b2692e0e4219 | 187 | uint8_t DCP //!< Controls if Discharge is permitted during conversion |
roger5641 | 0:b2692e0e4219 | 188 | ); |
roger5641 | 0:b2692e0e4219 | 189 | |
roger5641 | 0:b2692e0e4219 | 190 | |
roger5641 | 0:b2692e0e4219 | 191 | /*! Starts cell voltage self test conversion |
roger5641 | 0:b2692e0e4219 | 192 | */ |
roger5641 | 0:b2692e0e4219 | 193 | void LTC681x_cvst( |
roger5641 | 0:b2692e0e4219 | 194 | uint8_t MD, //!< ADC Conversion Mode |
roger5641 | 0:b2692e0e4219 | 195 | uint8_t ST //!< Self Test Mode |
roger5641 | 0:b2692e0e4219 | 196 | ); |
roger5641 | 0:b2692e0e4219 | 197 | |
roger5641 | 0:b2692e0e4219 | 198 | /*! Starts cell voltage and SOC conversion |
roger5641 | 0:b2692e0e4219 | 199 | */ |
roger5641 | 0:b2692e0e4219 | 200 | void LTC681x_adcvsc( |
roger5641 | 0:b2692e0e4219 | 201 | uint8_t MD, //!< ADC Conversion Mode |
roger5641 | 0:b2692e0e4219 | 202 | uint8_t DCP //!< Controls if Discharge is permitted during conversion |
roger5641 | 0:b2692e0e4219 | 203 | ); |
roger5641 | 0:b2692e0e4219 | 204 | /*! Starts cell voltage overlap conversion |
roger5641 | 0:b2692e0e4219 | 205 | */ |
roger5641 | 0:b2692e0e4219 | 206 | void LTC681x_adol( |
roger5641 | 0:b2692e0e4219 | 207 | uint8_t MD, //!< ADC Conversion Mode |
roger5641 | 0:b2692e0e4219 | 208 | uint8_t DCP //!< Discharge permitted during conversion |
roger5641 | 0:b2692e0e4219 | 209 | ); |
roger5641 | 0:b2692e0e4219 | 210 | |
roger5641 | 0:b2692e0e4219 | 211 | /*! Start an open wire Conversion |
roger5641 | 0:b2692e0e4219 | 212 | */ |
roger5641 | 0:b2692e0e4219 | 213 | void LTC681x_adow( |
roger5641 | 0:b2692e0e4219 | 214 | uint8_t MD, //!< ADC Conversion Mode |
roger5641 | 0:b2692e0e4219 | 215 | uint8_t PUP //!< Controls if Discharge is permitted during conversion |
roger5641 | 0:b2692e0e4219 | 216 | ); |
roger5641 | 0:b2692e0e4219 | 217 | |
roger5641 | 0:b2692e0e4219 | 218 | |
roger5641 | 0:b2692e0e4219 | 219 | /*! Start a GPIO and Vref2 Conversion |
roger5641 | 0:b2692e0e4219 | 220 | */ |
roger5641 | 0:b2692e0e4219 | 221 | void LTC681x_adax( |
roger5641 | 0:b2692e0e4219 | 222 | uint8_t MD, //!< ADC Conversion Mode |
roger5641 | 0:b2692e0e4219 | 223 | uint8_t CHG //!< Sets which GPIO channels are converted |
roger5641 | 0:b2692e0e4219 | 224 | ); |
roger5641 | 0:b2692e0e4219 | 225 | |
roger5641 | 0:b2692e0e4219 | 226 | /*! Start an GPIO Redundancy test |
roger5641 | 0:b2692e0e4219 | 227 | */ |
roger5641 | 0:b2692e0e4219 | 228 | void LTC681x_adaxd( |
roger5641 | 0:b2692e0e4219 | 229 | uint8_t MD, //!< ADC Conversion Mode |
roger5641 | 0:b2692e0e4219 | 230 | uint8_t CHG //!< Sets which GPIO channels are converted |
roger5641 | 0:b2692e0e4219 | 231 | ); |
roger5641 | 0:b2692e0e4219 | 232 | |
roger5641 | 0:b2692e0e4219 | 233 | /*! Start an Auxiliary Register Self Test Conversion |
roger5641 | 0:b2692e0e4219 | 234 | */ |
roger5641 | 0:b2692e0e4219 | 235 | void LTC681x_axst( |
roger5641 | 0:b2692e0e4219 | 236 | uint8_t MD, //!< ADC Conversion Mode |
roger5641 | 0:b2692e0e4219 | 237 | uint8_t ST //!< Sets if self test 1 or 2 is run |
roger5641 | 0:b2692e0e4219 | 238 | ); |
roger5641 | 0:b2692e0e4219 | 239 | |
roger5641 | 0:b2692e0e4219 | 240 | |
roger5641 | 0:b2692e0e4219 | 241 | |
roger5641 | 0:b2692e0e4219 | 242 | /*! Start a Status ADC Conversion |
roger5641 | 0:b2692e0e4219 | 243 | */ |
roger5641 | 0:b2692e0e4219 | 244 | void LTC681x_adstat( |
roger5641 | 0:b2692e0e4219 | 245 | uint8_t MD, //!< ADC Conversion Mode |
roger5641 | 0:b2692e0e4219 | 246 | uint8_t CHST //!< Sets which Stat channels are converted |
roger5641 | 0:b2692e0e4219 | 247 | ); |
roger5641 | 0:b2692e0e4219 | 248 | |
roger5641 | 0:b2692e0e4219 | 249 | /*! Start a Status register redundancy test Conversion |
roger5641 | 0:b2692e0e4219 | 250 | */ |
roger5641 | 0:b2692e0e4219 | 251 | void LTC681x_adstatd( |
roger5641 | 0:b2692e0e4219 | 252 | uint8_t MD, //!< ADC Mode |
roger5641 | 0:b2692e0e4219 | 253 | uint8_t CHST //!< Sets which Status channels are converted |
roger5641 | 0:b2692e0e4219 | 254 | ); |
roger5641 | 0:b2692e0e4219 | 255 | |
roger5641 | 0:b2692e0e4219 | 256 | |
roger5641 | 0:b2692e0e4219 | 257 | /*! Start a Status Register Self Test Conversion |
roger5641 | 0:b2692e0e4219 | 258 | */ |
roger5641 | 0:b2692e0e4219 | 259 | void LTC681x_statst( |
roger5641 | 0:b2692e0e4219 | 260 | uint8_t MD, //!< ADC Conversion Mode |
roger5641 | 0:b2692e0e4219 | 261 | uint8_t ST //!< Sets if self test 1 or 2 is run |
roger5641 | 0:b2692e0e4219 | 262 | ); |
roger5641 | 0:b2692e0e4219 | 263 | |
roger5641 | 0:b2692e0e4219 | 264 | void LTC681x_rdcv_reg(uint8_t reg, //!<Determines which cell voltage register is read back |
roger5641 | 0:b2692e0e4219 | 265 | uint8_t total_ic, //!<the number of ICs in the |
roger5641 | 0:b2692e0e4219 | 266 | uint8_t *data //!<An array of the unparsed cell codes |
roger5641 | 0:b2692e0e4219 | 267 | ); |
roger5641 | 0:b2692e0e4219 | 268 | /*! helper function that parses voltage measurement registers |
roger5641 | 0:b2692e0e4219 | 269 | */ |
roger5641 | 0:b2692e0e4219 | 270 | int8_t parse_cells(uint8_t current_ic, |
roger5641 | 0:b2692e0e4219 | 271 | uint8_t cell_reg, |
roger5641 | 0:b2692e0e4219 | 272 | uint8_t cell_data[], |
roger5641 | 0:b2692e0e4219 | 273 | uint16_t *cell_codes, |
roger5641 | 0:b2692e0e4219 | 274 | uint8_t *ic_pec); |
roger5641 | 0:b2692e0e4219 | 275 | |
roger5641 | 0:b2692e0e4219 | 276 | /*! Read the raw data from the LTC681x auxiliary register |
roger5641 | 0:b2692e0e4219 | 277 | |
roger5641 | 0:b2692e0e4219 | 278 | The function reads a single GPIO voltage register and stores thre read data |
roger5641 | 0:b2692e0e4219 | 279 | in the *data point as a byte array. This function is rarely used outside of |
roger5641 | 0:b2692e0e4219 | 280 | the LTC681x_rdaux() command. |
roger5641 | 0:b2692e0e4219 | 281 | */ |
roger5641 | 0:b2692e0e4219 | 282 | void LTC681x_rdaux_reg( uint8_t reg, //Determines which GPIO voltage register is read back |
roger5641 | 0:b2692e0e4219 | 283 | uint8_t total_ic, //The number of ICs in the system |
roger5641 | 0:b2692e0e4219 | 284 | uint8_t *data //Array of the unparsed auxiliary codes |
roger5641 | 0:b2692e0e4219 | 285 | ); |
roger5641 | 0:b2692e0e4219 | 286 | /*! Read the raw data from the LTC681x stat register |
roger5641 | 0:b2692e0e4219 | 287 | |
roger5641 | 0:b2692e0e4219 | 288 | The function reads a single GPIO voltage register and stores thre read data |
roger5641 | 0:b2692e0e4219 | 289 | in the *data point as a byte array. This function is rarely used outside of |
roger5641 | 0:b2692e0e4219 | 290 | the LTC681x_rdstat() command. |
roger5641 | 0:b2692e0e4219 | 291 | */ |
roger5641 | 0:b2692e0e4219 | 292 | void LTC681x_rdstat_reg(uint8_t reg, //Determines which stat register is read back |
roger5641 | 0:b2692e0e4219 | 293 | uint8_t total_ic, //The number of ICs in the system |
roger5641 | 0:b2692e0e4219 | 294 | uint8_t *data //Array of the unparsed stat codes |
roger5641 | 0:b2692e0e4219 | 295 | ); |
roger5641 | 0:b2692e0e4219 | 296 | |
roger5641 | 0:b2692e0e4219 | 297 | /*! Clears the LTC681x cell voltage registers |
roger5641 | 0:b2692e0e4219 | 298 | |
roger5641 | 0:b2692e0e4219 | 299 | The command clears the cell voltage registers and initializes |
roger5641 | 0:b2692e0e4219 | 300 | all values to 1. The register will read back hexadecimal 0xFF |
roger5641 | 0:b2692e0e4219 | 301 | after the command is sent. |
roger5641 | 0:b2692e0e4219 | 302 | */ |
roger5641 | 0:b2692e0e4219 | 303 | void LTC681x_clrcell(); |
roger5641 | 0:b2692e0e4219 | 304 | /*! Clears the LTC681x Auxiliary registers |
roger5641 | 0:b2692e0e4219 | 305 | |
roger5641 | 0:b2692e0e4219 | 306 | The command clears the Auxiliary registers and initializes |
roger5641 | 0:b2692e0e4219 | 307 | all values to 1. The register will read back hexadecimal 0xFF |
roger5641 | 0:b2692e0e4219 | 308 | after the command is sent. |
roger5641 | 0:b2692e0e4219 | 309 | */ |
roger5641 | 0:b2692e0e4219 | 310 | void LTC681x_clraux(); |
roger5641 | 0:b2692e0e4219 | 311 | |
roger5641 | 0:b2692e0e4219 | 312 | /*! Clears the LTC681x Stat registers |
roger5641 | 0:b2692e0e4219 | 313 | |
roger5641 | 0:b2692e0e4219 | 314 | The command clears the Stat registers and initializes |
roger5641 | 0:b2692e0e4219 | 315 | all values to 1. The register will read back hexadecimal 0xFF |
roger5641 | 0:b2692e0e4219 | 316 | after the command is sent. |
roger5641 | 0:b2692e0e4219 | 317 | */ |
roger5641 | 0:b2692e0e4219 | 318 | void LTC681x_clrstat(); |
roger5641 | 0:b2692e0e4219 | 319 | |
roger5641 | 0:b2692e0e4219 | 320 | /*! Clears the LTC681x SCTRL registers |
roger5641 | 0:b2692e0e4219 | 321 | |
roger5641 | 0:b2692e0e4219 | 322 | The command clears the SCTRL registers and initializes |
roger5641 | 0:b2692e0e4219 | 323 | all values to 0. The register will read back hexadecimal 0x00 |
roger5641 | 0:b2692e0e4219 | 324 | after the command is sent. |
roger5641 | 0:b2692e0e4219 | 325 | */ |
roger5641 | 0:b2692e0e4219 | 326 | void LTC681x_clrsctrl(); |
roger5641 | 0:b2692e0e4219 | 327 | |
roger5641 | 0:b2692e0e4219 | 328 | /*! Starts the Mux Decoder diagnostic self test |
roger5641 | 0:b2692e0e4219 | 329 | |
roger5641 | 0:b2692e0e4219 | 330 | Running this command will start the Mux Decoder Diagnostic Self Test |
roger5641 | 0:b2692e0e4219 | 331 | This test takes roughly 1mS to complete. The MUXFAIL bit will be updated, |
roger5641 | 0:b2692e0e4219 | 332 | the bit will be set to 1 for a failure and 0 if the test has been passed. |
roger5641 | 0:b2692e0e4219 | 333 | */ |
roger5641 | 0:b2692e0e4219 | 334 | void LTC681x_diagn(); |
roger5641 | 0:b2692e0e4219 | 335 | |
roger5641 | 0:b2692e0e4219 | 336 | /*! Reads and parses the LTC681x cell voltage registers. |
roger5641 | 0:b2692e0e4219 | 337 | |
roger5641 | 0:b2692e0e4219 | 338 | The function is used to read the cell codes of the LTC6811. |
roger5641 | 0:b2692e0e4219 | 339 | This function will send the requested read commands parse the data |
roger5641 | 0:b2692e0e4219 | 340 | and store the cell voltages in the cell_asic structure. |
roger5641 | 0:b2692e0e4219 | 341 | */ |
roger5641 | 0:b2692e0e4219 | 342 | uint8_t LTC681x_rdcv(uint8_t reg, // Controls which cell voltage register is read back. |
roger5641 | 0:b2692e0e4219 | 343 | uint8_t total_ic, // the number of ICs in the system |
roger5641 | 0:b2692e0e4219 | 344 | cell_asic ic[] // Array of the parsed cell codes |
roger5641 | 0:b2692e0e4219 | 345 | ); |
roger5641 | 0:b2692e0e4219 | 346 | |
roger5641 | 0:b2692e0e4219 | 347 | /*! Reads and parses the LTC681x auxiliary registers. |
roger5641 | 0:b2692e0e4219 | 348 | |
roger5641 | 0:b2692e0e4219 | 349 | The function is used to read the parsed GPIO codes of the LTC6811. This function will send the requested |
roger5641 | 0:b2692e0e4219 | 350 | read commands parse the data and store the gpio voltages in the cell_asic structure. |
roger5641 | 0:b2692e0e4219 | 351 | */ |
roger5641 | 0:b2692e0e4219 | 352 | int8_t LTC681x_rdaux(uint8_t reg, //Determines which GPIO voltage register is read back. |
roger5641 | 0:b2692e0e4219 | 353 | uint8_t total_ic,//the number of ICs in the system |
roger5641 | 0:b2692e0e4219 | 354 | cell_asic ic[]//!< Measurement Data Structure |
roger5641 | 0:b2692e0e4219 | 355 | ); |
roger5641 | 0:b2692e0e4219 | 356 | |
roger5641 | 0:b2692e0e4219 | 357 | /*! Reads and parses the LTC681x stat registers. |
roger5641 | 0:b2692e0e4219 | 358 | |
roger5641 | 0:b2692e0e4219 | 359 | The function is used to read the parsed status codes of the LTC6811. This function will send the requested |
roger5641 | 0:b2692e0e4219 | 360 | read commands parse the data and store the status voltages in the cell_asic structure |
roger5641 | 0:b2692e0e4219 | 361 | */ |
roger5641 | 0:b2692e0e4219 | 362 | int8_t LTC681x_rdstat( uint8_t reg, //!<Determines which Stat register is read back. |
roger5641 | 0:b2692e0e4219 | 363 | uint8_t total_ic,//!<the number of ICs in the system |
roger5641 | 0:b2692e0e4219 | 364 | cell_asic ic[]//!< Measurement Data Structure |
roger5641 | 0:b2692e0e4219 | 365 | ); |
roger5641 | 0:b2692e0e4219 | 366 | /*! Write the LTC681x CFGRA |
roger5641 | 0:b2692e0e4219 | 367 | |
roger5641 | 0:b2692e0e4219 | 368 | This command will write the configuration registers of the LTC681xs |
roger5641 | 0:b2692e0e4219 | 369 | connected in a daisy chain stack. The configuration is written in descending |
roger5641 | 0:b2692e0e4219 | 370 | order so the last device's configuration is written first. |
roger5641 | 0:b2692e0e4219 | 371 | */ |
roger5641 | 0:b2692e0e4219 | 372 | void LTC681x_wrcfg(uint8_t total_ic, //The number of ICs being written to |
roger5641 | 0:b2692e0e4219 | 373 | cell_asic ic[] //A two dimensional array of the configuration data that will be written |
roger5641 | 0:b2692e0e4219 | 374 | ); |
roger5641 | 0:b2692e0e4219 | 375 | |
roger5641 | 0:b2692e0e4219 | 376 | /*! Reads the LTC681x CFGRA register |
roger5641 | 0:b2692e0e4219 | 377 | */ |
roger5641 | 0:b2692e0e4219 | 378 | int8_t LTC681x_rdcfg(uint8_t total_ic, //Number of ICs in the system |
roger5641 | 0:b2692e0e4219 | 379 | cell_asic ic[] //A two dimensional array that the function stores the read configuration data. |
roger5641 | 0:b2692e0e4219 | 380 | ); |
roger5641 | 0:b2692e0e4219 | 381 | |
roger5641 | 0:b2692e0e4219 | 382 | /*! Selft Test Helper Function*/ |
roger5641 | 0:b2692e0e4219 | 383 | uint16_t LTC681x_st_lookup( |
roger5641 | 0:b2692e0e4219 | 384 | uint8_t MD, //ADC Mode |
roger5641 | 0:b2692e0e4219 | 385 | uint8_t ST //Self Test |
roger5641 | 0:b2692e0e4219 | 386 | ); |
roger5641 | 0:b2692e0e4219 | 387 | |
roger5641 | 0:b2692e0e4219 | 388 | /*! Helper Function to clear DCC bits in the CFGR Registers*/ |
roger5641 | 0:b2692e0e4219 | 389 | void clear_discharge(uint8_t total_ic, |
roger5641 | 0:b2692e0e4219 | 390 | cell_asic ic[]); |
roger5641 | 0:b2692e0e4219 | 391 | |
roger5641 | 0:b2692e0e4219 | 392 | /*! Helper function that runs the ADC Self Tests*/ |
roger5641 | 0:b2692e0e4219 | 393 | int16_t LTC681x_run_cell_adc_st(uint8_t adc_reg, |
roger5641 | 0:b2692e0e4219 | 394 | uint8_t total_ic, |
roger5641 | 0:b2692e0e4219 | 395 | cell_asic ic[]); |
roger5641 | 0:b2692e0e4219 | 396 | |
roger5641 | 0:b2692e0e4219 | 397 | /*! Helper function that runs the ADC Digital Redudancy commands and checks output for errors*/ |
roger5641 | 0:b2692e0e4219 | 398 | int16_t LTC681x_run_adc_redundancy_st(uint8_t adc_mode, |
roger5641 | 0:b2692e0e4219 | 399 | uint8_t adc_reg, |
roger5641 | 0:b2692e0e4219 | 400 | uint8_t total_ic, |
roger5641 | 0:b2692e0e4219 | 401 | cell_asic ic[]); |
roger5641 | 0:b2692e0e4219 | 402 | |
roger5641 | 0:b2692e0e4219 | 403 | /*! Helper function that runs the datasheet open wire algorithm*/ |
roger5641 | 0:b2692e0e4219 | 404 | void LTC681x_run_openwire(uint8_t total_ic, |
roger5641 | 0:b2692e0e4219 | 405 | cell_asic ic[]); |
roger5641 | 0:b2692e0e4219 | 406 | |
roger5641 | 0:b2692e0e4219 | 407 | /*! Helper Function that runs the ADC Overlap test*/ |
roger5641 | 0:b2692e0e4219 | 408 | uint16_t LTC681x_run_adc_overlap(uint8_t total_ic, |
roger5641 | 0:b2692e0e4219 | 409 | cell_asic ic[]); |
roger5641 | 0:b2692e0e4219 | 410 | /*! Helper Function that counts overall PEC errors and register/IC PEC errors*/ |
roger5641 | 0:b2692e0e4219 | 411 | void LTC681x_check_pec(uint8_t total_ic, |
roger5641 | 0:b2692e0e4219 | 412 | uint8_t reg, |
roger5641 | 0:b2692e0e4219 | 413 | cell_asic ic[]); |
roger5641 | 0:b2692e0e4219 | 414 | |
roger5641 | 0:b2692e0e4219 | 415 | /*! Helper Function that resets the PEC error counters */ |
roger5641 | 0:b2692e0e4219 | 416 | void LTC681x_reset_crc_count(uint8_t total_ic, |
roger5641 | 0:b2692e0e4219 | 417 | cell_asic ic[]); |
roger5641 | 0:b2692e0e4219 | 418 | |
roger5641 | 0:b2692e0e4219 | 419 | /*! Helper Function to initialize the CFGR data structures*/ |
roger5641 | 0:b2692e0e4219 | 420 | void LTC681x_init_cfg(uint8_t total_ic, |
roger5641 | 0:b2692e0e4219 | 421 | cell_asic ic[]); |
roger5641 | 0:b2692e0e4219 | 422 | |
roger5641 | 0:b2692e0e4219 | 423 | /*! Helper function to set appropriate bits in CFGR register based on bit function*/ |
roger5641 | 0:b2692e0e4219 | 424 | void LTC681x_set_cfgr(uint8_t nIC, |
roger5641 | 0:b2692e0e4219 | 425 | cell_asic ic[], |
roger5641 | 0:b2692e0e4219 | 426 | bool refon, |
roger5641 | 0:b2692e0e4219 | 427 | bool adcopt, |
roger5641 | 0:b2692e0e4219 | 428 | bool gpio[5], |
roger5641 | 0:b2692e0e4219 | 429 | bool dcc[12]); |
roger5641 | 0:b2692e0e4219 | 430 | |
roger5641 | 0:b2692e0e4219 | 431 | /*! Helper function to turn the refon bit HIGH or LOW*/ |
roger5641 | 0:b2692e0e4219 | 432 | void LTC681x_set_cfgr_refon(uint8_t nIC, |
roger5641 | 0:b2692e0e4219 | 433 | cell_asic ic[], |
roger5641 | 0:b2692e0e4219 | 434 | bool refon); |
roger5641 | 0:b2692e0e4219 | 435 | |
roger5641 | 0:b2692e0e4219 | 436 | /*! Helper function to turn the ADCOPT bit HIGH or LOW*/ |
roger5641 | 0:b2692e0e4219 | 437 | void LTC681x_set_cfgr_adcopt(uint8_t nIC, |
roger5641 | 0:b2692e0e4219 | 438 | cell_asic ic[], |
roger5641 | 0:b2692e0e4219 | 439 | bool adcopt); |
roger5641 | 0:b2692e0e4219 | 440 | |
roger5641 | 0:b2692e0e4219 | 441 | /*! Helper function to turn the GPIO bits HIGH or LOW*/ |
roger5641 | 0:b2692e0e4219 | 442 | void LTC681x_set_cfgr_gpio(uint8_t nIC, |
roger5641 | 0:b2692e0e4219 | 443 | cell_asic ic[], |
roger5641 | 0:b2692e0e4219 | 444 | bool gpio[]); |
roger5641 | 0:b2692e0e4219 | 445 | |
roger5641 | 0:b2692e0e4219 | 446 | /*! Helper function to turn the DCC bits HIGH or LOW*/ |
roger5641 | 0:b2692e0e4219 | 447 | void LTC681x_set_cfgr_dis(uint8_t nIC, |
roger5641 | 0:b2692e0e4219 | 448 | cell_asic ic[], |
roger5641 | 0:b2692e0e4219 | 449 | bool dcc[]); |
roger5641 | 0:b2692e0e4219 | 450 | |
roger5641 | 0:b2692e0e4219 | 451 | |
roger5641 | 0:b2692e0e4219 | 452 | |
roger5641 | 0:b2692e0e4219 | 453 | //This needs a PROGMEM = when using with a LINDUINO |
roger5641 | 0:b2692e0e4219 | 454 | const uint16_t crc15Table[256] {0x0,0xc599, 0xceab, 0xb32, 0xd8cf, 0x1d56, 0x1664, 0xd3fd, 0xf407, 0x319e, 0x3aac, //!<precomputed CRC15 Table |
roger5641 | 0:b2692e0e4219 | 455 | 0xff35, 0x2cc8, 0xe951, 0xe263, 0x27fa, 0xad97, 0x680e, 0x633c, 0xa6a5, 0x7558, 0xb0c1, |
roger5641 | 0:b2692e0e4219 | 456 | 0xbbf3, 0x7e6a, 0x5990, 0x9c09, 0x973b, 0x52a2, 0x815f, 0x44c6, 0x4ff4, 0x8a6d, 0x5b2e, |
roger5641 | 0:b2692e0e4219 | 457 | 0x9eb7, 0x9585, 0x501c, 0x83e1, 0x4678, 0x4d4a, 0x88d3, 0xaf29, 0x6ab0, 0x6182, 0xa41b, |
roger5641 | 0:b2692e0e4219 | 458 | 0x77e6, 0xb27f, 0xb94d, 0x7cd4, 0xf6b9, 0x3320, 0x3812, 0xfd8b, 0x2e76, 0xebef, 0xe0dd, |
roger5641 | 0:b2692e0e4219 | 459 | 0x2544, 0x2be, 0xc727, 0xcc15, 0x98c, 0xda71, 0x1fe8, 0x14da, 0xd143, 0xf3c5, 0x365c, |
roger5641 | 0:b2692e0e4219 | 460 | 0x3d6e, 0xf8f7,0x2b0a, 0xee93, 0xe5a1, 0x2038, 0x7c2, 0xc25b, 0xc969, 0xcf0, 0xdf0d, |
roger5641 | 0:b2692e0e4219 | 461 | 0x1a94, 0x11a6, 0xd43f, 0x5e52, 0x9bcb, 0x90f9, 0x5560, 0x869d, 0x4304, 0x4836, 0x8daf, |
roger5641 | 0:b2692e0e4219 | 462 | 0xaa55, 0x6fcc, 0x64fe, 0xa167, 0x729a, 0xb703, 0xbc31, 0x79a8, 0xa8eb, 0x6d72, 0x6640, |
roger5641 | 0:b2692e0e4219 | 463 | 0xa3d9, 0x7024, 0xb5bd, 0xbe8f, 0x7b16, 0x5cec, 0x9975, 0x9247, 0x57de, 0x8423, 0x41ba, |
roger5641 | 0:b2692e0e4219 | 464 | 0x4a88, 0x8f11, 0x57c, 0xc0e5, 0xcbd7, 0xe4e, 0xddb3, 0x182a, 0x1318, 0xd681, 0xf17b, |
roger5641 | 0:b2692e0e4219 | 465 | 0x34e2, 0x3fd0, 0xfa49, 0x29b4, 0xec2d, 0xe71f, 0x2286, 0xa213, 0x678a, 0x6cb8, 0xa921, |
roger5641 | 0:b2692e0e4219 | 466 | 0x7adc, 0xbf45, 0xb477, 0x71ee, 0x5614, 0x938d, 0x98bf, 0x5d26, 0x8edb, 0x4b42, 0x4070, |
roger5641 | 0:b2692e0e4219 | 467 | 0x85e9, 0xf84, 0xca1d, 0xc12f, 0x4b6, 0xd74b, 0x12d2, 0x19e0, 0xdc79, 0xfb83, 0x3e1a, 0x3528, |
roger5641 | 0:b2692e0e4219 | 468 | 0xf0b1, 0x234c, 0xe6d5, 0xede7, 0x287e, 0xf93d, 0x3ca4, 0x3796, 0xf20f, 0x21f2, 0xe46b, 0xef59, |
roger5641 | 0:b2692e0e4219 | 469 | 0x2ac0, 0xd3a, 0xc8a3, 0xc391, 0x608, 0xd5f5, 0x106c, 0x1b5e, 0xdec7, 0x54aa, 0x9133, 0x9a01, |
roger5641 | 0:b2692e0e4219 | 470 | 0x5f98, 0x8c65, 0x49fc, 0x42ce, 0x8757, 0xa0ad, 0x6534, 0x6e06, 0xab9f, 0x7862, 0xbdfb, 0xb6c9, |
roger5641 | 0:b2692e0e4219 | 471 | 0x7350, 0x51d6, 0x944f, 0x9f7d, 0x5ae4, 0x8919, 0x4c80, 0x47b2, 0x822b, 0xa5d1, 0x6048, 0x6b7a, |
roger5641 | 0:b2692e0e4219 | 472 | 0xaee3, 0x7d1e, 0xb887, 0xb3b5, 0x762c, 0xfc41, 0x39d8, 0x32ea, 0xf773, 0x248e, 0xe117, 0xea25, |
roger5641 | 0:b2692e0e4219 | 473 | 0x2fbc, 0x846, 0xcddf, 0xc6ed, 0x374, 0xd089, 0x1510, 0x1e22, 0xdbbb, 0xaf8, 0xcf61, 0xc453, |
roger5641 | 0:b2692e0e4219 | 474 | 0x1ca, 0xd237, 0x17ae, 0x1c9c, 0xd905, 0xfeff, 0x3b66, 0x3054, 0xf5cd, 0x2630, 0xe3a9, 0xe89b, |
roger5641 | 0:b2692e0e4219 | 475 | 0x2d02, 0xa76f, 0x62f6, 0x69c4, 0xac5d, 0x7fa0, 0xba39, 0xb10b, 0x7492, 0x5368, 0x96f1, 0x9dc3, |
roger5641 | 0:b2692e0e4219 | 476 | 0x585a, 0x8ba7, 0x4e3e, 0x450c, 0x8095 |
roger5641 | 0:b2692e0e4219 | 477 | }; |
roger5641 | 0:b2692e0e4219 | 478 | |
roger5641 | 0:b2692e0e4219 | 479 | //********************************** LTC6811 ******************************************// |
roger5641 | 0:b2692e0e4219 | 480 | void LTC6811_init_reg_limits(uint8_t total_ic, cell_asic ic[]); |
roger5641 | 0:b2692e0e4219 | 481 | |
roger5641 | 0:b2692e0e4219 | 482 | void LTC6811_set_discharge(int Cell, |
roger5641 | 0:b2692e0e4219 | 483 | uint8_t total_ic, |
roger5641 | 0:b2692e0e4219 | 484 | cell_asic ic[]); |
roger5641 | 0:b2692e0e4219 | 485 | |
roger5641 | 0:b2692e0e4219 | 486 | //********************************** SPI ******************************************// |
roger5641 | 0:b2692e0e4219 | 487 | /* |
roger5641 | 0:b2692e0e4219 | 488 | Writes an array of bytes out of the SPI port |
roger5641 | 0:b2692e0e4219 | 489 | */ |
roger5641 | 0:b2692e0e4219 | 490 | void spi_write_array(uint8_t len, // Option: Number of bytes to be written on the SPI port |
roger5641 | 0:b2692e0e4219 | 491 | uint8_t data[] //Array of bytes to be written on the SPI port |
roger5641 | 0:b2692e0e4219 | 492 | ); |
roger5641 | 0:b2692e0e4219 | 493 | /* |
roger5641 | 0:b2692e0e4219 | 494 | Writes and read a set number of bytes using the SPI port. |
roger5641 | 0:b2692e0e4219 | 495 | |
roger5641 | 0:b2692e0e4219 | 496 | */ |
roger5641 | 0:b2692e0e4219 | 497 | |
roger5641 | 0:b2692e0e4219 | 498 | void spi_write_read(uint8_t tx_Data[],//array of data to be written on SPI port |
roger5641 | 0:b2692e0e4219 | 499 | uint8_t tx_len, //length of the tx data arry |
roger5641 | 0:b2692e0e4219 | 500 | uint8_t *rx_data,//Input: array that will store the data read by the SPI port |
roger5641 | 0:b2692e0e4219 | 501 | uint8_t rx_len //Option: number of bytes to be read from the SPI port |
roger5641 | 0:b2692e0e4219 | 502 | ); |
roger5641 | 0:b2692e0e4219 | 503 | |
roger5641 | 0:b2692e0e4219 | 504 | uint8_t spi_read_byte(uint8_t tx_dat);//name conflicts with linduino also needs to take a byte as a parameter |
roger5641 | 0:b2692e0e4219 | 505 | |
roger5641 | 0:b2692e0e4219 | 506 | //********************************** UserInterface ******************************************// |
roger5641 | 0:b2692e0e4219 | 507 | // io buffer |
roger5641 | 0:b2692e0e4219 | 508 | extern char ui_buffer[UI_BUFFER_SIZE]; |
roger5641 | 0:b2692e0e4219 | 509 | |
roger5641 | 0:b2692e0e4219 | 510 | // Read data from the serial interface into the ui_buffer buffer |
roger5641 | 0:b2692e0e4219 | 511 | uint8_t read_data(); |
roger5641 | 0:b2692e0e4219 | 512 | |
roger5641 | 0:b2692e0e4219 | 513 | // Read an integer from the serial interface. |
roger5641 | 0:b2692e0e4219 | 514 | // The routine can recognize Hex, Decimal, Octal, or Binary |
roger5641 | 0:b2692e0e4219 | 515 | // Example: |
roger5641 | 0:b2692e0e4219 | 516 | // Hex: 0x11 (0x prefix) |
roger5641 | 0:b2692e0e4219 | 517 | // Decimal: 17 |
roger5641 | 0:b2692e0e4219 | 518 | // Octal: O21 (leading letter O prefix) |
roger5641 | 0:b2692e0e4219 | 519 | // Binary: B10001 (leading letter B prefix) |
roger5641 | 0:b2692e0e4219 | 520 | int32_t read_int(); |
roger5641 | 0:b2692e0e4219 | 521 | |
roger5641 | 0:b2692e0e4219 | 522 | // Read a character from the serial interface |
roger5641 | 0:b2692e0e4219 | 523 | int8_t read_char(); |
roger5641 | 0:b2692e0e4219 | 524 | |
roger5641 | 0:b2692e0e4219 | 525 | //********************************** UserInterface ******************************************// |
roger5641 | 0:b2692e0e4219 | 526 | |
roger5641 | 0:b2692e0e4219 | 527 | |
roger5641 | 0:b2692e0e4219 | 528 | |
roger5641 | 0:b2692e0e4219 | 529 | |
roger5641 | 0:b2692e0e4219 | 530 | |
roger5641 | 0:b2692e0e4219 | 531 | #endif |
roger5641 | 0:b2692e0e4219 | 532 | |
roger5641 | 0:b2692e0e4219 | 533 | |
roger5641 | 0:b2692e0e4219 | 534 | ////////////////////////// |
roger5641 | 0:b2692e0e4219 | 535 | |
roger5641 | 0:b2692e0e4219 | 536 | void wakeup_idle(uint8_t total_ic) |
roger5641 | 0:b2692e0e4219 | 537 | { |
roger5641 | 0:b2692e0e4219 | 538 | for (int i =0; i<total_ic; i++) |
roger5641 | 0:b2692e0e4219 | 539 | { |
roger5641 | 0:b2692e0e4219 | 540 | CS_PIN = 0; |
roger5641 | 0:b2692e0e4219 | 541 | //delayMicroseconds(2); //Guarantees the isoSPI will be in ready mode |
roger5641 | 0:b2692e0e4219 | 542 | spi_read_byte(0xff); |
roger5641 | 0:b2692e0e4219 | 543 | CS_PIN = 1; |
roger5641 | 0:b2692e0e4219 | 544 | } |
roger5641 | 0:b2692e0e4219 | 545 | } |
roger5641 | 0:b2692e0e4219 | 546 | |
roger5641 | 0:b2692e0e4219 | 547 | //Generic wakeup commannd to wake the LTC6813 from sleep |
roger5641 | 0:b2692e0e4219 | 548 | void wakeup_sleep(uint8_t total_ic) |
roger5641 | 0:b2692e0e4219 | 549 | { |
roger5641 | 0:b2692e0e4219 | 550 | for (int i =0; i<total_ic; i++) |
roger5641 | 0:b2692e0e4219 | 551 | { |
roger5641 | 0:b2692e0e4219 | 552 | CS_PIN = 0; |
roger5641 | 3:2561f59cd3dd | 553 | wait_us(300); // Guarantees the LTC6813 will be in standby |
roger5641 | 0:b2692e0e4219 | 554 | CS_PIN = 1; |
roger5641 | 3:2561f59cd3dd | 555 | wait_us(10); |
roger5641 | 0:b2692e0e4219 | 556 | } |
roger5641 | 0:b2692e0e4219 | 557 | } |
roger5641 | 0:b2692e0e4219 | 558 | |
roger5641 | 0:b2692e0e4219 | 559 | |
roger5641 | 0:b2692e0e4219 | 560 | //Generic function to write 68xx commands. Function calculated PEC for tx_cmd data |
roger5641 | 0:b2692e0e4219 | 561 | void cmd_68(uint8_t tx_cmd[2]) |
roger5641 | 0:b2692e0e4219 | 562 | { |
roger5641 | 0:b2692e0e4219 | 563 | uint8_t cmd[4]; |
roger5641 | 0:b2692e0e4219 | 564 | uint16_t cmd_pec; |
roger5641 | 1:cd25bc7d2832 | 565 | // uint8_t md_bits; |
roger5641 | 0:b2692e0e4219 | 566 | |
roger5641 | 0:b2692e0e4219 | 567 | cmd[0] = tx_cmd[0]; |
roger5641 | 0:b2692e0e4219 | 568 | cmd[1] = tx_cmd[1]; |
roger5641 | 0:b2692e0e4219 | 569 | cmd_pec = pec15_calc(2, cmd); |
roger5641 | 0:b2692e0e4219 | 570 | cmd[2] = (uint8_t)(cmd_pec >> 8); |
roger5641 | 0:b2692e0e4219 | 571 | cmd[3] = (uint8_t)(cmd_pec); |
roger5641 | 0:b2692e0e4219 | 572 | CS_PIN = 0; |
roger5641 | 0:b2692e0e4219 | 573 | spi_write_array(4,cmd); |
roger5641 | 0:b2692e0e4219 | 574 | CS_PIN = 1; |
roger5641 | 0:b2692e0e4219 | 575 | } |
roger5641 | 0:b2692e0e4219 | 576 | |
roger5641 | 0:b2692e0e4219 | 577 | //Generic function to write 68xx commands and write payload data. Function calculated PEC for tx_cmd data |
roger5641 | 0:b2692e0e4219 | 578 | void write_68(uint8_t total_ic , uint8_t tx_cmd[2], uint8_t data[]) |
roger5641 | 0:b2692e0e4219 | 579 | { |
roger5641 | 0:b2692e0e4219 | 580 | const uint8_t BYTES_IN_REG = 6; |
roger5641 | 0:b2692e0e4219 | 581 | const uint8_t CMD_LEN = 4+(8*total_ic); |
roger5641 | 0:b2692e0e4219 | 582 | uint8_t *cmd; |
roger5641 | 0:b2692e0e4219 | 583 | uint16_t data_pec; |
roger5641 | 0:b2692e0e4219 | 584 | uint16_t cmd_pec; |
roger5641 | 0:b2692e0e4219 | 585 | uint8_t cmd_index; |
roger5641 | 0:b2692e0e4219 | 586 | |
roger5641 | 0:b2692e0e4219 | 587 | cmd = (uint8_t *)malloc(CMD_LEN*sizeof(uint8_t)); |
roger5641 | 0:b2692e0e4219 | 588 | cmd[0] = tx_cmd[0]; |
roger5641 | 0:b2692e0e4219 | 589 | cmd[1] = tx_cmd[1]; |
roger5641 | 0:b2692e0e4219 | 590 | cmd_pec = pec15_calc(2, cmd); |
roger5641 | 0:b2692e0e4219 | 591 | cmd[2] = (uint8_t)(cmd_pec >> 8); |
roger5641 | 0:b2692e0e4219 | 592 | cmd[3] = (uint8_t)(cmd_pec); |
roger5641 | 0:b2692e0e4219 | 593 | cmd_index = 4; |
roger5641 | 0:b2692e0e4219 | 594 | for (uint8_t current_ic = total_ic; current_ic > 0; current_ic--) // executes for each LTC681x in daisy chain, this loops starts with |
roger5641 | 0:b2692e0e4219 | 595 | { |
roger5641 | 0:b2692e0e4219 | 596 | // the last IC on the stack. The first configuration written is |
roger5641 | 0:b2692e0e4219 | 597 | // received by the last IC in the daisy chain |
roger5641 | 0:b2692e0e4219 | 598 | |
roger5641 | 0:b2692e0e4219 | 599 | for (uint8_t current_byte = 0; current_byte < BYTES_IN_REG; current_byte++) |
roger5641 | 0:b2692e0e4219 | 600 | { |
roger5641 | 0:b2692e0e4219 | 601 | cmd[cmd_index] = data[((current_ic-1)*6)+current_byte]; |
roger5641 | 0:b2692e0e4219 | 602 | cmd_index = cmd_index + 1; |
roger5641 | 0:b2692e0e4219 | 603 | } |
roger5641 | 0:b2692e0e4219 | 604 | |
roger5641 | 0:b2692e0e4219 | 605 | data_pec = (uint16_t)pec15_calc(BYTES_IN_REG, &data[(current_ic-1)*6]); // calculating the PEC for each Iss configuration register data |
roger5641 | 0:b2692e0e4219 | 606 | cmd[cmd_index] = (uint8_t)(data_pec >> 8); |
roger5641 | 0:b2692e0e4219 | 607 | cmd[cmd_index + 1] = (uint8_t)data_pec; |
roger5641 | 0:b2692e0e4219 | 608 | cmd_index = cmd_index + 2; |
roger5641 | 0:b2692e0e4219 | 609 | } |
roger5641 | 0:b2692e0e4219 | 610 | |
roger5641 | 0:b2692e0e4219 | 611 | |
roger5641 | 0:b2692e0e4219 | 612 | CS_PIN = 0; |
roger5641 | 0:b2692e0e4219 | 613 | spi_write_array(CMD_LEN, cmd); |
roger5641 | 0:b2692e0e4219 | 614 | CS_PIN = 1; |
roger5641 | 0:b2692e0e4219 | 615 | free(cmd); |
roger5641 | 0:b2692e0e4219 | 616 | } |
roger5641 | 0:b2692e0e4219 | 617 | |
roger5641 | 0:b2692e0e4219 | 618 | //Generic function to write 68xx commands and read data. Function calculated PEC for tx_cmd data |
roger5641 | 0:b2692e0e4219 | 619 | int8_t read_68( uint8_t total_ic, uint8_t tx_cmd[2], uint8_t *rx_data) |
roger5641 | 0:b2692e0e4219 | 620 | { |
roger5641 | 0:b2692e0e4219 | 621 | const uint8_t BYTES_IN_REG = 8; |
roger5641 | 0:b2692e0e4219 | 622 | uint8_t cmd[4]; |
roger5641 | 0:b2692e0e4219 | 623 | uint8_t data[256]; |
roger5641 | 0:b2692e0e4219 | 624 | int8_t pec_error = 0; |
roger5641 | 0:b2692e0e4219 | 625 | uint16_t cmd_pec; |
roger5641 | 0:b2692e0e4219 | 626 | uint16_t data_pec; |
roger5641 | 0:b2692e0e4219 | 627 | uint16_t received_pec; |
roger5641 | 0:b2692e0e4219 | 628 | |
roger5641 | 0:b2692e0e4219 | 629 | // data = (uint8_t *) malloc((8*total_ic)*sizeof(uint8_t)); // This is a problem because it can fail |
roger5641 | 0:b2692e0e4219 | 630 | |
roger5641 | 0:b2692e0e4219 | 631 | cmd[0] = tx_cmd[0]; |
roger5641 | 0:b2692e0e4219 | 632 | cmd[1] = tx_cmd[1]; |
roger5641 | 0:b2692e0e4219 | 633 | cmd_pec = pec15_calc(2, cmd); |
roger5641 | 0:b2692e0e4219 | 634 | cmd[2] = (uint8_t)(cmd_pec >> 8); |
roger5641 | 0:b2692e0e4219 | 635 | cmd[3] = (uint8_t)(cmd_pec); |
roger5641 | 0:b2692e0e4219 | 636 | |
roger5641 | 0:b2692e0e4219 | 637 | |
roger5641 | 0:b2692e0e4219 | 638 | CS_PIN = 0; |
roger5641 | 0:b2692e0e4219 | 639 | spi_write_read(cmd, 4, data, (BYTES_IN_REG*total_ic)); //Read the configuration data of all ICs on the daisy chain into |
roger5641 | 0:b2692e0e4219 | 640 | CS_PIN = 1; //rx_data[] array |
roger5641 | 0:b2692e0e4219 | 641 | |
roger5641 | 0:b2692e0e4219 | 642 | for (uint8_t current_ic = 0; current_ic < total_ic; current_ic++) //executes for each LTC681x in the daisy chain and packs the data |
roger5641 | 0:b2692e0e4219 | 643 | { |
roger5641 | 0:b2692e0e4219 | 644 | //into the r_comm array as well as check the received Config data |
roger5641 | 0:b2692e0e4219 | 645 | //for any bit errors |
roger5641 | 0:b2692e0e4219 | 646 | for (uint8_t current_byte = 0; current_byte < BYTES_IN_REG; current_byte++) |
roger5641 | 0:b2692e0e4219 | 647 | { |
roger5641 | 0:b2692e0e4219 | 648 | rx_data[(current_ic*8)+current_byte] = data[current_byte + (current_ic*BYTES_IN_REG)]; |
roger5641 | 0:b2692e0e4219 | 649 | } |
roger5641 | 0:b2692e0e4219 | 650 | received_pec = (rx_data[(current_ic*8)+6]<<8) + rx_data[(current_ic*8)+7]; |
roger5641 | 0:b2692e0e4219 | 651 | data_pec = pec15_calc(6, &rx_data[current_ic*8]); |
roger5641 | 0:b2692e0e4219 | 652 | if (received_pec != data_pec) |
roger5641 | 0:b2692e0e4219 | 653 | { |
roger5641 | 0:b2692e0e4219 | 654 | pec_error = -1; |
roger5641 | 0:b2692e0e4219 | 655 | } |
roger5641 | 0:b2692e0e4219 | 656 | } |
roger5641 | 0:b2692e0e4219 | 657 | |
roger5641 | 0:b2692e0e4219 | 658 | |
roger5641 | 0:b2692e0e4219 | 659 | return(pec_error); |
roger5641 | 0:b2692e0e4219 | 660 | } |
roger5641 | 0:b2692e0e4219 | 661 | |
roger5641 | 0:b2692e0e4219 | 662 | // Calculates and returns the CRC15 |
roger5641 | 0:b2692e0e4219 | 663 | |
roger5641 | 0:b2692e0e4219 | 664 | uint16_t pec15_calc(uint8_t len, //Number of bytes that will be used to calculate a PEC |
roger5641 | 0:b2692e0e4219 | 665 | uint8_t *data //Array of data that will be used to calculate a PEC |
roger5641 | 0:b2692e0e4219 | 666 | ) |
roger5641 | 0:b2692e0e4219 | 667 | { |
roger5641 | 0:b2692e0e4219 | 668 | uint16_t remainder,addr; |
roger5641 | 0:b2692e0e4219 | 669 | |
roger5641 | 0:b2692e0e4219 | 670 | remainder = 16;//initialize the PEC |
roger5641 | 0:b2692e0e4219 | 671 | for (uint8_t i = 0; i<len; i++) // loops for each byte in data array |
roger5641 | 0:b2692e0e4219 | 672 | { |
roger5641 | 0:b2692e0e4219 | 673 | addr = ((remainder>>7)^data[i])&0xff;//calculate PEC table address |
roger5641 | 0:b2692e0e4219 | 674 | |
roger5641 | 0:b2692e0e4219 | 675 | remainder = (remainder<<8)^crc15Table[addr]; |
roger5641 | 0:b2692e0e4219 | 676 | } |
roger5641 | 0:b2692e0e4219 | 677 | return(remainder*2);//The CRC15 has a 0 in the LSB so the remainder must be multiplied by 2 |
roger5641 | 0:b2692e0e4219 | 678 | } |
roger5641 | 0:b2692e0e4219 | 679 | |
roger5641 | 0:b2692e0e4219 | 680 | //Starts cell voltage conversion |
roger5641 | 0:b2692e0e4219 | 681 | void LTC681x_adcv( |
roger5641 | 0:b2692e0e4219 | 682 | uint8_t MD, //ADC Mode |
roger5641 | 0:b2692e0e4219 | 683 | uint8_t DCP, //Discharge Permit |
roger5641 | 0:b2692e0e4219 | 684 | uint8_t CH //Cell Channels to be measured |
roger5641 | 0:b2692e0e4219 | 685 | ) |
roger5641 | 0:b2692e0e4219 | 686 | { |
roger5641 | 0:b2692e0e4219 | 687 | uint8_t cmd[4]; |
roger5641 | 0:b2692e0e4219 | 688 | uint8_t md_bits; |
roger5641 | 0:b2692e0e4219 | 689 | |
roger5641 | 0:b2692e0e4219 | 690 | md_bits = (MD & 0x02) >> 1; |
roger5641 | 0:b2692e0e4219 | 691 | cmd[0] = md_bits + 0x02; |
roger5641 | 0:b2692e0e4219 | 692 | md_bits = (MD & 0x01) << 7; |
roger5641 | 0:b2692e0e4219 | 693 | cmd[1] = md_bits + 0x60 + (DCP<<4) + CH; |
roger5641 | 0:b2692e0e4219 | 694 | cmd_68(cmd); |
roger5641 | 0:b2692e0e4219 | 695 | } |
roger5641 | 0:b2692e0e4219 | 696 | |
roger5641 | 0:b2692e0e4219 | 697 | //Starts cell voltage overlap conversion |
roger5641 | 0:b2692e0e4219 | 698 | void LTC681x_adol( |
roger5641 | 0:b2692e0e4219 | 699 | uint8_t MD, //ADC Mode |
roger5641 | 0:b2692e0e4219 | 700 | uint8_t DCP //Discharge Permit |
roger5641 | 0:b2692e0e4219 | 701 | ) |
roger5641 | 0:b2692e0e4219 | 702 | { |
roger5641 | 0:b2692e0e4219 | 703 | uint8_t cmd[4]; |
roger5641 | 0:b2692e0e4219 | 704 | uint8_t md_bits; |
roger5641 | 0:b2692e0e4219 | 705 | md_bits = (MD & 0x02) >> 1; |
roger5641 | 0:b2692e0e4219 | 706 | cmd[0] = md_bits + 0x02; |
roger5641 | 0:b2692e0e4219 | 707 | md_bits = (MD & 0x01) << 7; |
roger5641 | 0:b2692e0e4219 | 708 | cmd[1] = md_bits + (DCP<<4) +0x01; |
roger5641 | 0:b2692e0e4219 | 709 | cmd_68(cmd); |
roger5641 | 0:b2692e0e4219 | 710 | } |
roger5641 | 0:b2692e0e4219 | 711 | |
roger5641 | 0:b2692e0e4219 | 712 | //Starts cell voltage self test conversion |
roger5641 | 0:b2692e0e4219 | 713 | void LTC681x_cvst( |
roger5641 | 0:b2692e0e4219 | 714 | uint8_t MD, //ADC Mode |
roger5641 | 0:b2692e0e4219 | 715 | uint8_t ST //Self Test |
roger5641 | 0:b2692e0e4219 | 716 | ) |
roger5641 | 0:b2692e0e4219 | 717 | { |
roger5641 | 0:b2692e0e4219 | 718 | uint8_t cmd[2]; |
roger5641 | 0:b2692e0e4219 | 719 | uint8_t md_bits; |
roger5641 | 0:b2692e0e4219 | 720 | |
roger5641 | 0:b2692e0e4219 | 721 | md_bits = (MD & 0x02) >> 1; |
roger5641 | 0:b2692e0e4219 | 722 | cmd[0] = md_bits + 0x02; |
roger5641 | 0:b2692e0e4219 | 723 | md_bits = (MD & 0x01) << 7; |
roger5641 | 0:b2692e0e4219 | 724 | cmd[1] = md_bits + ((ST)<<5) +0x07; |
roger5641 | 0:b2692e0e4219 | 725 | cmd_68(cmd); |
roger5641 | 0:b2692e0e4219 | 726 | |
roger5641 | 0:b2692e0e4219 | 727 | } |
roger5641 | 0:b2692e0e4219 | 728 | |
roger5641 | 0:b2692e0e4219 | 729 | //Start an Auxiliary Register Self Test Conversion |
roger5641 | 0:b2692e0e4219 | 730 | void LTC681x_axst( |
roger5641 | 0:b2692e0e4219 | 731 | uint8_t MD, //ADC Mode |
roger5641 | 0:b2692e0e4219 | 732 | uint8_t ST //Self Test |
roger5641 | 0:b2692e0e4219 | 733 | ) |
roger5641 | 0:b2692e0e4219 | 734 | { |
roger5641 | 0:b2692e0e4219 | 735 | uint8_t cmd[4]; |
roger5641 | 0:b2692e0e4219 | 736 | uint8_t md_bits; |
roger5641 | 0:b2692e0e4219 | 737 | |
roger5641 | 0:b2692e0e4219 | 738 | md_bits = (MD & 0x02) >> 1; |
roger5641 | 0:b2692e0e4219 | 739 | cmd[0] = md_bits + 0x04; |
roger5641 | 0:b2692e0e4219 | 740 | md_bits = (MD & 0x01) << 7; |
roger5641 | 0:b2692e0e4219 | 741 | cmd[1] = md_bits + ((ST&0x03)<<5) +0x07; |
roger5641 | 0:b2692e0e4219 | 742 | cmd_68(cmd); |
roger5641 | 0:b2692e0e4219 | 743 | |
roger5641 | 0:b2692e0e4219 | 744 | } |
roger5641 | 0:b2692e0e4219 | 745 | |
roger5641 | 0:b2692e0e4219 | 746 | //Start a Status Register Self Test Conversion |
roger5641 | 0:b2692e0e4219 | 747 | void LTC681x_statst( |
roger5641 | 0:b2692e0e4219 | 748 | uint8_t MD, //ADC Mode |
roger5641 | 0:b2692e0e4219 | 749 | uint8_t ST //Self Test |
roger5641 | 0:b2692e0e4219 | 750 | ) |
roger5641 | 0:b2692e0e4219 | 751 | { |
roger5641 | 0:b2692e0e4219 | 752 | uint8_t cmd[2]; |
roger5641 | 0:b2692e0e4219 | 753 | uint8_t md_bits; |
roger5641 | 0:b2692e0e4219 | 754 | |
roger5641 | 0:b2692e0e4219 | 755 | md_bits = (MD & 0x02) >> 1; |
roger5641 | 0:b2692e0e4219 | 756 | cmd[0] = md_bits + 0x04; |
roger5641 | 0:b2692e0e4219 | 757 | md_bits = (MD & 0x01) << 7; |
roger5641 | 0:b2692e0e4219 | 758 | cmd[1] = md_bits + ((ST&0x03)<<5) +0x0F; |
roger5641 | 0:b2692e0e4219 | 759 | cmd_68(cmd); |
roger5641 | 0:b2692e0e4219 | 760 | |
roger5641 | 0:b2692e0e4219 | 761 | } |
roger5641 | 0:b2692e0e4219 | 762 | |
roger5641 | 0:b2692e0e4219 | 763 | //This function will block operation until the ADC has finished it's conversion |
roger5641 | 0:b2692e0e4219 | 764 | uint32_t LTC681x_pollAdc() |
roger5641 | 0:b2692e0e4219 | 765 | { |
roger5641 | 0:b2692e0e4219 | 766 | uint32_t counter = 0; |
roger5641 | 0:b2692e0e4219 | 767 | uint8_t finished = 0; |
roger5641 | 0:b2692e0e4219 | 768 | uint8_t current_time = 0; |
roger5641 | 0:b2692e0e4219 | 769 | uint8_t cmd[4]; |
roger5641 | 0:b2692e0e4219 | 770 | uint16_t cmd_pec; |
roger5641 | 0:b2692e0e4219 | 771 | |
roger5641 | 0:b2692e0e4219 | 772 | |
roger5641 | 0:b2692e0e4219 | 773 | cmd[0] = 0x07; |
roger5641 | 0:b2692e0e4219 | 774 | cmd[1] = 0x14; |
roger5641 | 0:b2692e0e4219 | 775 | cmd_pec = pec15_calc(2, cmd); |
roger5641 | 0:b2692e0e4219 | 776 | cmd[2] = (uint8_t)(cmd_pec >> 8); |
roger5641 | 0:b2692e0e4219 | 777 | cmd[3] = (uint8_t)(cmd_pec); |
roger5641 | 0:b2692e0e4219 | 778 | |
roger5641 | 0:b2692e0e4219 | 779 | CS_PIN = 0; |
roger5641 | 0:b2692e0e4219 | 780 | spi_write_array(4,cmd); |
roger5641 | 0:b2692e0e4219 | 781 | |
roger5641 | 0:b2692e0e4219 | 782 | while ((counter<200000)&&(finished == 0)) |
roger5641 | 0:b2692e0e4219 | 783 | { |
roger5641 | 0:b2692e0e4219 | 784 | current_time = spi_read_byte(0xff); |
roger5641 | 0:b2692e0e4219 | 785 | if (current_time>0) |
roger5641 | 0:b2692e0e4219 | 786 | { |
roger5641 | 0:b2692e0e4219 | 787 | finished = 1; |
roger5641 | 0:b2692e0e4219 | 788 | } |
roger5641 | 0:b2692e0e4219 | 789 | else |
roger5641 | 0:b2692e0e4219 | 790 | { |
roger5641 | 0:b2692e0e4219 | 791 | counter = counter + 10; |
roger5641 | 0:b2692e0e4219 | 792 | } |
roger5641 | 0:b2692e0e4219 | 793 | } |
roger5641 | 0:b2692e0e4219 | 794 | |
roger5641 | 0:b2692e0e4219 | 795 | CS_PIN = 1; |
roger5641 | 0:b2692e0e4219 | 796 | |
roger5641 | 0:b2692e0e4219 | 797 | |
roger5641 | 0:b2692e0e4219 | 798 | return(counter); |
roger5641 | 0:b2692e0e4219 | 799 | } |
roger5641 | 0:b2692e0e4219 | 800 | |
roger5641 | 0:b2692e0e4219 | 801 | //Start a GPIO and Vref2 Conversion |
roger5641 | 0:b2692e0e4219 | 802 | void LTC681x_adax( |
roger5641 | 0:b2692e0e4219 | 803 | uint8_t MD, //ADC Mode |
roger5641 | 0:b2692e0e4219 | 804 | uint8_t CHG //GPIO Channels to be measured) |
roger5641 | 0:b2692e0e4219 | 805 | ) |
roger5641 | 0:b2692e0e4219 | 806 | { |
roger5641 | 0:b2692e0e4219 | 807 | uint8_t cmd[4]; |
roger5641 | 0:b2692e0e4219 | 808 | uint8_t md_bits; |
roger5641 | 0:b2692e0e4219 | 809 | |
roger5641 | 0:b2692e0e4219 | 810 | md_bits = (MD & 0x02) >> 1; |
roger5641 | 0:b2692e0e4219 | 811 | cmd[0] = md_bits + 0x04; |
roger5641 | 0:b2692e0e4219 | 812 | md_bits = (MD & 0x01) << 7; |
roger5641 | 0:b2692e0e4219 | 813 | cmd[1] = md_bits + 0x60 + CHG ; |
roger5641 | 0:b2692e0e4219 | 814 | cmd_68(cmd); |
roger5641 | 0:b2692e0e4219 | 815 | |
roger5641 | 0:b2692e0e4219 | 816 | } |
roger5641 | 0:b2692e0e4219 | 817 | |
roger5641 | 0:b2692e0e4219 | 818 | //Start an GPIO Redundancy test |
roger5641 | 0:b2692e0e4219 | 819 | void LTC681x_adaxd( |
roger5641 | 0:b2692e0e4219 | 820 | uint8_t MD, //ADC Mode |
roger5641 | 0:b2692e0e4219 | 821 | uint8_t CHG //GPIO Channels to be measured) |
roger5641 | 0:b2692e0e4219 | 822 | ) |
roger5641 | 0:b2692e0e4219 | 823 | { |
roger5641 | 0:b2692e0e4219 | 824 | uint8_t cmd[4]; |
roger5641 | 0:b2692e0e4219 | 825 | uint8_t md_bits; |
roger5641 | 0:b2692e0e4219 | 826 | |
roger5641 | 0:b2692e0e4219 | 827 | md_bits = (MD & 0x02) >> 1; |
roger5641 | 0:b2692e0e4219 | 828 | cmd[0] = md_bits + 0x04; |
roger5641 | 0:b2692e0e4219 | 829 | md_bits = (MD & 0x01) << 7; |
roger5641 | 0:b2692e0e4219 | 830 | cmd[1] = md_bits + CHG ; |
roger5641 | 0:b2692e0e4219 | 831 | cmd_68(cmd); |
roger5641 | 0:b2692e0e4219 | 832 | } |
roger5641 | 0:b2692e0e4219 | 833 | |
roger5641 | 0:b2692e0e4219 | 834 | //Start a Status ADC Conversion |
roger5641 | 0:b2692e0e4219 | 835 | void LTC681x_adstat( |
roger5641 | 0:b2692e0e4219 | 836 | uint8_t MD, //ADC Mode |
roger5641 | 0:b2692e0e4219 | 837 | uint8_t CHST //GPIO Channels to be measured |
roger5641 | 0:b2692e0e4219 | 838 | ) |
roger5641 | 0:b2692e0e4219 | 839 | { |
roger5641 | 0:b2692e0e4219 | 840 | uint8_t cmd[4]; |
roger5641 | 0:b2692e0e4219 | 841 | uint8_t md_bits; |
roger5641 | 0:b2692e0e4219 | 842 | |
roger5641 | 0:b2692e0e4219 | 843 | md_bits = (MD & 0x02) >> 1; |
roger5641 | 0:b2692e0e4219 | 844 | cmd[0] = md_bits + 0x04; |
roger5641 | 0:b2692e0e4219 | 845 | md_bits = (MD & 0x01) << 7; |
roger5641 | 0:b2692e0e4219 | 846 | cmd[1] = md_bits + 0x68 + CHST ; |
roger5641 | 0:b2692e0e4219 | 847 | cmd_68(cmd); |
roger5641 | 0:b2692e0e4219 | 848 | } |
roger5641 | 0:b2692e0e4219 | 849 | |
roger5641 | 0:b2692e0e4219 | 850 | // Start a Status register redundancy test Conversion |
roger5641 | 0:b2692e0e4219 | 851 | void LTC681x_adstatd( |
roger5641 | 0:b2692e0e4219 | 852 | uint8_t MD, //ADC Mode |
roger5641 | 0:b2692e0e4219 | 853 | uint8_t CHST //GPIO Channels to be measured |
roger5641 | 0:b2692e0e4219 | 854 | ) |
roger5641 | 0:b2692e0e4219 | 855 | { |
roger5641 | 0:b2692e0e4219 | 856 | uint8_t cmd[2]; |
roger5641 | 0:b2692e0e4219 | 857 | uint8_t md_bits; |
roger5641 | 0:b2692e0e4219 | 858 | |
roger5641 | 0:b2692e0e4219 | 859 | md_bits = (MD & 0x02) >> 1; |
roger5641 | 0:b2692e0e4219 | 860 | cmd[0] = md_bits + 0x04; |
roger5641 | 0:b2692e0e4219 | 861 | md_bits = (MD & 0x01) << 7; |
roger5641 | 0:b2692e0e4219 | 862 | cmd[1] = md_bits + 0x08 + CHST ; |
roger5641 | 0:b2692e0e4219 | 863 | cmd_68(cmd); |
roger5641 | 0:b2692e0e4219 | 864 | |
roger5641 | 0:b2692e0e4219 | 865 | } |
roger5641 | 0:b2692e0e4219 | 866 | |
roger5641 | 0:b2692e0e4219 | 867 | |
roger5641 | 0:b2692e0e4219 | 868 | // Start an open wire Conversion |
roger5641 | 0:b2692e0e4219 | 869 | void LTC681x_adow( |
roger5641 | 0:b2692e0e4219 | 870 | uint8_t MD, //ADC Mode |
roger5641 | 0:b2692e0e4219 | 871 | uint8_t PUP //Discharge Permit |
roger5641 | 0:b2692e0e4219 | 872 | ) |
roger5641 | 0:b2692e0e4219 | 873 | { |
roger5641 | 0:b2692e0e4219 | 874 | uint8_t cmd[2]; |
roger5641 | 0:b2692e0e4219 | 875 | uint8_t md_bits; |
roger5641 | 0:b2692e0e4219 | 876 | md_bits = (MD & 0x02) >> 1; |
roger5641 | 0:b2692e0e4219 | 877 | cmd[0] = md_bits + 0x02; |
roger5641 | 0:b2692e0e4219 | 878 | md_bits = (MD & 0x01) << 7; |
roger5641 | 0:b2692e0e4219 | 879 | cmd[1] = md_bits + 0x28 + (PUP<<6) ;//+ CH; |
roger5641 | 0:b2692e0e4219 | 880 | cmd_68(cmd); |
roger5641 | 0:b2692e0e4219 | 881 | } |
roger5641 | 0:b2692e0e4219 | 882 | |
roger5641 | 0:b2692e0e4219 | 883 | // Reads the raw cell voltage register data |
roger5641 | 0:b2692e0e4219 | 884 | void LTC681x_rdcv_reg(uint8_t reg, //Determines which cell voltage register is read back |
roger5641 | 0:b2692e0e4219 | 885 | uint8_t total_ic, //the number of ICs in the |
roger5641 | 0:b2692e0e4219 | 886 | uint8_t *data //An array of the unparsed cell codes |
roger5641 | 0:b2692e0e4219 | 887 | ) |
roger5641 | 0:b2692e0e4219 | 888 | { |
roger5641 | 0:b2692e0e4219 | 889 | const uint8_t REG_LEN = 8; //number of bytes in each ICs register + 2 bytes for the PEC |
roger5641 | 0:b2692e0e4219 | 890 | uint8_t cmd[4]; |
roger5641 | 0:b2692e0e4219 | 891 | uint16_t cmd_pec; |
roger5641 | 0:b2692e0e4219 | 892 | |
roger5641 | 0:b2692e0e4219 | 893 | if (reg == 1) //1: RDCVA |
roger5641 | 0:b2692e0e4219 | 894 | { |
roger5641 | 0:b2692e0e4219 | 895 | cmd[1] = 0x04; |
roger5641 | 0:b2692e0e4219 | 896 | cmd[0] = 0x00; |
roger5641 | 0:b2692e0e4219 | 897 | } |
roger5641 | 0:b2692e0e4219 | 898 | else if (reg == 2) //2: RDCVB |
roger5641 | 0:b2692e0e4219 | 899 | { |
roger5641 | 0:b2692e0e4219 | 900 | cmd[1] = 0x06; |
roger5641 | 0:b2692e0e4219 | 901 | cmd[0] = 0x00; |
roger5641 | 0:b2692e0e4219 | 902 | } |
roger5641 | 0:b2692e0e4219 | 903 | else if (reg == 3) //3: RDCVC |
roger5641 | 0:b2692e0e4219 | 904 | { |
roger5641 | 0:b2692e0e4219 | 905 | cmd[1] = 0x08; |
roger5641 | 0:b2692e0e4219 | 906 | cmd[0] = 0x00; |
roger5641 | 0:b2692e0e4219 | 907 | } |
roger5641 | 0:b2692e0e4219 | 908 | else if (reg == 4) //4: RDCVD |
roger5641 | 0:b2692e0e4219 | 909 | { |
roger5641 | 0:b2692e0e4219 | 910 | cmd[1] = 0x0A; |
roger5641 | 0:b2692e0e4219 | 911 | cmd[0] = 0x00; |
roger5641 | 0:b2692e0e4219 | 912 | } |
roger5641 | 0:b2692e0e4219 | 913 | else if (reg == 5) //4: RDCVE |
roger5641 | 0:b2692e0e4219 | 914 | { |
roger5641 | 0:b2692e0e4219 | 915 | cmd[1] = 0x09; |
roger5641 | 0:b2692e0e4219 | 916 | cmd[0] = 0x00; |
roger5641 | 0:b2692e0e4219 | 917 | } |
roger5641 | 0:b2692e0e4219 | 918 | else if (reg == 6) //4: RDCVF |
roger5641 | 0:b2692e0e4219 | 919 | { |
roger5641 | 0:b2692e0e4219 | 920 | cmd[1] = 0x0B; |
roger5641 | 0:b2692e0e4219 | 921 | cmd[0] = 0x00; |
roger5641 | 0:b2692e0e4219 | 922 | } |
roger5641 | 0:b2692e0e4219 | 923 | |
roger5641 | 0:b2692e0e4219 | 924 | |
roger5641 | 0:b2692e0e4219 | 925 | cmd_pec = pec15_calc(2, cmd); |
roger5641 | 0:b2692e0e4219 | 926 | cmd[2] = (uint8_t)(cmd_pec >> 8); |
roger5641 | 0:b2692e0e4219 | 927 | cmd[3] = (uint8_t)(cmd_pec); |
roger5641 | 0:b2692e0e4219 | 928 | |
roger5641 | 0:b2692e0e4219 | 929 | CS_PIN = 0; |
roger5641 | 0:b2692e0e4219 | 930 | spi_write_read(cmd,4,data,(REG_LEN*total_ic)); |
roger5641 | 0:b2692e0e4219 | 931 | CS_PIN = 1; |
roger5641 | 0:b2692e0e4219 | 932 | |
roger5641 | 0:b2692e0e4219 | 933 | } |
roger5641 | 0:b2692e0e4219 | 934 | |
roger5641 | 0:b2692e0e4219 | 935 | /* |
roger5641 | 0:b2692e0e4219 | 936 | The function reads a single GPIO voltage register and stores thre read data |
roger5641 | 0:b2692e0e4219 | 937 | in the *data point as a byte array. This function is rarely used outside of |
roger5641 | 0:b2692e0e4219 | 938 | the LTC6811_rdaux() command. |
roger5641 | 0:b2692e0e4219 | 939 | */ |
roger5641 | 0:b2692e0e4219 | 940 | void LTC681x_rdaux_reg(uint8_t reg, //Determines which GPIO voltage register is read back |
roger5641 | 0:b2692e0e4219 | 941 | uint8_t total_ic, //The number of ICs in the system |
roger5641 | 0:b2692e0e4219 | 942 | uint8_t *data //Array of the unparsed auxiliary codes |
roger5641 | 0:b2692e0e4219 | 943 | ) |
roger5641 | 0:b2692e0e4219 | 944 | { |
roger5641 | 0:b2692e0e4219 | 945 | const uint8_t REG_LEN = 8; // number of bytes in the register + 2 bytes for the PEC |
roger5641 | 0:b2692e0e4219 | 946 | uint8_t cmd[4]; |
roger5641 | 0:b2692e0e4219 | 947 | uint16_t cmd_pec; |
roger5641 | 0:b2692e0e4219 | 948 | |
roger5641 | 0:b2692e0e4219 | 949 | |
roger5641 | 0:b2692e0e4219 | 950 | if (reg == 1) //Read back auxiliary group A |
roger5641 | 0:b2692e0e4219 | 951 | { |
roger5641 | 0:b2692e0e4219 | 952 | cmd[1] = 0x0C; |
roger5641 | 0:b2692e0e4219 | 953 | cmd[0] = 0x00; |
roger5641 | 0:b2692e0e4219 | 954 | } |
roger5641 | 0:b2692e0e4219 | 955 | else if (reg == 2) //Read back auxiliary group B |
roger5641 | 0:b2692e0e4219 | 956 | { |
roger5641 | 0:b2692e0e4219 | 957 | cmd[1] = 0x0e; |
roger5641 | 0:b2692e0e4219 | 958 | cmd[0] = 0x00; |
roger5641 | 0:b2692e0e4219 | 959 | } |
roger5641 | 0:b2692e0e4219 | 960 | else if (reg == 3) //Read back auxiliary group C |
roger5641 | 0:b2692e0e4219 | 961 | { |
roger5641 | 0:b2692e0e4219 | 962 | cmd[1] = 0x0D; |
roger5641 | 0:b2692e0e4219 | 963 | cmd[0] = 0x00; |
roger5641 | 0:b2692e0e4219 | 964 | } |
roger5641 | 0:b2692e0e4219 | 965 | else if (reg == 4) //Read back auxiliary group D |
roger5641 | 0:b2692e0e4219 | 966 | { |
roger5641 | 0:b2692e0e4219 | 967 | cmd[1] = 0x0F; |
roger5641 | 0:b2692e0e4219 | 968 | cmd[0] = 0x00; |
roger5641 | 0:b2692e0e4219 | 969 | } |
roger5641 | 0:b2692e0e4219 | 970 | else //Read back auxiliary group A |
roger5641 | 0:b2692e0e4219 | 971 | { |
roger5641 | 0:b2692e0e4219 | 972 | cmd[1] = 0x0C; |
roger5641 | 0:b2692e0e4219 | 973 | cmd[0] = 0x00; |
roger5641 | 0:b2692e0e4219 | 974 | } |
roger5641 | 0:b2692e0e4219 | 975 | |
roger5641 | 0:b2692e0e4219 | 976 | cmd_pec = pec15_calc(2, cmd); |
roger5641 | 0:b2692e0e4219 | 977 | cmd[2] = (uint8_t)(cmd_pec >> 8); |
roger5641 | 0:b2692e0e4219 | 978 | cmd[3] = (uint8_t)(cmd_pec); |
roger5641 | 0:b2692e0e4219 | 979 | |
roger5641 | 0:b2692e0e4219 | 980 | CS_PIN = 0; |
roger5641 | 0:b2692e0e4219 | 981 | spi_write_read(cmd,4,data,(REG_LEN*total_ic)); |
roger5641 | 0:b2692e0e4219 | 982 | CS_PIN = 1; |
roger5641 | 0:b2692e0e4219 | 983 | |
roger5641 | 0:b2692e0e4219 | 984 | } |
roger5641 | 0:b2692e0e4219 | 985 | |
roger5641 | 0:b2692e0e4219 | 986 | /* |
roger5641 | 0:b2692e0e4219 | 987 | The function reads a single stat register and stores the read data |
roger5641 | 0:b2692e0e4219 | 988 | in the *data point as a byte array. This function is rarely used outside of |
roger5641 | 0:b2692e0e4219 | 989 | the LTC6811_rdstat() command. |
roger5641 | 0:b2692e0e4219 | 990 | */ |
roger5641 | 0:b2692e0e4219 | 991 | void LTC681x_rdstat_reg(uint8_t reg, //Determines which stat register is read back |
roger5641 | 0:b2692e0e4219 | 992 | uint8_t total_ic, //The number of ICs in the system |
roger5641 | 0:b2692e0e4219 | 993 | uint8_t *data //Array of the unparsed stat codes |
roger5641 | 0:b2692e0e4219 | 994 | ) |
roger5641 | 0:b2692e0e4219 | 995 | { |
roger5641 | 0:b2692e0e4219 | 996 | const uint8_t REG_LEN = 8; // number of bytes in the register + 2 bytes for the PEC |
roger5641 | 0:b2692e0e4219 | 997 | uint8_t cmd[4]; |
roger5641 | 0:b2692e0e4219 | 998 | uint16_t cmd_pec; |
roger5641 | 0:b2692e0e4219 | 999 | |
roger5641 | 0:b2692e0e4219 | 1000 | |
roger5641 | 0:b2692e0e4219 | 1001 | if (reg == 1) //Read back statiliary group A |
roger5641 | 0:b2692e0e4219 | 1002 | { |
roger5641 | 0:b2692e0e4219 | 1003 | cmd[1] = 0x10; |
roger5641 | 0:b2692e0e4219 | 1004 | cmd[0] = 0x00; |
roger5641 | 0:b2692e0e4219 | 1005 | } |
roger5641 | 0:b2692e0e4219 | 1006 | else if (reg == 2) //Read back statiliary group B |
roger5641 | 0:b2692e0e4219 | 1007 | { |
roger5641 | 0:b2692e0e4219 | 1008 | cmd[1] = 0x12; |
roger5641 | 0:b2692e0e4219 | 1009 | cmd[0] = 0x00; |
roger5641 | 0:b2692e0e4219 | 1010 | } |
roger5641 | 0:b2692e0e4219 | 1011 | |
roger5641 | 0:b2692e0e4219 | 1012 | else //Read back statiliary group A |
roger5641 | 0:b2692e0e4219 | 1013 | { |
roger5641 | 0:b2692e0e4219 | 1014 | cmd[1] = 0x10; |
roger5641 | 0:b2692e0e4219 | 1015 | cmd[0] = 0x00; |
roger5641 | 0:b2692e0e4219 | 1016 | } |
roger5641 | 0:b2692e0e4219 | 1017 | |
roger5641 | 0:b2692e0e4219 | 1018 | cmd_pec = pec15_calc(2, cmd); |
roger5641 | 0:b2692e0e4219 | 1019 | cmd[2] = (uint8_t)(cmd_pec >> 8); |
roger5641 | 0:b2692e0e4219 | 1020 | cmd[3] = (uint8_t)(cmd_pec); |
roger5641 | 0:b2692e0e4219 | 1021 | |
roger5641 | 0:b2692e0e4219 | 1022 | CS_PIN = 0; |
roger5641 | 0:b2692e0e4219 | 1023 | spi_write_read(cmd,4,data,(REG_LEN*total_ic)); |
roger5641 | 0:b2692e0e4219 | 1024 | CS_PIN = 1; |
roger5641 | 0:b2692e0e4219 | 1025 | |
roger5641 | 0:b2692e0e4219 | 1026 | } |
roger5641 | 0:b2692e0e4219 | 1027 | |
roger5641 | 0:b2692e0e4219 | 1028 | /* |
roger5641 | 0:b2692e0e4219 | 1029 | The command clears the cell voltage registers and intiallizes |
roger5641 | 0:b2692e0e4219 | 1030 | all values to 1. The register will read back hexadecimal 0xFF |
roger5641 | 0:b2692e0e4219 | 1031 | after the command is sent. |
roger5641 | 0:b2692e0e4219 | 1032 | */ |
roger5641 | 0:b2692e0e4219 | 1033 | void LTC681x_clrcell() |
roger5641 | 0:b2692e0e4219 | 1034 | { |
roger5641 | 0:b2692e0e4219 | 1035 | uint8_t cmd[2]= {0x07 , 0x11}; |
roger5641 | 0:b2692e0e4219 | 1036 | cmd_68(cmd); |
roger5641 | 0:b2692e0e4219 | 1037 | } |
roger5641 | 0:b2692e0e4219 | 1038 | |
roger5641 | 0:b2692e0e4219 | 1039 | /* |
roger5641 | 0:b2692e0e4219 | 1040 | The command clears the Auxiliary registers and initializes |
roger5641 | 0:b2692e0e4219 | 1041 | all values to 1. The register will read back hexadecimal 0xFF |
roger5641 | 0:b2692e0e4219 | 1042 | after the command is sent. |
roger5641 | 0:b2692e0e4219 | 1043 | */ |
roger5641 | 0:b2692e0e4219 | 1044 | void LTC681x_clraux() |
roger5641 | 0:b2692e0e4219 | 1045 | { |
roger5641 | 0:b2692e0e4219 | 1046 | uint8_t cmd[2]= {0x07 , 0x12}; |
roger5641 | 0:b2692e0e4219 | 1047 | cmd_68(cmd); |
roger5641 | 0:b2692e0e4219 | 1048 | } |
roger5641 | 0:b2692e0e4219 | 1049 | |
roger5641 | 0:b2692e0e4219 | 1050 | |
roger5641 | 0:b2692e0e4219 | 1051 | /* |
roger5641 | 0:b2692e0e4219 | 1052 | The command clears the Stat registers and intiallizes |
roger5641 | 0:b2692e0e4219 | 1053 | all values to 1. The register will read back hexadecimal 0xFF |
roger5641 | 0:b2692e0e4219 | 1054 | after the command is sent. |
roger5641 | 0:b2692e0e4219 | 1055 | |
roger5641 | 0:b2692e0e4219 | 1056 | */ |
roger5641 | 0:b2692e0e4219 | 1057 | void LTC681x_clrstat() |
roger5641 | 0:b2692e0e4219 | 1058 | { |
roger5641 | 0:b2692e0e4219 | 1059 | uint8_t cmd[2]= {0x07 , 0x13}; |
roger5641 | 0:b2692e0e4219 | 1060 | cmd_68(cmd); |
roger5641 | 0:b2692e0e4219 | 1061 | } |
roger5641 | 0:b2692e0e4219 | 1062 | |
roger5641 | 0:b2692e0e4219 | 1063 | //Starts the Mux Decoder diagnostic self test |
roger5641 | 0:b2692e0e4219 | 1064 | void LTC681x_diagn() |
roger5641 | 0:b2692e0e4219 | 1065 | { |
roger5641 | 0:b2692e0e4219 | 1066 | uint8_t cmd[2] = {0x07 , 0x15}; |
roger5641 | 0:b2692e0e4219 | 1067 | cmd_68(cmd); |
roger5641 | 0:b2692e0e4219 | 1068 | } |
roger5641 | 0:b2692e0e4219 | 1069 | |
roger5641 | 0:b2692e0e4219 | 1070 | //Reads and parses the LTC681x cell voltage registers. |
roger5641 | 0:b2692e0e4219 | 1071 | uint8_t LTC681x_rdcv(uint8_t reg, // Controls which cell voltage register is read back. |
roger5641 | 0:b2692e0e4219 | 1072 | uint8_t total_ic, // the number of ICs in the system |
roger5641 | 0:b2692e0e4219 | 1073 | cell_asic ic[] // Array of the parsed cell codes |
roger5641 | 0:b2692e0e4219 | 1074 | ) |
roger5641 | 0:b2692e0e4219 | 1075 | { |
roger5641 | 0:b2692e0e4219 | 1076 | int8_t pec_error = 0; |
roger5641 | 0:b2692e0e4219 | 1077 | uint8_t *cell_data; |
roger5641 | 0:b2692e0e4219 | 1078 | uint8_t c_ic = 0; |
roger5641 | 0:b2692e0e4219 | 1079 | cell_data = (uint8_t *) malloc((NUM_RX_BYT*total_ic)*sizeof(uint8_t)); |
roger5641 | 0:b2692e0e4219 | 1080 | |
roger5641 | 0:b2692e0e4219 | 1081 | if (reg == 0) |
roger5641 | 0:b2692e0e4219 | 1082 | { |
roger5641 | 0:b2692e0e4219 | 1083 | for (uint8_t cell_reg = 1; cell_reg<ic[0].ic_reg.num_cv_reg+1; cell_reg++) //executes once for each of the LTC6811 cell voltage registers |
roger5641 | 0:b2692e0e4219 | 1084 | { |
roger5641 | 0:b2692e0e4219 | 1085 | LTC681x_rdcv_reg(cell_reg, total_ic,cell_data ); |
roger5641 | 0:b2692e0e4219 | 1086 | for (int current_ic = 0; current_ic<total_ic; current_ic++) |
roger5641 | 0:b2692e0e4219 | 1087 | { |
roger5641 | 0:b2692e0e4219 | 1088 | if (ic->isospi_reverse == false) |
roger5641 | 0:b2692e0e4219 | 1089 | { |
roger5641 | 0:b2692e0e4219 | 1090 | c_ic = current_ic; |
roger5641 | 0:b2692e0e4219 | 1091 | } |
roger5641 | 0:b2692e0e4219 | 1092 | else |
roger5641 | 0:b2692e0e4219 | 1093 | { |
roger5641 | 0:b2692e0e4219 | 1094 | c_ic = total_ic - current_ic - 1; |
roger5641 | 0:b2692e0e4219 | 1095 | } |
roger5641 | 0:b2692e0e4219 | 1096 | pec_error = pec_error + parse_cells(current_ic,cell_reg, cell_data, |
roger5641 | 0:b2692e0e4219 | 1097 | &ic[c_ic].cells.c_codes[0], |
roger5641 | 0:b2692e0e4219 | 1098 | &ic[c_ic].cells.pec_match[0]); |
roger5641 | 0:b2692e0e4219 | 1099 | } |
roger5641 | 0:b2692e0e4219 | 1100 | } |
roger5641 | 0:b2692e0e4219 | 1101 | } |
roger5641 | 0:b2692e0e4219 | 1102 | |
roger5641 | 0:b2692e0e4219 | 1103 | else |
roger5641 | 0:b2692e0e4219 | 1104 | { |
roger5641 | 0:b2692e0e4219 | 1105 | LTC681x_rdcv_reg(reg, total_ic,cell_data); |
roger5641 | 0:b2692e0e4219 | 1106 | |
roger5641 | 0:b2692e0e4219 | 1107 | for (int current_ic = 0; current_ic<total_ic; current_ic++) |
roger5641 | 0:b2692e0e4219 | 1108 | { |
roger5641 | 0:b2692e0e4219 | 1109 | if (ic->isospi_reverse == false) |
roger5641 | 0:b2692e0e4219 | 1110 | { |
roger5641 | 0:b2692e0e4219 | 1111 | c_ic = current_ic; |
roger5641 | 0:b2692e0e4219 | 1112 | } |
roger5641 | 0:b2692e0e4219 | 1113 | else |
roger5641 | 0:b2692e0e4219 | 1114 | { |
roger5641 | 0:b2692e0e4219 | 1115 | c_ic = total_ic - current_ic - 1; |
roger5641 | 0:b2692e0e4219 | 1116 | } |
roger5641 | 0:b2692e0e4219 | 1117 | pec_error = pec_error + parse_cells(current_ic,reg, &cell_data[8*c_ic], |
roger5641 | 0:b2692e0e4219 | 1118 | &ic[c_ic].cells.c_codes[0], |
roger5641 | 0:b2692e0e4219 | 1119 | &ic[c_ic].cells.pec_match[0]); |
roger5641 | 0:b2692e0e4219 | 1120 | } |
roger5641 | 0:b2692e0e4219 | 1121 | } |
roger5641 | 0:b2692e0e4219 | 1122 | LTC681x_check_pec(total_ic,CELL,ic); |
roger5641 | 0:b2692e0e4219 | 1123 | free(cell_data); |
roger5641 | 0:b2692e0e4219 | 1124 | return(pec_error); |
roger5641 | 0:b2692e0e4219 | 1125 | } |
roger5641 | 0:b2692e0e4219 | 1126 | |
roger5641 | 0:b2692e0e4219 | 1127 | //helper function that parses voltage measurement registers |
roger5641 | 0:b2692e0e4219 | 1128 | int8_t parse_cells(uint8_t current_ic, uint8_t cell_reg, uint8_t cell_data[], uint16_t *cell_codes, uint8_t *ic_pec) |
roger5641 | 0:b2692e0e4219 | 1129 | { |
roger5641 | 0:b2692e0e4219 | 1130 | |
roger5641 | 0:b2692e0e4219 | 1131 | const uint8_t BYT_IN_REG = 6; |
roger5641 | 0:b2692e0e4219 | 1132 | const uint8_t CELL_IN_REG = 3; |
roger5641 | 0:b2692e0e4219 | 1133 | int8_t pec_error = 0; |
roger5641 | 0:b2692e0e4219 | 1134 | uint16_t parsed_cell; |
roger5641 | 0:b2692e0e4219 | 1135 | uint16_t received_pec; |
roger5641 | 0:b2692e0e4219 | 1136 | uint16_t data_pec; |
roger5641 | 0:b2692e0e4219 | 1137 | uint8_t data_counter = current_ic*NUM_RX_BYT; //data counter |
roger5641 | 0:b2692e0e4219 | 1138 | |
roger5641 | 0:b2692e0e4219 | 1139 | |
roger5641 | 0:b2692e0e4219 | 1140 | for (uint8_t current_cell = 0; current_cell<CELL_IN_REG; current_cell++) // This loop parses the read back data into cell voltages, it |
roger5641 | 0:b2692e0e4219 | 1141 | { |
roger5641 | 0:b2692e0e4219 | 1142 | // loops once for each of the 3 cell voltage codes in the register |
roger5641 | 0:b2692e0e4219 | 1143 | |
roger5641 | 0:b2692e0e4219 | 1144 | parsed_cell = cell_data[data_counter] + (cell_data[data_counter + 1] << 8);//Each cell code is received as two bytes and is combined to |
roger5641 | 0:b2692e0e4219 | 1145 | // create the parsed cell voltage code |
roger5641 | 0:b2692e0e4219 | 1146 | cell_codes[current_cell + ((cell_reg - 1) * CELL_IN_REG)] = parsed_cell; |
roger5641 | 0:b2692e0e4219 | 1147 | data_counter = data_counter + 2; //Because cell voltage codes are two bytes the data counter |
roger5641 | 0:b2692e0e4219 | 1148 | //must increment by two for each parsed cell code |
roger5641 | 0:b2692e0e4219 | 1149 | } |
roger5641 | 0:b2692e0e4219 | 1150 | |
roger5641 | 0:b2692e0e4219 | 1151 | received_pec = (cell_data[data_counter] << 8) | cell_data[data_counter+1]; //The received PEC for the current_ic is transmitted as the 7th and 8th |
roger5641 | 0:b2692e0e4219 | 1152 | //after the 6 cell voltage data bytes |
roger5641 | 0:b2692e0e4219 | 1153 | data_pec = pec15_calc(BYT_IN_REG, &cell_data[(current_ic) * NUM_RX_BYT]); |
roger5641 | 0:b2692e0e4219 | 1154 | |
roger5641 | 0:b2692e0e4219 | 1155 | if (received_pec != data_pec) |
roger5641 | 0:b2692e0e4219 | 1156 | { |
roger5641 | 0:b2692e0e4219 | 1157 | pec_error = 1; //The pec_error variable is simply set negative if any PEC errors |
roger5641 | 0:b2692e0e4219 | 1158 | ic_pec[cell_reg-1]=1; |
roger5641 | 0:b2692e0e4219 | 1159 | } |
roger5641 | 0:b2692e0e4219 | 1160 | else |
roger5641 | 0:b2692e0e4219 | 1161 | { |
roger5641 | 0:b2692e0e4219 | 1162 | ic_pec[cell_reg-1]=0; |
roger5641 | 0:b2692e0e4219 | 1163 | } |
roger5641 | 0:b2692e0e4219 | 1164 | data_counter=data_counter+2; |
roger5641 | 0:b2692e0e4219 | 1165 | return(pec_error); |
roger5641 | 0:b2692e0e4219 | 1166 | } |
roger5641 | 0:b2692e0e4219 | 1167 | |
roger5641 | 0:b2692e0e4219 | 1168 | /* |
roger5641 | 0:b2692e0e4219 | 1169 | The function is used |
roger5641 | 0:b2692e0e4219 | 1170 | to read the parsed GPIO codes of the LTC6811. This function will send the requested |
roger5641 | 0:b2692e0e4219 | 1171 | read commands parse the data and store the gpio voltages in aux_codes variable |
roger5641 | 0:b2692e0e4219 | 1172 | */ |
roger5641 | 0:b2692e0e4219 | 1173 | int8_t LTC681x_rdaux(uint8_t reg, //Determines which GPIO voltage register is read back. |
roger5641 | 0:b2692e0e4219 | 1174 | uint8_t total_ic,//the number of ICs in the system |
roger5641 | 0:b2692e0e4219 | 1175 | cell_asic ic[]//A two dimensional array of the gpio voltage codes. |
roger5641 | 0:b2692e0e4219 | 1176 | ) |
roger5641 | 0:b2692e0e4219 | 1177 | { |
roger5641 | 0:b2692e0e4219 | 1178 | uint8_t *data; |
roger5641 | 0:b2692e0e4219 | 1179 | int8_t pec_error = 0; |
roger5641 | 0:b2692e0e4219 | 1180 | uint8_t c_ic =0; |
roger5641 | 0:b2692e0e4219 | 1181 | data = (uint8_t *) malloc((NUM_RX_BYT*total_ic)*sizeof(uint8_t)); |
roger5641 | 0:b2692e0e4219 | 1182 | |
roger5641 | 0:b2692e0e4219 | 1183 | if (reg == 0) |
roger5641 | 0:b2692e0e4219 | 1184 | { |
roger5641 | 0:b2692e0e4219 | 1185 | for (uint8_t gpio_reg = 1; gpio_reg<ic[0].ic_reg.num_gpio_reg+1; gpio_reg++) //executes once for each of the LTC6811 aux voltage registers |
roger5641 | 0:b2692e0e4219 | 1186 | { |
roger5641 | 0:b2692e0e4219 | 1187 | LTC681x_rdaux_reg(gpio_reg, total_ic,data); //Reads the raw auxiliary register data into the data[] array |
roger5641 | 0:b2692e0e4219 | 1188 | for (int current_ic = 0; current_ic<total_ic; current_ic++) |
roger5641 | 0:b2692e0e4219 | 1189 | { |
roger5641 | 0:b2692e0e4219 | 1190 | if (ic->isospi_reverse == false) |
roger5641 | 0:b2692e0e4219 | 1191 | { |
roger5641 | 0:b2692e0e4219 | 1192 | c_ic = current_ic; |
roger5641 | 0:b2692e0e4219 | 1193 | } |
roger5641 | 0:b2692e0e4219 | 1194 | else |
roger5641 | 0:b2692e0e4219 | 1195 | { |
roger5641 | 0:b2692e0e4219 | 1196 | c_ic = total_ic - current_ic - 1; |
roger5641 | 0:b2692e0e4219 | 1197 | } |
roger5641 | 0:b2692e0e4219 | 1198 | pec_error = parse_cells(current_ic,gpio_reg, data, |
roger5641 | 0:b2692e0e4219 | 1199 | &ic[c_ic].aux.a_codes[0], |
roger5641 | 0:b2692e0e4219 | 1200 | &ic[c_ic].aux.pec_match[0]); |
roger5641 | 0:b2692e0e4219 | 1201 | |
roger5641 | 0:b2692e0e4219 | 1202 | } |
roger5641 | 0:b2692e0e4219 | 1203 | } |
roger5641 | 0:b2692e0e4219 | 1204 | } |
roger5641 | 0:b2692e0e4219 | 1205 | else |
roger5641 | 0:b2692e0e4219 | 1206 | { |
roger5641 | 0:b2692e0e4219 | 1207 | LTC681x_rdaux_reg(reg, total_ic, data); |
roger5641 | 0:b2692e0e4219 | 1208 | |
roger5641 | 0:b2692e0e4219 | 1209 | for (int current_ic = 0; current_ic<total_ic; current_ic++) |
roger5641 | 0:b2692e0e4219 | 1210 | { |
roger5641 | 0:b2692e0e4219 | 1211 | if (ic->isospi_reverse == false) |
roger5641 | 0:b2692e0e4219 | 1212 | { |
roger5641 | 0:b2692e0e4219 | 1213 | c_ic = current_ic; |
roger5641 | 0:b2692e0e4219 | 1214 | } |
roger5641 | 0:b2692e0e4219 | 1215 | else |
roger5641 | 0:b2692e0e4219 | 1216 | { |
roger5641 | 0:b2692e0e4219 | 1217 | c_ic = total_ic - current_ic - 1; |
roger5641 | 0:b2692e0e4219 | 1218 | } |
roger5641 | 0:b2692e0e4219 | 1219 | pec_error = parse_cells(current_ic,reg, data, |
roger5641 | 0:b2692e0e4219 | 1220 | &ic[c_ic].aux.a_codes[0], |
roger5641 | 0:b2692e0e4219 | 1221 | &ic[c_ic].aux.pec_match[0]); |
roger5641 | 0:b2692e0e4219 | 1222 | } |
roger5641 | 0:b2692e0e4219 | 1223 | |
roger5641 | 0:b2692e0e4219 | 1224 | } |
roger5641 | 0:b2692e0e4219 | 1225 | LTC681x_check_pec(total_ic,AUX,ic); |
roger5641 | 0:b2692e0e4219 | 1226 | free(data); |
roger5641 | 0:b2692e0e4219 | 1227 | return (pec_error); |
roger5641 | 0:b2692e0e4219 | 1228 | } |
roger5641 | 0:b2692e0e4219 | 1229 | |
roger5641 | 0:b2692e0e4219 | 1230 | // Reads and parses the LTC681x stat registers. |
roger5641 | 0:b2692e0e4219 | 1231 | int8_t LTC681x_rdstat(uint8_t reg, //Determines which Stat register is read back. |
roger5641 | 0:b2692e0e4219 | 1232 | uint8_t total_ic,//the number of ICs in the system |
roger5641 | 0:b2692e0e4219 | 1233 | cell_asic ic[] |
roger5641 | 0:b2692e0e4219 | 1234 | ) |
roger5641 | 0:b2692e0e4219 | 1235 | |
roger5641 | 0:b2692e0e4219 | 1236 | { |
roger5641 | 0:b2692e0e4219 | 1237 | |
roger5641 | 0:b2692e0e4219 | 1238 | const uint8_t BYT_IN_REG = 6; |
roger5641 | 0:b2692e0e4219 | 1239 | const uint8_t GPIO_IN_REG = 3; |
roger5641 | 0:b2692e0e4219 | 1240 | |
roger5641 | 0:b2692e0e4219 | 1241 | uint8_t *data; |
roger5641 | 0:b2692e0e4219 | 1242 | uint8_t data_counter = 0; |
roger5641 | 0:b2692e0e4219 | 1243 | int8_t pec_error = 0; |
roger5641 | 0:b2692e0e4219 | 1244 | uint16_t parsed_stat; |
roger5641 | 0:b2692e0e4219 | 1245 | uint16_t received_pec; |
roger5641 | 0:b2692e0e4219 | 1246 | uint16_t data_pec; |
roger5641 | 0:b2692e0e4219 | 1247 | uint8_t c_ic = 0; |
roger5641 | 0:b2692e0e4219 | 1248 | data = (uint8_t *) malloc((NUM_RX_BYT*total_ic)*sizeof(uint8_t)); |
roger5641 | 0:b2692e0e4219 | 1249 | |
roger5641 | 0:b2692e0e4219 | 1250 | if (reg == 0) |
roger5641 | 0:b2692e0e4219 | 1251 | { |
roger5641 | 0:b2692e0e4219 | 1252 | |
roger5641 | 0:b2692e0e4219 | 1253 | for (uint8_t stat_reg = 1; stat_reg< 3; stat_reg++) //executes once for each of the LTC6811 stat voltage registers |
roger5641 | 0:b2692e0e4219 | 1254 | { |
roger5641 | 0:b2692e0e4219 | 1255 | data_counter = 0; |
roger5641 | 0:b2692e0e4219 | 1256 | LTC681x_rdstat_reg(stat_reg, total_ic,data); //Reads the raw statiliary register data into the data[] array |
roger5641 | 0:b2692e0e4219 | 1257 | |
roger5641 | 0:b2692e0e4219 | 1258 | for (uint8_t current_ic = 0 ; current_ic < total_ic; current_ic++) // executes for every LTC6811 in the daisy chain |
roger5641 | 0:b2692e0e4219 | 1259 | { |
roger5641 | 0:b2692e0e4219 | 1260 | if (ic->isospi_reverse == false) |
roger5641 | 0:b2692e0e4219 | 1261 | { |
roger5641 | 0:b2692e0e4219 | 1262 | c_ic = current_ic; |
roger5641 | 0:b2692e0e4219 | 1263 | } |
roger5641 | 0:b2692e0e4219 | 1264 | else |
roger5641 | 0:b2692e0e4219 | 1265 | { |
roger5641 | 0:b2692e0e4219 | 1266 | c_ic = total_ic - current_ic - 1; |
roger5641 | 0:b2692e0e4219 | 1267 | } |
roger5641 | 0:b2692e0e4219 | 1268 | // current_ic is used as the IC counter |
roger5641 | 0:b2692e0e4219 | 1269 | if (stat_reg ==1) |
roger5641 | 0:b2692e0e4219 | 1270 | { |
roger5641 | 0:b2692e0e4219 | 1271 | for (uint8_t current_gpio = 0; current_gpio< GPIO_IN_REG; current_gpio++) // This loop parses the read back data into GPIO voltages, it |
roger5641 | 0:b2692e0e4219 | 1272 | { |
roger5641 | 0:b2692e0e4219 | 1273 | // loops once for each of the 3 gpio voltage codes in the register |
roger5641 | 0:b2692e0e4219 | 1274 | |
roger5641 | 0:b2692e0e4219 | 1275 | parsed_stat = data[data_counter] + (data[data_counter+1]<<8); //Each gpio codes is received as two bytes and is combined to |
roger5641 | 0:b2692e0e4219 | 1276 | ic[c_ic].stat.stat_codes[current_gpio] = parsed_stat; |
roger5641 | 0:b2692e0e4219 | 1277 | data_counter=data_counter+2; //Because gpio voltage codes are two bytes the data counter |
roger5641 | 0:b2692e0e4219 | 1278 | |
roger5641 | 0:b2692e0e4219 | 1279 | } |
roger5641 | 0:b2692e0e4219 | 1280 | } |
roger5641 | 0:b2692e0e4219 | 1281 | else if (stat_reg == 2) |
roger5641 | 0:b2692e0e4219 | 1282 | { |
roger5641 | 0:b2692e0e4219 | 1283 | parsed_stat = data[data_counter] + (data[data_counter+1]<<8); //Each gpio codes is received as two bytes and is combined to |
roger5641 | 0:b2692e0e4219 | 1284 | data_counter = data_counter +2; |
roger5641 | 0:b2692e0e4219 | 1285 | ic[c_ic].stat.stat_codes[3] = parsed_stat; |
roger5641 | 0:b2692e0e4219 | 1286 | ic[c_ic].stat.flags[0] = data[data_counter++]; |
roger5641 | 0:b2692e0e4219 | 1287 | ic[c_ic].stat.flags[1] = data[data_counter++]; |
roger5641 | 0:b2692e0e4219 | 1288 | ic[c_ic].stat.flags[2] = data[data_counter++]; |
roger5641 | 0:b2692e0e4219 | 1289 | ic[c_ic].stat.mux_fail[0] = (data[data_counter] & 0x02)>>1; |
roger5641 | 0:b2692e0e4219 | 1290 | ic[c_ic].stat.thsd[0] = data[data_counter++] & 0x01; |
roger5641 | 0:b2692e0e4219 | 1291 | } |
roger5641 | 0:b2692e0e4219 | 1292 | |
roger5641 | 0:b2692e0e4219 | 1293 | received_pec = (data[data_counter]<<8)+ data[data_counter+1]; //The received PEC for the current_ic is transmitted as the 7th and 8th |
roger5641 | 0:b2692e0e4219 | 1294 | //after the 6 gpio voltage data bytes |
roger5641 | 0:b2692e0e4219 | 1295 | data_pec = pec15_calc(BYT_IN_REG, &data[current_ic*NUM_RX_BYT]); |
roger5641 | 0:b2692e0e4219 | 1296 | |
roger5641 | 0:b2692e0e4219 | 1297 | if (received_pec != data_pec) |
roger5641 | 0:b2692e0e4219 | 1298 | { |
roger5641 | 0:b2692e0e4219 | 1299 | pec_error = -1; //The pec_error variable is simply set negative if any PEC errors |
roger5641 | 0:b2692e0e4219 | 1300 | ic[c_ic].stat.pec_match[stat_reg-1]=1; |
roger5641 | 0:b2692e0e4219 | 1301 | //are detected in the received serial data |
roger5641 | 0:b2692e0e4219 | 1302 | } |
roger5641 | 0:b2692e0e4219 | 1303 | else |
roger5641 | 0:b2692e0e4219 | 1304 | { |
roger5641 | 0:b2692e0e4219 | 1305 | ic[c_ic].stat.pec_match[stat_reg-1]=0; |
roger5641 | 0:b2692e0e4219 | 1306 | } |
roger5641 | 0:b2692e0e4219 | 1307 | |
roger5641 | 0:b2692e0e4219 | 1308 | data_counter=data_counter+2; //Because the transmitted PEC code is 2 bytes long the data_counter |
roger5641 | 0:b2692e0e4219 | 1309 | //must be incremented by 2 bytes to point to the next ICs gpio voltage data |
roger5641 | 0:b2692e0e4219 | 1310 | } |
roger5641 | 0:b2692e0e4219 | 1311 | |
roger5641 | 0:b2692e0e4219 | 1312 | |
roger5641 | 0:b2692e0e4219 | 1313 | } |
roger5641 | 0:b2692e0e4219 | 1314 | |
roger5641 | 0:b2692e0e4219 | 1315 | } |
roger5641 | 0:b2692e0e4219 | 1316 | else |
roger5641 | 0:b2692e0e4219 | 1317 | { |
roger5641 | 0:b2692e0e4219 | 1318 | |
roger5641 | 0:b2692e0e4219 | 1319 | LTC681x_rdstat_reg(reg, total_ic, data); |
roger5641 | 0:b2692e0e4219 | 1320 | for (int current_ic = 0 ; current_ic < total_ic; current_ic++) // executes for every LTC6811 in the daisy chain |
roger5641 | 0:b2692e0e4219 | 1321 | { |
roger5641 | 0:b2692e0e4219 | 1322 | // current_ic is used as an IC counter |
roger5641 | 0:b2692e0e4219 | 1323 | if (ic->isospi_reverse == false) |
roger5641 | 0:b2692e0e4219 | 1324 | { |
roger5641 | 0:b2692e0e4219 | 1325 | c_ic = current_ic; |
roger5641 | 0:b2692e0e4219 | 1326 | } |
roger5641 | 0:b2692e0e4219 | 1327 | else |
roger5641 | 0:b2692e0e4219 | 1328 | { |
roger5641 | 0:b2692e0e4219 | 1329 | c_ic = total_ic - current_ic - 1; |
roger5641 | 0:b2692e0e4219 | 1330 | } |
roger5641 | 0:b2692e0e4219 | 1331 | if (reg ==1) |
roger5641 | 0:b2692e0e4219 | 1332 | { |
roger5641 | 0:b2692e0e4219 | 1333 | for (uint8_t current_gpio = 0; current_gpio< GPIO_IN_REG; current_gpio++) // This loop parses the read back data into GPIO voltages, it |
roger5641 | 0:b2692e0e4219 | 1334 | { |
roger5641 | 0:b2692e0e4219 | 1335 | // loops once for each of the 3 gpio voltage codes in the register |
roger5641 | 0:b2692e0e4219 | 1336 | parsed_stat = data[data_counter] + (data[data_counter+1]<<8); //Each gpio codes is received as two bytes and is combined to |
roger5641 | 0:b2692e0e4219 | 1337 | // create the parsed gpio voltage code |
roger5641 | 0:b2692e0e4219 | 1338 | |
roger5641 | 0:b2692e0e4219 | 1339 | ic[c_ic].stat.stat_codes[current_gpio] = parsed_stat; |
roger5641 | 0:b2692e0e4219 | 1340 | data_counter=data_counter+2; //Because gpio voltage codes are two bytes the data counter |
roger5641 | 0:b2692e0e4219 | 1341 | //must increment by two for each parsed gpio voltage code |
roger5641 | 0:b2692e0e4219 | 1342 | |
roger5641 | 0:b2692e0e4219 | 1343 | } |
roger5641 | 0:b2692e0e4219 | 1344 | } |
roger5641 | 0:b2692e0e4219 | 1345 | else if (reg == 2) |
roger5641 | 0:b2692e0e4219 | 1346 | { |
roger5641 | 0:b2692e0e4219 | 1347 | parsed_stat = data[data_counter++] + (data[data_counter++]<<8); //Each gpio codes is received as two bytes and is combined to |
roger5641 | 0:b2692e0e4219 | 1348 | ic[c_ic].stat.stat_codes[3] = parsed_stat; |
roger5641 | 0:b2692e0e4219 | 1349 | ic[c_ic].stat.flags[0] = data[data_counter++]; |
roger5641 | 0:b2692e0e4219 | 1350 | ic[c_ic].stat.flags[1] = data[data_counter++]; |
roger5641 | 0:b2692e0e4219 | 1351 | ic[c_ic].stat.flags[2] = data[data_counter++]; |
roger5641 | 0:b2692e0e4219 | 1352 | ic[c_ic].stat.mux_fail[0] = (data[data_counter] & 0x02)>>1; |
roger5641 | 0:b2692e0e4219 | 1353 | ic[c_ic].stat.thsd[0] = data[data_counter++] & 0x01; |
roger5641 | 0:b2692e0e4219 | 1354 | } |
roger5641 | 0:b2692e0e4219 | 1355 | |
roger5641 | 0:b2692e0e4219 | 1356 | |
roger5641 | 0:b2692e0e4219 | 1357 | received_pec = (data[data_counter]<<8)+ data[data_counter+1]; //The received PEC for the current_ic is transmitted as the 7th and 8th |
roger5641 | 0:b2692e0e4219 | 1358 | //after the 6 gpio voltage data bytes |
roger5641 | 0:b2692e0e4219 | 1359 | data_pec = pec15_calc(BYT_IN_REG, &data[current_ic*NUM_RX_BYT]); |
roger5641 | 0:b2692e0e4219 | 1360 | if (received_pec != data_pec) |
roger5641 | 0:b2692e0e4219 | 1361 | { |
roger5641 | 0:b2692e0e4219 | 1362 | pec_error = -1; //The pec_error variable is simply set negative if any PEC errors |
roger5641 | 0:b2692e0e4219 | 1363 | ic[c_ic].stat.pec_match[reg-1]=1; |
roger5641 | 0:b2692e0e4219 | 1364 | |
roger5641 | 0:b2692e0e4219 | 1365 | } |
roger5641 | 0:b2692e0e4219 | 1366 | |
roger5641 | 0:b2692e0e4219 | 1367 | data_counter=data_counter+2; |
roger5641 | 0:b2692e0e4219 | 1368 | } |
roger5641 | 0:b2692e0e4219 | 1369 | } |
roger5641 | 0:b2692e0e4219 | 1370 | LTC681x_check_pec(total_ic,STAT,ic); |
roger5641 | 0:b2692e0e4219 | 1371 | free(data); |
roger5641 | 0:b2692e0e4219 | 1372 | return (pec_error); |
roger5641 | 0:b2692e0e4219 | 1373 | } |
roger5641 | 0:b2692e0e4219 | 1374 | |
roger5641 | 0:b2692e0e4219 | 1375 | //Write the LTC681x CFGRA |
roger5641 | 0:b2692e0e4219 | 1376 | void LTC681x_wrcfg(uint8_t total_ic, //The number of ICs being written to |
roger5641 | 0:b2692e0e4219 | 1377 | cell_asic ic[] |
roger5641 | 0:b2692e0e4219 | 1378 | ) |
roger5641 | 0:b2692e0e4219 | 1379 | { |
roger5641 | 0:b2692e0e4219 | 1380 | uint8_t cmd[2] = {0x00 , 0x01} ; |
roger5641 | 0:b2692e0e4219 | 1381 | uint8_t write_buffer[256]; |
roger5641 | 0:b2692e0e4219 | 1382 | uint8_t write_count = 0; |
roger5641 | 0:b2692e0e4219 | 1383 | uint8_t c_ic = 0; |
roger5641 | 0:b2692e0e4219 | 1384 | for (uint8_t current_ic = 0; current_ic<total_ic; current_ic++) |
roger5641 | 0:b2692e0e4219 | 1385 | { |
roger5641 | 0:b2692e0e4219 | 1386 | if (ic->isospi_reverse == true) |
roger5641 | 0:b2692e0e4219 | 1387 | { |
roger5641 | 0:b2692e0e4219 | 1388 | c_ic = current_ic; |
roger5641 | 0:b2692e0e4219 | 1389 | } |
roger5641 | 0:b2692e0e4219 | 1390 | else |
roger5641 | 0:b2692e0e4219 | 1391 | { |
roger5641 | 0:b2692e0e4219 | 1392 | c_ic = total_ic - current_ic - 1; |
roger5641 | 0:b2692e0e4219 | 1393 | } |
roger5641 | 0:b2692e0e4219 | 1394 | |
roger5641 | 0:b2692e0e4219 | 1395 | for (uint8_t data = 0; data<6; data++) |
roger5641 | 0:b2692e0e4219 | 1396 | { |
roger5641 | 0:b2692e0e4219 | 1397 | write_buffer[write_count] = ic[c_ic].config.tx_data[data]; |
roger5641 | 0:b2692e0e4219 | 1398 | write_count++; |
roger5641 | 0:b2692e0e4219 | 1399 | } |
roger5641 | 0:b2692e0e4219 | 1400 | } |
roger5641 | 0:b2692e0e4219 | 1401 | write_68(total_ic, cmd, write_buffer); |
roger5641 | 0:b2692e0e4219 | 1402 | } |
roger5641 | 0:b2692e0e4219 | 1403 | |
roger5641 | 0:b2692e0e4219 | 1404 | //Read CFGA |
roger5641 | 0:b2692e0e4219 | 1405 | int8_t LTC681x_rdcfg(uint8_t total_ic, //Number of ICs in the system |
roger5641 | 0:b2692e0e4219 | 1406 | cell_asic ic[] |
roger5641 | 0:b2692e0e4219 | 1407 | ) |
roger5641 | 0:b2692e0e4219 | 1408 | { |
roger5641 | 0:b2692e0e4219 | 1409 | uint8_t cmd[2]= {0x00 , 0x02}; |
roger5641 | 0:b2692e0e4219 | 1410 | uint8_t read_buffer[256]; |
roger5641 | 0:b2692e0e4219 | 1411 | int8_t pec_error = 0; |
roger5641 | 0:b2692e0e4219 | 1412 | uint16_t data_pec; |
roger5641 | 0:b2692e0e4219 | 1413 | uint16_t calc_pec; |
roger5641 | 0:b2692e0e4219 | 1414 | uint8_t c_ic = 0; |
roger5641 | 0:b2692e0e4219 | 1415 | pec_error = read_68(total_ic, cmd, read_buffer); |
roger5641 | 0:b2692e0e4219 | 1416 | for (uint8_t current_ic = 0; current_ic<total_ic; current_ic++) |
roger5641 | 0:b2692e0e4219 | 1417 | { |
roger5641 | 0:b2692e0e4219 | 1418 | if (ic->isospi_reverse == false) |
roger5641 | 0:b2692e0e4219 | 1419 | { |
roger5641 | 0:b2692e0e4219 | 1420 | c_ic = current_ic; |
roger5641 | 0:b2692e0e4219 | 1421 | } |
roger5641 | 0:b2692e0e4219 | 1422 | else |
roger5641 | 0:b2692e0e4219 | 1423 | { |
roger5641 | 0:b2692e0e4219 | 1424 | c_ic = total_ic - current_ic - 1; |
roger5641 | 0:b2692e0e4219 | 1425 | } |
roger5641 | 0:b2692e0e4219 | 1426 | |
roger5641 | 0:b2692e0e4219 | 1427 | for (int byte=0; byte<8; byte++) |
roger5641 | 0:b2692e0e4219 | 1428 | { |
roger5641 | 0:b2692e0e4219 | 1429 | ic[c_ic].config.rx_data[byte] = read_buffer[byte+(8*current_ic)]; |
roger5641 | 0:b2692e0e4219 | 1430 | } |
roger5641 | 0:b2692e0e4219 | 1431 | calc_pec = pec15_calc(6,&read_buffer[8*current_ic]); |
roger5641 | 0:b2692e0e4219 | 1432 | data_pec = read_buffer[7+(8*current_ic)] | (read_buffer[6+(8*current_ic)]<<8); |
roger5641 | 0:b2692e0e4219 | 1433 | if (calc_pec != data_pec ) |
roger5641 | 0:b2692e0e4219 | 1434 | { |
roger5641 | 0:b2692e0e4219 | 1435 | ic[c_ic].config.rx_pec_match = 1; |
roger5641 | 0:b2692e0e4219 | 1436 | } |
roger5641 | 0:b2692e0e4219 | 1437 | else ic[c_ic].config.rx_pec_match = 0; |
roger5641 | 0:b2692e0e4219 | 1438 | } |
roger5641 | 0:b2692e0e4219 | 1439 | LTC681x_check_pec(total_ic,CFGR,ic); |
roger5641 | 0:b2692e0e4219 | 1440 | return(pec_error); |
roger5641 | 0:b2692e0e4219 | 1441 | } |
roger5641 | 0:b2692e0e4219 | 1442 | |
roger5641 | 0:b2692e0e4219 | 1443 | //Looks up the result pattern for digital filter self test |
roger5641 | 0:b2692e0e4219 | 1444 | uint16_t LTC681x_st_lookup( |
roger5641 | 0:b2692e0e4219 | 1445 | uint8_t MD, //ADC Mode |
roger5641 | 0:b2692e0e4219 | 1446 | uint8_t ST //Self Test |
roger5641 | 0:b2692e0e4219 | 1447 | ) |
roger5641 | 0:b2692e0e4219 | 1448 | { |
roger5641 | 0:b2692e0e4219 | 1449 | uint16_t test_pattern = 0; |
roger5641 | 0:b2692e0e4219 | 1450 | if (MD == 1) |
roger5641 | 0:b2692e0e4219 | 1451 | { |
roger5641 | 0:b2692e0e4219 | 1452 | if (ST == 1) |
roger5641 | 0:b2692e0e4219 | 1453 | { |
roger5641 | 0:b2692e0e4219 | 1454 | test_pattern = 0x9565; |
roger5641 | 0:b2692e0e4219 | 1455 | } |
roger5641 | 0:b2692e0e4219 | 1456 | else |
roger5641 | 0:b2692e0e4219 | 1457 | { |
roger5641 | 0:b2692e0e4219 | 1458 | test_pattern = 0x6A9A; |
roger5641 | 0:b2692e0e4219 | 1459 | } |
roger5641 | 0:b2692e0e4219 | 1460 | } |
roger5641 | 0:b2692e0e4219 | 1461 | else |
roger5641 | 0:b2692e0e4219 | 1462 | { |
roger5641 | 0:b2692e0e4219 | 1463 | if (ST == 1) |
roger5641 | 0:b2692e0e4219 | 1464 | { |
roger5641 | 0:b2692e0e4219 | 1465 | test_pattern = 0x9555; |
roger5641 | 0:b2692e0e4219 | 1466 | } |
roger5641 | 0:b2692e0e4219 | 1467 | else |
roger5641 | 0:b2692e0e4219 | 1468 | { |
roger5641 | 0:b2692e0e4219 | 1469 | test_pattern = 0x6AAA; |
roger5641 | 0:b2692e0e4219 | 1470 | } |
roger5641 | 0:b2692e0e4219 | 1471 | } |
roger5641 | 0:b2692e0e4219 | 1472 | return(test_pattern); |
roger5641 | 0:b2692e0e4219 | 1473 | } |
roger5641 | 0:b2692e0e4219 | 1474 | |
roger5641 | 0:b2692e0e4219 | 1475 | //Clears all of the DCC bits in the configuration registers |
roger5641 | 0:b2692e0e4219 | 1476 | void clear_discharge(uint8_t total_ic, cell_asic ic[]) |
roger5641 | 0:b2692e0e4219 | 1477 | { |
roger5641 | 0:b2692e0e4219 | 1478 | for (int i=0; i<total_ic; i++) |
roger5641 | 0:b2692e0e4219 | 1479 | { |
roger5641 | 0:b2692e0e4219 | 1480 | ic[i].config.tx_data[4] = 0; |
roger5641 | 0:b2692e0e4219 | 1481 | ic[i].config.tx_data[5] = 0; |
roger5641 | 0:b2692e0e4219 | 1482 | } |
roger5641 | 0:b2692e0e4219 | 1483 | } |
roger5641 | 0:b2692e0e4219 | 1484 | |
roger5641 | 0:b2692e0e4219 | 1485 | // Runs the Digital Filter Self Test |
roger5641 | 0:b2692e0e4219 | 1486 | int16_t LTC681x_run_cell_adc_st(uint8_t adc_reg,uint8_t total_ic, cell_asic ic[]) |
roger5641 | 0:b2692e0e4219 | 1487 | { |
roger5641 | 0:b2692e0e4219 | 1488 | int16_t error = 0; |
roger5641 | 0:b2692e0e4219 | 1489 | uint16_t expected_result = 0; |
roger5641 | 0:b2692e0e4219 | 1490 | for (int self_test = 1; self_test<3; self_test++) |
roger5641 | 0:b2692e0e4219 | 1491 | { |
roger5641 | 0:b2692e0e4219 | 1492 | |
roger5641 | 0:b2692e0e4219 | 1493 | expected_result = LTC681x_st_lookup(2,self_test); |
roger5641 | 0:b2692e0e4219 | 1494 | wakeup_idle(total_ic); |
roger5641 | 0:b2692e0e4219 | 1495 | switch (adc_reg) |
roger5641 | 0:b2692e0e4219 | 1496 | { |
roger5641 | 0:b2692e0e4219 | 1497 | case CELL: |
roger5641 | 0:b2692e0e4219 | 1498 | wakeup_idle(total_ic); |
roger5641 | 0:b2692e0e4219 | 1499 | LTC681x_clrcell(); |
roger5641 | 0:b2692e0e4219 | 1500 | LTC681x_cvst(2,self_test); |
roger5641 | 0:b2692e0e4219 | 1501 | LTC681x_pollAdc();//this isn't working |
roger5641 | 0:b2692e0e4219 | 1502 | wakeup_idle(total_ic); |
roger5641 | 0:b2692e0e4219 | 1503 | error = LTC681x_rdcv(0, total_ic,ic); |
roger5641 | 0:b2692e0e4219 | 1504 | for (int cic = 0; cic < total_ic; cic++) |
roger5641 | 0:b2692e0e4219 | 1505 | { |
roger5641 | 0:b2692e0e4219 | 1506 | for (int channel=0; channel< ic[cic].ic_reg.cell_channels; channel++) |
roger5641 | 0:b2692e0e4219 | 1507 | { |
roger5641 | 0:b2692e0e4219 | 1508 | if (ic[cic].cells.c_codes[channel] != expected_result) |
roger5641 | 0:b2692e0e4219 | 1509 | { |
roger5641 | 0:b2692e0e4219 | 1510 | error = error+1; |
roger5641 | 0:b2692e0e4219 | 1511 | } |
roger5641 | 0:b2692e0e4219 | 1512 | } |
roger5641 | 0:b2692e0e4219 | 1513 | } |
roger5641 | 0:b2692e0e4219 | 1514 | break; |
roger5641 | 0:b2692e0e4219 | 1515 | case AUX: |
roger5641 | 0:b2692e0e4219 | 1516 | error = 0; |
roger5641 | 0:b2692e0e4219 | 1517 | wakeup_idle(total_ic); |
roger5641 | 0:b2692e0e4219 | 1518 | LTC681x_clraux(); |
roger5641 | 0:b2692e0e4219 | 1519 | LTC681x_axst(2,self_test); |
roger5641 | 0:b2692e0e4219 | 1520 | LTC681x_pollAdc(); |
roger5641 | 0:b2692e0e4219 | 1521 | wait_ms(10); |
roger5641 | 0:b2692e0e4219 | 1522 | wakeup_idle(total_ic); |
roger5641 | 0:b2692e0e4219 | 1523 | LTC681x_rdaux(0, total_ic,ic); |
roger5641 | 0:b2692e0e4219 | 1524 | for (int cic = 0; cic < total_ic; cic++) |
roger5641 | 0:b2692e0e4219 | 1525 | { |
roger5641 | 0:b2692e0e4219 | 1526 | for (int channel=0; channel< ic[cic].ic_reg.aux_channels; channel++) |
roger5641 | 0:b2692e0e4219 | 1527 | { |
roger5641 | 0:b2692e0e4219 | 1528 | if (ic[cic].aux.a_codes[channel] != expected_result) |
roger5641 | 0:b2692e0e4219 | 1529 | { |
roger5641 | 0:b2692e0e4219 | 1530 | error = error+1; |
roger5641 | 0:b2692e0e4219 | 1531 | } |
roger5641 | 0:b2692e0e4219 | 1532 | } |
roger5641 | 0:b2692e0e4219 | 1533 | } |
roger5641 | 0:b2692e0e4219 | 1534 | break; |
roger5641 | 0:b2692e0e4219 | 1535 | case STAT: |
roger5641 | 0:b2692e0e4219 | 1536 | wakeup_idle(total_ic); |
roger5641 | 0:b2692e0e4219 | 1537 | LTC681x_clrstat(); |
roger5641 | 0:b2692e0e4219 | 1538 | LTC681x_statst(2,self_test); |
roger5641 | 0:b2692e0e4219 | 1539 | LTC681x_pollAdc(); |
roger5641 | 0:b2692e0e4219 | 1540 | wakeup_idle(total_ic); |
roger5641 | 0:b2692e0e4219 | 1541 | error = LTC681x_rdstat(0,total_ic,ic); |
roger5641 | 0:b2692e0e4219 | 1542 | for (int cic = 0; cic < total_ic; cic++) |
roger5641 | 0:b2692e0e4219 | 1543 | { |
roger5641 | 0:b2692e0e4219 | 1544 | for (int channel=0; channel< ic[cic].ic_reg.stat_channels; channel++) |
roger5641 | 0:b2692e0e4219 | 1545 | { |
roger5641 | 0:b2692e0e4219 | 1546 | if (ic[cic].stat.stat_codes[channel] != expected_result) |
roger5641 | 0:b2692e0e4219 | 1547 | { |
roger5641 | 0:b2692e0e4219 | 1548 | error = error+1; |
roger5641 | 0:b2692e0e4219 | 1549 | } |
roger5641 | 0:b2692e0e4219 | 1550 | } |
roger5641 | 0:b2692e0e4219 | 1551 | } |
roger5641 | 0:b2692e0e4219 | 1552 | break; |
roger5641 | 0:b2692e0e4219 | 1553 | |
roger5641 | 0:b2692e0e4219 | 1554 | default: |
roger5641 | 0:b2692e0e4219 | 1555 | error = -1; |
roger5641 | 0:b2692e0e4219 | 1556 | break; |
roger5641 | 0:b2692e0e4219 | 1557 | } |
roger5641 | 0:b2692e0e4219 | 1558 | } |
roger5641 | 0:b2692e0e4219 | 1559 | return(error); |
roger5641 | 0:b2692e0e4219 | 1560 | } |
roger5641 | 0:b2692e0e4219 | 1561 | |
roger5641 | 0:b2692e0e4219 | 1562 | //runs the redundancy self test |
roger5641 | 0:b2692e0e4219 | 1563 | int16_t LTC681x_run_adc_redundancy_st(uint8_t adc_mode, uint8_t adc_reg, uint8_t total_ic, cell_asic ic[]) |
roger5641 | 0:b2692e0e4219 | 1564 | { |
roger5641 | 0:b2692e0e4219 | 1565 | int16_t error = 0; |
roger5641 | 0:b2692e0e4219 | 1566 | for (int self_test = 1; self_test<3; self_test++) |
roger5641 | 0:b2692e0e4219 | 1567 | { |
roger5641 | 0:b2692e0e4219 | 1568 | wakeup_idle(total_ic); |
roger5641 | 0:b2692e0e4219 | 1569 | switch (adc_reg) |
roger5641 | 0:b2692e0e4219 | 1570 | { |
roger5641 | 0:b2692e0e4219 | 1571 | case AUX: |
roger5641 | 0:b2692e0e4219 | 1572 | LTC681x_clraux(); |
roger5641 | 0:b2692e0e4219 | 1573 | LTC681x_adaxd(adc_mode,AUX_CH_ALL); |
roger5641 | 0:b2692e0e4219 | 1574 | LTC681x_pollAdc(); |
roger5641 | 0:b2692e0e4219 | 1575 | wakeup_idle(total_ic); |
roger5641 | 0:b2692e0e4219 | 1576 | error = LTC681x_rdaux(0, total_ic,ic); |
roger5641 | 0:b2692e0e4219 | 1577 | for (int cic = 0; cic < total_ic; cic++) |
roger5641 | 0:b2692e0e4219 | 1578 | { |
roger5641 | 0:b2692e0e4219 | 1579 | for (int channel=0; channel< ic[cic].ic_reg.aux_channels; channel++) |
roger5641 | 0:b2692e0e4219 | 1580 | { |
roger5641 | 0:b2692e0e4219 | 1581 | if (ic[cic].aux.a_codes[channel] >= 65280) |
roger5641 | 0:b2692e0e4219 | 1582 | { |
roger5641 | 0:b2692e0e4219 | 1583 | error = error+1; |
roger5641 | 0:b2692e0e4219 | 1584 | } |
roger5641 | 0:b2692e0e4219 | 1585 | } |
roger5641 | 0:b2692e0e4219 | 1586 | } |
roger5641 | 0:b2692e0e4219 | 1587 | break; |
roger5641 | 0:b2692e0e4219 | 1588 | case STAT: |
roger5641 | 0:b2692e0e4219 | 1589 | LTC681x_clrstat(); |
roger5641 | 0:b2692e0e4219 | 1590 | LTC681x_adstatd(adc_mode,STAT_CH_ALL); |
roger5641 | 0:b2692e0e4219 | 1591 | LTC681x_pollAdc(); |
roger5641 | 0:b2692e0e4219 | 1592 | wakeup_idle(total_ic); |
roger5641 | 0:b2692e0e4219 | 1593 | error = LTC681x_rdstat(0,total_ic,ic); |
roger5641 | 0:b2692e0e4219 | 1594 | for (int cic = 0; cic < total_ic; cic++) |
roger5641 | 0:b2692e0e4219 | 1595 | { |
roger5641 | 0:b2692e0e4219 | 1596 | for (int channel=0; channel< ic[cic].ic_reg.stat_channels; channel++) |
roger5641 | 0:b2692e0e4219 | 1597 | { |
roger5641 | 0:b2692e0e4219 | 1598 | if (ic[cic].stat.stat_codes[channel] >= 65280) |
roger5641 | 0:b2692e0e4219 | 1599 | { |
roger5641 | 0:b2692e0e4219 | 1600 | error = error+1; |
roger5641 | 0:b2692e0e4219 | 1601 | } |
roger5641 | 0:b2692e0e4219 | 1602 | } |
roger5641 | 0:b2692e0e4219 | 1603 | } |
roger5641 | 0:b2692e0e4219 | 1604 | break; |
roger5641 | 0:b2692e0e4219 | 1605 | |
roger5641 | 0:b2692e0e4219 | 1606 | default: |
roger5641 | 0:b2692e0e4219 | 1607 | error = -1; |
roger5641 | 0:b2692e0e4219 | 1608 | break; |
roger5641 | 0:b2692e0e4219 | 1609 | } |
roger5641 | 0:b2692e0e4219 | 1610 | } |
roger5641 | 0:b2692e0e4219 | 1611 | return(error); |
roger5641 | 0:b2692e0e4219 | 1612 | } |
roger5641 | 0:b2692e0e4219 | 1613 | |
roger5641 | 0:b2692e0e4219 | 1614 | //Runs the datasheet algorithm for open wire |
roger5641 | 0:b2692e0e4219 | 1615 | void LTC681x_run_openwire(uint8_t total_ic, cell_asic ic[]) |
roger5641 | 0:b2692e0e4219 | 1616 | { |
roger5641 | 0:b2692e0e4219 | 1617 | uint16_t OPENWIRE_THRESHOLD = 4000; |
roger5641 | 0:b2692e0e4219 | 1618 | const uint8_t N_CHANNELS = ic[0].ic_reg.cell_channels; |
roger5641 | 0:b2692e0e4219 | 1619 | |
roger5641 | 0:b2692e0e4219 | 1620 | cell_asic pullUp_cell_codes[total_ic]; |
roger5641 | 0:b2692e0e4219 | 1621 | cell_asic pullDwn_cell_codes[total_ic]; |
roger5641 | 0:b2692e0e4219 | 1622 | cell_asic openWire_delta[total_ic]; |
roger5641 | 0:b2692e0e4219 | 1623 | int8_t error; |
roger5641 | 0:b2692e0e4219 | 1624 | |
roger5641 | 0:b2692e0e4219 | 1625 | wakeup_sleep(total_ic); |
roger5641 | 0:b2692e0e4219 | 1626 | LTC681x_adow(MD_7KHZ_3KHZ,PULL_UP_CURRENT); |
roger5641 | 0:b2692e0e4219 | 1627 | LTC681x_pollAdc(); |
roger5641 | 0:b2692e0e4219 | 1628 | wakeup_idle(total_ic); |
roger5641 | 0:b2692e0e4219 | 1629 | LTC681x_adow(MD_7KHZ_3KHZ,PULL_UP_CURRENT); |
roger5641 | 0:b2692e0e4219 | 1630 | LTC681x_pollAdc(); |
roger5641 | 0:b2692e0e4219 | 1631 | wakeup_idle(total_ic); |
roger5641 | 0:b2692e0e4219 | 1632 | error = LTC681x_rdcv(0, total_ic,pullUp_cell_codes); |
roger5641 | 0:b2692e0e4219 | 1633 | |
roger5641 | 0:b2692e0e4219 | 1634 | wakeup_idle(total_ic); |
roger5641 | 0:b2692e0e4219 | 1635 | LTC681x_adow(MD_7KHZ_3KHZ,PULL_DOWN_CURRENT); |
roger5641 | 0:b2692e0e4219 | 1636 | LTC681x_pollAdc(); |
roger5641 | 0:b2692e0e4219 | 1637 | wakeup_idle(total_ic); |
roger5641 | 0:b2692e0e4219 | 1638 | LTC681x_adow(MD_7KHZ_3KHZ,PULL_DOWN_CURRENT); |
roger5641 | 0:b2692e0e4219 | 1639 | LTC681x_pollAdc(); |
roger5641 | 0:b2692e0e4219 | 1640 | wakeup_idle(total_ic); |
roger5641 | 0:b2692e0e4219 | 1641 | error = LTC681x_rdcv(0, total_ic,pullDwn_cell_codes); |
roger5641 | 0:b2692e0e4219 | 1642 | |
roger5641 | 0:b2692e0e4219 | 1643 | for (int cic=0; cic<total_ic; cic++) |
roger5641 | 0:b2692e0e4219 | 1644 | { |
roger5641 | 0:b2692e0e4219 | 1645 | ic[cic].system_open_wire =0; |
roger5641 | 0:b2692e0e4219 | 1646 | for (int cell=0; cell<N_CHANNELS; cell++) |
roger5641 | 0:b2692e0e4219 | 1647 | { |
roger5641 | 0:b2692e0e4219 | 1648 | if (pullDwn_cell_codes[cic].cells.c_codes[cell]>pullUp_cell_codes[cic].cells.c_codes[cell]) |
roger5641 | 0:b2692e0e4219 | 1649 | { |
roger5641 | 0:b2692e0e4219 | 1650 | openWire_delta[cic].cells.c_codes[cell] = pullDwn_cell_codes[cic].cells.c_codes[cell] - pullUp_cell_codes[cic].cells.c_codes[cell] ; |
roger5641 | 0:b2692e0e4219 | 1651 | } |
roger5641 | 0:b2692e0e4219 | 1652 | else |
roger5641 | 0:b2692e0e4219 | 1653 | { |
roger5641 | 0:b2692e0e4219 | 1654 | openWire_delta[cic].cells.c_codes[cell] = 0; |
roger5641 | 0:b2692e0e4219 | 1655 | } |
roger5641 | 0:b2692e0e4219 | 1656 | |
roger5641 | 0:b2692e0e4219 | 1657 | } |
roger5641 | 0:b2692e0e4219 | 1658 | } |
roger5641 | 0:b2692e0e4219 | 1659 | for (int cic=0; cic<total_ic; cic++) |
roger5641 | 0:b2692e0e4219 | 1660 | { |
roger5641 | 0:b2692e0e4219 | 1661 | for (int cell=1; cell<N_CHANNELS; cell++) |
roger5641 | 0:b2692e0e4219 | 1662 | { |
roger5641 | 0:b2692e0e4219 | 1663 | |
roger5641 | 0:b2692e0e4219 | 1664 | if (openWire_delta[cic].cells.c_codes[cell]>OPENWIRE_THRESHOLD) |
roger5641 | 0:b2692e0e4219 | 1665 | { |
roger5641 | 0:b2692e0e4219 | 1666 | ic[cic].system_open_wire += (1<<cell); |
roger5641 | 0:b2692e0e4219 | 1667 | |
roger5641 | 0:b2692e0e4219 | 1668 | } |
roger5641 | 0:b2692e0e4219 | 1669 | } |
roger5641 | 0:b2692e0e4219 | 1670 | if (pullUp_cell_codes[cic].cells.c_codes[0] == 0) |
roger5641 | 0:b2692e0e4219 | 1671 | { |
roger5641 | 0:b2692e0e4219 | 1672 | ic[cic].system_open_wire += 1; |
roger5641 | 0:b2692e0e4219 | 1673 | } |
roger5641 | 0:b2692e0e4219 | 1674 | if (pullUp_cell_codes[cic].cells.c_codes[N_CHANNELS-1] == 0) |
roger5641 | 0:b2692e0e4219 | 1675 | { |
roger5641 | 0:b2692e0e4219 | 1676 | ic[cic].system_open_wire += (1<<(N_CHANNELS)); |
roger5641 | 0:b2692e0e4219 | 1677 | } |
roger5641 | 0:b2692e0e4219 | 1678 | } |
roger5641 | 0:b2692e0e4219 | 1679 | } |
roger5641 | 0:b2692e0e4219 | 1680 | |
roger5641 | 0:b2692e0e4219 | 1681 | // Runs the ADC overlap test for the IC |
roger5641 | 0:b2692e0e4219 | 1682 | uint16_t LTC681x_run_adc_overlap(uint8_t total_ic, cell_asic ic[]) |
roger5641 | 0:b2692e0e4219 | 1683 | { |
roger5641 | 0:b2692e0e4219 | 1684 | uint16_t error = 0; |
roger5641 | 0:b2692e0e4219 | 1685 | int32_t measure_delta =0; |
roger5641 | 0:b2692e0e4219 | 1686 | int16_t failure_pos_limit = 20; |
roger5641 | 0:b2692e0e4219 | 1687 | int16_t failure_neg_limit = -20; |
roger5641 | 0:b2692e0e4219 | 1688 | wakeup_idle(total_ic); |
roger5641 | 0:b2692e0e4219 | 1689 | LTC681x_adol(MD_7KHZ_3KHZ,DCP_DISABLED); |
roger5641 | 0:b2692e0e4219 | 1690 | LTC681x_pollAdc(); |
roger5641 | 0:b2692e0e4219 | 1691 | wakeup_idle(total_ic); |
roger5641 | 0:b2692e0e4219 | 1692 | error = LTC681x_rdcv(0, total_ic,ic); |
roger5641 | 0:b2692e0e4219 | 1693 | for (int cic = 0; cic<total_ic; cic++) |
roger5641 | 0:b2692e0e4219 | 1694 | { |
roger5641 | 0:b2692e0e4219 | 1695 | measure_delta = (int32_t)ic[cic].cells.c_codes[6]-(int32_t)ic[cic].cells.c_codes[7]; |
roger5641 | 0:b2692e0e4219 | 1696 | if ((measure_delta>failure_pos_limit) || (measure_delta<failure_neg_limit)) |
roger5641 | 0:b2692e0e4219 | 1697 | { |
roger5641 | 0:b2692e0e4219 | 1698 | error = error | (1<<(cic-1)); |
roger5641 | 0:b2692e0e4219 | 1699 | } |
roger5641 | 0:b2692e0e4219 | 1700 | } |
roger5641 | 0:b2692e0e4219 | 1701 | return(error); |
roger5641 | 0:b2692e0e4219 | 1702 | } |
roger5641 | 0:b2692e0e4219 | 1703 | |
roger5641 | 0:b2692e0e4219 | 1704 | //Helper function that increments PEC counters |
roger5641 | 0:b2692e0e4219 | 1705 | void LTC681x_check_pec(uint8_t total_ic,uint8_t reg, cell_asic ic[]) |
roger5641 | 0:b2692e0e4219 | 1706 | { |
roger5641 | 0:b2692e0e4219 | 1707 | switch (reg) |
roger5641 | 0:b2692e0e4219 | 1708 | { |
roger5641 | 0:b2692e0e4219 | 1709 | case CFGR: |
roger5641 | 0:b2692e0e4219 | 1710 | for (int current_ic = 0 ; current_ic < total_ic; current_ic++) |
roger5641 | 0:b2692e0e4219 | 1711 | { |
roger5641 | 0:b2692e0e4219 | 1712 | ic[current_ic].crc_count.pec_count = ic[current_ic].crc_count.pec_count + ic[current_ic].config.rx_pec_match; |
roger5641 | 0:b2692e0e4219 | 1713 | ic[current_ic].crc_count.cfgr_pec = ic[current_ic].crc_count.cfgr_pec + ic[current_ic].config.rx_pec_match; |
roger5641 | 0:b2692e0e4219 | 1714 | } |
roger5641 | 0:b2692e0e4219 | 1715 | break; |
roger5641 | 0:b2692e0e4219 | 1716 | |
roger5641 | 0:b2692e0e4219 | 1717 | case CFGRB: |
roger5641 | 0:b2692e0e4219 | 1718 | for (int current_ic = 0 ; current_ic < total_ic; current_ic++) |
roger5641 | 0:b2692e0e4219 | 1719 | { |
roger5641 | 0:b2692e0e4219 | 1720 | ic[current_ic].crc_count.pec_count = ic[current_ic].crc_count.pec_count + ic[current_ic].configb.rx_pec_match; |
roger5641 | 0:b2692e0e4219 | 1721 | ic[current_ic].crc_count.cfgr_pec = ic[current_ic].crc_count.cfgr_pec + ic[current_ic].configb.rx_pec_match; |
roger5641 | 0:b2692e0e4219 | 1722 | } |
roger5641 | 0:b2692e0e4219 | 1723 | break; |
roger5641 | 0:b2692e0e4219 | 1724 | case CELL: |
roger5641 | 0:b2692e0e4219 | 1725 | for (int current_ic = 0 ; current_ic < total_ic; current_ic++) |
roger5641 | 0:b2692e0e4219 | 1726 | { |
roger5641 | 0:b2692e0e4219 | 1727 | for (int i=0; i<ic[0].ic_reg.num_cv_reg; i++) |
roger5641 | 0:b2692e0e4219 | 1728 | { |
roger5641 | 0:b2692e0e4219 | 1729 | ic[current_ic].crc_count.pec_count = ic[current_ic].crc_count.pec_count + ic[current_ic].cells.pec_match[i]; |
roger5641 | 0:b2692e0e4219 | 1730 | ic[current_ic].crc_count.cell_pec[i] = ic[current_ic].crc_count.cell_pec[i] + ic[current_ic].cells.pec_match[i]; |
roger5641 | 0:b2692e0e4219 | 1731 | } |
roger5641 | 0:b2692e0e4219 | 1732 | } |
roger5641 | 0:b2692e0e4219 | 1733 | break; |
roger5641 | 0:b2692e0e4219 | 1734 | case AUX: |
roger5641 | 0:b2692e0e4219 | 1735 | for (int current_ic = 0 ; current_ic < total_ic; current_ic++) |
roger5641 | 0:b2692e0e4219 | 1736 | { |
roger5641 | 0:b2692e0e4219 | 1737 | for (int i=0; i<ic[0].ic_reg.num_gpio_reg; i++) |
roger5641 | 0:b2692e0e4219 | 1738 | { |
roger5641 | 0:b2692e0e4219 | 1739 | ic[current_ic].crc_count.pec_count = ic[current_ic].crc_count.pec_count + (ic[current_ic].aux.pec_match[i]); |
roger5641 | 0:b2692e0e4219 | 1740 | ic[current_ic].crc_count.aux_pec[i] = ic[current_ic].crc_count.aux_pec[i] + (ic[current_ic].aux.pec_match[i]); |
roger5641 | 0:b2692e0e4219 | 1741 | } |
roger5641 | 0:b2692e0e4219 | 1742 | } |
roger5641 | 0:b2692e0e4219 | 1743 | |
roger5641 | 0:b2692e0e4219 | 1744 | break; |
roger5641 | 0:b2692e0e4219 | 1745 | case STAT: |
roger5641 | 0:b2692e0e4219 | 1746 | for (int current_ic = 0 ; current_ic < total_ic; current_ic++) |
roger5641 | 0:b2692e0e4219 | 1747 | { |
roger5641 | 0:b2692e0e4219 | 1748 | |
roger5641 | 0:b2692e0e4219 | 1749 | for (int i=0; i<ic[0].ic_reg.num_stat_reg-1; i++) |
roger5641 | 0:b2692e0e4219 | 1750 | { |
roger5641 | 0:b2692e0e4219 | 1751 | ic[current_ic].crc_count.pec_count = ic[current_ic].crc_count.pec_count + ic[current_ic].stat.pec_match[i]; |
roger5641 | 0:b2692e0e4219 | 1752 | ic[current_ic].crc_count.stat_pec[i] = ic[current_ic].crc_count.stat_pec[i] + ic[current_ic].stat.pec_match[i]; |
roger5641 | 0:b2692e0e4219 | 1753 | } |
roger5641 | 0:b2692e0e4219 | 1754 | } |
roger5641 | 0:b2692e0e4219 | 1755 | break; |
roger5641 | 0:b2692e0e4219 | 1756 | default: |
roger5641 | 0:b2692e0e4219 | 1757 | break; |
roger5641 | 0:b2692e0e4219 | 1758 | } |
roger5641 | 0:b2692e0e4219 | 1759 | } |
roger5641 | 0:b2692e0e4219 | 1760 | |
roger5641 | 0:b2692e0e4219 | 1761 | //Helper Function to reset PEC counters |
roger5641 | 0:b2692e0e4219 | 1762 | void LTC681x_reset_crc_count(uint8_t total_ic, cell_asic ic[]) |
roger5641 | 0:b2692e0e4219 | 1763 | { |
roger5641 | 0:b2692e0e4219 | 1764 | for (int current_ic = 0 ; current_ic < total_ic; current_ic++) |
roger5641 | 0:b2692e0e4219 | 1765 | { |
roger5641 | 0:b2692e0e4219 | 1766 | ic[current_ic].crc_count.pec_count = 0; |
roger5641 | 0:b2692e0e4219 | 1767 | ic[current_ic].crc_count.cfgr_pec = 0; |
roger5641 | 0:b2692e0e4219 | 1768 | for (int i=0; i<6; i++) |
roger5641 | 0:b2692e0e4219 | 1769 | { |
roger5641 | 0:b2692e0e4219 | 1770 | ic[current_ic].crc_count.cell_pec[i]=0; |
roger5641 | 0:b2692e0e4219 | 1771 | |
roger5641 | 0:b2692e0e4219 | 1772 | } |
roger5641 | 0:b2692e0e4219 | 1773 | for (int i=0; i<4; i++) |
roger5641 | 0:b2692e0e4219 | 1774 | { |
roger5641 | 0:b2692e0e4219 | 1775 | ic[current_ic].crc_count.aux_pec[i]=0; |
roger5641 | 0:b2692e0e4219 | 1776 | } |
roger5641 | 0:b2692e0e4219 | 1777 | for (int i=0; i<2; i++) |
roger5641 | 0:b2692e0e4219 | 1778 | { |
roger5641 | 0:b2692e0e4219 | 1779 | ic[current_ic].crc_count.stat_pec[i]=0; |
roger5641 | 0:b2692e0e4219 | 1780 | } |
roger5641 | 0:b2692e0e4219 | 1781 | } |
roger5641 | 0:b2692e0e4219 | 1782 | } |
roger5641 | 0:b2692e0e4219 | 1783 | |
roger5641 | 0:b2692e0e4219 | 1784 | //Helper function to intialize CFG variables. |
roger5641 | 0:b2692e0e4219 | 1785 | void LTC681x_init_cfg(uint8_t total_ic, cell_asic ic[]) |
roger5641 | 0:b2692e0e4219 | 1786 | { |
roger5641 | 0:b2692e0e4219 | 1787 | bool REFON = true; |
roger5641 | 0:b2692e0e4219 | 1788 | bool ADCOPT = false; |
roger5641 | 0:b2692e0e4219 | 1789 | bool gpioBits[5] = {true,true,true,true,true}; |
roger5641 | 0:b2692e0e4219 | 1790 | bool dccBits[12] = {false,false,false,false,false,false,false,false,false,false,false,false}; |
roger5641 | 0:b2692e0e4219 | 1791 | for (uint8_t current_ic = 0; current_ic<total_ic; current_ic++) |
roger5641 | 0:b2692e0e4219 | 1792 | { |
roger5641 | 0:b2692e0e4219 | 1793 | for (int j =0; j<6; j++) |
roger5641 | 0:b2692e0e4219 | 1794 | { |
roger5641 | 0:b2692e0e4219 | 1795 | ic[current_ic].config.tx_data[j] = 0; |
roger5641 | 0:b2692e0e4219 | 1796 | ic[current_ic].configb.tx_data[j] = 0; |
roger5641 | 0:b2692e0e4219 | 1797 | } |
roger5641 | 0:b2692e0e4219 | 1798 | LTC681x_set_cfgr(current_ic ,ic,REFON,ADCOPT,gpioBits,dccBits); |
roger5641 | 0:b2692e0e4219 | 1799 | |
roger5641 | 0:b2692e0e4219 | 1800 | } |
roger5641 | 0:b2692e0e4219 | 1801 | } |
roger5641 | 0:b2692e0e4219 | 1802 | |
roger5641 | 0:b2692e0e4219 | 1803 | //Helper function to set CFGR variable |
roger5641 | 0:b2692e0e4219 | 1804 | void LTC681x_set_cfgr(uint8_t nIC, cell_asic ic[], bool refon, bool adcopt, bool gpio[5],bool dcc[12]) |
roger5641 | 0:b2692e0e4219 | 1805 | { |
roger5641 | 0:b2692e0e4219 | 1806 | LTC681x_set_cfgr_refon(nIC,ic,refon); |
roger5641 | 0:b2692e0e4219 | 1807 | LTC681x_set_cfgr_adcopt(nIC,ic,adcopt); |
roger5641 | 0:b2692e0e4219 | 1808 | LTC681x_set_cfgr_gpio(nIC,ic,gpio); |
roger5641 | 0:b2692e0e4219 | 1809 | LTC681x_set_cfgr_dis(nIC,ic,dcc); |
roger5641 | 0:b2692e0e4219 | 1810 | } |
roger5641 | 0:b2692e0e4219 | 1811 | |
roger5641 | 0:b2692e0e4219 | 1812 | //Helper function to set the REFON bit |
roger5641 | 0:b2692e0e4219 | 1813 | void LTC681x_set_cfgr_refon(uint8_t nIC, cell_asic ic[], bool refon) |
roger5641 | 0:b2692e0e4219 | 1814 | { |
roger5641 | 0:b2692e0e4219 | 1815 | if (refon) ic[nIC].config.tx_data[0] = ic[nIC].config.tx_data[0]|0x04; |
roger5641 | 0:b2692e0e4219 | 1816 | else ic[nIC].config.tx_data[0] = ic[nIC].config.tx_data[0]&0xFB; |
roger5641 | 0:b2692e0e4219 | 1817 | } |
roger5641 | 0:b2692e0e4219 | 1818 | |
roger5641 | 0:b2692e0e4219 | 1819 | //Helper function to set the adcopt bit |
roger5641 | 0:b2692e0e4219 | 1820 | void LTC681x_set_cfgr_adcopt(uint8_t nIC, cell_asic ic[], bool adcopt) |
roger5641 | 0:b2692e0e4219 | 1821 | { |
roger5641 | 0:b2692e0e4219 | 1822 | if (adcopt) ic[nIC].config.tx_data[0] = ic[nIC].config.tx_data[0]|0x01; |
roger5641 | 0:b2692e0e4219 | 1823 | else ic[nIC].config.tx_data[0] = ic[nIC].config.tx_data[0]&0xFE; |
roger5641 | 0:b2692e0e4219 | 1824 | } |
roger5641 | 0:b2692e0e4219 | 1825 | |
roger5641 | 0:b2692e0e4219 | 1826 | //Helper function to set GPIO bits |
roger5641 | 0:b2692e0e4219 | 1827 | void LTC681x_set_cfgr_gpio(uint8_t nIC, cell_asic ic[],bool gpio[5]) |
roger5641 | 0:b2692e0e4219 | 1828 | { |
roger5641 | 0:b2692e0e4219 | 1829 | for (int i =0; i<5; i++) |
roger5641 | 0:b2692e0e4219 | 1830 | { |
roger5641 | 0:b2692e0e4219 | 1831 | if (gpio[i])ic[nIC].config.tx_data[0] = ic[nIC].config.tx_data[0]|(0x01<<(i+3)); |
roger5641 | 0:b2692e0e4219 | 1832 | else ic[nIC].config.tx_data[0] = ic[nIC].config.tx_data[0]&(~(0x01<<(i+3))); |
roger5641 | 0:b2692e0e4219 | 1833 | } |
roger5641 | 0:b2692e0e4219 | 1834 | } |
roger5641 | 0:b2692e0e4219 | 1835 | |
roger5641 | 0:b2692e0e4219 | 1836 | //Helper function to control discharge |
roger5641 | 0:b2692e0e4219 | 1837 | void LTC681x_set_cfgr_dis(uint8_t nIC, cell_asic ic[],bool dcc[12]) |
roger5641 | 0:b2692e0e4219 | 1838 | { |
roger5641 | 0:b2692e0e4219 | 1839 | for (int i =0; i<8; i++) |
roger5641 | 0:b2692e0e4219 | 1840 | { |
roger5641 | 0:b2692e0e4219 | 1841 | if (dcc[i])ic[nIC].config.tx_data[4] = ic[nIC].config.tx_data[4]|(0x01<<i); |
roger5641 | 0:b2692e0e4219 | 1842 | else ic[nIC].config.tx_data[4] = ic[nIC].config.tx_data[4]& (~(0x01<<i)); |
roger5641 | 0:b2692e0e4219 | 1843 | } |
roger5641 | 0:b2692e0e4219 | 1844 | for (int i =0; i<4; i++) |
roger5641 | 0:b2692e0e4219 | 1845 | { |
roger5641 | 0:b2692e0e4219 | 1846 | if (dcc[i+8])ic[nIC].config.tx_data[5] = ic[nIC].config.tx_data[5]|(0x01<<i); |
roger5641 | 0:b2692e0e4219 | 1847 | else ic[nIC].config.tx_data[5] = ic[nIC].config.tx_data[5]&(~(0x01<<i)); |
roger5641 | 0:b2692e0e4219 | 1848 | } |
roger5641 | 0:b2692e0e4219 | 1849 | } |
roger5641 | 0:b2692e0e4219 | 1850 | |
roger5641 | 0:b2692e0e4219 | 1851 | //*************************** LTC 6811 ****************************************// |
roger5641 | 0:b2692e0e4219 | 1852 | void LTC6811_init_reg_limits(uint8_t total_ic, cell_asic ic[]) |
roger5641 | 0:b2692e0e4219 | 1853 | { |
roger5641 | 0:b2692e0e4219 | 1854 | for (uint8_t cic=0; cic<total_ic; cic++) |
roger5641 | 0:b2692e0e4219 | 1855 | { |
roger5641 | 0:b2692e0e4219 | 1856 | ic[cic].ic_reg.cell_channels=12; |
roger5641 | 0:b2692e0e4219 | 1857 | ic[cic].ic_reg.stat_channels=4; |
roger5641 | 0:b2692e0e4219 | 1858 | ic[cic].ic_reg.aux_channels=6; |
roger5641 | 0:b2692e0e4219 | 1859 | ic[cic].ic_reg.num_cv_reg=4; |
roger5641 | 0:b2692e0e4219 | 1860 | ic[cic].ic_reg.num_gpio_reg=2; |
roger5641 | 0:b2692e0e4219 | 1861 | ic[cic].ic_reg.num_stat_reg=3; |
roger5641 | 0:b2692e0e4219 | 1862 | } |
roger5641 | 0:b2692e0e4219 | 1863 | } |
roger5641 | 0:b2692e0e4219 | 1864 | |
roger5641 | 0:b2692e0e4219 | 1865 | //Helper function to set discharge bit in CFG register |
roger5641 | 0:b2692e0e4219 | 1866 | void LTC6811_set_discharge(int Cell, uint8_t total_ic, cell_asic ic[]) |
roger5641 | 0:b2692e0e4219 | 1867 | { |
roger5641 | 0:b2692e0e4219 | 1868 | for (int i=0; i<total_ic; i++) |
roger5641 | 0:b2692e0e4219 | 1869 | { |
roger5641 | 0:b2692e0e4219 | 1870 | if (Cell<9) |
roger5641 | 0:b2692e0e4219 | 1871 | { |
roger5641 | 0:b2692e0e4219 | 1872 | ic[i].config.tx_data[4] = ic[i].config.tx_data[4] | (1<<(Cell-1)); |
roger5641 | 0:b2692e0e4219 | 1873 | } |
roger5641 | 0:b2692e0e4219 | 1874 | else if (Cell < 13) |
roger5641 | 0:b2692e0e4219 | 1875 | { |
roger5641 | 0:b2692e0e4219 | 1876 | ic[i].config.tx_data[5] = ic[i].config.tx_data[5] | (1<<(Cell-9)); |
roger5641 | 0:b2692e0e4219 | 1877 | } |
roger5641 | 0:b2692e0e4219 | 1878 | } |
roger5641 | 0:b2692e0e4219 | 1879 | } |
roger5641 | 0:b2692e0e4219 | 1880 | |
roger5641 | 0:b2692e0e4219 | 1881 | //****************************** SPI **************************************// |
roger5641 | 0:b2692e0e4219 | 1882 | /* |
roger5641 | 0:b2692e0e4219 | 1883 | Writes an array of bytes out of the SPI port |
roger5641 | 0:b2692e0e4219 | 1884 | */ |
roger5641 | 0:b2692e0e4219 | 1885 | void spi_write_array(uint8_t len, // Option: Number of bytes to be written on the SPI port |
roger5641 | 0:b2692e0e4219 | 1886 | uint8_t data[] //Array of bytes to be written on the SPI port |
roger5641 | 0:b2692e0e4219 | 1887 | ) |
roger5641 | 0:b2692e0e4219 | 1888 | { |
roger5641 | 0:b2692e0e4219 | 1889 | for (uint8_t i = 0; i < len; i++) |
roger5641 | 0:b2692e0e4219 | 1890 | { |
roger5641 | 0:b2692e0e4219 | 1891 | spi.write((int8_t)data[i]); |
roger5641 | 0:b2692e0e4219 | 1892 | } |
roger5641 | 0:b2692e0e4219 | 1893 | } |
roger5641 | 0:b2692e0e4219 | 1894 | |
roger5641 | 0:b2692e0e4219 | 1895 | /* |
roger5641 | 0:b2692e0e4219 | 1896 | Writes and read a set number of bytes using the SPI port. |
roger5641 | 0:b2692e0e4219 | 1897 | |
roger5641 | 0:b2692e0e4219 | 1898 | */ |
roger5641 | 0:b2692e0e4219 | 1899 | |
roger5641 | 0:b2692e0e4219 | 1900 | void spi_write_read(uint8_t tx_Data[],//array of data to be written on SPI port |
roger5641 | 0:b2692e0e4219 | 1901 | uint8_t tx_len, //length of the tx data arry |
roger5641 | 0:b2692e0e4219 | 1902 | uint8_t *rx_data,//Input: array that will store the data read by the SPI port |
roger5641 | 0:b2692e0e4219 | 1903 | uint8_t rx_len //Option: number of bytes to be read from the SPI port |
roger5641 | 0:b2692e0e4219 | 1904 | ) |
roger5641 | 0:b2692e0e4219 | 1905 | { |
roger5641 | 0:b2692e0e4219 | 1906 | for (uint8_t i = 0; i < tx_len; i++) |
roger5641 | 0:b2692e0e4219 | 1907 | { |
roger5641 | 0:b2692e0e4219 | 1908 | spi.write(tx_Data[i]); |
roger5641 | 0:b2692e0e4219 | 1909 | } |
roger5641 | 0:b2692e0e4219 | 1910 | |
roger5641 | 0:b2692e0e4219 | 1911 | for (uint8_t i = 0; i < rx_len; i++) |
roger5641 | 0:b2692e0e4219 | 1912 | { |
roger5641 | 0:b2692e0e4219 | 1913 | |
roger5641 | 0:b2692e0e4219 | 1914 | rx_data[i] = (uint8_t)spi.write(0xFF); |
roger5641 | 0:b2692e0e4219 | 1915 | } |
roger5641 | 0:b2692e0e4219 | 1916 | |
roger5641 | 0:b2692e0e4219 | 1917 | } |
roger5641 | 0:b2692e0e4219 | 1918 | |
roger5641 | 0:b2692e0e4219 | 1919 | uint8_t spi_read_byte(uint8_t tx_dat) |
roger5641 | 0:b2692e0e4219 | 1920 | { |
roger5641 | 0:b2692e0e4219 | 1921 | uint8_t data; |
roger5641 | 0:b2692e0e4219 | 1922 | data = (uint8_t)spi.write(0xFF); |
roger5641 | 0:b2692e0e4219 | 1923 | return(data); |
roger5641 | 0:b2692e0e4219 | 1924 | } |
roger5641 | 0:b2692e0e4219 | 1925 | |
roger5641 | 0:b2692e0e4219 | 1926 | //****************************** UserInterface **************************************// |
roger5641 | 0:b2692e0e4219 | 1927 | char ui_buffer[UI_BUFFER_SIZE]; |
roger5641 | 0:b2692e0e4219 | 1928 | |
roger5641 | 0:b2692e0e4219 | 1929 | // Read data from the serial interface into the ui_buffer |
roger5641 | 0:b2692e0e4219 | 1930 | uint8_t read_data() |
roger5641 | 0:b2692e0e4219 | 1931 | { |
roger5641 | 0:b2692e0e4219 | 1932 | uint8_t index = 0; //index to hold current location in ui_buffer |
roger5641 | 0:b2692e0e4219 | 1933 | int c; // single character used to store incoming keystrokes |
roger5641 | 0:b2692e0e4219 | 1934 | while (index < UI_BUFFER_SIZE-1) |
roger5641 | 0:b2692e0e4219 | 1935 | { |
roger5641 | 0:b2692e0e4219 | 1936 | c = pc.getc(); //read one character |
roger5641 | 0:b2692e0e4219 | 1937 | if (((char) c == '\r') || ((char) c == '\n')) break; // if carriage return or linefeed, stop and return data |
roger5641 | 0:b2692e0e4219 | 1938 | if ( ((char) c == '\x7F') || ((char) c == '\x08') ) // remove previous character (decrement index) if Backspace/Delete key pressed index--; |
roger5641 | 0:b2692e0e4219 | 1939 | { |
roger5641 | 0:b2692e0e4219 | 1940 | if (index > 0) index--; |
roger5641 | 0:b2692e0e4219 | 1941 | } |
roger5641 | 0:b2692e0e4219 | 1942 | else if (c >= 0) |
roger5641 | 0:b2692e0e4219 | 1943 | { |
roger5641 | 0:b2692e0e4219 | 1944 | ui_buffer[index++]=(char) c; // put character into ui_buffer |
roger5641 | 0:b2692e0e4219 | 1945 | } |
roger5641 | 0:b2692e0e4219 | 1946 | } |
roger5641 | 0:b2692e0e4219 | 1947 | ui_buffer[index]='\0'; // terminate string with NULL |
roger5641 | 0:b2692e0e4219 | 1948 | |
roger5641 | 0:b2692e0e4219 | 1949 | if ((char) c == '\r') // if the last character was a carriage return, also clear linefeed if it is next character |
roger5641 | 0:b2692e0e4219 | 1950 | { |
roger5641 | 0:b2692e0e4219 | 1951 | wait_ms(10); // allow 10ms for linefeed to appear on serial pins |
roger5641 | 0:b2692e0e4219 | 1952 | // if (pc.peek() == '\n') |
roger5641 | 0:b2692e0e4219 | 1953 | pc.getc(); // if linefeed appears, read it and throw it away |
roger5641 | 0:b2692e0e4219 | 1954 | } |
roger5641 | 0:b2692e0e4219 | 1955 | |
roger5641 | 0:b2692e0e4219 | 1956 | return index; // return number of characters, not including null terminator |
roger5641 | 0:b2692e0e4219 | 1957 | } |
roger5641 | 0:b2692e0e4219 | 1958 | |
roger5641 | 0:b2692e0e4219 | 1959 | // Read an integer from the serial interface. |
roger5641 | 0:b2692e0e4219 | 1960 | // The routine can recognize Hex, Decimal, Octal, or Binary |
roger5641 | 0:b2692e0e4219 | 1961 | // Example: |
roger5641 | 0:b2692e0e4219 | 1962 | // Hex: 0x11 (0x prefix) |
roger5641 | 0:b2692e0e4219 | 1963 | // Decimal: 17 |
roger5641 | 0:b2692e0e4219 | 1964 | // Octal: 021 (leading zero prefix) |
roger5641 | 0:b2692e0e4219 | 1965 | // Binary: B10001 (leading B prefix) |
roger5641 | 0:b2692e0e4219 | 1966 | int32_t read_int() |
roger5641 | 0:b2692e0e4219 | 1967 | { |
roger5641 | 0:b2692e0e4219 | 1968 | int32_t data; |
roger5641 | 0:b2692e0e4219 | 1969 | read_data(); |
roger5641 | 0:b2692e0e4219 | 1970 | if (ui_buffer[0] == 'm') |
roger5641 | 0:b2692e0e4219 | 1971 | return('m'); |
roger5641 | 0:b2692e0e4219 | 1972 | if ((ui_buffer[0] == 'B') || (ui_buffer[0] == 'b')) |
roger5641 | 0:b2692e0e4219 | 1973 | { |
roger5641 | 0:b2692e0e4219 | 1974 | data = strtol(ui_buffer+1, NULL, 2); |
roger5641 | 0:b2692e0e4219 | 1975 | } |
roger5641 | 0:b2692e0e4219 | 1976 | else |
roger5641 | 0:b2692e0e4219 | 1977 | data = strtol(ui_buffer, NULL, 0); |
roger5641 | 0:b2692e0e4219 | 1978 | return(data); |
roger5641 | 0:b2692e0e4219 | 1979 | } |
roger5641 | 0:b2692e0e4219 | 1980 | |
roger5641 | 0:b2692e0e4219 | 1981 | // Read a character from the serial interface |
roger5641 | 0:b2692e0e4219 | 1982 | int8_t read_char() |
roger5641 | 0:b2692e0e4219 | 1983 | { |
roger5641 | 0:b2692e0e4219 | 1984 | read_data(); |
roger5641 | 0:b2692e0e4219 | 1985 | return(ui_buffer[0]); |
roger5641 | 0:b2692e0e4219 | 1986 | } |
roger5641 | 0:b2692e0e4219 | 1987 |