Dmitry Kovalev / Mbed 2 deprecated LG2

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Dependencies:   mbed

Fork of LG by igor Apu

InputOutput.c@21:bc8c1cec3da6, 2016-02-03 (annotated)

Committer:
igor_v
Date:
Wed Feb 03 07:19:30 2016 +0000
Revision:
21:bc8c1cec3da6
Parent:
2:2d0b80ed9216
Child:
88:b5c1d9d338d1
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Who changed what in which revision?

UserRevisionLine numberNew contents of line
igor_v 1:f2adcae3d304 1 #include "Global.h"
igor_v 2:2d0b80ed9216 2 INPUT Input;
igor_v 2:2d0b80ed9216 3 OUTPUT Output;
igor_v 0:8ad47e2b6f00 4
igor_v 0:8ad47e2b6f00 5 volatile uint32_t I2CMasterState = I2C_IDLE;
igor_v 0:8ad47e2b6f00 6 volatile uint32_t I2CMasterBuffer[I2C_WRITELENGTH];
igor_v 0:8ad47e2b6f00 7
igor_v 21:bc8c1cec3da6 8 int ExchangeErr = 0;
igor_v 0:8ad47e2b6f00 9 //----------------------temp---------------------
igor_v 0:8ad47e2b6f00 10 extern char test;
igor_v 0:8ad47e2b6f00 11 /******************************************************************************
igor_v 0:8ad47e2b6f00 12 ** Function name: G_Photo_Exchange
igor_v 0:8ad47e2b6f00 13 **
igor_v 21:bc8c1cec3da6 14 ** Descriptions: Driver for I2C exchange
igor_v 0:8ad47e2b6f00 15 **
igor_v 0:8ad47e2b6f00 16 ** parameters: None
igor_v 0:8ad47e2b6f00 17 ** Returned value: None
igor_v 21:bc8c1cec3da6 18 **
igor_v 0:8ad47e2b6f00 19 ******************************************************************************/
igor_v 0:8ad47e2b6f00 20
igor_v 21:bc8c1cec3da6 21 void G_Photo_Exchange(void)
igor_v 0:8ad47e2b6f00 22 {
igor_v 21:bc8c1cec3da6 23 uint32_t StatValue;
igor_v 21:bc8c1cec3da6 24 static uint32_t WrIndex;
igor_v 21:bc8c1cec3da6 25 static int32_t time_out = TIMEOUT;
igor_v 0:8ad47e2b6f00 26
igor_v 21:bc8c1cec3da6 27 if (I2CMasterState)
igor_v 21:bc8c1cec3da6 28 return; //e.transmitting is not active, go away
igor_v 0:8ad47e2b6f00 29
igor_v 21:bc8c1cec3da6 30 if (--time_out < 0) //e. valid time period elapsed, go away
igor_v 21:bc8c1cec3da6 31 {
igor_v 21:bc8c1cec3da6 32 time_out = TIMEOUT;
igor_v 21:bc8c1cec3da6 33 I2CMasterState = I2C_IDLE; //e. timer elapsed, go away
igor_v 21:bc8c1cec3da6 34 LPC_I2C0->CONSET = I2CONSET_STO; //e. Set Stop flag
igor_v 21:bc8c1cec3da6 35 LPC_I2C0->CONCLR = I2CONCLR_AAC | I2CONCLR_SIC | I2CONCLR_STAC;
igor_v 21:bc8c1cec3da6 36 return;
igor_v 21:bc8c1cec3da6 37 }
igor_v 21:bc8c1cec3da6 38 else if (!(LPC_I2C0->CONSET & I2CONSET_SI)) //e. state of I2C bus has not been changed
igor_v 21:bc8c1cec3da6 39 return;
igor_v 0:8ad47e2b6f00 40
igor_v 21:bc8c1cec3da6 41 StatValue = LPC_I2C0->STAT;
igor_v 0:8ad47e2b6f00 42
igor_v 21:bc8c1cec3da6 43 switch ( StatValue )
igor_v 21:bc8c1cec3da6 44 {
igor_v 21:bc8c1cec3da6 45 case 0x08: // A Start condition is issued (write data for the first potentiometer)
igor_v 21:bc8c1cec3da6 46 WrIndex = 0;
igor_v 21:bc8c1cec3da6 47 time_out = TIMEOUT; //e. enable countdown
igor_v 21:bc8c1cec3da6 48 LPC_I2C0->DAT = I2CMasterBuffer[WrIndex++]; //e. send address
igor_v 21:bc8c1cec3da6 49 LPC_I2C0->CONCLR = (I2CONCLR_SIC | I2CONCLR_STAC); //e .clear interrupt bit and start bit
igor_v 21:bc8c1cec3da6 50 break;
igor_v 21:bc8c1cec3da6 51
igor_v 21:bc8c1cec3da6 52 case 0x10: // A repeated started is issued (write data for the second potentiometer)
igor_v 21:bc8c1cec3da6 53 LPC_I2C0->DAT = I2CMasterBuffer[WrIndex++]; //e. send address
igor_v 21:bc8c1cec3da6 54 LPC_I2C0->CONCLR = (I2CONCLR_SIC | I2CONCLR_STAC); //e .clear interrupt bit and start bit
igor_v 21:bc8c1cec3da6 55 break;
igor_v 0:8ad47e2b6f00 56
igor_v 21:bc8c1cec3da6 57 case 0x18: //e. Regardless, it's a ACK after slave address reading
igor_v 21:bc8c1cec3da6 58 LPC_I2C0->DAT = I2CMasterBuffer[WrIndex++]; //e. send another byte
igor_v 21:bc8c1cec3da6 59 LPC_I2C0->CONCLR = I2CONCLR_SIC; //e. clear interrupt bit
igor_v 21:bc8c1cec3da6 60 break;
igor_v 0:8ad47e2b6f00 61
igor_v 21:bc8c1cec3da6 62 case 0x28: //e. Regardless it's a ACK after data byte
igor_v 21:bc8c1cec3da6 63 if (WrIndex == I2C_WRITELENGTH) //e. we have transmitted the data for the B potentiometer
igor_v 21:bc8c1cec3da6 64 {
igor_v 21:bc8c1cec3da6 65 I2CMasterState = I2C_IDLE;
igor_v 21:bc8c1cec3da6 66 LPC_I2C0->CONSET = I2CONSET_STO; //e. Set Stop flag
igor_v 21:bc8c1cec3da6 67 Output.Str.Cnt_Dif = 300;
igor_v 21:bc8c1cec3da6 68 }
igor_v 21:bc8c1cec3da6 69 else if (WrIndex == 3)
igor_v 21:bc8c1cec3da6 70 {
igor_v 21:bc8c1cec3da6 71 LPC_I2C0->CONSET = I2CONSET_STA;
igor_v 21:bc8c1cec3da6 72 Output.Str.Cnt_Dif = 200;
igor_v 21:bc8c1cec3da6 73 }
igor_v 21:bc8c1cec3da6 74 else
igor_v 21:bc8c1cec3da6 75 {
igor_v 21:bc8c1cec3da6 76 LPC_I2C0->DAT = I2CMasterBuffer[WrIndex++]; //e. send another byte
igor_v 21:bc8c1cec3da6 77 Output.Str.Cnt_Dif = 100;
igor_v 21:bc8c1cec3da6 78 }
igor_v 21:bc8c1cec3da6 79 LPC_I2C0->CONCLR = I2CONCLR_SIC; //e. clear interrupt bit
igor_v 21:bc8c1cec3da6 80 break;
igor_v 0:8ad47e2b6f00 81
igor_v 21:bc8c1cec3da6 82 case 0x20: //e. no aknowledgement after address transmitting
igor_v 21:bc8c1cec3da6 83 case 0x30: //e. no aknowledgement after data block transmitting
igor_v 21:bc8c1cec3da6 84 LPC_I2C0->CONSET = I2CONSET_STO; //e. Set Stop flag
igor_v 21:bc8c1cec3da6 85 LPC_I2C0->CONCLR = (I2CONCLR_SIC | I2CONCLR_STAC);
igor_v 21:bc8c1cec3da6 86 I2CMasterState = I2C_IDLE; //e. fix new state
igor_v 21:bc8c1cec3da6 87 break;
igor_v 21:bc8c1cec3da6 88 }
igor_v 21:bc8c1cec3da6 89 return;
igor_v 0:8ad47e2b6f00 90 }
igor_v 0:8ad47e2b6f00 91 /******************************************************************************
igor_v 0:8ad47e2b6f00 92 ** Function name: DAC_ADC_Exchange
igor_v 0:8ad47e2b6f00 93 **
igor_v 21:bc8c1cec3da6 94 ** Descriptions: Loading data to DACs and initialization of ADC reading
igor_v 0:8ad47e2b6f00 95 **
igor_v 0:8ad47e2b6f00 96 ** parameters: None
igor_v 0:8ad47e2b6f00 97 ** Returned value: None
igor_v 21:bc8c1cec3da6 98 **
igor_v 0:8ad47e2b6f00 99 ******************************************************************************/
igor_v 0:8ad47e2b6f00 100 void DAC_ADC_Exchange()
igor_v 0:8ad47e2b6f00 101 {
igor_v 21:bc8c1cec3da6 102 //-------------------------loading data from ADC to buffer---------------------------------------
igor_v 0:8ad47e2b6f00 103 //int x;
igor_v 21:bc8c1cec3da6 104 ExchangeErr &= ~ADC_ERR_MSK; //e. сбросить флаг ошибки
igor_v 21:bc8c1cec3da6 105 if (LPC_SSP0->SR & SSP_BUSY) //e. если буфер передатчика не полон
igor_v 21:bc8c1cec3da6 106 {
igor_v 21:bc8c1cec3da6 107 ExchangeErr |= ADC_ERR_MSK; //e. установить флаг ошибки
igor_v 21:bc8c1cec3da6 108 }
igor_v 21:bc8c1cec3da6 109 else
igor_v 21:bc8c1cec3da6 110 {
igor_v 21:bc8c1cec3da6 111 LPC_SSP0->DR = 0x8001; //записать 0x8001 в регистр передачи.
igor_v 21:bc8c1cec3da6 112 if (Sys_Clock & 1)//если нечетный такт то
igor_v 21:bc8c1cec3da6 113 {
igor_v 21:bc8c1cec3da6 114 LPC_SSP0->DR = WRITE_DAC0; //e.команда для ЦАП_0 передавать.
igor_v 21:bc8c1cec3da6 115 LPC_SSP0->DR = (-Output.ArrayOut[3]+32767); //e. передача 12 бит
igor_v 21:bc8c1cec3da6 116 }
igor_v 21:bc8c1cec3da6 117 else //если такт четный.
igor_v 21:bc8c1cec3da6 118 {
igor_v 21:bc8c1cec3da6 119 LPC_SSP0->DR = WRITE_DAC1 ; //e.команда для ЦАП_1 передавать.
igor_v 21:bc8c1cec3da6 120 LPC_SSP0->DR = (Output.ArrayOut[0]<<1) & 0xFFF0; //e. передача 12 бит
igor_v 21:bc8c1cec3da6 121 }
igor_v 0:8ad47e2b6f00 122 }
igor_v 0:8ad47e2b6f00 123 }
igor_v 0:8ad47e2b6f00 124 /******************************************************************************
igor_v 0:8ad47e2b6f00 125 ** Function name: ADC_Input
igor_v 0:8ad47e2b6f00 126 **
igor_v 21:bc8c1cec3da6 127 ** Descriptions: Reading data from ADC
igor_v 0:8ad47e2b6f00 128 **
igor_v 0:8ad47e2b6f00 129 ** parameters: None
igor_v 0:8ad47e2b6f00 130 ** Returned value: None
igor_v 21:bc8c1cec3da6 131 **
igor_v 0:8ad47e2b6f00 132 ******************************************************************************/
igor_v 0:8ad47e2b6f00 133 void ADC_Input()
igor_v 21:bc8c1cec3da6 134 {
igor_v 21:bc8c1cec3da6 135 uint32_t Dummy;
igor_v 0:8ad47e2b6f00 136
igor_v 21:bc8c1cec3da6 137 //---------------------read data from ADC buffer---------------------------------------------
igor_v 21:bc8c1cec3da6 138 Dummy = Dummy;
igor_v 21:bc8c1cec3da6 139 ExchangeErr &= ~ADC_ERR_MSK;
igor_v 0:8ad47e2b6f00 140
igor_v 21:bc8c1cec3da6 141 if (LPC_SSP0->SR & SSP_BUSY) //если буфер фифо не полный(передача ативна)
igor_v 21:bc8c1cec3da6 142 { ExchangeErr |= ADC_ERR_MSK; //установить флаг ошибки
igor_v 21:bc8c1cec3da6 143
igor_v 21:bc8c1cec3da6 144 if (!(LPC_SSP0->SR & TX_SSP_EMPT)) //буфер передачи не пуст.
igor_v 21:bc8c1cec3da6 145 ExchangeErr |= ADC_ERR_MSK; //установить флаг ошибки
igor_v 21:bc8c1cec3da6 146 }
igor_v 21:bc8c1cec3da6 147 else //обмен закончен прочитать буфер.
igor_v 21:bc8c1cec3da6 148 {
igor_v 21:bc8c1cec3da6 149 Input.ArrayIn[0] = LPC_SSP0->DR; //чтениеThermo2
igor_v 21:bc8c1cec3da6 150 Input.ArrayIn[1] = LPC_SSP0->DR; //чтение Thermo1
igor_v 21:bc8c1cec3da6 151 Input.ArrayIn[2] = LPC_SSP0->DR; //чтение HF_out
igor_v 0:8ad47e2b6f00 152
igor_v 21:bc8c1cec3da6 153 while (LPC_SSP0->SR & RX_SSP_notEMPT) //если буфер SPI не пуст.
igor_v 21:bc8c1cec3da6 154 Dummy = LPC_SSP0->DR; //очистить буфер.
igor_v 21:bc8c1cec3da6 155 }
igor_v 21:bc8c1cec3da6 156
igor_v 0:8ad47e2b6f00 157
igor_v 0:8ad47e2b6f00 158 }
igor_v 0:8ad47e2b6f00 159 /*****************************************************************************
igor_v 0:8ad47e2b6f00 160 ** Function name: DAC_Output
igor_v 0:8ad47e2b6f00 161 **
igor_v 0:8ad47e2b6f00 162 ** Descriptions: Output data to intrnal DAC
igor_v 0:8ad47e2b6f00 163 **
igor_v 0:8ad47e2b6f00 164 ** parameters: output - code for output
igor_v 0:8ad47e2b6f00 165 ** Returned value: None
igor_v 21:bc8c1cec3da6 166 **
igor_v 0:8ad47e2b6f00 167 *****************************************************************************/
igor_v 0:8ad47e2b6f00 168 void DAC_Output(int output)
igor_v 0:8ad47e2b6f00 169 {
igor_v 21:bc8c1cec3da6 170 // LPC_DAC->CR = (output<<6);
igor_v 21:bc8c1cec3da6 171 return;
igor_v 0:8ad47e2b6f00 172 }
igor_v 0:8ad47e2b6f00 173 /******************************************************************************
igor_v 0:8ad47e2b6f00 174 ** Function name: G_Photo_Init
igor_v 0:8ad47e2b6f00 175 **
igor_v 0:8ad47e2b6f00 176 ** Descriptions: Initialization of exchange with digital potentiometers
igor_v 0:8ad47e2b6f00 177 **
igor_v 0:8ad47e2b6f00 178 ** parameters: None
igor_v 0:8ad47e2b6f00 179 ** Returned value: None
igor_v 21:bc8c1cec3da6 180 **
igor_v 0:8ad47e2b6f00 181 ******************************************************************************/
igor_v 21:bc8c1cec3da6 182 void G_Photo_Init(void )
igor_v 0:8ad47e2b6f00 183 {
igor_v 21:bc8c1cec3da6 184 LPC_SC->PCONP |= (1 << 19);//включение интерфейса I2C.
igor_v 0:8ad47e2b6f00 185
igor_v 21:bc8c1cec3da6 186 /* set PIO0.27 and PIO0.28 to I2C0 SDA and SCK */
igor_v 21:bc8c1cec3da6 187 /* function to 01 on both SDA and SCK. */
igor_v 21:bc8c1cec3da6 188 LPC_PINCON->PINSEL1 &= ~0x03C00000; //P0.27 - SDA.
igor_v 21:bc8c1cec3da6 189 LPC_PINCON->PINSEL1 |= 0x01400000; //P0.28 - SCK.
igor_v 0:8ad47e2b6f00 190
igor_v 21:bc8c1cec3da6 191 // подтверждение Флаг флаг разрешения
igor_v 21:bc8c1cec3da6 192 /*сброс флагоф флага прерывания I2C старта интерфейса I2C */
igor_v 21:bc8c1cec3da6 193 LPC_I2C0->CONCLR = I2CONCLR_AAC | I2CONCLR_SIC | I2CONCLR_STAC | I2CONCLR_I2ENC; // установка микроконтроллера в режим мастера
igor_v 0:8ad47e2b6f00 194
igor_v 21:bc8c1cec3da6 195 /*--- Reset registers ---*/
igor_v 21:bc8c1cec3da6 196 LPC_I2C0->SCLL = I2SCLL_SCLL; // - счетчик scl low time period
igor_v 21:bc8c1cec3da6 197 LPC_I2C0->SCLH = I2SCLH_SCLH; // - счетчик scl high time period
igor_v 0:8ad47e2b6f00 198
igor_v 21:bc8c1cec3da6 199 I2CMasterBuffer[0] = A_ADDRESS; //арес потенциометра канала А
igor_v 21:bc8c1cec3da6 200 I2CMasterBuffer[1] = WRITE_CMD; //Данные
igor_v 21:bc8c1cec3da6 201 I2CMasterBuffer[3] = B_ADDRESS; //арес потенциометра канала В
igor_v 21:bc8c1cec3da6 202 I2CMasterBuffer[4] = WRITE_CMD; //Данные
igor_v 0:8ad47e2b6f00 203
igor_v 21:bc8c1cec3da6 204 LPC_I2C0->CONSET = I2CONSET_I2EN; //включение интерфейса I2C.
igor_v 0:8ad47e2b6f00 205
igor_v 0:8ad47e2b6f00 206 }
igor_v 0:8ad47e2b6f00 207 /******************************************************************************
igor_v 0:8ad47e2b6f00 208 ** Function name: DAC_ADC_Exchange_Init
igor_v 0:8ad47e2b6f00 209 **
igor_v 0:8ad47e2b6f00 210 ** Descriptions: Initialization of data exchange with DACs and ADCs
igor_v 0:8ad47e2b6f00 211 **
igor_v 0:8ad47e2b6f00 212 ** parameters: None
igor_v 0:8ad47e2b6f00 213 ** Returned value: None
igor_v 21:bc8c1cec3da6 214 **
igor_v 0:8ad47e2b6f00 215 ******************************************************************************/
igor_v 0:8ad47e2b6f00 216 void DAC_ADC_Exchange_Init()
igor_v 0:8ad47e2b6f00 217 {
igor_v 21:bc8c1cec3da6 218
igor_v 21:bc8c1cec3da6 219 int Dummy; // инициализация мусорки для очистки буфера приема.
igor_v 21:bc8c1cec3da6 220 Dummy = Dummy;
igor_v 0:8ad47e2b6f00 221
igor_v 21:bc8c1cec3da6 222 /* Enable AHB clock to the SSP0, SSP1 */
igor_v 21:bc8c1cec3da6 223 LPC_SC->PCONP |= (0x1<<21); // включение SSP0.
igor_v 0:8ad47e2b6f00 224 // LPC_SC->PCONP |= (0x1<<10);
igor_v 0:8ad47e2b6f00 225
igor_v 21:bc8c1cec3da6 226 /* выбор частоты для переферии используем по умолчания с делителем основной на 4 */
igor_v 21:bc8c1cec3da6 227 LPC_SC->PCLKSEL1 &= ~(0x3<<10); //00 CLK/4; 1 CLK; 2 CLK/2; 3 CLK/8
igor_v 21:bc8c1cec3da6 228 LPC_SC->PCLKSEL1 |= (0x0<<10); //00 CLK/4; 1 CLK; 2 CLK/2; 3 CLK/8
igor_v 21:bc8c1cec3da6 229 // LPC_SC->PCLKSEL0 &= ~(0x3<<20);
igor_v 0:8ad47e2b6f00 230
igor_v 21:bc8c1cec3da6 231 // P0.15~0.18 as SSP0
igor_v 21:bc8c1cec3da6 232 LPC_PINCON->PINSEL0 &= ~(0x3UL<<30); //установит Р 0.15
igor_v 21:bc8c1cec3da6 233 LPC_PINCON->PINSEL0 |= (0x2UL<<30); //как (???? SCK 0 ???). частота для синхронизациии Master - slave
igor_v 0:8ad47e2b6f00 234
igor_v 21:bc8c1cec3da6 235 LPC_PINCON->PINSEL1 &= ~((0x3<<0)|(0x3<<2)|(0x3<<4)); // устанивоить Р 0.17 и Р 0.18
igor_v 21:bc8c1cec3da6 236 LPC_PINCON->PINSEL1 |= ((0x2<<2)|(0x2<<4)); // как MISO0 и MOSI0
igor_v 0:8ad47e2b6f00 237
igor_v 21:bc8c1cec3da6 238 LPC_PINCON->PINMODE0 &= ~(0x3UL<<30);// ? установление на Р 0.15 режима On-Chip pull-down resistor enabled
igor_v 21:bc8c1cec3da6 239 LPC_PINCON->PINMODE0 |= (0x3UL<<30);// ? установление на Р 0.15 режима On-Chip pull-down resistor enabled
igor_v 0:8ad47e2b6f00 240
igor_v 21:bc8c1cec3da6 241 LPC_PINCON->PINMODE1 &= ~((0x3<<2)|(0x3<<4));// ? установление на Р 0.17 и Р 0.18 режима On-Chip pull-down resistor enabled
igor_v 21:bc8c1cec3da6 242 LPC_PINCON->PINMODE1 |= ((0x3<<2)|(0x3<<4));// ? установление на Р 0.17 и Р 0.18 режима On-Chip pull-down resistor enabled
igor_v 0:8ad47e2b6f00 243
igor_v 21:bc8c1cec3da6 244 /* P0.6~0.9 as SSP1 */
igor_v 21:bc8c1cec3da6 245 /* LPC_PINCON->PINSEL0 &= ~((0x3<<12)|(0x3<<14)|(0x3<<16)|(0x3<<18));
igor_v 21:bc8c1cec3da6 246 LPC_PINCON->PINSEL0 |= ((0x2<<12)|(0x2<<14)|(0x2<<16)|(0x2<<18));
igor_v 21:bc8c1cec3da6 247 LPC_PINCON->PINMODE0 &= ~((0x3<<16)|(0x3<<12)|(0x3<<14)|(0x3<<18));
igor_v 21:bc8c1cec3da6 248 LPC_PINCON->PINMODE0 |= ((0x3<<16)|(0x3<<14)|(0x3<<18)); */
igor_v 0:8ad47e2b6f00 249
igor_v 21:bc8c1cec3da6 250 /* Set DSS data to 16-bit, Frame format TI, SCR is 2 */
igor_v 21:bc8c1cec3da6 251 LPC_SSP0->CR0 = ((3<<8)|(0<<7)|(0<<4) |0xF); // (0xF)-установление DSS(Data sise select) в 16-битный формат, (3<<8 scr - выбор частоты),
igor_v 21:bc8c1cec3da6 252 // низкий уровень линии тактирования между кадрами, прикрепление передачи к первому нарастанию тактового мигнала
igor_v 21:bc8c1cec3da6 253 // формат кадра TI.
igor_v 21:bc8c1cec3da6 254 // LPC_SSP1->CR0 = 0x0207;
igor_v 0:8ad47e2b6f00 255
igor_v 21:bc8c1cec3da6 256 /* SSPCPSR clock prescale register, master mode, minimum divisor is 0x02 */
igor_v 21:bc8c1cec3da6 257 LPC_SSP0->CPSR = 0x2; // freq = CLK/(cpsdvr*(scr+1)) = 1.6 MHz
igor_v 21:bc8c1cec3da6 258 // LPC_SSP1->CPSR = 0x2;
igor_v 0:8ad47e2b6f00 259
igor_v 21:bc8c1cec3da6 260 /*SSP enable, master mode */
igor_v 21:bc8c1cec3da6 261 LPC_SSP0->CR1 = SSPCR1_SSE;
igor_v 0:8ad47e2b6f00 262 // LPC_SSP1->CR1 = SSPCR1_SSE;
igor_v 0:8ad47e2b6f00 263
igor_v 21:bc8c1cec3da6 264 while (LPC_SSP0->SR & SSP_BUSY);
igor_v 0:8ad47e2b6f00 265 // while (LPC_SSP1->SR & SSP_BUSY);
igor_v 0:8ad47e2b6f00 266
igor_v 21:bc8c1cec3da6 267 while (LPC_SSP0->SR & RX_SSP_notEMPT) /* clear the RxFIFO */
igor_v 21:bc8c1cec3da6 268 Dummy = LPC_SSP0->DR;
igor_v 21:bc8c1cec3da6 269 //all pins after reset is in GPIO mode, so CS pins needn't to configure
igor_v 21:bc8c1cec3da6 270 LPC_GPIO0->FIODIR |= ADC; // P0.16 defined as CS for ADC
igor_v 21:bc8c1cec3da6 271 LPC_GPIO0->FIOSET |= ADC; // set CS for ADC
igor_v 0:8ad47e2b6f00 272
igor_v 21:bc8c1cec3da6 273 LPC_GPIO0->FIODIR |= DAC; // P defined as CS for DAC
igor_v 21:bc8c1cec3da6 274 LPC_GPIO0->FIOCLR |= DAC; // set CS for DAC
igor_v 21:bc8c1cec3da6 275 /* while (LPC_SSP1->SR & RX_SSP_notEMPT)
igor_v 21:bc8c1cec3da6 276 Dummy = LPC_SSP1->DR;*/ /* clear the RxFIFO */
igor_v 0:8ad47e2b6f00 277 }
igor_v 0:8ad47e2b6f00 278 /*****************************************************************************
igor_v 0:8ad47e2b6f00 279 ** Function name: DACInit
igor_v 0:8ad47e2b6f00 280 **
igor_v 0:8ad47e2b6f00 281 ** Descriptions: initialize DAC channel
igor_v 0:8ad47e2b6f00 282 **
igor_v 0:8ad47e2b6f00 283 ** parameters: None
igor_v 0:8ad47e2b6f00 284 ** Returned value: None
igor_v 21:bc8c1cec3da6 285 **
igor_v 0:8ad47e2b6f00 286 *****************************************************************************/
igor_v 0:8ad47e2b6f00 287 void DACInit( void )
igor_v 0:8ad47e2b6f00 288 {
igor_v 21:bc8c1cec3da6 289 /* setup the related pin to DAC output */
igor_v 21:bc8c1cec3da6 290 LPC_PINCON->PINSEL1 |= 0x00200000; /* установить p0.26 как выход ЦАП */
igor_v 21:bc8c1cec3da6 291 // LPC_GPIO0->FIODIR |= (1<<26);
igor_v 21:bc8c1cec3da6 292 LPC_DAC->CNTVAL = 0; // ккаието параметры
igor_v 21:bc8c1cec3da6 293 LPC_DAC->CTRL = 0; // для ДМА
igor_v 21:bc8c1cec3da6 294 return;
igor_v 0:8ad47e2b6f00 295 }
igor_v 0:8ad47e2b6f00 296 /******************************************************************************
igor_v 0:8ad47e2b6f00 297 ** Function name: Out_G_photo
igor_v 0:8ad47e2b6f00 298 **
igor_v 0:8ad47e2b6f00 299 ** Descriptions: Start of potentiometer data writing process
igor_v 0:8ad47e2b6f00 300 **
igor_v 0:8ad47e2b6f00 301 ** parameters: pointer to gain factors
igor_v 0:8ad47e2b6f00 302 ** Returned value: None
igor_v 21:bc8c1cec3da6 303 **
igor_v 0:8ad47e2b6f00 304 ******************************************************************************/
igor_v 0:8ad47e2b6f00 305 void Out_G_photo(uint32_t Ph_A, uint32_t Ph_B)
igor_v 0:8ad47e2b6f00 306 {
igor_v 21:bc8c1cec3da6 307 I2CMasterBuffer[2] = Ph_A;// запись в буфер I2C мастера данных с А канала фото датчика.(уточнить)
igor_v 21:bc8c1cec3da6 308 I2CMasterBuffer[5] = Ph_B;// запись в буфер I2C мастера данных с В канала фото датчика.(уточнить)
igor_v 0:8ad47e2b6f00 309
igor_v 21:bc8c1cec3da6 310 LPC_I2C0->CONSET = I2CONSET_STA; // установить старт флаг.
igor_v 21:bc8c1cec3da6 311 I2CMasterState = I2C_BUSY; // установить флаг занятой шины.
igor_v 21:bc8c1cec3da6 312 }
igor_v 0:8ad47e2b6f00 313