Andy A / DW1000

DW1000 UWB driver based on work of Matthias Grob & Manuel Stalder - ETH Zürich - 2015

Dependencies:   BurstSPI

DW1000.h@2:ebbb05cbc417, 2016-04-05 (annotated)

Committer:
AndyA
Date:
Tue Apr 05 10:53:36 2016 +0000
Revision:
2:ebbb05cbc417
Parent:
0:bddb8cd5e7df
Child:
5:68ffaa5962d1
a

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AndyA 0:bddb8cd5e7df 1 // by Matthias Grob & Manuel Stalder - ETH Zürich - 2015
AndyA 0:bddb8cd5e7df 2
AndyA 0:bddb8cd5e7df 3 #ifndef DW1000_H
AndyA 0:bddb8cd5e7df 4 #define DW1000_H
AndyA 0:bddb8cd5e7df 5
AndyA 0:bddb8cd5e7df 6 #include "mbed.h"
AndyA 0:bddb8cd5e7df 7
AndyA 0:bddb8cd5e7df 8 // register addresses
AndyA 0:bddb8cd5e7df 9 // Mnemonic Address Bytes Description
AndyA 0:bddb8cd5e7df 10 #define DW1000_DEV_ID 0x00 // 4 Device Identifier – includes device type and revision information
AndyA 0:bddb8cd5e7df 11 #define DW1000_EUI 0x01 // 8 Extended Unique Identifier
AndyA 0:bddb8cd5e7df 12 #define DW1000_PANADR 0x03 // 4 PAN Identifier and Short Address
AndyA 0:bddb8cd5e7df 13 #define DW1000_SYS_CFG 0x04 // 4 System Configuration bitmap
AndyA 0:bddb8cd5e7df 14 #define DW1000_SYS_TIME 0x06 // 5 System Time Counter (40-bit)
AndyA 0:bddb8cd5e7df 15 #define DW1000_TX_FCTRL 0x08 // 5 Transmit Frame Control
AndyA 0:bddb8cd5e7df 16 #define DW1000_TX_BUFFER 0x09 // 1024 Transmit Data Buffer
AndyA 0:bddb8cd5e7df 17 #define DW1000_DX_TIME 0x0A // 5 Delayed Send or Receive Time (40-bit)
AndyA 0:bddb8cd5e7df 18 #define DW1000_RX_FWTO 0x0C // 2 Receive Frame Wait Timeout Period
AndyA 0:bddb8cd5e7df 19 #define DW1000_SYS_CTRL 0x0D // 4 System Control Register
AndyA 0:bddb8cd5e7df 20 #define DW1000_SYS_MASK 0x0E // 4 System Event Mask Register
AndyA 0:bddb8cd5e7df 21 #define DW1000_SYS_STATUS 0x0F // 5 System Event Status Register
AndyA 0:bddb8cd5e7df 22 #define DW1000_RX_FINFO 0x10 // 4 RX Frame Information (in double buffer set)
AndyA 0:bddb8cd5e7df 23 #define DW1000_RX_BUFFER 0x11 // 1024 Receive Data Buffer (in double buffer set)
AndyA 0:bddb8cd5e7df 24 #define DW1000_RX_FQUAL 0x12 // 8 Rx Frame Quality information (in double buffer set)
AndyA 0:bddb8cd5e7df 25 #define DW1000_RX_TTCKI 0x13 // 4 Receiver Time Tracking Interval (in double buffer set)
AndyA 0:bddb8cd5e7df 26 #define DW1000_RX_TTCKO 0x14 // 5 Receiver Time Tracking Offset (in double buffer set)
AndyA 0:bddb8cd5e7df 27 #define DW1000_RX_TIME 0x15 // 14 Receive Message Time of Arrival (in double buffer set)
AndyA 0:bddb8cd5e7df 28 #define DW1000_TX_TIME 0x17 // 10 Transmit Message Time of Sending (in double buffer set)
AndyA 0:bddb8cd5e7df 29 #define DW1000_TX_ANTD 0x18 // 2 16-bit Delay from Transmit to Antenna
AndyA 0:bddb8cd5e7df 30 #define DW1000_SYS_STATE 0x19 // 5 System State information
AndyA 0:bddb8cd5e7df 31 #define DW1000_ACK_RESP_T 0x1A // 4 Acknowledgement Time and Response Time
AndyA 0:bddb8cd5e7df 32 #define DW1000_RX_SNIFF 0x1D // 4 Pulsed Preamble Reception Configuration
AndyA 0:bddb8cd5e7df 33 #define DW1000_TX_POWER 0x1E // 4 TX Power Control
AndyA 0:bddb8cd5e7df 34 #define DW1000_CHAN_CTRL 0x1F // 4 Channel Control
AndyA 0:bddb8cd5e7df 35 #define DW1000_USR_SFD 0x21 // 41 User-specified short/long TX/RX SFD sequences
AndyA 0:bddb8cd5e7df 36 #define DW1000_AGC_CTRL 0x23 // 32 Automatic Gain Control configuration
AndyA 0:bddb8cd5e7df 37 #define DW1000_EXT_SYNC 0x24 // 12 External synchronisation control.
AndyA 0:bddb8cd5e7df 38 #define DW1000_ACC_MEM 0x25 // 4064 Read access to accumulator data
AndyA 0:bddb8cd5e7df 39 #define DW1000_GPIO_CTRL 0x26 // 44 Peripheral register bus 1 access - GPIO control
AndyA 0:bddb8cd5e7df 40 #define DW1000_DRX_CONF 0x27 // 44 Digital Receiver configuration
AndyA 0:bddb8cd5e7df 41 #define DW1000_RF_CONF 0x28 // 58 Analog RF Configuration
AndyA 0:bddb8cd5e7df 42 #define DW1000_TX_CAL 0x2A // 52 Transmitter calibration block
AndyA 0:bddb8cd5e7df 43 #define DW1000_FS_CTRL 0x2B // 21 Frequency synthesiser control block
AndyA 0:bddb8cd5e7df 44 #define DW1000_AON 0x2C // 12 Always-On register set
AndyA 0:bddb8cd5e7df 45 #define DW1000_OTP_IF 0x2D // 18 One Time Programmable Memory Interface
AndyA 0:bddb8cd5e7df 46 #define DW1000_LDE_CTRL 0x2E // - Leading edge detection control block
AndyA 0:bddb8cd5e7df 47 #define DW1000_DIG_DIAG 0x2F // 41 Digital Diagnostics Interface
AndyA 0:bddb8cd5e7df 48 #define DW1000_PMSC 0x36 // 48 Power Management System Control Block
AndyA 0:bddb8cd5e7df 49
AndyA 0:bddb8cd5e7df 50 // AGC_CTRL sub registers
AndyA 0:bddb8cd5e7df 51 #define DWAGCCTRL_AGC_CTRL1 0x02
AndyA 0:bddb8cd5e7df 52 #define DWAGCCTRL_AGC_TUNE1 0x04
AndyA 0:bddb8cd5e7df 53 #define DWAGCCTRL_AGC_TUNE2 0x0C
AndyA 0:bddb8cd5e7df 54 #define DWAGCCTRL_AGC_TUNE3 0x12
AndyA 0:bddb8cd5e7df 55
AndyA 0:bddb8cd5e7df 56 // EXT_SYNC sub registers
AndyA 0:bddb8cd5e7df 57 #define DWEXTSYNC_EC_CTRL 0x00
AndyA 0:bddb8cd5e7df 58 #define DWEXTSYNC_EC_RXTC 0x04
AndyA 0:bddb8cd5e7df 59 #define DWEXTSYNC_EC_GOLP 0x08
AndyA 0:bddb8cd5e7df 60
AndyA 0:bddb8cd5e7df 61 // GPIO sub registers
AndyA 0:bddb8cd5e7df 62 #define DWGPIO_GPIO_MODE 0x00
AndyA 0:bddb8cd5e7df 63 #define DWGPIO_GPIO_DIR 0x08
AndyA 0:bddb8cd5e7df 64 #define DWGPIO_GPIO_DOUT 0x0C
AndyA 0:bddb8cd5e7df 65 #define DWGPIO_GPIO_IRQE 0x10
AndyA 0:bddb8cd5e7df 66 #define DWGPIO_GPIO_ISEN 0x14
AndyA 0:bddb8cd5e7df 67 #define DWGPIO_GPIO_IMODE 0x18
AndyA 0:bddb8cd5e7df 68 #define DWGPIO_GPIO_IBES 0x1C
AndyA 0:bddb8cd5e7df 69 #define DWGPIO_GPIO_ICLR 0x20
AndyA 0:bddb8cd5e7df 70 #define DWGPIO_GPIO_IDBE 0x24
AndyA 0:bddb8cd5e7df 71 #define DWGPIO_GPIO_RAW 0x28
AndyA 0:bddb8cd5e7df 72
AndyA 0:bddb8cd5e7df 73 // DRX sub registers
AndyA 0:bddb8cd5e7df 74 #define DWDRX_DRX_TUNE0B 0x02
AndyA 0:bddb8cd5e7df 75 #define DWDRX_DRX_TUNE1A 0x04
AndyA 0:bddb8cd5e7df 76 #define DWDRX_DRX_TUNE1B 0x06
AndyA 0:bddb8cd5e7df 77 #define DWDRX_DRX_TUNE2 0x08
AndyA 0:bddb8cd5e7df 78 #define DWDRX_DRX_SFDTOC 0x20
AndyA 0:bddb8cd5e7df 79 #define DWDRX_DRX_PRETOC 0x24
AndyA 0:bddb8cd5e7df 80 #define DWDRX_DRX_TUNE4H 0x26
AndyA 0:bddb8cd5e7df 81
AndyA 0:bddb8cd5e7df 82 //RF conf sub registers
AndyA 0:bddb8cd5e7df 83 #define DWRFCONF_RF_CONF 0x00
AndyA 0:bddb8cd5e7df 84 #define DWRFCONF_RF_RXCTRLH 0x0B
AndyA 0:bddb8cd5e7df 85 #define DWRFCONF_RF_TXCTRL 0x0C
AndyA 0:bddb8cd5e7df 86 #define DWRFCONF_RF_STATUS 0x2C
AndyA 0:bddb8cd5e7df 87 #define DWRFCONF_RF_LDOTUNE 0x30
AndyA 0:bddb8cd5e7df 88
AndyA 0:bddb8cd5e7df 89 // TX cal sub registers
AndyA 0:bddb8cd5e7df 90 #define DWTXCAL_TC_SARC 0x00
AndyA 0:bddb8cd5e7df 91 #define DWTXCAL_TC_SARL 0x03
AndyA 0:bddb8cd5e7df 92 #define DWTXCAL_TC_SARW 0x06
AndyA 0:bddb8cd5e7df 93 #define DWTXCAL_TC_PGDELAY 0x0B
AndyA 0:bddb8cd5e7df 94 #define DWTXCAL_TC_PGTEST 0x0C
AndyA 0:bddb8cd5e7df 95
AndyA 0:bddb8cd5e7df 96 // Freq synth sub registers
AndyA 0:bddb8cd5e7df 97 #define DWFSCTRL_FS_PLLCFG 0x07
AndyA 0:bddb8cd5e7df 98 #define DWFSCTRL_FS_PLLTUNE 0x0B
AndyA 0:bddb8cd5e7df 99 #define DWFSCTRL_FS_XTALT 0x0E
AndyA 0:bddb8cd5e7df 100
AndyA 0:bddb8cd5e7df 101 // Always on sub registers
AndyA 0:bddb8cd5e7df 102 #define DWAON_AON_WCFG 0x00
AndyA 0:bddb8cd5e7df 103 #define DWAON_AON_CTRL 0x02
AndyA 0:bddb8cd5e7df 104 #define DWAON_AON_RDAT 0x03
AndyA 0:bddb8cd5e7df 105 #define DWAON_AON_ADDR 0x04
AndyA 0:bddb8cd5e7df 106 #define DWAON_AON_CFG0 0x06
AndyA 0:bddb8cd5e7df 107 #define DWAON_AON_CFG1 0x0A
AndyA 0:bddb8cd5e7df 108
AndyA 0:bddb8cd5e7df 109 // OTP sub registers
AndyA 0:bddb8cd5e7df 110 #define DWOTP_OTP_WDAT 0x00
AndyA 0:bddb8cd5e7df 111 #define DWOTP_OTP_ADDR 0x04
AndyA 0:bddb8cd5e7df 112 #define DWOTP_OTP_CTRL 0x06
AndyA 0:bddb8cd5e7df 113 #define DWOTP_OTP_STAT 0x08
AndyA 0:bddb8cd5e7df 114 #define DWOTP_OTP_RDAT 0x0A
AndyA 0:bddb8cd5e7df 115 #define DWOTP_OTP_SRDAT 0x0E
AndyA 0:bddb8cd5e7df 116 #define DWOTP_OTP_SF 0x12
AndyA 0:bddb8cd5e7df 117
AndyA 0:bddb8cd5e7df 118 //LDE_IF sub registers
AndyA 0:bddb8cd5e7df 119 #define DWLDE_LDE_THRESH 0x0000
AndyA 0:bddb8cd5e7df 120 #define DWLDE_LDE_CFG1 0x0806
AndyA 0:bddb8cd5e7df 121 #define DWLDE_LDE_PPINDX 0x1000
AndyA 0:bddb8cd5e7df 122 #define DWLDE_LDE_PPAMPL 0x1002
AndyA 0:bddb8cd5e7df 123 #define DWLDE_LDE_RXANTD 0x1804
AndyA 0:bddb8cd5e7df 124 #define DWLDE_LDE_CFG2 0x1806
AndyA 0:bddb8cd5e7df 125 #define DWLDE_LDE_REPC 0x2804
AndyA 0:bddb8cd5e7df 126
AndyA 0:bddb8cd5e7df 127 // Dig Diag sub registers
AndyA 0:bddb8cd5e7df 128 #define DWDIAG_EVC_CTRL 0x00
AndyA 0:bddb8cd5e7df 129 #define DWDIAG_EVC_PHE 0x04
AndyA 0:bddb8cd5e7df 130 #define DWDIAG_EVC_RSE 0x06
AndyA 0:bddb8cd5e7df 131 #define DWDIAG_EVC_FCG 0x08
AndyA 0:bddb8cd5e7df 132 #define DWDIAG_EVC_FCE 0x0A
AndyA 0:bddb8cd5e7df 133 #define DWDIAG_EVC_FFR 0x0C
AndyA 0:bddb8cd5e7df 134 #define DWDIAG_EVC_OVR 0x0E
AndyA 0:bddb8cd5e7df 135 #define DWDIAG_EVC_STO 0x10
AndyA 0:bddb8cd5e7df 136 #define DWDIAG_EVC_PTO 0x12
AndyA 0:bddb8cd5e7df 137 #define DWDIAG_EVC_FWTO 0x14
AndyA 0:bddb8cd5e7df 138 #define DWDIAG_EVC_TXFS 0x16
AndyA 0:bddb8cd5e7df 139 #define DWDIAG_EVC_HPW 0x18
AndyA 0:bddb8cd5e7df 140 #define DWDIAG_EVC_TPW 0x1A
AndyA 0:bddb8cd5e7df 141 #define DWDIAG_DIAG_TMC 0x24
AndyA 0:bddb8cd5e7df 142
AndyA 0:bddb8cd5e7df 143 // power control sub registers
AndyA 0:bddb8cd5e7df 144 #define DWPMSC_PMSC_CTRL0 0x00
AndyA 0:bddb8cd5e7df 145 #define DWPMSC_PMSC_CTRL1 0x04
AndyA 0:bddb8cd5e7df 146 #define DWPMSC_PMSC_SNOZT 0x0C
AndyA 0:bddb8cd5e7df 147 #define DWPMSC_PMSC_TXFSEQ 0x26
AndyA 0:bddb8cd5e7df 148 #define DWPMSC_PMSC_LEDC 0x28
AndyA 0:bddb8cd5e7df 149
AndyA 0:bddb8cd5e7df 150
AndyA 0:bddb8cd5e7df 151 #define DW1000_WRITE_FLAG 0x80 // First Bit of the address has to be 1 to indicate we want to write
AndyA 0:bddb8cd5e7df 152 #define DW1000_SUBADDRESS_FLAG 0x40 // if we have a sub address second Bit has to be 1
AndyA 0:bddb8cd5e7df 153 #define DW1000_2_SUBADDRESS_FLAG 0x80 // if we have a long sub adress (more than 7 Bit) we set this Bit in the first part
AndyA 0:bddb8cd5e7df 154
AndyA 0:bddb8cd5e7df 155 typedef enum {defaultConfig, tunedDefault, user110k} UWBMode;
AndyA 0:bddb8cd5e7df 156
AndyA 0:bddb8cd5e7df 157 class DW1000
AndyA 0:bddb8cd5e7df 158 {
AndyA 0:bddb8cd5e7df 159 public:
AndyA 0:bddb8cd5e7df 160
AndyA 0:bddb8cd5e7df 161 DW1000(UWBMode setup, PinName MOSI, PinName MISO, PinName SCLK, PinName CS, PinName IRQ); // constructor, uses SPI class
AndyA 0:bddb8cd5e7df 162 void setCallbacks(void (*callbackRX)(void), void (*callbackTX)(void)); // setter for callback functions, automatically enables interrupt, if NULL is passed the coresponding interrupt gets disabled
AndyA 0:bddb8cd5e7df 163 template<typename T>
AndyA 0:bddb8cd5e7df 164 void setCallbacks(T* tptr, void (T::*mptrRX)(void), void (T::*mptrTX)(void)) { // overloaded setter to treat member function pointers of objects
AndyA 0:bddb8cd5e7df 165 callbackRX.attach(tptr, mptrRX); // possible client code: dw.setCallbacks(this, &A::callbackRX, &A::callbackTX);
AndyA 0:bddb8cd5e7df 166 callbackTX.attach(tptr, mptrTX); // concept seen in line 100 of http://developer.mbed.org/users/mbed_official/code/mbed/docs/4fc01daae5a5/InterruptIn_8h_source.html
AndyA 0:bddb8cd5e7df 167 setInterrupt(true,true);
AndyA 0:bddb8cd5e7df 168 }
AndyA 0:bddb8cd5e7df 169
AndyA 0:bddb8cd5e7df 170 // Device API
AndyA 0:bddb8cd5e7df 171 uint32_t getDeviceID(); // gets the Device ID which should be 0xDECA0130 (good for testing SPI!)
AndyA 0:bddb8cd5e7df 172 uint64_t getEUI(); // gets 64 bit Extended Unique Identifier according to IEEE standard
AndyA 0:bddb8cd5e7df 173 void setEUI(uint64_t EUI); // sets 64 bit Extended Unique Identifier according to IEEE standard
AndyA 0:bddb8cd5e7df 174 float getVoltage(); // gets the current chip voltage measurement form the A/D converter
AndyA 0:bddb8cd5e7df 175 float getTemperature(); // gets the current chip temperature measurement form the A/D converter
AndyA 0:bddb8cd5e7df 176 uint64_t getStatus(); // get the 40 bit device status
AndyA 0:bddb8cd5e7df 177 uint64_t getRXTimestamp();
AndyA 0:bddb8cd5e7df 178 uint64_t getTXTimestamp();
AndyA 0:bddb8cd5e7df 179
AndyA 0:bddb8cd5e7df 180 void sendString(char* message); // to send String with arbitrary length
AndyA 0:bddb8cd5e7df 181 void receiveString(char* message); // to receive char string (length of the buffer must be 1021 to be safe)
AndyA 0:bddb8cd5e7df 182 void sendFrame(uint8_t* message, uint16_t length); // send a raw frame (length in bytes)
AndyA 0:bddb8cd5e7df 183 void sendDelayedFrame(uint8_t* message, uint16_t length, uint64_t TxTimestamp);
AndyA 0:bddb8cd5e7df 184
AndyA 0:bddb8cd5e7df 185 void setupSyncedFrame(uint8_t* message, uint16_t length);
AndyA 0:bddb8cd5e7df 186 void armSyncedFrame();
AndyA 0:bddb8cd5e7df 187
AndyA 0:bddb8cd5e7df 188 void startRX(); // start listening for frames
AndyA 0:bddb8cd5e7df 189 void stopTRX(); // disable tranceiver go back to idle mode
AndyA 0:bddb8cd5e7df 190
AndyA 0:bddb8cd5e7df 191 void setRxDelay(uint16_t ticks);
AndyA 0:bddb8cd5e7df 192 void setTxDelay(uint16_t ticks);
AndyA 0:bddb8cd5e7df 193
AndyA 0:bddb8cd5e7df 194 uint16_t getFramelength(); // to get the framelength of the received frame from the PHY header
AndyA 0:bddb8cd5e7df 195
AndyA 0:bddb8cd5e7df 196 void readRxBuffer( uint8_t *buffer, int length ) {
AndyA 0:bddb8cd5e7df 197 readRegister(DW1000_RX_BUFFER, 0, buffer, length);
AndyA 0:bddb8cd5e7df 198 }
AndyA 0:bddb8cd5e7df 199
AndyA 0:bddb8cd5e7df 200 uint32_t readOTP (uint16_t word_address, uint8_t size);
AndyA 0:bddb8cd5e7df 201 bool writeOTP(uint16_t word_address,uint32_t data); // program a value in the OTP. It is recommended to reset afterwards.
AndyA 0:bddb8cd5e7df 202
AndyA 0:bddb8cd5e7df 203 protected:
AndyA 0:bddb8cd5e7df 204 void resetRX(); // soft reset only the tranciever part of DW1000
AndyA 0:bddb8cd5e7df 205 void setInterrupt(bool RX, bool TX); // set Interrupt for received a good frame (CRC ok) or transmission done
AndyA 0:bddb8cd5e7df 206
AndyA 0:bddb8cd5e7df 207
AndyA 0:bddb8cd5e7df 208 private:
AndyA 0:bddb8cd5e7df 209 void resetAll(); // soft reset the entire DW1000 (some registers stay as they were see User Manual)
AndyA 0:bddb8cd5e7df 210 void loadLDE(); // load the leading edge detection algorithm to RAM, [IMPORTANT because receiving malfunction may occur] see User Manual LDELOAD on p22 & p158
AndyA 0:bddb8cd5e7df 211 void loadLDOTUNE(); // load the LDO tuning as set in the factory
AndyA 0:bddb8cd5e7df 212
AndyA 0:bddb8cd5e7df 213
AndyA 0:bddb8cd5e7df 214 // Interrupt
AndyA 0:bddb8cd5e7df 215 InterruptIn irq; // Pin used to handle Events from DW1000 by an Interrupthandler
AndyA 0:bddb8cd5e7df 216 FunctionPointer callbackRX; // function pointer to callback which is called when successfull RX took place
AndyA 0:bddb8cd5e7df 217 FunctionPointer callbackTX; // function pointer to callback which is called when successfull TX took place
AndyA 0:bddb8cd5e7df 218 void ISR(); // interrupt handling method (also calls according callback methods)
AndyA 0:bddb8cd5e7df 219
AndyA 0:bddb8cd5e7df 220
AndyA 0:bddb8cd5e7df 221 // OTP
AndyA 0:bddb8cd5e7df 222 uint32_t readOTP32(uint16_t address);
AndyA 0:bddb8cd5e7df 223
AndyA 0:bddb8cd5e7df 224 // SPI Inteface
AndyA 0:bddb8cd5e7df 225 SPI spi; // SPI Bus
AndyA 0:bddb8cd5e7df 226 DigitalOut cs; // Slave selector for SPI-Bus (here explicitly needed to start and end SPI transactions also usable to wake up DW1000)
AndyA 0:bddb8cd5e7df 227
AndyA 0:bddb8cd5e7df 228 uint8_t readRegister8(uint8_t reg, uint16_t subaddress); // expressive methods to read or write the number of bits written in the name
AndyA 0:bddb8cd5e7df 229 uint16_t readRegister16(uint8_t reg, uint16_t subaddress);
AndyA 0:bddb8cd5e7df 230 uint32_t readRegister32(uint8_t reg, uint16_t subaddress);
AndyA 0:bddb8cd5e7df 231 uint64_t readRegister40(uint8_t reg, uint16_t subaddress);
AndyA 0:bddb8cd5e7df 232 uint64_t readRegister64(uint8_t reg, uint16_t subaddress);
AndyA 0:bddb8cd5e7df 233 void writeRegister8(uint8_t reg, uint16_t subaddress, uint8_t buffer);
AndyA 0:bddb8cd5e7df 234 void writeRegister16(uint8_t reg, uint16_t subaddress, uint16_t buffer);
AndyA 0:bddb8cd5e7df 235 void writeRegister32(uint8_t reg, uint16_t subaddress, uint32_t buffer);
AndyA 0:bddb8cd5e7df 236 void writeRegister40(uint8_t reg, uint16_t subaddress, uint64_t buffer);
AndyA 0:bddb8cd5e7df 237
AndyA 0:bddb8cd5e7df 238 void readRegister(uint8_t reg, uint16_t subaddress, uint8_t *buffer, int length); // reads the selected part of a slave register into the buffer memory
AndyA 0:bddb8cd5e7df 239 void writeRegister(uint8_t reg, uint16_t subaddress, uint8_t *buffer, int length); // writes the buffer memory to the selected slave register
AndyA 0:bddb8cd5e7df 240 void setupTransaction(uint8_t reg, uint16_t subaddress, bool write); // sets up an SPI read or write transaction with correct register address and offset
AndyA 0:bddb8cd5e7df 241 void select(); // selects the only slave for a transaction
AndyA 0:bddb8cd5e7df 242 void deselect(); // deselects the only slave after transaction
AndyA 0:bddb8cd5e7df 243 };
AndyA 0:bddb8cd5e7df 244
AndyA 0:bddb8cd5e7df 245 #endif