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Custom I2C port #11

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Custom I2C port #11

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bbc1d80
Fix name conflict with ESP32
SmartBoy84 Apr 17, 2025
8d7e3ab
allow settings custom i2c port
SmartBoy84 Apr 17, 2025
57ccc03
use reference to wireport
SmartBoy84 Apr 17, 2025
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23 changes: 14 additions & 9 deletions src/SparkFun_LIS331.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,11 @@ void LIS331::begin(comm_mode mode)
for (int i = 0x30; i < 0x37; i++) LIS331_write(i,&data,1);
}

void LIS331::setI2CPort(TwoWire &wirePort)
{
this->wirePort = &wirePort;
}

void LIS331::setI2CAddr(uint8_t address)
{
this->address = address;
Expand Down Expand Up @@ -363,13 +368,13 @@ void LIS331::LIS331_write(uint8_t reg_address, uint8_t *data, uint8_t len)
if (mode == USE_I2C)
{
// I2C write handling code
Wire.beginTransmission(address);
Wire.write(reg_address);
this->wirePort->beginTransmission(address);
this->wirePort->write(reg_address);
for(int i = 0; i<len; i++)
{
Wire.write(data[i]);
this->wirePort->write(data[i]);
}
Wire.endTransmission();
this->wirePort->endTransmission();
}
else
{
Expand All @@ -389,13 +394,13 @@ void LIS331::LIS331_read(uint8_t reg_address, uint8_t *data, uint8_t len)
if (mode == USE_I2C)
{
// I2C read handling code
Wire.beginTransmission(address);
Wire.write(reg_address);
Wire.endTransmission();
Wire.requestFrom(address, len);
this->wirePort->beginTransmission(address);
this->wirePort->write(reg_address);
this->wirePort->endTransmission();
this->wirePort->requestFrom(address, len);
for (int i = 0; i<len; i++)
{
data[i] = Wire.read();
data[i] = this->wirePort->read();
}
}
else
Expand Down
7 changes: 5 additions & 2 deletions src/SparkFun_LIS331.h
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@
#define __sparkfun_lis331_h__

#include <stdint.h>
#include <Wire.h>

#define CTRL_REG1 0x20
#define CTRL_REG2 0x21
Expand Down Expand Up @@ -35,7 +36,7 @@ class LIS331
LOW_POWER_2HZ, LOW_POWER_5HZ, LOW_POWER_10HZ} power_mode;
typedef enum {DR_50HZ, DR_100HZ, DR_400HZ, DR_1000HZ} data_rate;
typedef enum {HPC_8, HPC_16, HPC_32, HPC_64} high_pass_cutoff_freq_cfg;
typedef enum {PUSH_PULL, OPEN_DRAIN} pp_od;
typedef enum {PUSH_PULL, OPEN_DRAIN_LIS} pp_od;
typedef enum {INT_SRC, INT1_2_SRC, DRDY, BOOT} int_sig_src;
typedef enum {LOW_RANGE, MED_RANGE, NO_RANGE, HIGH_RANGE} fs_range;
typedef enum {X_AXIS, Y_AXIS, Z_AXIS} int_axis;
Expand All @@ -44,6 +45,7 @@ class LIS331
// public functions
LIS331(); // Constructor. Defers all functionality to .begin()
void begin(comm_mode mode);
void setI2CPort(TwoWire &wirePort);
void setI2CAddr(uint8_t address);
void setSPICSPin(uint8_t pin);
void axesEnable(bool enable);
Expand Down Expand Up @@ -71,10 +73,11 @@ class LIS331
private:

comm_mode mode; // comms mode, I2C or SPI
TwoWire *wirePort = &Wire;
uint8_t address; // I2C address
uint8_t CSPin;
void LIS331_write(uint8_t address, uint8_t *data, uint8_t len);
void LIS331_read(uint8_t address, uint8_t *data, uint8_t len);
};

#endif
#endif