51 lines
1.2 KiB
C++
51 lines
1.2 KiB
C++
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#include "src/headers/MLX90640_I2C_Driver.h"
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#include "mlx90640.hpp"
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#include "stdio.h"
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static pimoroni::I2C *i2c;
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void MLX90640_I2CConfigure(pimoroni::I2C *i2c_instance) {
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i2c = i2c_instance;
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}
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void MLX90640_I2CInit()
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{
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// i2c->init(); // Called in constructor
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}
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int MLX90640_I2CGeneralReset(void)
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{
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return 0;
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}
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int MLX90640_I2CRead(uint8_t slaveAddr, uint16_t startAddress, uint16_t nMemAddressRead, uint16_t *data)
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{
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uint8_t cmd[2] = {(char)(startAddress >> 8), (char)(startAddress & 0xFF)};
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// Set 16-bit register pointer
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i2c->write_blocking(slaveAddr, cmd, sizeof(cmd), true);
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// Read result
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i2c->read_blocking(slaveAddr, (uint8_t*)data, nMemAddressRead * sizeof(uint16_t), false);
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for(auto n = 0u; n < nMemAddressRead; n++) {
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data[n] = __builtin_bswap16(data[n]);
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}
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return 0;
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}
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void MLX90640_I2CFreqSet(int freq)
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{
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// We can't assume we own the I2C instance and can wiggle the baudrate ad-hoc
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}
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int MLX90640_I2CWrite(uint8_t slaveAddr, uint16_t writeAddress, uint16_t data)
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{
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uint8_t cmd[4] = {(char)(writeAddress >> 8), (char)(writeAddress & 0x00FF), (char)(data >> 8), (char)(data & 0x00FF)};
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i2c->write_blocking(slaveAddr, cmd, sizeof(cmd), false);
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return 0;
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}
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