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Copy pathM5ModulePPS.cpp
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168 lines (142 loc) · 4.18 KB
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#include "M5ModulePPS.h"
bool M5ModulePPS::begin(TwoWire *wire, uint8_t sda, uint8_t scl, uint8_t addr,
uint32_t speed) {
_wire = wire;
_addr = addr;
_sda = sda;
_scl = scl;
_speed = speed;
_wire->begin(_sda, _scl);
_wire->setClock(_speed);
delay(10);
_wire->beginTransmission(_addr);
uint8_t error = _wire->endTransmission();
if (error == 0) {
return true;
} else {
return false;
}
}
bool M5ModulePPS::writeBytes(uint8_t addr, uint8_t reg, uint8_t *buffer,
uint8_t length) {
_wire->beginTransmission(addr);
_wire->write(reg);
_wire->write(buffer, length);
if (_wire->endTransmission() == 0) return true;
return false;
}
bool M5ModulePPS::readBytes(uint8_t addr, uint8_t reg, uint8_t *buffer,
uint8_t length) {
uint8_t index = 0;
_wire->beginTransmission(addr);
_wire->write(reg);
_wire->endTransmission(false);
if (_wire->requestFrom(addr, length)) {
for (uint8_t i = 0; i < length; i++) {
buffer[index++] = _wire->read();
}
return true;
}
return false;
}
void M5ModulePPS::float_to_bytes(float s, uint8_t *d) {
union {
float value;
uint8_t bytes[4];
} f2b;
f2b.value = s;
memcpy(d, f2b.bytes, 4);
}
float M5ModulePPS::bytes_to_float(uint8_t *s) {
union {
float value;
uint8_t bytes[4];
} f2b;
memcpy(f2b.bytes, s, 4);
return f2b.value;
}
uint16_t M5ModulePPS::getID(void) {
uint8_t wbuf[1] = {MODULE_ID_L};
uint8_t rbuf[2] = {0};
readBytes(_addr, MODULE_ID_L, rbuf, 2);
return (rbuf[1] << 8 | rbuf[0]);
}
void M5ModulePPS::setPowerEnable(bool en) {
uint8_t wbuf[1] = {0};
wbuf[0] = en ? 0x01 : 0;
writeBytes(_addr, MODULE_ENABLE, wbuf, 1);
}
uint8_t M5ModulePPS::getPowerEnable(void) {
uint8_t rbuf[1] = {0};
readBytes(_addr, MODULE_ENABLE, rbuf, 1);
return rbuf[0];
}
uint8_t M5ModulePPS::getMode(void) {
uint8_t rbuf[1];
readBytes(_addr, PSU_RUNNING_MODE, rbuf, 1);
return rbuf[0];
}
float M5ModulePPS::getVIN(void) {
uint8_t rbuf[4] = {0};
readBytes(_addr, PSU_VIN_READBACK_1, rbuf, 4);
return bytes_to_float(rbuf);
}
float M5ModulePPS::getTemperature(void) {
uint8_t rbuf[4] = {0};
readBytes(_addr, PSU_TEMP_READBACK_1, rbuf, 4);
return bytes_to_float(rbuf);
}
float M5ModulePPS::getReadbackVoltage(void) {
uint8_t rbuf[4] = {0};
readBytes(_addr, PSU_VOUT_READBACK_1, rbuf, 4);
return bytes_to_float(rbuf);
}
void M5ModulePPS::setOutputVoltage(float vol) {
uint8_t wbuf[4] = {0};
float_to_bytes(vol, wbuf);
writeBytes(_addr, PSU_VOUT_SET_1, wbuf, 4);
}
float M5ModulePPS::getOutputVoltage(void) {
uint8_t rbuf[4] = {0};
readBytes(_addr, PSU_VOUT_SET_1, rbuf, 4);
return bytes_to_float(rbuf);
}
float M5ModulePPS::getReadbackCurrent(void) {
uint8_t rbuf[4] = {0};
readBytes(_addr, PSU_IOUT_READBACK_1, rbuf, 4);
return bytes_to_float(rbuf);
}
void M5ModulePPS::setOutputCurrent(float cur) {
uint8_t wbuf[4] = {0};
float_to_bytes(cur, wbuf);
writeBytes(_addr, PSU_IOUT_SET_1, wbuf, 4);
}
float M5ModulePPS::getOutputCurrent(void) {
uint8_t rbuf[4] = {0};
readBytes(_addr, PSU_IOUT_SET_1, rbuf, 4);
return bytes_to_float(rbuf);
}
void M5ModulePPS::getUID(uint32_t *uid0, uint32_t *uid1, uint32_t *uid2) {
uint8_t rbuf[12] = {0};
readBytes(MODULE_POWER_ADDR, PSU_PSU_ID_W0, rbuf, 12);
*uid0 = (rbuf[0] | (rbuf[1] << 8) | (rbuf[2] << 16) | (rbuf[3] << 24));
*uid1 = (rbuf[4] | (rbuf[5] << 8) | (rbuf[6] << 16) | (rbuf[7] << 24));
*uid2 = (rbuf[8] | (rbuf[9] << 8) | (rbuf[10] << 16) | (rbuf[11] << 24));
}
uint8_t M5ModulePPS::setI2CAddress(uint8_t addr) {
_wire->beginTransmission(_addr);
_wire->write(I2C_ADDRESS_REG);
_wire->write(addr);
_wire->endTransmission();
_addr = addr;
return _addr;
}
uint8_t M5ModulePPS::getI2CAddress(void) {
_wire->beginTransmission(_addr);
_wire->write(I2C_ADDRESS_REG);
_wire->endTransmission();
uint8_t RegValue;
_wire->requestFrom(_addr, 1);
RegValue = Wire.read();
return RegValue;
}