static bool i2cSelectDevice(u8 bus_id, u8 dev_reg)
{
i2cWaitBusy(bus_id);
*i2cGetDataReg(bus_id) = dev_reg;
*i2cGetCntReg(bus_id) = 0xC2;
return i2cGetResult(bus_id);
}
static bool i2cSelectRegister(u8 bus_id, u8 reg)
{
i2cWaitBusy(bus_id);
*i2cGetDataReg(bus_id) = reg;
*i2cGetCntReg(bus_id) = 0xC0;
return i2cGetResult(bus_id);
}
bool i2cWriteRegister(u8 dev_id, u8 reg, u8 data) {
u8 bus_id = i2cGetDeviceBusId(dev_id);
u8 dev_addr = i2cGetDeviceRegAddr(dev_id);
for (int i = 0; i < 8; i++) {
if (i2cSelectDevice(bus_id, dev_addr) && i2cSelectRegister(bus_id, reg)) {
i2cWaitBusy(bus_id);
*i2cGetDataReg(bus_id) = data;
*i2cGetCntReg(bus_id) = 0xC1;
i2cStop(bus_id, 0);
if (i2cGetResult(bus_id))
return true;
}
*i2cGetCntReg(bus_id) = 0xC5;
i2cWaitBusy(bus_id);
}
return false;
}
