diff --git a/sonoff/support.ino b/sonoff/support.ino index 80c774bbc..b3c4ce2b4 100644 --- a/sonoff/support.ino +++ b/sonoff/support.ino @@ -1188,10 +1188,11 @@ uint32_t i2c_buffer = 0; bool I2cValidRead(uint8_t addr, uint8_t reg, uint8_t size) { - uint8_t x = I2C_RETRY_COUNTER; + uint8_t retry = I2C_RETRY_COUNTER; + bool status = false; i2c_buffer = 0; - do { + while (!status && retry) { Wire.beginTransmission(addr); // start transmission to device Wire.write(reg); // sends register address to read from if (0 == Wire.endTransmission(false)) { // Try to become I2C Master, send data and collect bytes, keep master status for next request... @@ -1200,11 +1201,12 @@ bool I2cValidRead(uint8_t addr, uint8_t reg, uint8_t size) for (uint8_t i = 0; i < size; i++) { i2c_buffer = i2c_buffer << 8 | Wire.read(); // receive DATA } + status = true; } } - x--; - } while (Wire.endTransmission(true) != 0 && x != 0); // end transmission - return (x); + retry--; + } + return status; } bool I2cValidRead8(uint8_t *data, uint8_t addr, uint8_t reg)