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Update support.ino 

Fix I2cValidRead (#2442)
This commit is contained in:
Theo Arends 2019-05-14 18:41:54 +02:00
parent e472d3232a
commit bacb438a98
1 changed files with 7 additions and 5 deletions
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12
sonoff/support.ino
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@ -1188,10 +1188,11 @@ uint32_t i2c_buffer = 0;
bool I2cValidRead(uint8_t addr, uint8_t reg, uint8_t size) 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; i2c_buffer = 0;
do { while (!status && retry) {
Wire.beginTransmission(addr); // start transmission to device Wire.beginTransmission(addr); // start transmission to device
Wire.write(reg); // sends register address to read from 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... 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++) { for (uint8_t i = 0; i < size; i++) {
i2c_buffer = i2c_buffer << 8 | Wire.read(); // receive DATA i2c_buffer = i2c_buffer << 8 | Wire.read(); // receive DATA
} }
status = true;
} }
} }
x--; retry--;
} while (Wire.endTransmission(true) != 0 && x != 0); // end transmission }
return (x); return status;
} }
bool I2cValidRead8(uint8_t *data, uint8_t addr, uint8_t reg) bool I2cValidRead8(uint8_t *data, uint8_t addr, uint8_t reg)