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Fix Early return when Address NAK is received (#750)

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The i2cWrite() function was returning to the app before the i2c transaction had completed.  This caused the next Wire() call to return a I2C_ERROR_BUSY.
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chuck todd 2017-10-21 00:40:53 -06:00 committed by Me No Dev
parent 81f225a4c5
commit 7eff707ba6
1 changed files with 1 additions and 1 deletions
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cores/esp32/esp32-hal-i2c.c
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@ -229,7 +229,7 @@ i2c_err_t i2cWrite(i2c_t * i2c, uint16_t address, bool addr_10bit, uint8_t * dat
//Transmission did not finish and ACK_ERR is set
if(i2c->dev->int_raw.ack_err) {
log_w("Ack Error! Addr: %x", address >> 1);
while((i2c->dev->status_reg.bus_busy) && ((millis() - startAt)>50));
while((i2c->dev->status_reg.bus_busy) && ((millis() - startAt)<50));
I2C_MUTEX_UNLOCK();
return I2C_ERROR_ACK;
}