jacob.eva/arduino-esp32
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Fix Early return when Address NAK is received ()

Browse Source 
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.
This commit is contained in:
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

2
cores/esp32/esp32-hal-i2c.c

@ -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;
}