Wire: wait while bus is busy if ack failed

me-no-dev · me-no-dev · commit 668c3811b881 · 2016-12-15T01:41:54.000+02:00
diff --git a/cores/esp32/esp32-hal-i2c.c b/cores/esp32/esp32-hal-i2c.c
@@ -219,6 +219,7 @@ 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);
                 I2C_MUTEX_UNLOCK();
                 return I2C_ERROR_ACK;
             }

Original file line number	Diff line number	Diff line change
`@@ -219,6 +219,7 @@ i2c_err_t i2cWrite(i2c_t * i2c, uint16_t address, bool addr_10bit, uint8_t * dat`
`219`	`219`	`//Transmission did not finish and ACK_ERR is set`
`220`	`220`	`if(i2c->dev->int_raw.ack_err) {`
`221`	`221`	`//log_w("Ack Error! Addr: %x", address >> 1);`
	`222`	`+ while(i2c->dev->status_reg.bus_busy);`
`222`	`223`	`I2C_MUTEX_UNLOCK();`
`223`	`224`	`return I2C_ERROR_ACK;`
`224`	`225`	`}`