From 169966e835d172d8bc9f8e557e9cc98a8bbb8dad Mon Sep 17 00:00:00 2001
From: me-no-dev <hristo@espressif.com>
Date: Thu, 28 Apr 2022 02:14:07 +0300
Subject: [PATCH] Fix onRequest being called for every slave address
Fixes: https://github.com/espressif/arduino-esp32/issues/5907
---
cores/esp32/esp32-hal-i2c-slave.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/cores/esp32/esp32-hal-i2c-slave.c b/cores/esp32/esp32-hal-i2c-slave.c
index e73a6db642c..99bc2c54c9b 100644
--- a/cores/esp32/esp32-hal-i2c-slave.c
+++ b/cores/esp32/esp32-hal-i2c-slave.c
@@ -719,10 +719,12 @@ static void i2c_slave_isr_handler(void* arg)
}
if(slave_rw){ // READ
#if CONFIG_IDF_TARGET_ESP32
- //SEND TX Event
- i2c_slave_queue_event_t event;
- event.event = I2C_SLAVE_EVT_TX;
- pxHigherPriorityTaskWoken |= i2c_slave_send_event(i2c, &event);
+ if(i2c->dev->status_reg.scl_main_state_last == 6){
+ //SEND TX Event
+ i2c_slave_queue_event_t event;
+ event.event = I2C_SLAVE_EVT_TX;
+ pxHigherPriorityTaskWoken |= i2c_slave_send_event(i2c, &event);
+ }
#else
//reset TX data
i2c_ll_txfifo_rst(i2c->dev);