From 6fcc35325037c7fa3ad4fa6bfb563a774fea2b35 Mon Sep 17 00:00:00 2001
From: Jason K <jason.kania@ymail.com>
Date: Mon, 21 Aug 2017 23:15:26 -0400
Subject: [PATCH] Change to retry setting up I2C command rather than waiting
without making a reattempt.
---
cores/esp32/esp32-hal-i2c.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/cores/esp32/esp32-hal-i2c.c b/cores/esp32/esp32-hal-i2c.c
index e5354b91faa..ae16216a408 100644
--- a/cores/esp32/esp32-hal-i2c.c
+++ b/cores/esp32/esp32-hal-i2c.c
@@ -445,7 +445,8 @@ void i2cInitFix(i2c_t * i2c){
i2c->dev->fifo_data.data = 0;
i2cSetCmd(i2c, 1, I2C_CMD_WRITE, 1, false, false, false);
i2cSetCmd(i2c, 2, I2C_CMD_STOP, 0, false, false, false);
- i2c->dev->ctr.trans_start = 1;
- while(!i2c->dev->command[2].done);
+ do {
+ i2c->dev->ctr.trans_start = 1;
+ } while(!i2c->dev->command[2].done);
I2C_MUTEX_UNLOCK();
}