Set I2C timing to 400kHz for EEPROM access.

Src/main.c

@@ -603,7 +603,7 @@ static void MX_I2C3_Init(void)
 {
 
   hi2c3.Instance = I2C3;
-  hi2c3.Init.Timing = 0x00000107;
+  hi2c3.Init.Timing = 0x0010061A;
   hi2c3.Init.OwnAddress1 = 0;
   hi2c3.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
   hi2c3.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;