ChaochaoCui commented on a change in pull request #2391:
URL: https://github.com/apache/incubator-nuttx/pull/2391#discussion_r530766189
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File path: arch/arm/src/stm32f7/hardware/stm32f74xx75xx_pinmap.h
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@@ -545,12 +545,12 @@
#define GPIO_I2C2_SMBA_2
(GPIO_ALT|GPIO_AF4|GPIO_SPEED_50MHz|GPIO_PUSHPULL|GPIO_PORTF|GPIO_PIN2)
#define GPIO_I2C2_SMBA_3
(GPIO_ALT|GPIO_AF4|GPIO_SPEED_50MHz|GPIO_PUSHPULL|GPIO_PORTH|GPIO_PIN6)
-#define GPIO_I2C3_SCL_1
(GPIO_ALT|GPIO_AF4|GPIO_SPEED_50MHz|GPIO_OPENDRAIN|GPIO_PORTA|GPIO_PIN8)
-#define GPIO_I2C3_SCL_2
(GPIO_ALT|GPIO_AF4|GPIO_SPEED_50MHz|GPIO_OPENDRAIN|GPIO_PORTH|GPIO_PIN7)
-#define GPIO_I2C3_SDA_1
(GPIO_ALT|GPIO_AF4|GPIO_SPEED_50MHz|GPIO_OPENDRAIN|GPIO_PORTC|GPIO_PIN9)
-#define GPIO_I2C3_SDA_2
(GPIO_ALT|GPIO_AF4|GPIO_SPEED_50MHz|GPIO_OPENDRAIN|GPIO_PORTH|GPIO_PIN8)
-#define GPIO_I2C3_SMBA_1
(GPIO_ALT|GPIO_AF4|GPIO_SPEED_50MHz|GPIO_PUSHPULL|GPIO_PORTA|GPIO_PIN9)
-#define GPIO_I2C3_SMBA_2
(GPIO_ALT|GPIO_AF4|GPIO_SPEED_50MHz|GPIO_PUSHPULL|GPIO_PORTH|GPIO_PIN9)
+#define GPIO_I2C3_SCL_1
(GPIO_ALT|GPIO_AF4|GPIO_SPEED_100MHz|GPIO_OPENDRAIN|GPIO_PORTA|GPIO_PIN8)
Review comment:
When I debug wm8994 codec driver, the STM32F746 communicate with WM8996
through I2C, use 100MHz ok, but 50MHz not ok.
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