stm32/boars/ARDUINO_OPTA: Reset ETH PHY on board init.

iabdalkader · iabdalkader · commit a98ecc7506c4 · 2025-08-26T09:56:20.000+02:00
As required by the datasheet.

Signed-off-by: iabdalkader &lt;i.abdalkader@gmail.com&gt;
diff --git a/ports/stm32/boards/ARDUINO_OPTA/board_init.c b/ports/stm32/boards/ARDUINO_OPTA/board_init.c
@@ -61,6 +61,13 @@ void OPTA_board_early_init(void) {
         HAL_MPU_ConfigRegion(&MPU_InitStruct);
     }
     #endif
+
+    // Reset ETH Phy
+    mp_hal_pin_config(pyb_pin_ETH_RST, MP_HAL_PIN_MODE_OUTPUT, MP_HAL_PIN_PULL_UP, 0);
+    mp_hal_pin_config_speed(pyb_pin_ETH_RST, MP_HAL_PIN_SPEED_LOW);
+    mp_hal_pin_write(pyb_pin_ETH_RST, 0);
+    HAL_Delay(100);
+    mp_hal_pin_write(pyb_pin_ETH_RST, 1);
 }
 
 void OPTA_board_enter_bootloader(void) {

Original file line number	Diff line number	Diff line change
`@@ -61,6 +61,13 @@ void OPTA_board_early_init(void) {`
`61`	`61`	`HAL_MPU_ConfigRegion(&MPU_InitStruct);`
`62`	`62`	`}`
`63`	`63`	`#endif`
	`64`	`+`
	`65`	`+ // Reset ETH Phy`
	`66`	`+ mp_hal_pin_config(pyb_pin_ETH_RST, MP_HAL_PIN_MODE_OUTPUT, MP_HAL_PIN_PULL_UP, 0);`
	`67`	`+ mp_hal_pin_config_speed(pyb_pin_ETH_RST, MP_HAL_PIN_SPEED_LOW);`
	`68`	`+ mp_hal_pin_write(pyb_pin_ETH_RST, 0);`
	`69`	`+ HAL_Delay(100);`
	`70`	`+ mp_hal_pin_write(pyb_pin_ETH_RST, 1);`
`64`	`71`	`}`
`65`	`72`
`66`	`73`	`void OPTA_board_enter_bootloader(void) {`