Documentation error for STM32MP215-DK

[ADunc.1]

I spotted that the documentation and code examples do not match for port pin assignments for LED2 and LED 4.

The user manual manual does not match the schematics:

Code examples do match the schematics, so just a documentation error I think.

EDIT:  There is definitely some sort of misalignment here.  The Linux device tree (stm32mp215f-dk.dts) puts the blue LED on PZ3.  And when controlled on/off or heartbeat through Linux, the blue led labelled LD2 on the dev kit is controlled.  So this seems to match the user manual!

	gpio-leds {
		compatible = "gpio-leds";

		led-blue {
			function = LED_FUNCTION_HEARTBEAT;
			color = <LED_COLOR_ID_BLUE>;
			gpios = <&gpioz 3 GPIO_ACTIVE_HIGH>;
			linux,default-trigger = "heartbeat";
			default-state = "off";
		};
	};

I can only assume the LED labelled LD4 on the dev kit is wired to pin PF10?

[PatrickF]

Hi @ADunc.1 ,

quickly checked, I think there is no mistake, just component numbering (which is automatic I guess) that are not aligned with PCB signal naming (alignment is not mandatory although is create headache).

• PZ3 schematic signal name is LED4, and control the blue LED labelled LD2
• PH12 schematics signal name is LED3, and control the orange LED labelled LD3
• PF10 schematics signal name is LED2, and control the green LED labelled LD4
• PH4 schematics signal name is LED1, and control the red LED labelled LD5

 

Regards.

[ADunc.1]

@PatrickF Thanks for checking.  Yeah, it's not super ideal having them labelled inconsistently, but not the end of the world.  Perhaps a note in that table in the user manual would help clarify.