please explain GPIO numbering


#1

With the following command I can switch on the green LED on the MAIX GO:
GPIO = machine.GPIO ( machine.GPIO.GPIO0, machine.GPIO.DM_OUTPUT, machine.GPIO.LOW_LEVEL )
or shorter: GPIO = machine.GPIO(0, 3, 0)

But GPIO0 and the green LED occur in several places with different numbering:
machine.GPIO.GPIO0 = 0
fm.fpioa.GPIO0 = 56
silkscreen GREEN = 12 but actual physical pin green led = 14 (possibly a mapping issue, maybe in init.py)
board_info.LED_G = 13

I found that board_info.LED_G is hard coded in board.py, and the silkscreen is probably wrong.
Can anyone explain why there are so many different numbers and how they all connect to each other?

Update:
I found a list of the 256 functions defined for the fpioa in the standalone sdk (kendryte-standalone-sdk-0.3.0/lib/drivers/include/fpioa.h). There, function 56 corresponds to GPIO0.


#2

Hi, you are right, we make mistake at the silk, we have fix it in next pcb. thank you!