PIO program refuse to load: wait instruction need to have the GPIO nb-16 if pio_gpio_base is 16

[FreddyVRetro]

Hi,

I did a code that need pio_gpio_base set to 16.
However, we must use the GPIO pin number -16 in the wait instruction.

if we do this, the pio asm set the used_gpio_range to 2, and the sdk refuse to load the program with the return code -11

GPIO used for the wait : Pin 30 then goes to 14 when we remove 16.

I had to send the instruction via the register X, then do "mov exec,X" to have it doing the wait on the correct pin.
(It works like that)

[lurch]

Are you using the RP2350B ?

[FreddyVRetro]

Yes of course Le lun. 10 mars 2025, 14:12, Andrew Scheller ***@***.***> a écrit :

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Are you using the RP2350B ? — Reply to this email directly, view it on GitHub <#2342 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ASCSLB7TGCATENCFHBARCHD2TWFTVAVCNFSM6AAAAABYWCB4LCVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDOMJQGU2TKNJYGM> . You are receiving this because you authored the thread.Message ID: ***@***.***> [image: lurch]*lurch* left a comment (raspberrypi/pico-sdk#2342) <#2342 (comment)> Are you using the RP2350B ? — Reply to this email directly, view it on GitHub <#2342 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ASCSLB7TGCATENCFHBARCHD2TWFTVAVCNFSM6AAAAABYWCB4LCVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDOMJQGU2TKNJYGM> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[peterharperuk]

Is PICO_PIO_USE_GPIO_BASE == 1 ?

[FreddyVRetro]

Yes as well. Envoyé à partir de Outlook pour Android<https://aka.ms/AAb9ysg>

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________________________________ From: Peter Harper ***@***.***> Sent: Monday, March 10, 2025 2:41:57 PM To: raspberrypi/pico-sdk ***@***.***> Cc: FreddyV ***@***.***>; Author ***@***.***> Subject: Re: [raspberrypi/pico-sdk] PIO program refuse to load: wait instruction need to have the GPIO nb-16 if pio_gpio_base is 16 (Issue #2342) Is PICO_PIO_USE_GPIO_BASE == 1 ? — Reply to this email directly, view it on GitHub<#2342 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/ASCSLB4WZTUQ6O3VU53GB7D2TWJCLAVCNFSM6AAAAABYWCB4LCVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDOMJQGYZTQNBXHA>. You are receiving this because you authored the thread.Message ID: ***@***.***> [peterharperuk]peterharperuk left a comment (raspberrypi/pico-sdk#2342)<#2342 (comment)> Is PICO_PIO_USE_GPIO_BASE == 1 ? — Reply to this email directly, view it on GitHub<#2342 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/ASCSLB4WZTUQ6O3VU53GB7D2TWJCLAVCNFSM6AAAAABYWCB4LCVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDOMJQGYZTQNBXHA>. You are receiving this because you authored the thread.Message ID: ***@***.***>

[FreddyVRetro]

Hi again.

it is not that it does not work.
I did prove that it work by modifying the PIO code from the Core, after loading the PIO program.

It is just the PIO program load that return an error, but it is correct... the wait instruction need a value <32, then the gpio number need to be reduced by 16.

Maybe the PIO asm does it if the pio_gpio_offset is set in the C portion of the .pio code ?