NG on STM32 (with multi CLCD)

[Duggle]

I'd like to use multiple CLCD's on a Core STM32 as part of an ongoing hardware debug excercise  :happy:

Of course the STM32 PCB does not have a J28 for the attachment of a DOUT board that provides the extra E lines to all the extra LCD modules.

So my strategy for this was to implement the MIOS32_BOARD_J28_* routines (which at present for STM32, just return -1), with equivalent code that bitbangs J16 or J19.

Is there an easy way to achieve this?

I couldn't see support routines for J16 or J19 so I would I have to write these?

Are there any major problems with what I'm proposing?

[TK.]

J16 is used by the application to access the SD Card -> no way!

J19 would be used by the application if the .NGC file enables the AINSER or CV port -> potential conflicts as well.

 

Therefore I would propose to use J5C instead.

In many applications (e.g. MBSEQ V4) J28 of the LPC17 core is used as a replacement for J5C of the STM32 core anyhow, so why not using it for your special case as well?

 

Best Regards, Thorsten.

[Duggle]

J16 is used by the application to access the SD Card -> no way!

J19 would be used by the application if the .NGC file enables the AINSER or CV port -> potential conflicts as well.

 

Therefore I would propose to use J5C instead.

In many applications (e.g. MBSEQ V4) J28 of the LPC17 core is used as a replacement for J5C of the STM32 core anyhow, so why not using it for your special case as well?

Thanks, TK.

I'm glad I asked!

J5 has support routines in mios32_board.c which will make it pretty straight forward to implement.