kicad-developers team mailing list archive

[Ouabache Designworks <z3qmtr45@xxxxxxxxx>]

On Sun, Feb 4, 2018 at 7:29 AM, Kevin Cozens <kevin@xxxxxxxxx> wrote:

> On 2018-02-04 05:53 AM, Simon Richter wrote:
>
>> On 30.01.2018 16:01, Augusto Fraga Giachero wrote:
>>
>> I've been designing schematics with some stm32 parts using the standard
>>> Kicad libraries, and a lot of these microcontrollers has 10+ functions
>>> multiplexed in each I/O pin.
>>>
>> [snip]
>
>> That is one of the reasons why I started on the pin table.
>>
>
> Support for multifunction pins would be nice to have. I have seen a
> similar problem with the ATMEL AVR parts in the libraries. The symbols are
> very wide so that all the pin functions can be listed for each pin.
>
> --
>

With todays chips there is simply no room for all pin functions. I get by
simply with those functions that are active during the chips power-on
Reset. With FPGAs those function names come from the design so
you have to customize the symbol for each bit image and forget about doing
a large chip in a single symbol, partial symbols are the norm.

John Eaton