Multiple peripheral configuration for a single board

[ofauchon]

Hi.

I have several RIOT-OS application that need different peripheral configuration (for a same board) eg:

• One board configuration that uses two serial port and PWM for a RIOT application
• One board configuration that uses three serial ports for another RIOT application

There can be conflicts between the GPIOs (ex: third serial port pins vs PWM pins)

What is the correct way to handle multiple peripheral configuration for the same board ?

Should I :

1/ Duplicate board ( board/myboard_3uart and board/myboard_2serial_1pwm )
2/ Use #ifdefs GPIO_PROFILE_X in a local board/xxxxxx/include/periph_conf.h to switch peripheral config at compile time ?

Thanks for your help

Olivier

[MrKevinWeiss]

I believe the configuration task force should be able to solve this with board configuration files but that seems to be a ways away.

Ultimately it is your choice how to do it. In RIOT the boards/esp32-olimex-evb/include/periph_conf.h has an #ifdef

#ifndef ADC_GPIOS
#if MODULE_OLIMEX_ESP32_GATEWAY
#define ADC_GPIOS { GPIO32, GPIO35, GPIO36, GPIO39 }
#else /* MODULE_OLIMEX_ESP32_GATEWAY */
#define ADC_GPIOS { }
#endif /* MODULE_OLIMEX_ESP32_GATEWAY */
#endif /* ADC_GPIOS */

I personally would prefer creating my own board file and playing around with it. As long as it is only for you it is only up to you.

[stale]

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