Chibios ADC setup for ATSAM3S

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admatthews
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Chibios ADC setup for ATSAM3S

Postby admatthews » Wed Mar 13, 2019 2:03 am

This is my first attempt at using ChibiOS (any RTOS for that matter), so please bare with me. I am looking for support on how to get the ADC configured to simply read the voltage of a proximity sensor. I am using a Matrix Creator board, which contains a ATSAM3S2C MCU running ChibiOS (kernel 2.4.2). I have been digging through the source files and found the adc_lld template files. Do I need to write my ads_lld.c file for my specific MCU? Or Does ChibiOS already have some code developed to setup the ADC? Any help is greatly appreciated!

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Giovanni
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Re: Chibios ADC setup for ATSAM3S

Postby Giovanni » Wed Mar 13, 2019 8:31 am

Hi,

That is a quite old ChibiOS version, currently there is no support for SAM3S and I was not aware that somebody created a port.

Creating an HAL is a non trivial effort but you are correct, you need to provide the LLDs to make driver works. There are templates under /os/hal/templates, you may use the STM32 port as a reference /os/hal/ports/STM32/LLD.

Giovanni


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