soft UART implementation on the AM335x PRU

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1

Hello,

I am still a newbie to PRU development, and I am trying to use the 9 bits UART capability of the UART PRU firmware and I have a couple of questions

1- in the code composer studio,do I use the PRU compiler or the ARM compiler ?
2- do i have to use sys/bios when using the soft implementatio of the UART ? if so how to upload the generated file to the card without an emulator, ( I used FTP to deploy .out files to the beaglebone black and then coppying the firmware to the remoteproc when getting introduced to the PRU development)

2

I’ve just posted v2 of the PRU Cookbook[1]. It should help with some of your questions.

I suggest doing all the development in cloud9 on the Beagle. the PRU compiler is already installed on the current images.

–Mark
[1] https://github.com/MarkAYoder/PRUCookbook

3

Thank you Mark,

your work is really thorough,
I took a look on the Debugging and Benchmarking section especially UART, but unfortunately HW_uart doesn’t support 9 bit characters transfer
but I found out that for Q1 - I need to find an exemple from the RTOS sdk and modify it to my needs.

– Aouainia