There is a manual for the C compiler and the assembler: http://processors.wiki.ti.com/index.php/PRU-ICSS
The links are on the right side of the page. Some of the PRU hardware specific registers are accessed via a large union in a header file. It uses structs with "bit fields" so you can easily access individual bits in the register. Look for a header file called pru_cfg.h. But specifically to your question, I'm still trying to figure out how the PRU input and output registers R30 and R31 are done in C, as I don't see those called out in the header file (in information overload at this point!). Regarding the scratchpad, I believe it can't be accessed via C. However, you can embed assembler codes into C source code. If you go here: https://training.ti.com/sitara-processors-building-blocks-for-pru-development-summary Download the firmware development slides and look at page 8. Regards, Greg -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
