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orgua / shepherd

Synchronized Energy Harvesting Emulator and Recorder
MIT License
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use crosstool-ng & regenerate #10

Closed fedy0 closed 2 years ago

fedy0 commented 2 years ago

@orgua I have been thinking about regenerating the toolchain we've been using to see if some of the errors (here and there) that seem internal to the compiler will reduce. I've little experience with crosstool-ng. Do I try it? I'm asking before hand because it takes a while to generate the toolchain. What do you think?

orgua commented 2 years ago

Just for reference: you are talking about the c-code for the PRUs on the beaglebone.

We are currently using two different cross-compilers (TI's CGT and GCC with PRU-Extension) for the PRU-Code. One compiler (cgt) has trouble calculating correct results with u64, the other currently produces non-optimal code and therefore overflows the program memory. Additionally we use a basic makefile, comparable to a bash-script, to feed the compiler. That's our current "chain of tools".

If you know a way to get rid of these constraints go for it. It should be a good exercise to learn more about embedded software development.

orgua commented 2 years ago

ok, closing this. CGT works for now and GCC saw big improvements lateley