I have some preferences (and pet peeves) from writing software to control media and display devices using RS232. Depending on your hardware, some of these may not apply: I think it’s a good idea to make your protocol more friendly for automation. If you need an interactive interface (command line or other), build it separately … Read more
Take a look at the DWT_CYCCNT register defined here. Note that this register is implementation-dependent. Who is the chip vendor? I know the STM32 implementation offers this set of registers. This post provides instructions for using the DWT Cycle Counter Register for timing. (See the post form 11 December 2009 – 06:29 PM) This Stack … Read more
General list: Make sure that you have the compiler and linker debug options disabled Compile and link with all size options turned on (-Os in gcc) Run strip on the executable Generate a map file and check your function sizes. You can either get your linker to generate your map file (-M when using ld), … Read more
I would use HDLC. I have had good luck with it in the past. I would for a point to point serial just use the Asynchronous framing and forget about all of the other control stuff as it would probably be overkill. In addition to using HDLC for the framing of the packet. I format … Read more
Integer Square Roots by Jack W. Crenshaw could be useful as another reference. The C Snippets Archive also has an integer square root implementation. This one goes beyond just the integer result, and calculates extra fractional (fixed-point) bits of the answer. (Update: unfortunately, the C snippets archive is now defunct. The link points to the … Read more