About cpmh1

cpmh1 · 2014-09-09

Posted on September 10, 2014 at 00:55Using STM32Cube_FW_F4_V1.1.0 on STM32F401 I am trying to maximize data from host to stm on FS bulk endpoint. Using a 64 byte Rx buffer, I can only get about 5 MBps, as the interrupt and setup for next Rx buffer ...

cpmh1 · 2014-09-10

Posted on September 11, 2014 at 01:58yeah, I doubt the function optimized out too, *but* in a project I was on that started using gcc 4.7, we found that ''volatile'' was being ignored (not a bug, as a compiler policy!) and it broke the app. with al...

cpmh1 · 2014-09-10

Posted on September 11, 2014 at 01:39Thanks Tsuneo,The short/ZLP packet is a great / easy solution, and is what I was using before being informed by my client that this code has to work with older hosts (embedded Linux boards) that can't be updated ...

cpmh1 · 2014-09-09

Posted on September 10, 2014 at 00:59 Doubt this will helpe, but depending on the compiler flags, etc. the call the function in the loop might be inlined and the loop optimized out. I would suggest using a loop more like volatile int stat; do { ...

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