ghhhhhk8899jj

4 ms·

1. 1.▲
   by ghhhhhk8899jj 5y ago

   Making your own custom USB device has quite a large upfront cost since you need to buy a PID/VID.
2. 2.▲
   by ghhhhhk8899jj 5y ago

   volatile does not imply compiler fence on gcc, so this code has a race condition when updating read/write_position, you need compiler barriers here >data[write_position] = value; >COMPILER_BARRIER(); // __asm__ volatile
3. 3.▲
   by ghhhhhk8899jj 5y ago

   There's no reason to assume that code would contain fewer bugs.
4. 4.▲
   by ghhhhhk8899jj 5y ago

   For now... Wait a few months/a year and they will find a reason to "take advantage" of that increase in performance and slow it back down again.