circuitpython/supervisor/shared/usb
Scott Shawcroft 5bb8a7a7c6
Improve iMX RT performance
* Enable dcache for OCRAM where the VM heap lives.
* Add CIRCUITPY_SWO_TRACE for pushing program counters out over the
  SWO pin via the ITM module in the CPU. Exempt some functions from
  instrumentation to reduce traffic and allow inlining.
* Place more functions in ITCM to handle errors using code in RAM-only
  and speed up CP.
* Use SET and CLEAR registers for digitalio. The SDK does read, mask
  and write.
* Switch to 2MiB reserved for CircuitPython code. Up from 1MiB.
* Run USB interrupts during flash erase and write.
* Allow storage writes from CP if the USB drive is disabled.
* Get perf bench tests running on CircuitPython and increase timeouts
  so it works when instrumentation is active.
2023-03-14 12:30:58 -07:00
..
tusb_config.h refactor debug UART to console UART; get working on ESP32 2022-06-30 23:16:46 -04:00
usb_desc.c Implement safemode.py 2023-02-13 18:26:38 -05:00
usb_msc_flash.c fix ReloadException when in REPL 2022-03-16 12:36:52 -04:00
usb_vendor_descriptors.h style(swan_r5): pre-commit whitespace style changes 2021-09-28 18:52:03 -07:00
usb.c Improve iMX RT performance 2023-03-14 12:30:58 -07:00