mirror of https://github.com/qmk/qmk_firmware.git synced 2024-12-13 13:20:46 +00:00

History

Stefan Kerkmann 3f5dc47296 [Core] Use polled waiting on ChibiOS platforms that support it (#17607 ) * Use polled waiting on platforms that support it Due to context switching overhead waiting a very short amount of time on a sleeping thread is often not accurate and in fact not usable for timing critical usage i.e. in a driver. Thus we use polled waiting for ranges in the us range on platforms that support it instead. The fallback is the thread sleeping mechanism. This includes: * ARM platforms with CYCCNT register (ARMv7, ARMv8) this is incremented at CPU clock frequency * GD32VF103 RISC-V port with CSR_MCYCLE register this is incremented at CPU clock frequency * RP2040 ARMv6 port which uses the integrated timer peripheral which is incremented with a fixed 1MHz frequency * Use wait_us() instead of chSysPolledDelayX ...as it is powered by busy waiting now. * Add chibios waiting methods test bench		2022-07-11 15:17:05 +02:00
..
config.h	[Core] Use polled waiting on ChibiOS platforms that support it (#17607 )	2022-07-11 15:17:05 +02:00
readme.md	[Core] Add Raspberry Pi RP2040 support (#14877 )	2022-06-30 13:19:27 +02:00
rules.mk	[Core] Add Raspberry Pi RP2040 support (#14877 )	2022-06-30 13:19:27 +02:00

Raspberry Pi 2040 onekey

To trigger keypress, short together pins GP4 and GP5.

Double-tap reset to enter bootloader mode. Copy the built uf2 file to the device by dragging the file to the new USB disk.

Supported Hardware