* 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 |
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|---|---|---|
| .. | ||
| eeprom | ||
| flash | ||
| ps2 | ||
| vendor/RP/RP2040 | ||
| wear_leveling | ||
| analog.c | ||
| analog.h | ||
| audio_dac.h | ||
| audio_dac_additive.c | ||
| audio_dac_basic.c | ||
| audio_pwm.h | ||
| audio_pwm_hardware.c | ||
| audio_pwm_software.c | ||
| i2c_master.c | ||
| i2c_master.h | ||
| serial.c | ||
| serial_protocol.c | ||
| serial_protocol.h | ||
| serial_usart.c | ||
| serial_usart.h | ||
| spi_master.c | ||
| spi_master.h | ||
| uart.c | ||
| uart.h | ||
| usbpd_stm32g4.c | ||
| ws2812.c | ||
| ws2812_pwm.c | ||
| ws2812_spi.c | ||