Sergey Vlasov 627ceebef3 ws2812: Fix number of nops for AVR at 8 MHz (#9559) ... * ws2812: Fix number of nops for AVR at 8 MHz When trying to calculate the number of nops for AVR running at 8 MHz, the value of `w3` is expected to be negative; however, because `F_CPU` is defined in tmk_core/avr.mk with the `UL` suffix, the preprocessor performs its calculations using `unsigned long`, getting a very large positive number instead of the expected negative number; this then results in generating code with a huge number of nops. Fix the broken calculations by performing a comparison before subtraction, so that the unsigned number wraparound does not occur. The keyboard which triggers the problem is `handwired/promethium`; the buggy code silently compiles, but the resulting timings would be completely wrong. * ws2812: Clean up the code after the 8 MHz fix Remove old code which was unsuccessfully trying to clamp negative w1, w2 and w3 values to 0, and set w1_nops, w2_nops and w3_nops directly.		2021-02-09 08:33:04 +11:00
..
analog.c
analog.h
apa102.c
apa102.h
glcdfont.c
hd44780.c
hd44780.h	Change include guards in tmk_core/ and drivers/ to pragma once (#11240)	2020-12-26 15:56:11 +11:00
i2c_master.c
i2c_master.h	Change include guards in tmk_core/ and drivers/ to pragma once (#11240)	2020-12-26 15:56:11 +11:00
i2c_slave.c
i2c_slave.h	Change include guards in tmk_core/ and drivers/ to pragma once (#11240)	2020-12-26 15:56:11 +11:00
serial.c	2020 November 28 Breaking Changes Update (#11053)	2020-11-28 12:02:18 -08:00
serial.h
spi_master.c	Fix error handling in SPI master. (#11122)	2020-12-06 12:50:02 +11:00
spi_master.h
ssd1306.c	Fix ssd1306 compilation on avr-gcc 10 (#9267)	2020-09-17 10:42:24 +10:00
ssd1306.h	Change include guards in tmk_core/ and drivers/ to pragma once (#11240)	2020-12-26 15:56:11 +11:00
ws2812_i2c.c
ws2812.c	ws2812: Fix number of nops for AVR at 8 MHz (#9559)	2021-02-09 08:33:04 +11:00