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Better timings for WS2812 (measured 345ns/695ns, instead of 340ns/600ns)

This commit is contained in:
Thomas Soëte 2015-11-08 22:45:12 +01:00
parent b701fe36aa
commit c2f12a3b05
1 changed files with 2 additions and 2 deletions
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4
app/modules/ws2812.c
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@ -31,8 +31,8 @@ static void ICACHE_RAM_ATTR ws2812_write(uint8_t pin, uint8_t *pixels, uint32_t
pixel = *p++; pixel = *p++;
mask = 0x80; mask = 0x80;
start_time = 0; start_time = 0;
t0h = (1000 * system_get_cpu_freq()) / 3333; // 0.30us (spec=0.35 +- 0.15) t0h = (1000 * system_get_cpu_freq()) / 3526; // 0.35us (spec=0.35 +- 0.15)
t1h = (1000 * system_get_cpu_freq()) / 1666; // 0.60us (spec=0.70 +- 0.15) t1h = (1000 * system_get_cpu_freq()) / 1591; // 0.70us (spec=0.70 +- 0.15)
ttot = (1000 * system_get_cpu_freq()) / 800; // 1.25us (MUST be >= 1.25) ttot = (1000 * system_get_cpu_freq()) / 800; // 1.25us (MUST be >= 1.25)
while (true) { while (true) {