Revert recent change that is the most likely cause of reported PWM frequency drop regression.

dok-net · dok-net · commit fe5a791cf71d · 2020-05-09T02:51:12.000+02:00
diff --git a/cores/esp8266/core_esp8266_waveform.cpp b/cores/esp8266/core_esp8266_waveform.cpp
@@ -408,8 +408,7 @@ static ICACHE_RAM_ATTR void timer1Interrupt() {
 
       if (static_cast<int32_t>(wave.nextEventCcy - isrTimeoutCcy) >= 0) {
         busyPins &= ~(1UL << pin);
-        // join events below performance threshold apart
-        if (static_cast<int32_t>(waveform.nextEventCcy - wave.nextEventCcy) > IRQLATENCYCCYS) {
+        if (static_cast<int32_t>(waveform.nextEventCcy - wave.nextEventCcy) > 0) {
           waveform.nextEventCcy = wave.nextEventCcy;
           waveform.nextPin = pin;
         }

Original file line number	Diff line number	Diff line change
`@@ -408,8 +408,7 @@ static ICACHE_RAM_ATTR void timer1Interrupt() {`
`408`	`408`
`409`	`409`	`if (static_cast<int32_t>(wave.nextEventCcy - isrTimeoutCcy) >= 0) {`
`410`	`410`	`busyPins &= ~(1UL << pin);`
`411`		`- // join events below performance threshold apart`
`412`		`- if (static_cast<int32_t>(waveform.nextEventCcy - wave.nextEventCcy) > IRQLATENCYCCYS) {`
	`411`	`+ if (static_cast<int32_t>(waveform.nextEventCcy - wave.nextEventCcy) > 0) {`
`413`	`412`	`waveform.nextEventCcy = wave.nextEventCcy;`
`414`	`413`	`waveform.nextPin = pin;`
`415`	`414`	`}`