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Make waveform generator a NMI to run always, increase accuracy #5578

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Merged
merged 12 commits into from
Jan 11, 2019
Merged

Make waveform generator a NMI to run always, increase accuracy #5578

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c43b321
Make waveform generator a NMI to run always
earlephilhower Jan 3, 2019
99af25c
Move to a lockless waveform generator
Jan 4, 2019
78fba4c
Optimize IRAM and CPU usage in IRQ
earlephilhower Jan 5, 2019
923f2f4
Fix boolean/bitmask typo in starting waveform
earlephilhower Jan 5, 2019
409fc91
Add'l testing and tweaking at 160 and 80mhz
earlephilhower Jan 6, 2019
1d2c939
Avoid WDT errors, optimize pin scans
earlephilhower Jan 7, 2019
5c866c5
Merge branch 'master' into wvftonmi
earlephilhower Jan 7, 2019
ae4f704
Merge branch 'master' into wvftonmi
earlephilhower Jan 7, 2019
91bec0b
Clean up format/comment, remove delay() in stop
earlephilhower Jan 8, 2019
96cb073
Merge branch 'master' into wvftonmi
earlephilhower Jan 8, 2019
36a5487
Merge branch 'master' into wvftonmi
earlephilhower Jan 9, 2019
38658f5
Merge branch 'master' into wvftonmi
devyte Jan 11, 2019
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7 changes: 4 additions & 3 deletions cores/esp8266/core_esp8266_waveform.c
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Original file line number Diff line number Diff line change
Expand Up @@ -38,6 +38,7 @@
*/

#include <Arduino.h>
#include "ets_sys.h"
#include "core_esp8266_waveform.h"

// Need speed, not size, here
Expand Down Expand Up @@ -130,15 +131,15 @@ static uint32_t lastCycleCount = 0; // Last ESP cycle counter on running the int

static void initTimer() {
timer1_disable();
timer1_isr_init();
timer1_attachInterrupt(timer1Interrupt);
ETS_FRC_TIMER1_INTR_ATTACH(NULL, NULL);
ETS_FRC_TIMER1_NMI_INTR_ATTACH(timer1Interrupt);
lastCycleCount = GetCycleCount();
timer1_enable(TIM_DIV1, TIM_EDGE, TIM_SINGLE);
timerRunning = true;
}

static void ICACHE_RAM_ATTR deinitTimer() {
timer1_attachInterrupt(NULL);
ETS_FRC_TIMER1_NMI_INTR_ATTACH(NULL);
timer1_disable();
timer1_isr_init();
timerRunning = false;
Expand Down