Fix delayMicroseconds() to use 64bit period
fixes: https://github.com/espressif/arduino-esp32/issues/5000
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@ -160,15 +160,15 @@ void delay(uint32_t ms)
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void ARDUINO_ISR_ATTR delayMicroseconds(uint32_t us)
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{
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uint32_t m = micros();
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uint64_t m = (uint64_t)esp_timer_get_time();
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if(us){
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uint32_t e = (m + us);
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uint64_t e = (m + us);
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if(m > e){ //overflow
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while(micros() > e){
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while((uint64_t)esp_timer_get_time() > e){
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NOP();
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}
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}
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while(micros() < e){
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while((uint64_t)esp_timer_get_time() < e){
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NOP();
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}
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}
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