When will GD32E230C be supported?

[NathanKuo0821]

I have been waiting for GD32E230C to support Arduino , Is there a plan to support? schedule? Very thanks.

[djix123]

There's also a fundamental bug in getTimerUpIrq in regards to detecting which timers exist and returning the interrupt based on that, it uses a #ifdef on a enum type value... gotta fix those.

Yes, commenting out && defined(TIMER2_IRQn) in timer.c fixed the problem.

[djix123]

This is my code (very simple):

HardwareTimer Timer_0(TIMER2);

static volatile bool state = false;

void setup_hardwaretimer(void)
{
    pinMode(LED, OUTPUT);

    Timer_0.setPeriodTime(500, FORMAT_MS);
    Timer_0.attachInterrupt(periodcallback);
    Timer_0.start();
}

void loop_hardwaretimer(void)
{

}

void periodcallback(void)
{
  digitalWrite(LED, state ? HIGH : LOW);
  state = !state;
}

[djix123]

If I switch HardwareTimer Timer_0(TIMER2) to HardwareTimer Timer_0(TIMER0) the above example no longer works.

[maxgerhardt]

Are you using the very latest Arduino core code from this repo?

[djix123]

Could update again to see if 8fd01ef fixes the issue? You should be using code like https://github.com/CommunityGD32Cores/gd32-pio-projects/blob/main/gd32-arduino-pwm-out/src/main.cpp together with a PWM enabled pin as listed in e.g. https://github.com/CommunityGD32Cores/ArduinoCore-GD32/blob/main/variants/GD32E230F8_GENERIC/PeripheralPins.c#L130-L148

PWM confirmed as working. I have an LED on PB1 which is a pin linked to a timer. By varying the period and duty cycle I can dim the LED by directly driving it, without the captureCompareCallback attached.

Also tried with the PWM on PA6 and the captureCompareCallback attached. That works as well.

[djix123]

Are you using the very latest Arduino core code from this repo?

I am, yes.

[maxgerhardt]

Timer0 is special with TIMER0_BRK_UP_TRG_COM_IRQn interrupt that isn't yet correctly handled, let me try a fix.

[maxgerhardt]

https://github.com/CommunityGD32Cores/ArduinoCore-GD32/commit/f8dd8513288813c11716b0861b08eec594947b2d tries to fix this, can you retest?

[djix123]

f8dd851 tries to fix this, can you retest?

Yes, thanks. That fixes it. Working now.