Flowcode Support Board

Hi

I can't compile the program. I found that if I remove the timer component the program compiles.

Kind regards

Hi,
Looks like the Timer component is not yet compatible with ESP.
Can I suggest that you use a Timer Interrupt instead.
That can then call a macro/function that increments global variables to give you your timed events.

Hi Leigh

Yes, now it's working!

Can you explain the timer period parameter (256 and 1000) what it refers to?

Now I have set 256 and seconds

Kind regards

Glad you have it working
It's a generic drop box, but you can enter any value for the time period (time between interrupts), as you have found.

Thanks Leigh

Now i've another question

I am trying to use the esp32 module to create a small test station. I need to generate a sine wave and I succeeded.

the problem is that the output is not stable and therefore every few seconds I find a glitch on the sinus. I tried to generate the wave in different ways but even putting it in the main loop I always have the same problem.

It almost seems that the output of the dac stops ...

I think the problem here could be that ESP runs an RTOS.
That's not ideal for signal generation due to task scheduling.
I think that DMA might be possible, but I've not tried it.

Do you think we can test for DMA channels?

Hello,

What are you using the output the sine wave, is it the internal DAC or PWM or is it via an external comms device?

Hi Ben

Internal Dac!

Kind regards

I have a strange problem with esp32 boards.

It looks like they are programmed but fail to boot ...

I have 3 boards (1 wroom-32 and 2 wroom-32d) and all three are doing the same joke

The version is esp32_devkitc_v4, clicking the two physical buttons nothing happens.