ESP32 compilation error

1

Hi I’m trying the smartmatrix libraries but I always get this error:
C:\Users\House\Documents\Arduino\libraries\SmartMatrix3\src/SmartMatrix_Impl.h:26:24: fatal error: DMAChannel.h: No such file or directory

forwarding with arduino using esp32 dev module in the examples I find it as incompatible …
Where am I doing wrong?
thanks
Rocco.

2
3

Hello Louis,

i used the teensylc branch with MultiRowRefreshMapping.ino as you descripted above.
Looks like:
#include <SmartMatrix3.h>
|

  • #include “SmartMatrix_Impl.h”
    |
    • #include “DMAChannel.h” (this h-file is tennsy specific, isn’t it?)
      and get the same compile error: DMAChannel.h: No such file or directory
      There is no ESP32 specific strapping for the includes.
      Many thanks for another help,
      Andreas
4

Pretty sure you have the main SmartMatrix Library and not “teensylc”, check the directory that’s being included when you compile

5

Hello Louis,

i used the Hub75 branch, this workes fine! Also on master there is no ESP32 solution available (as far as i could see).
I have the ESP_V0 Shield and this works pretty stable.
Many thanks for your good work, i wished i could program as good as you…
What do you think about an ESP32 branch or merge all changes back to master?
This would make it easier for newbies…

6

he’s working on it, but for now you do need to use the teensylc branch