Missing code in MKRRGB.cpp

[scottha]

The sketches that demonstrate code used with the MKRRGB board fail to compile due to missing symbol definitions used in the SPI_MATRIX call on line 25 of code in MKRRGBMatrix.cpp. There are no definitions of the symbols sercom0, SPIPAD)_SCK_1, and SERCODE_RX_PAD_0.

[per1234]

These are declared in the Arduino SAMD Boards core and the SAMD board variants:

• https://github.com/arduino/ArduinoCore-samd/blob/46f6cad46b55aab1e6081bc1bb60e4fd66dad4c0/variants/mkrzero/variant.cpp#L171
• https://github.com/arduino/ArduinoCore-samd/blob/46f6cad46b55aab1e6081bc1bb60e4fd66dad4c0/cores/arduino/SERCOM.h#L104
• https://github.com/arduino/ArduinoCore-samd/blob/46f6cad46b55aab1e6081bc1bb60e4fd66dad4c0/cores/arduino/SERCOM.h#L75

This library was written specifically for the SAMD architecture of the Arduino MKR, Nano 33 IoT, and Zero boards. If you check the error output, you'll see a helpful warning:

WARNING: library Arduino_MKRRGB claims to run on samd architecture(s) and may be incompatible with your current board which runs on avr architecture(s).

[scottha]

Ah. This wasn't at all clear from the web site. I thought the boards could be used by attaching them to an interface shield and then plugging that shield onto an Uno or Mega or whatever. I very much appreciate your efforts to clarify. I couldn't make sense of that error message.

[scottha]

Thank you very much for your explanation. I wasn’t aware that there was this variant, I very much appreciate your time spent on this, although I have 6 books on Arduino, the documentation still seems to be lacking. I’ve spent 4 days trying to figure out that compile error and what was causing it. Again, thank you.

On May 15, 2020, at 7:39 AM, per1234 notifications@github.com wrote:

These are declared in the Arduino SAMD Boards core and the SAMD board variants:

https://github.com/arduino/ArduinoCore-samd/blob/46f6cad46b55aab1e6081bc1bb60e4fd66dad4c0/variants/mkrzero/variant.cpp#L171 https://github.com/arduino/ArduinoCore-samd/blob/46f6cad46b55aab1e6081bc1bb60e4fd66dad4c0/variants/mkrzero/variant.cpp#L171 https://github.com/arduino/ArduinoCore-samd/blob/46f6cad46b55aab1e6081bc1bb60e4fd66dad4c0/cores/arduino/SERCOM.h#L104 https://github.com/arduino/ArduinoCore-samd/blob/46f6cad46b55aab1e6081bc1bb60e4fd66dad4c0/cores/arduino/SERCOM.h#L104 https://github.com/arduino/ArduinoCore-samd/blob/46f6cad46b55aab1e6081bc1bb60e4fd66dad4c0/cores/arduino/SERCOM.h#L75 https://github.com/arduino/ArduinoCore-samd/blob/46f6cad46b55aab1e6081bc1bb60e4fd66dad4c0/cores/arduino/SERCOM.h#L75 This library was written specifically for the SAMD architecture of the Arduino MKR, Nano 33 IoT, and Zero boards. If you check the error output, you'll see a helpful warning:

WARNING: library Arduino_MKRRGB claims to run on samd architecture(s) and may be incompatible with your current board which runs on avr architecture(s). — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/arduino/Arduino/issues/10212#issuecomment-629187422, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAZPLAKJN6QZYOOSNAB7L5DRRUSXXANCNFSM4NBO7HMQ.