Arduino IDE Compilation Error

[UoGTFranklin 0 1 1 1]

Hello,

I have an example code from Adafruit for an OLED display which is originally intended for Arduino UNO. When I compile in the Arduino IDE for the UNO, the code compiles correctly. However when I compile the same code for the Spresense I get a compilation error:

*Arduino: 1.8.16 (Windows 10), Board: "Spresense, MainCore, 768 KB (Default), Disabled, 115200"

In file included from C:\Users\TOMFRA~1\AppData\Local\Temp\arduino_modified_sketch_537912\BreakoutSSD1331.ino:12:

C:\Users\tomfranklin\Documents\Arduino\libraries\SdFat_-_Adafruit_Fork\src/SdFat.h:59:32: error: 'SS' was not declared in this scope

59 | bool begin(SdCsPin_t csPin = SS) {

exit status 1*

Is anyone aware of a reason why the Spresense compiler error would throw an error like this if the code compiles correctly for the UNO?

Thanks

[dshilov 1 1]

@UoGTFranklin-0-1-1-1 said in Arduino IDE Compilation Error:

BreakoutSSD1331

Looking at the sketch you used as it is posted on GitHub, it utilizes Adafruit libraries for a lot of hardware setup. While compatible with Arduino Uno, Adafruit libraries likely aren't compatible with Spresense Arduino development.

[UoGTFranklin 0 1 1 1]

@dshilov-1-1 Hi, thanks for your feedback. Are you able to advise specifically which parts of the libraries aren't compatible and if there is a way that I can handle this?

Thanks

[dshilov 1 1]

@UoGTFranklin-0-1-1-1 You can define the SS pin before including the SdFat library. You can define the SS pin as a constant, for example:

const uint8_t SS = 46;

The SS pin number to the chip select pin of the SD card on the Spresence board is pin 46.