![]() I was wondering in this piece of code that so wonderfully works,if I can set the clock frequency.And if yes how,because I modifed this code and used it for the ESP32 from Adafruit to input data as a MISO. It is my first post here,so excuse me for any mistakes. ![]() SPI.transfer((char)(EEPROM_address)) //send LSByte addressĭata = SPI.transfer(0xFF) //get data byteĭigitalWrite(SLAVESELECT,HIGH) //release chip, signal end transferĮeprom_output_data = read_eeprom(address) SPI.transfer((char)(address)) //send LSByte address Such an error can occur if you fail to put a comment or write a function with an error, etc. For example, you can forget to declare the x variable and incorrectly write the analogRead function. Try this modified code : #include įor (int I=0 I>8)) //send MSByte address first The error Arduino was not declared in this scope occurs when random or unnecessary characters appear in a sketch. You are trying to configure the Atmega328p SPI register on the Arduino Zero, which can't work.Īrduino provide a SPI library that is doing all of the register's stuff.
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