#Arduino mega 2560 spi pins code#

When I try to use SPI while PIN 53 configured as Digital Output, Matlab gives me an error 'Board Mega2560, SPI communications require pins D53(MOSI) which is currently in use. Im currently using a custom PCB, but this also happened when testing with an Arduino Uno R3 on a breadboard. While working on a new revision of a project, I moved from an Arduino Uno to an Arduino Mega. According to Arduino, the PINs for SPI are 50(MISO), 51(MOSI), 52(SCK) and 53(SS), this PIN 53 is the slave select pin and is only needed when I am using my Arduino as an SPI slave, when I am not using my Arduino as an SPI slave (like in my case) I can use PIN 53 as a constant digital output. Daisy Chaining SPI on the Arduino Mega 2560. I have installed the MATLAB Support Package for Arduino Hardware so that I can control my Arduino through the GUI I have created in Matlab.

#Arduino mega 2560 spi pins code#

Using modified code from the sparkfun can. I simply clipped the header pins at location 10,11,12,13 and wired in 50,51,52, and 53 from the MEGA. Well heres the thing, it does work when wired like this. On the Mega, the hardware SS pin, 53, is not used to. You need to modify the shield, if it doesnt use SPI via the ICSP connector, like the Ethernet shield does. This is on digital pins 11, 12, and 13 on the Uno and pins 50, 51, and 52 on the Mega. Mini USB Host Shield SPI Interface For Arduino Atmega328p MEGA 2560 Duemilanove Expansion Board Support Google ADK PackageOther iscustomizedYes Model Number. I am trying to control 11 SPI based Digital Potentiometers (AD5292) through Arduino Mega 2560 which is in turn controlled by Matlab. A user asks about the SPI pins on the Arduino Mega 2560 board and the Arduino Uno MP3 Player Shield. What about the official reference page for the Ethernet / Ethernet2 libraries (Ethernet - Arduino Reference): Arduino communicates with the shield using the SPI bus.