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Topic: SPI conection on Due (Read 656 times) previous topic - next topic

robertocarlos

Which are the pins I should use for SPI comunication with arduino DUE? please specify all four wires for SCLK, MOSI, MISO and CS. I´m currently trying to conect an ADXL345 accelerometer to arduino DUE unsuccessfully using

10 for CS,
11 for SDA,
12 SDO and
13 SCL

pins. This work perfectly in my Arduino Duemilanove, but I need the 3 SPI conections (4 10 and 52)  capability of Due.

Thanks

Graynomad

#1
Jul 16, 2013, 01:02 am Last Edit: Jul 16, 2013, 01:11 am by Graynomad Reason: 1
Those signal names are not really SPI names, more a mix of I2C and SPI, are they from the ADXL345?

Anyway on the Due SPI is as follows

SCK - 76
MISO - 74
MOSI - 75
CS/SS - whatever pin you like. There are 2 dedicated slave select pins (D4/87 and D10/77) but I don't know if the SPI library uses them.

The pinout info is here

http://forum.arduino.cc/index.php?topic=132130.0

______
Rob
Rob Gray aka the GRAYnomad www.robgray.com

robertocarlos

Rob

thanks for answerring, I´ll try those pins.
In the picture is the accel that I´m using, ADXL345, so you can see the names of the conections.

One last thing, shouldn´t been 3 dedicated spi pins D4, D10 and D52?

thanks alot.

Roberto

Graynomad

Quote
and D52?

Yep. Missed that one.

Like I said though I'm not sure if the SPI lib uses them, I would assume not.

_____
Rob
Rob Gray aka the GRAYnomad www.robgray.com

gallegojm


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