Mbed / Mbed 2 deprecated SPI_HelloWorld_Mbed

SPI Hello World

Dependencies:   mbed

Fork of SPI_HelloWorld_Mbed by mbed official

main.cpp

Committer:
mbed_official
Date:
2013-02-12
Revision:
0:466ad3f38b6b

File content as of revision 0:466ad3f38b6b:

#include "mbed.h"
 
SPI spi(p5, p6, p7); // mosi, miso, sclk
DigitalOut cs(p8);
 
int main() {
    // Chip must be deselected
    cs = 1;

    // Setup the spi for 8 bit data, high steady state clock,
    // second edge capture, with a 1MHz clock rate
    spi.format(8,3);
    spi.frequency(1000000);
 
    // Select the device by seting chip select low
    cs = 0;
 
    // Send 0x8f, the command to read the WHOAMI register
    spi.write(0x8F);
 
    // Send a dummy byte to receive the contents of the WHOAMI register
    int whoami = spi.write(0x00);
    printf("WHOAMI register = 0x%X\n", whoami);
 
    // Deselect the device
    cs = 1;
}