File content as of revision 0:7d7bf32b3ba9:

#include "mbed.h"

SPI spi(p5, p6, p7); // mosi, miso, sclk
Serial pc(USBTX, USBRX);
DigitalOut cs(p8);

int main() {
    unsigned char  MSB,LSB;
    unsigned long  Address;
    unsigned char tempdata;
    unsigned char matrixdata[32];
    MSB = 0x31;
    LSB = 0x07;
    if(MSB >=1 && MSB <= 15 && LSB >=1 && LSB <= 94)
        Address =( (MSB - 1) * 94 + (LSB - 01))*32;
    else if(MSB >=16 && MSB <= 47 && LSB >=1 && LSB <= 94)
        Address =( (MSB - 16) * 94 + (LSB - 1))*32+43584;
    else if(MSB >=48 && MSB <=84 && LSB >=1 && LSB <= 94)
        Address = ((MSB - 48) * 94 + (LSB - 1))*32+ 138463;
    else if(MSB ==85 && LSB >=0x01 && LSB <= 94)
        Address = ((MSB - 85) * 94 + (LSB - 1))*32+ 246944;
    else if(MSB >=88 && MSB <=89 && LSB >=1 && LSB <= 94)
        Address = ((MSB - 88) * 94 + (LSB - 1))*32+ 249952;
    
    // Deselect the device
    cs = 1;
    // Setup the spi for 8 bit data, high steady state clock
    spi.format(8,3);
    spi.frequency(1000000); 
    
    // Select the device by seting chip select low
    cs = 0;
    spi.write(0x03);    // Read data byte
    Address =( (MSB - 1) * 94 + (LSB - 01))*32;
    spi.write(Address>>16 & 0xff);
    spi.write(Address>>8 & 0xff);
    spi.write(Address & 0xff);
    // Send a dummy byte to receive the contents of the WHOAMI register
    for(int i=0;i<32;i++)
    {
      tempdata=spi.write(0x00);
      matrixdata[i]=(255-tempdata);
      pc.printf("0x%x\r\n", tempdata);
      wait(0.01);
    }
    // Deselect the device
    cs = 1;
}