File content as of revision 13:8936b2f64aa2:

/******************************************************************************
* EECS 397
*
* Assignment Name: Lab 4: display_test2
* 
* Authors: Sam Morrison and Phong Nguyen 
*
* Purpose: Configures the board for 5-digit display
*
* Last Modified: 02/19/2018
*
******************************************************************************/
#include "mbed.h"
#include "io_pins.h"
#include "display.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>

int data_length = 16;
int frequency = 1000000;

DigitalOut SS(CHIP_SELECT);
SPI spi(MOSI, MISO, SCLK);
Serial pc(USBTX, USBRX);

int main(void) {
    initial_setup(SS, data_length, frequency);
    char bcd[4];
    
    //float command = 0x0100;
    int input;
    //char command_text[10] = "0x0";
    while(1) {
        pc.printf("Select a digit between 0 and 9999:\n");
        scanf("%d", &input);
        
        /*
        char cur_char = getchar();
        while (cur_char < 48 or cur_char > 57) { //ask for input until 0-9 is selected
            pc.printf("Select a digit between 0 and 9:\n");
            cur_char = getchar();
        }
        */
        
        while (input < 0 or input > 9999) { //ask for input until 0-9999 is selected
            pc.printf("You entered a number out of range\n");
            pc.printf("Select a digit between 0 and 9999:\n");
            scanf("%d", &input);
        }
        
        printf("you entered: %d\n", input);
        bin2bcd_array(input, bcd);
 
        /*
        for (int i = 0; i < 4; i++) {
            pc.printf("bcd: %d\n", bcd[i]);
        }
        */
        
        send_command_to_display(bcd);
    }
}