Diff: main.cpp

Revision:

0:ee6e5c60dd2d

Child:

1:1b05289d0bf5

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Feb 20 16:39:34 2018 +0000
@@ -0,0 +1,99 @@
+/******************************************************************************
+* 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 <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+DigitalOut SS(PC_7);
+
+SPI spi(PA_7, PA_6, PA_5);
+Serial pc(USBTX, USBRX);
+
+int main(void) {
+    SS = 1; 
+    
+    spi.format(16,0);
+    spi.frequency(1000000);
+    
+    SS = 0;
+    spi.write(0x0C01); //normal operation
+    SS = 1;
+    
+    SS = 0;
+    spi.write(0x090F); //decode to bits 0:3
+    SS = 1;
+    
+    SS = 0;
+    spi.write(0x0F00); //set to normal mode
+    SS = 1;
+    
+    SS = 0;
+    spi.write(0x0A0F); //intensity set to max
+    SS = 1;
+    
+    SS = 0;
+    spi.write(0x0B04); //display digits 0:4
+    SS = 1;
+    
+    SS = 0;
+    spi.write(0x0100); //set digit 1 to 0
+    SS = 1;
+    
+    SS = 0;
+    spi.write(0x0200); //set digit 2 to 0
+    SS = 1;
+    
+    SS = 0;
+    spi.write(0x0300); //set digit 3 to 0
+    SS = 1;
+    
+    SS = 0;
+    spi.write(0x0400); //set digit 4 to 0
+    SS = 1;
+    
+    SS = 0;
+    spi.write(0x0500); //set digit 5 to 0
+    
+    float command = 0x0100;
+    char input[4];
+    char command_text[10] = "0x0";
+    while(1) {
+        pc.printf("Select a digit between 0 and 9999:\n");
+        input = getchar();
+        while (input < 48 or input > 57) { //ask for input until 0-9 is selected
+            pc.printf("Select a digit between 0 and 9999:\n");
+            scanf("%d", &input);
+        }
+        
+        command_text[3] = place + '0';
+        command_text[4] = '0';
+        command_text[5] = input;
+        
+        command = atof(command_text); //converts string to float
+        
+        pc.printf("command: %s\n", command_text);
+        
+        
+        SS = 0;
+        spi.write(command);
+        SS = 1;
+        //pc.printf("command: &f\n", commmand);
+    }
+    /*
+    SS = 0;
+    spi.write(0x0100); //set digit 0 to 0
+    SS = 1;
+    */
+}
+    
\ No newline at end of file