added commenting, removed deprecated functions

[cortex-from-scratch] / main.c

diff --git a/main.c b/main.c
index da28711..221d7d6 100644 (file)
--- a/main.c
+++ b/main.c
@@ -5,7 +5,7 @@
  * Initial version 
  * 
  * $DESCRIPTION$
- * Main intialize basic components of the boards
+ * Main initialize basic components of the board
  * and jumps to a terminal
  *
  * */
@@ -24,77 +24,50 @@
 #include <drivers/uart.h>
 #include <drivers/led.h>
 #include <drivers/tm1637.h>
-#include <drivers/at24c.h>
+//#include <drivers/at24c.h>
 #include <drivers/tsensor.h>
 
-//void sleep() {
-//
-//     __asm__ __volatile__("wfe");
-//
-//}
-
 void main()
 {
+
+       /* Initialize the clock system, */
        clock_init();
+
+       /* Setup the interrupt vector table */
        ivt_init();
+
+       /* Initialze basic input and output over serial */
        uart_init();
-//     cputs("ROBSYS LOADING...\n");
-       //systick_init();
-//     tsensor_output(0xFFFF, 0x7FFF);
 
+       /* Cortex M* integrated systick, can be replaced
+        * by the more accurate RTC.
+       systick_init();
+       */
+
+       /* Set up a very small libc library */
        init_printf(NULL, putc);
-       // SPEED_TEST
-/*     cputs("START TEST (8MHz) \n");
-       int a;
-       for (int i = 0; i < 20000000; i++) {
-               a + 2;  
-       }
-       a = 0;
-       cputs("END TEST\n");
-       
-       //! 
-       clock_init();
 
-       cputs("START TEST (??MHz) \n");
-       for (int i = 0; i < 20000000; i++) {
-               a + 2;  
-       }
-       cputs("END TEST\n"); */
+       /* Display some basic info at startup */
        sysinfo();
 
-
-//     tsensor_input(5000);
-//     run();
-
+       /* On board LEDs*/
        led_init();
-//     eeprom_at24c_init();
-//     eeprom_test();
-       tm1637_init();
 
+       /* Real time clock */
        rtc_init();
 
+       /* Eeprom Driver
+       eeprom_at24c_init();
+       eeprom_test();
+       */
+       
+       /* LED Segment Driver */
+       tm1637_init();
 
-       //uint32_t test = hextoreg("12345678");
-               
-//     cputs(regtohex(test));
-
-       //extern void stub();
-       //stub();
-       //__asm__ __volatile__ ("ldc p1, cr1, r0");
-
-/*     while(1) {
-               int r;
-               for (int i = 0; i < 50000; i++) {
-                       r = 0;  
-               }
-               led_on();
-               for (int i = 0; i < 50000; i++) {
-                       r = 0;  
-               }
-               led_off();
-       } */
+       /* Start up terminal */
        terminal();
 
+       /* Should not be here, endless loop */
        for(;;) {
 
        }