main.c

来自「最新版IAR FOR ARM（EWARM）5.11中的代码例子」· C语言 代码 · 共 64 行

#include <stdio.h>
#include <string.h>
#include <intrinsics.h>
#include "timer.h"
#include "tms470.h"
#ifdef R1VFA384
#include <TexasInstruments/iotms470r1a384.h>
#else
#include <TexasInstruments/iotms470r1a256.h>
#endif

// LED moving pattern codes.
static int led_table[] = {
  0x1818, 0x3c3c, 0x7e7e, 0xffff, 0xe7e7, 0xc3c3, 0x8181, 0x4242, 0x2424, -1
};


int main(void)
{
  // Set up peripheral registers.
  // First disable interrupts.
  __disable_interrupt();

  // Setup system.
  TMS470SystemInit();
  // Setup ports.
  TMS470InitPIO();
  // Setup interrupt controller.
  TMS470InitInterrupt(TimerBeat);
  // Periodic timer initialization.
  TMS470InitTimer();

  // Enable interrupts.
  __enable_interrupt();

  // Start periodic timer.
  TMS470StartTimer();

  // Initial LED pattern.
  TMS470LedSet(0x18);
  // Display pattern for 1 second.
  Sleep(1000);
  // Next LED pattern.
  TMS470LedSet(0xc3);
  // Display pattern for 1 second.
  Sleep(1000);

  // Loop forever.
  for (;;)
  {
    int *ip;

    // Loop over all LED patterns in table.
    for (ip = led_table; *ip != -1; ip++)
    {
      // Update LEDs.
      TMS470LedSet(*ip);

      // Wait 75 ms to show pattern for some time.
      Sleep(75);
    }
  }
}