8led_test.c

基于周立功arm开发板的实验程序

/*********************************************************************************************
* File:		8led.c
* Author:	Embest	
* Desc:		8-segment digit LED control functions
* History:	
*			Y.J.Guo, Programming modify, April 2, 2005
*********************************************************************************************/

/*------------------------------------------------------------------------------------------*/
/*									include files											*/
/*------------------------------------------------------------------------------------------*/
#include "2410lib.h"
#include "8led_test.h"
#include "iic_8led.h"

/*------------------------------------------------------------------------------------------*/
/*	 								global variables										*/
/*------------------------------------------------------------------------------------------*/
unsigned char f_szDigital[10] ={0xFC,0x60,0xDA,0xF2,0x66,0xB6,0xBE,0xE0,0xFE,0xF6};	// 0 ~ 9		

/*********************************************************************************************
* name:		led8_test()
* func:		test 8led
* para:		none
* ret:		none
* modify:
* comment:	write data to display buffer of ZLG7290,then we can see figure scrolling on LED.	
*********************************************************************************************/
void led8_test(void)
{
	int i, j, k;
	
    uart_printf("\n 8-segment Digit LED Test Example (Please look at LED)\n");
	iic_init_8led();
	for(;;)
	{
		for(j=0; j<10; j++)
		{
			for(i=0; i<8; i++)
			{
				k = 9-(i+j)%10;
				iic_write_8led(0x70, 0x10+i, f_szDigital[k]);		//write to DpRam0~DpRam7 of ZLG7290
			}
		delay(10000);
		}
   }

}