zlg7290.c

周立功magic2200实验箱linux增补例子。包括（GPIO zlg7290 webserver adc spi signaltime等等）

#include "config.h"

int fd;

uint16 zlg7290_getkey(void)
{
    uint8 temp[2];

    temp[0] = 1;
    temp[1] = 0;
    write(fd, temp, 1);
	read(fd, temp, 2);
	return (temp[0] + (temp[1] * 256));
}

void zlg7290_sndcmd(uint8 dat1, uint8 dat2)
{
    uint8 temp[3];

    temp[0] = 0x07;
    temp[1] = dat1;
    temp[2] = dat2;
    write(fd, temp, 3);
}


void zlg7290_disp(uint8 *buf, uint8 num)
{
    uint8 i;
    uint8 temp[3];

    for(i=0; i<num; i++)
    {
        temp[0] = 0x07;
        temp[1] = 0x60+i;
        temp[2] = *buf;
        buf++;
        write(fd, temp, 3);
    }
}

int main()
{
    uint32 i;
    int32 key;
    uint8 buf[8];
    uint32 fpclk,fi2c;
 
    fpclk = 11059200;
    fi2c = 30000;    // 30k

    fd = open("/dev/zlg7290", O_RDWR);
    if(fd == -1)
    {
        printf("\nDon't open this file!\n");
        return -1;
    }

    ioctl(fd, I2C_SET_CLH, ((fpclk / fi2c) + 1) / 2);
    ioctl(fd, I2C_SET_CLL, (fpclk / fi2c) / 2);
    printf("Hello ZLG7290!\n");
    
    // LPC2290F //
    buf[7] = 0x14;
    buf[6] = 0x16;
    buf[5] = 0x0C;
    buf[4] = 0x02;
    buf[3] = 0x02;
    buf[2] = 0x09;
    buf[1] = 0x00;
    buf[0] = 0x0F;

    zlg7290_disp(buf, 8);

    
    for (;;)
    {
        key = zlg7290_getkey();
        zlg7290_sndcmd(0x70, 1<<(key-1));
        //sleep(1);
    }

    close(fd);
    return 0;
}

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