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basicdev

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注册时间： 2017-10-02

已发帖子： 159

积分： 159

开始测试v3s 荔枝派zero 接oled, 请围观.

参考:
https://www.kancloud.cn/lichee/lpi0/326953

basicdev

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注册时间： 2017-10-02

已发帖子： 159

积分： 159

Re: 开始测试v3s 荔枝派zero 接oled, 请围观.

貌似这个选项已经选好了：

Device Drivers  --->
    Graphics support  --->
        Frame buffer Devices  --->
            <*> Solomon SSD1307 framebuffer support

basicdev

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注册时间： 2017-10-02

已发帖子： 159

积分： 159

Re: 开始测试v3s 荔枝派zero 接oled, 请围观.

修改: arch/arm/boot/dts/sun8i-v3s-licheepi-zero.dts

&i2c0 {
    status = "okay";

    ns2009: ns2009@48 {
        compatible = "nsiway,ns2009";
        reg = <0x48>;
    };

ssd1306fb: ssd1306fb@3c {
        compatible = "solomon,ssd1306fb-i2c";
        reg = <0x3c>;
        solomon,width = <128>;
        solomon,height = <64>;
        reset-gpios = <&pio 1 0 GPIO_ACTIVE_HIGH>;
        solomon,page-offset = <0>;
        solomon,com-invdir;
    };

};

最近编辑记录 basicdev (2017-10-06 17:09:38)

basicdev

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注册时间： 2017-10-02

已发帖子： 159

积分： 159

Re: 开始测试v3s 荔枝派zero 接oled, 请围观.

终于搞定:

写随机数:

cat /dev/urandom > /dev/fb1

清屏:

cat /dev/zero > /dev/fb1

basicdev

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注册时间： 2017-10-02

已发帖子： 159

积分： 159

Re: 开始测试v3s 荔枝派zero 接oled, 请围观.

注意在参数设置中要勾选字节倒叙选项。
下面写一个测试程序，加载驱动并把图像显示到屏幕上
C测试程序

#include <unistd.h>
#include <stdio.h>
#include <fcntl.h>
#include <linux/fb.h>
#include <sys/mman.h>
#include <stdlib.h>
#include <string.h>

	/*seconds: the seconds; mseconds: the micro seconds*/
	void setTimer(int seconds, int mseconds)
{
	struct timeval temp;
	temp.tv_sec = seconds;
	temp.tv_usec = mseconds;
	printf("timer1\n");
	select(0, NULL, NULL, NULL, &temp);
	printf("timer2\n");
	return ;
}

int main ()
{
	char lichee[] = {
		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
		0xE0,0x00,0x04,0x00,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
		0x60,0x00,0x06,0x00,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
		0x40,0x00,0x04,0x00,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
		0x40,0x00,0x00,0x00,0x04,0x00,0x00,0x00,0x00,0x06,0x00,0x00,0x00,0x00,0x00,0x00,
		0x40,0x00,0x00,0x00,0x04,0x00,0x00,0x00,0x00,0x07,0x00,0x00,0x00,0x00,0x00,0x00,
		0x40,0x00,0x00,0x00,0x04,0x00,0x00,0x00,0xC0,0x0F,0x00,0x00,0x00,0x00,0x00,0x00,
		0x40,0x00,0x07,0x3C,0x74,0xE0,0x81,0x03,0xE0,0x0F,0x00,0x00,0x00,0x00,0x00,0x00,
		0x40,0x00,0x04,0x22,0x8C,0x10,0x43,0x04,0xF0,0x1F,0x00,0x00,0x00,0x00,0x00,0x00,
		0x40,0x00,0x04,0x42,0x84,0x10,0x22,0x0C,0xF8,0x1F,0x00,0x00,0x00,0x00,0x00,0x00,
		0x40,0x00,0x04,0x03,0x84,0x08,0x22,0x08,0xFC,0x3F,0x00,0x00,0x00,0x00,0x00,0x00,
		0x40,0x00,0x04,0x01,0x84,0x18,0x22,0x08,0xFE,0x3F,0x00,0x00,0x00,0x00,0x00,0x00,
		0x40,0x00,0x04,0x01,0x84,0x18,0x20,0x00,0xFE,0x7F,0x00,0x00,0x00,0x00,0x00,0x00,
		0x40,0x00,0x04,0x01,0x84,0x08,0x20,0x00,0xFE,0x7F,0x00,0x00,0x00,0x00,0x00,0x00,
		0x40,0x10,0x04,0x03,0x84,0x18,0x20,0x00,0xFE,0xFF,0x00,0x00,0x00,0x00,0x00,0x08,
		0x40,0x10,0x04,0x02,0x84,0x10,0x22,0x00,0xFF,0xFF,0x01,0x00,0x00,0x00,0x00,0x0C,
		0x40,0x18,0x04,0x06,0x84,0x30,0x40,0x04,0xFF,0xFF,0x03,0x00,0x00,0x00,0x00,0x06,
		0xE0,0x0F,0x1F,0x1C,0xCE,0xC1,0x80,0x03,0xFF,0xFF,0x07,0x00,0x00,0x00,0x00,0x07,
		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xFF,0xFF,0x0F,0x00,0x00,0x00,0x80,0x07,
		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xBF,0xFF,0x1F,0x00,0x00,0x00,0xC0,0x07,
		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xDF,0xFF,0x7F,0x00,0x00,0x00,0xE0,0x07,
		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xC7,0xFF,0xFF,0x00,0x00,0x00,0xF0,0x03,
		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xC0,0xC9,0xFF,0xFF,0x01,0x00,0x00,0xF0,0x03,
		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x40,0xC0,0xFF,0xFF,0x03,0x00,0x00,0xF8,0x03,
		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xC0,0xC0,0xFF,0xFF,0x07,0x00,0x00,0xF0,0x03,
		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x40,0xC0,0xF7,0xFF,0x0F,0x00,0x00,0xF8,0x03,
		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xC0,0xE3,0xFF,0xFF,0x1F,0x00,0x00,0xF8,0x01,
		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xEF,0xFF,0xFF,0x7F,0x00,0x00,0xF8,0x01,
		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xFB,0xFF,0xFF,0xFF,0x00,0x00,0xFC,0x01,
		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xFF,0xFF,0xFF,0xFF,0x03,0x00,0xFC,0x00,
		0x40,0x30,0x00,0x06,0x04,0x00,0x00,0x80,0xFF,0xFF,0xFF,0xFF,0x07,0x00,0xFE,0x00,
		0x40,0x10,0x02,0x06,0x04,0xC0,0x00,0x9C,0xFF,0xFF,0xFF,0xFF,0x0F,0x00,0xFF,0x00,
		0xFE,0xFF,0x07,0x06,0x04,0x80,0xC8,0x81,0xFF,0xFF,0xFF,0xFF,0x3F,0x00,0x7F,0x00,
		0x40,0x10,0x00,0x06,0x04,0x80,0x08,0x00,0xFF,0xFF,0xFF,0xFF,0x7F,0x80,0x7F,0x00,
		0x40,0x13,0x00,0x16,0xCC,0x00,0x08,0x10,0xFF,0xFF,0xFF,0xFF,0xFF,0xC0,0x7F,0x00,
		0x00,0xC3,0xC0,0x3F,0x04,0x00,0x08,0x0E,0xFE,0xFF,0xFF,0xFF,0xFF,0xE3,0x3F,0x00,
		0x00,0xC1,0x00,0x06,0x04,0x10,0x48,0x00,0xFE,0xFF,0xFF,0xFF,0xFF,0xF7,0x3F,0x00,
		0x80,0x41,0x00,0x06,0x04,0x20,0x49,0x00,0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,0x3F,0x00,
		0x80,0x40,0x00,0x0E,0x44,0x20,0x48,0x30,0xFC,0xFF,0xFF,0xFF,0xFF,0xFF,0x3F,0x00,
		0x60,0x78,0x00,0x9F,0x61,0x80,0x48,0x08,0xF8,0xFF,0xFF,0xFF,0xFF,0xFF,0x3F,0x00,
		0x38,0x30,0x00,0x17,0x60,0x80,0x48,0x02,0xF8,0xFF,0xFF,0xFF,0xFF,0xFF,0x3F,0x00,
		0x20,0x60,0x00,0x17,0x21,0x80,0x48,0x02,0xF0,0xFF,0xFF,0xFF,0xFF,0xFF,0x1F,0x00,
		0xFE,0xFB,0x83,0x06,0x30,0x40,0x48,0x02,0xE0,0xFF,0xFF,0xFF,0xFF,0xFF,0x1F,0x00,
		0x30,0x23,0x02,0x06,0x12,0x70,0x44,0x04,0xC0,0xFF,0xFF,0xFF,0xFF,0xFF,0x0F,0x00,
		0x30,0x23,0x42,0x06,0x1A,0x60,0x44,0x04,0x80,0xFF,0xFF,0xFF,0xFF,0xFF,0x07,0x00,
		0x10,0x31,0x02,0x06,0x0C,0x40,0x44,0x08,0x80,0xFF,0xFF,0xFF,0xFF,0xFF,0x03,0x00,
		0x18,0x11,0x03,0x06,0x0E,0x60,0x42,0x18,0xC0,0xFF,0xFF,0xFF,0xFF,0xFF,0x01,0x00,
		0x88,0x19,0x03,0x06,0x31,0x60,0xC2,0x30,0xE0,0xFF,0xFF,0xFF,0xFF,0xFF,0x00,0x00,
		0xC4,0xCD,0x01,0x86,0xE0,0x61,0x41,0x20,0xE0,0xFF,0xFF,0xFF,0xFF,0x7F,0x00,0x00,
		0x00,0x82,0x01,0x36,0x80,0x00,0x00,0x00,0xF0,0xFF,0xFF,0xFF,0xFF,0x1F,0x00,0x00,
		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xE0,0x9F,0xFF,0xFF,0xFF,0x07,0x00,0x00,
		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x0F,0xFF,0xFF,0xFF,0x01,0x00,0x00,
		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0xFC,0xFF,0x7F,0x00,0x00,0x00,
		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xF0,0xFF,0x0F,0x00,0x00,0x00,
		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xF8,0x7F,0x00,0x00,0x00,0x00,
		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xE0,0x01,0x00,0x00,0x00,
		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
	};
	int fp=0;
	long screensize=0;

	char *fbp = 0;

	struct fb_var_screeninfo vinfo;
	struct fb_fix_screeninfo finfo;
	fp = open ("/dev/fb1",O_RDWR);

	if (fp < 0){
		printf("Error : Can not open framebuffer device/n");
		exit(1);
	}

	if (ioctl(fp,FBIOGET_FSCREENINFO,&finfo)){
		printf("Error reading fixed information/n");
		exit(2);
	}

	if (ioctl(fp,FBIOGET_VSCREENINFO,&vinfo)){
		printf("Error reading variable information/n");
		exit(3);
	}

	printf("The mem is :%d\n",finfo.smem_len);
	printf("The line_length is :%d\n",finfo.line_length);
	printf("The xres is :%d\n",vinfo.xres);
	printf("The yres is :%d\n",vinfo.yres);
	printf("bits_per_pixel is :%d\n",vinfo.bits_per_pixel);

	screensize = vinfo.xres * vinfo.yres * vinfo.bits_per_pixel / 8;
	printf("screensize: %d\n",screensize);
	fbp =(char *) mmap (0, screensize, PROT_READ | PROT_WRITE, MAP_SHARED,
		fp,0);
	if ((int) fbp == -1)
	{
		printf ("Error: failed to map framebuffer device to memory./n");
		exit (4);
	}

	int i=0;
	memset(fbp, 0x00, 1024);
	setTimer(3,0);
	while(1){
		for(i=0;i<1024;i++){
			fbp[ i ]=lichee[ i ];
		}
		setTimer(3,0);
		memset(fbp, 0x00, 1024);
		setTimer(3,0);
	}
	munmap (fbp, screensize);
	close (fp);
}