开始测试v3s 荔枝派zero 接oled, 请围观.

basicdev · 2017-10-06 17:01:45

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

basicdev · 2017-10-06 17:04:39

貌似这个选项已经选好了：

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

basicdev · 2017-10-06 17:09:19

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 · 2017-10-06 17:33:01

终于搞定:

写随机数:

cat /dev/urandom > /dev/fb1

清屏:

cat /dev/zero > /dev/fb1

basicdev · 2017-10-07 11:10:31

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);
}

晕哥 · 2017-10-08 16:43:39

两个framebuffer可以同时工作了，使用的是主线代码： 4.13.y 分支

晕哥 · 2017-10-08 16:50:40

感谢楼主，终于一步一步搞定了

超级萌新 · 2019-03-13 10:08:29

帮顶帮顶

晕哥小弟 · 2019-05-16 20:22:14

晕哥，BSP内核使用oled 可以实现么？这个是主线kernel

晕哥 · 2019-05-16 20:23:15

晕哥小弟说：

晕哥，BSP内核使用oled 可以实现么？这个是主线kernel

应该是可以,
实在不行再应用层也可以驱动.

晕哥小弟 · 2019-05-16 20:38:44

1、应用层调用接口是什么？
2、应用层调用I2C去初始化或者显示这样的屏幕的时候，可能会有延时，导致刷新或者更新缓慢。就会给人不像一个正常的产品。

晕哥 · 2019-05-16 21:15:38

1. 应用程序操作 /dev/i2c-X /dev/spiX 读写寄存器.
2. 延时应该几乎是一样的, 都是定时器或者应用驱动刷新. 只是驱动实现接口统一.

Jmhh247 · 2019-05-17 11:11:01

围观学习

晕哥小弟 · 2019-05-17 20:01:16

晕哥说：

1. 应用程序操作 /dev/i2c-X /dev/spiX 读写寄存器.
2. 延时应该几乎是一样的, 都是定时器或者应用驱动刷新. 只是驱动实现接口统一.

晕哥，V3S配置I2C模块怎么配置，我看到有其他地方是这样的配置：

[twi0/twi_board0]
compatible =
reg = 0x50
;[twi0/twi_board0]
;compatible =
;reg =

但是我用fex2bin转换的时候， / 符号报错，说无效。

晕哥 · 2019-05-17 20:05:46

http://files.lindeni.org/lindenis-v5/documents/Driver/Sunxi%20I2C总线驱动使用文档.pdf

[twi0/twi_board0]
compatible = "atmel,24c16";
reg = 0x50;

其中:
1．twi0/twi_board0：表示挂在总线 twi0 下的设备 twi_board0；；
2．compatible：表征具体的设备，用于驱动和设备的绑定；
3．reg：设备使用的地址；

晕哥小弟 · 2019-05-17 20:14:37

适用于A64、B100/G102、A20E/V40、T7、H5、V5、H6硬件平台。这个使用fex2bin 去生成.bin文件的时候，就报 / 这个是个无效字符。

晕哥 · 2019-05-17 20:19:37

可能是语法解释错误, 试一试

[twi0\/twi_board0]

晕哥小弟 · 2019-05-17 20:22:17

晕哥说：

可能是语法解释错误, 试一试
[twi0\/twi_board0]

不对。试过了。

晕哥 · 2019-05-17 20:42:22

晕哥小弟说：

晕哥说：
可能是语法解释错误, 试一试
[twi0\/twi_board0]
不对。试过了。

这就有点尴尬了, 只能改 bsp 分析 fex 的源码了, 把斜杠去掉.

晕哥小弟 · 2019-05-17 22:08:17

这个思路不对吧，这样的情况别人应该早就遇到过，可是网络没有搜到相关的信息。你的板卡也是这样么?或者你在不忙的时候也试试使用fex2bin测试下。

晕哥小弟 · 2019-05-17 22:10:14

应该不是我的sunxi-tools版本问题吧。

raspberryman · 2020-04-21 22:00:21

这个双屏不错 ^_^

1028178517 · 2023-07-05 17:25:08

这个芯片如果刷RGB的LCD速度怎么样？

Lonson · 2023-07-06 10:39:23

可以运行QT的程序吗

WhyCan Forum(哇酷开发者社区)

楼主 #1 2017-10-06 17:01:45 分享评论

开始测试v3s 荔枝派zero 接oled, 请围观.

楼主 #2 2017-10-06 17:04:39 分享评论

Re: 开始测试v3s 荔枝派zero 接oled, 请围观.

楼主 #3 2017-10-06 17:09:19 分享评论

Re: 开始测试v3s 荔枝派zero 接oled, 请围观.

楼主 #4 2017-10-06 17:33:01 分享评论

Re: 开始测试v3s 荔枝派zero 接oled, 请围观.

楼主 #5 2017-10-07 11:10:31 分享评论

Re: 开始测试v3s 荔枝派zero 接oled, 请围观.

#6 2017-10-08 16:43:39 分享评论

Re: 开始测试v3s 荔枝派zero 接oled, 请围观.

#7 2017-10-08 16:50:40 分享评论

Re: 开始测试v3s 荔枝派zero 接oled, 请围观.

#8 2019-03-13 10:08:29 分享评论

Re: 开始测试v3s 荔枝派zero 接oled, 请围观.

#9 2019-05-16 20:22:14 分享评论

Re: 开始测试v3s 荔枝派zero 接oled, 请围观.

#10 2019-05-16 20:23:15 分享评论

Re: 开始测试v3s 荔枝派zero 接oled, 请围观.

#11 2019-05-16 20:38:44 分享评论

Re: 开始测试v3s 荔枝派zero 接oled, 请围观.

#12 2019-05-16 21:15:38 分享评论

Re: 开始测试v3s 荔枝派zero 接oled, 请围观.

#13 2019-05-17 11:11:01 分享评论

Re: 开始测试v3s 荔枝派zero 接oled, 请围观.

#14 2019-05-17 20:01:16 分享评论

Re: 开始测试v3s 荔枝派zero 接oled, 请围观.

#15 2019-05-17 20:05:46 分享评论

Re: 开始测试v3s 荔枝派zero 接oled, 请围观.

#16 2019-05-17 20:14:37 分享评论

Re: 开始测试v3s 荔枝派zero 接oled, 请围观.

#17 2019-05-17 20:19:37 分享评论

Re: 开始测试v3s 荔枝派zero 接oled, 请围观.

#18 2019-05-17 20:22:17 分享评论

Re: 开始测试v3s 荔枝派zero 接oled, 请围观.

#19 2019-05-17 20:42:22 分享评论

Re: 开始测试v3s 荔枝派zero 接oled, 请围观.

#20 2019-05-17 22:08:17 分享评论

Re: 开始测试v3s 荔枝派zero 接oled, 请围观.

#21 2019-05-17 22:10:14 分享评论

Re: 开始测试v3s 荔枝派zero 接oled, 请围观.

#22 2020-04-21 22:00:21 分享评论

Re: 开始测试v3s 荔枝派zero 接oled, 请围观.

#23 2023-07-05 17:25:08 分享评论

Re: 开始测试v3s 荔枝派zero 接oled, 请围观.

#24 2023-07-06 10:39:23 分享评论

Re: 开始测试v3s 荔枝派zero 接oled, 请围观.

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