求配置CH7034B的程序

Mikeyunshan 2019-04-18 10:47:14
求配置CH7034B的程序
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qq_32049489 2020-11-17
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I2CWrite(0x03, 0x04);这个是不是错误了。在页4中,都没有以上寄存器
qq_32049489 2020-11-16
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你好,你这个是RGB转VGA的吗
cnlala 2019-10-29
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//Chrontel type define: 
typedef unsigned __int64	ch_uint64;
typedef unsigned int		ch_uint32;
typedef unsigned short		ch_uint16;
typedef unsigned char		ch_uint8;
typedef ch_uint32		ch_bool;
#define ch_true			1
#define ch_false		0

//IIC function: read/write CH7034
ch_uint32 I2CRead(ch_uint32 index)
{
	//Realize this according to your system...
}
void I2CWrite(ch_uint32 index, ch_uint32 value)
{
	//Realize this according to your system...
}

static ch_uint32 CH7034_RegTable[][2] = {
	{ 0x03, 0x04 },
	{ 0x52, 0xC3 },
	{ 0x5A, 0x06 },
	{ 0x5A, 0x04 },
	{ 0x5A, 0x06 },
	{ 0x52, 0xC1 },
	{ 0x52, 0xC3 },
	{ 0x5A, 0x04 },
	{ 0x03, 0x00 },
	{ 0x07, 0xD9 },
	{ 0x08, 0xF1 },
	{ 0x09, 0x03 },
	{ 0x0A, 0x9E },
	{ 0x0B, 0x2C },
	{ 0x0C, 0x00 },
	{ 0x0D, 0x40 },
	{ 0x0E, 0x00 },
	{ 0x0F, 0x18 },
	{ 0x10, 0x88 },
	{ 0x11, 0x1B },
	{ 0x12, 0x00 },
	{ 0x13, 0x26 },
	{ 0x14, 0x00 },
	{ 0x15, 0x03 },
	{ 0x16, 0x06 },
	{ 0x17, 0x00 },
	{ 0x18, 0x20 },
	{ 0x19, 0xF8 },
	{ 0x1A, 0xFD },
	{ 0x1B, 0xE8 },
	{ 0x1C, 0x69 },
	{ 0x1D, 0x78 },
	{ 0x1E, 0x00 },
	{ 0x1F, 0x2C },
	{ 0x20, 0x00 },
	{ 0x21, 0x40 },
	{ 0x22, 0x00 },
	{ 0x23, 0x10 },
	{ 0x24, 0x60 },
	{ 0x25, 0x1B },
	{ 0x26, 0x00 },
	{ 0x27, 0x26 },
	{ 0x28, 0x00 },
	{ 0x29, 0x0A },
	{ 0x2A, 0x02 },
	{ 0x2B, 0x08 },
	{ 0x2C, 0x00 },
	{ 0x2D, 0x00 },
	{ 0x2E, 0x3D },
	{ 0x2F, 0x00 },
	{ 0x32, 0xC0 },
	{ 0x36, 0x40 },
	{ 0x38, 0x47 },
	{ 0x3D, 0x86 },
	{ 0x3E, 0x00 },
	{ 0x40, 0x0E },
	{ 0x4B, 0x40 },
	{ 0x4C, 0x40 },
	{ 0x4D, 0x80 },
	{ 0x54, 0x80 },
	{ 0x55, 0x18 },
	{ 0x56, 0x88 },
	{ 0x57, 0x00 },
	{ 0x58, 0x03 },
	{ 0x59, 0x06 },
	{ 0x5A, 0x03 },
	{ 0x5B, 0x9C },
	{ 0x5C, 0x71 },
	{ 0x5D, 0xC7 },
	{ 0x5E, 0x54 },
	{ 0x60, 0x00 },
	{ 0x61, 0x00 },
	{ 0x64, 0x30 },
	{ 0x68, 0x46 },
	{ 0x6A, 0x41 },
	{ 0x6B, 0x00 },
	{ 0x6C, 0x10 },
	{ 0x6D, 0x00 },
	{ 0x6E, 0xA8 },
	{ 0x70, 0x98 },
	{ 0x74, 0x30 },
	{ 0x75, 0x80 },
	{ 0x7E, 0x0F },
	{ 0x7F, 0x00 },
	{ 0x03, 0x01 },
	{ 0x08, 0x05 },
	{ 0x09, 0x04 },
	{ 0x0B, 0x65 },
	{ 0x0C, 0x4A },
	{ 0x0D, 0x29 },
	{ 0x0F, 0x9C },
	{ 0x12, 0xD4 },
	{ 0x13, 0xA8 },
	{ 0x14, 0x83 },
	{ 0x15, 0x00 },
	{ 0x16, 0x00 },
	{ 0x1A, 0x6C },
	{ 0x1B, 0x00 },
	{ 0x1C, 0x00 },
	{ 0x1D, 0x00 },
	{ 0x23, 0x63 },
	{ 0x24, 0xB4 },
	{ 0x28, 0x54 },
	{ 0x29, 0x60 },
	{ 0x41, 0x60 },
	{ 0x63, 0x2D },
	{ 0x6B, 0x11 },
	{ 0x6C, 0x02 },
	{ 0x03, 0x03 },
	{ 0x26, 0x00 },
	{ 0x28, 0x00 },
	{ 0x2A, 0x00 },
	{ 0x03, 0x04 },
	{ 0x10, 0x00 },
	{ 0x11, 0xFD },
	{ 0x12, 0xE8 },
	{ 0x13, 0x02 },
	{ 0x14, 0x88 },
	{ 0x15, 0x70 },
	{ 0x20, 0x00 },
	{ 0x21, 0x00 },
	{ 0x22, 0x00 },
	{ 0x23, 0x00 },
	{ 0x24, 0x00 },
	{ 0x25, 0x00 },
	{ 0x26, 0x00 },
	{ 0x54, 0xC4 },
	{ 0x55, 0x5B },
	{ 0x56, 0x4D },
	{ 0x60, 0x01 },
	{ 0x61, 0x60 },
};
#define REGTABLE_LEN	((sizeof(CH7034_RegTable))/(2*sizeof(ch_uint32)))

ch_bool InitializeCH7034()
{
	ch_uint32 i;
	ch_uint32 val_t;
	ch_uint32 hinc_reg, hinca_reg, hincb_reg;
	ch_uint32 vinc_reg, vinca_reg, vincb_reg;
	ch_uint32 hdinc_reg, hdinca_reg, hdincb_reg;

	//1. write register table:
	for(i=0; i<REGTABLE_LEN; ++i)
	{
		I2CWrite(CH7034_RegTable[i][0], CH7034_RegTable[i][1]);
	}

	//2. Calculate online parameters:
	I2CWrite(0x03, 0x00);
	i = I2CRead(0x25);
	I2CWrite(0x03, 0x04);
	//HINCA:
	val_t = I2CRead(0x2A);
	hinca_reg = (val_t << 3) | (I2CRead(0x2B) & 0x07);
	//HINCB:
	val_t = I2CRead(0x2C);
	hincb_reg = (val_t << 3) | (I2CRead(0x2D) & 0x07);
	//VINCA:
	val_t = I2CRead(0x2E);
	vinca_reg = (val_t << 3) | (I2CRead(0x2F) & 0x07);
	//VINCB:
	val_t = I2CRead(0x30);
	vincb_reg = (val_t << 3) | (I2CRead(0x31) & 0x07);
	//HDINCA:
	val_t = I2CRead(0x32);
	hdinca_reg = (val_t << 3) | (I2CRead(0x33) & 0x07);
	//HDINCB:
	val_t = I2CRead(0x34);
	hdincb_reg = (val_t << 3) | (I2CRead(0x35) & 0x07);
	//no calculate hdinc if down sample disaled
	if(i & (1 << 6))
	{
		if(hdincb_reg == 0)
		{
			return ch_false;
		}
		hdinc_reg = (ch_uint32)(((ch_uint64)hdinca_reg) * (1 << 20) / hdincb_reg);
		I2CWrite(0x3C, (hdinc_reg >> 16) & 0xFF);
		I2CWrite(0x3D, (hdinc_reg >>  8) & 0xFF);
		I2CWrite(0x3E, (hdinc_reg >>  0) & 0xFF);
	}
	if(hincb_reg == 0 || vincb_reg == 0)
	{
		return ch_false;
	}
	if(hinca_reg > hincb_reg)
	{
		return ch_false;
	}
	hinc_reg = (ch_uint32)((ch_uint64)hinca_reg * (1 << 20) / hincb_reg);
	vinc_reg = (ch_uint32)((ch_uint64)vinca_reg * (1 << 20) / vincb_reg);
	I2CWrite(0x36, (hinc_reg >> 16) & 0xFF);
	I2CWrite(0x37, (hinc_reg >>  8) & 0xFF);
	I2CWrite(0x38, (hinc_reg >>  0) & 0xFF);
	I2CWrite(0x39, (vinc_reg >> 16) & 0xFF);
	I2CWrite(0x3A, (vinc_reg >>  8) & 0xFF);
	I2CWrite(0x3B, (vinc_reg >>  0) & 0xFF);

	//3. Start to running:
	I2CWrite(0x03, 0x04);
	I2CWrite(0x52, 0xC7);
	I2CWrite(0x03, 0x00);
	val_t = I2CRead(0x0A);
	I2CWrite(0x0A, val_t | 0x80);
	I2CWrite(0x0A, val_t & 0x7F);
	val_t = I2CRead(0x0A);
	I2CWrite(0x0A, val_t & 0xEF);
	I2CWrite(0x0A, val_t | 0x10);
	I2CWrite(0x0A, val_t & 0xEF);

	return ch_true;
}
cnlala 2019-10-29
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上面是 1024*768 配27M晶振的

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