Prior has been used OK6410A (256M memory + 2GNand) (WinCE6.0 system), bought a HDMI high-definition display, with Feiling to the technical data, in accordance with the given information on, after Eboot made changes, you can normally use HDMI high-definition displays. Recently in order to save dozens of pieces of RMB, the boss decided to replace the board to use 128M memory + 256MNand board, ready to get our hands on the HD section added to the list, but found Eboot not the same Yeah, the compiler error. He asked Feiling technology, people tell me they do not plan to use the information on the HDMI on this board. How to do it, only in accordance with previous data to try to solve their own. Fortunately, now resolved, let's look at how it is done.
First, we should modify the function in main.c to support HDMI choice, because this is not the default option. Two main functions: BOOL MainMenu (PBOOT_CFG pBootCfg) and void InitializeDisplay (void) function.
In the following function in the MainMenu add LCD_VGA1024_RGB options for a switch-case, the
switch(pBootCfg->ConfigFlags&LCD_TYPE_MASK)
{
case LCD_HUA350_RGB:
EdbgOutputDebugString ( "(320x240)\r\n");
break;
case LCD_HUA430_RGB:
EdbgOutputDebugString ( "(480x272)\r\n");
break;
case LCD_HUA560_RGB:
EdbgOutputDebugString ( "(640x480)\r\n");
break;
case LCD_QUN700_RGB:
EdbgOutputDebugString ( "(800x480)\r\n");
break;
case LCD_VGA800_RGB:
EdbgOutputDebugString ( "(800x600)\r\n");
break;
case LCD_VGA1024_RGB:
EdbgOutputDebugString ( "(1024x768)\r\n");
break;
default:
EdbgOutputDebugString ( "(unknown)\r\n");
break;
}static void SetLcd(PBOOT_CFG pBootCfg)
{
USHORT InChar = 0;
EdbgOutputDebugString("\r\n");
EdbgOutputDebugString("0)3.5'LCD 320X240 \r\n");
EdbgOutputDebugString("1)4.3'LCD 480X272 \r\n");
EdbgOutputDebugString("2)5.6'LCD 640X480 \r\n");
EdbgOutputDebugString("3)7.0'LCD 800X480 \r\n");
EdbgOutputDebugString("4)VGA 800X600 \r\n");
EdbgOutputDebugString("5)HDMI 1024X768 \r\n");
EdbgOutputDebugString("\r\nSelect Lcd Resolution [0-5]: ");
while(!((InChar == 0x0d) || (InChar == 0x0a)))
{
InChar = OEMReadDebugByte();
if (InChar != OEM_DEBUG_COM_ERROR && InChar != OEM_DEBUG_READ_NODATA)
{
// If it's a number or a period, add it to the string.
//
if ((InChar >= '0' && InChar <= '5'))
{
OEMWriteDebugByte((BYTE)InChar);
pBootCfg->ConfigFlags&=~LCD_TYPE_MASK;
switch(InChar){
case '0':
pBootCfg->ConfigFlags|=LCD_HUA350_RGB;
break;
case '1':
pBootCfg->ConfigFlags|=LCD_HUA430_RGB;
break;
case '2':
pBootCfg->ConfigFlags|=LCD_HUA560_RGB;
break;
case '3':
pBootCfg->ConfigFlags|=LCD_QUN700_RGB;
break;
case '4':
pBootCfg->ConfigFlags|=LCD_VGA800_RGB;
break;
case '5':
pBootCfg->ConfigFlags|=LCD_VGA1024_RGB;
break;
default:
break;
}
break;
}
}
}
}The following modified InitializeDisplay () function, in which selected mode LCD switch-case modified as follows:
switch(g_pBootCfg->ConfigFlags&LCD_TYPE_MASK){
case LCD_HUA350_RGB:
LcdType = LDI_HUA350_RGB;
g_dwLcdWidth = 320;
g_dwLcdHeight = 240;
g_dwLcdBpp = 16;
break;
case LCD_HUA430_RGB:
LcdType = LDI_HUA430_RGB;
g_dwLcdWidth = 480;
g_dwLcdHeight = 272;
g_dwLcdBpp = 16;
break;
case LCD_HUA560_RGB:
LcdType = LDI_HUA560_RGB;
g_dwLcdWidth = 640;
g_dwLcdHeight = 480;
g_dwLcdBpp = 16;
break;
case LCD_QUN700_RGB:
LcdType = LDI_QUN700_RGB;
g_dwLcdWidth = 800;
g_dwLcdHeight = 480;
g_dwLcdBpp = 16;
break;
case LCD_VGA800_RGB:
LcdType = LDI_VGA800_RGB;
g_dwLcdWidth = 800;
g_dwLcdHeight = 600;
g_dwLcdBpp = 16;
break;
case LCD_VGA1024_RGB:
LcdType = LDI_VGA1024_RGB;
g_dwLcdWidth = 1024;
g_dwLcdHeight = 768;
g_dwLcdBpp = 16;
break;
default:
LcdType = LDI_HUA350_RGB;
g_dwLcdWidth = 320;
g_dwLcdHeight = 240;
g_dwLcdBpp = 16;
break;
}Here it is basically done to modify, has been selected to support the HDMI, but only support the selection, and can not truly HDMI high-definition display, taking into account a 7033.lib has not been used before in the information given in me than information on the current and main.c main.c EBOOT is found to call a function from 7033.lib of init_7033. Then follow the information in the following modifications main.c main function is to modify the InitializeVGA:
extern void init_7033(void);
//add by phantom
static void InitializeVGA(LDI_LCD_MODULE_TYPE LcdType)
{
unsigned int i;
//EdbgOutputDebugString("[Eboot] ++InitializeVGA LcdType %d\r\n",LcdType);
//IIC_Write //CH7026 write address = 0xec
if(LcdType==LDI_HUA560_RGB)
{
EdbgOutputDebugString("[Eboot] +++InitializeVGA 640X480()\r\n");
IIC_Open(2000);
for (i = 0; i < CH7026_REG_NUM_VGA_640; i++) {
if(!IIC_Write(0xEC, CH7026_REGS_VGA_640[i].subaddr, CH7026_REGS_VGA_640[i].value))
{
EdbgOutputDebugString("[Eboot] ---InitializeVGA ERROR!!!\r\n");
IIC_Close();
return;
}
}
IIC_Write(0xEC,0x4,0x0);
IIC_Close();
EdbgOutputDebugString("[Eboot] ---InitializeVGA 640X480()\r\n");
}
else if(LcdType==LDI_VGA800_RGB)
{
EdbgOutputDebugString("[Eboot] +++InitializeVGA 800X600()\r\n");
IIC_Open(2000);
for (i = 0; i < CH7026_REG_NUM_VGA_800; i++) {
if(!IIC_Write(0xEC, CH7026_REGS_VGA_800[i].subaddr, CH7026_REGS_VGA_800[i].value))
{
EdbgOutputDebugString("[Eboot] ---InitializeVGA ERROR!!!\r\n");
IIC_Close();
return;
}
}
IIC_Write(0xEC,0x4,0x0);
IIC_Close();
EdbgOutputDebugString("[Eboot] ---InitializeVGA 800X600()\r\n");
}
else if(LcdType==LDI_VGA1024_RGB)
{
/* add by alexlee*/
EdbgOutputDebugString("[Eboot] +++InitializeHDMI 1024X768()\r\n");
init_7033();
EdbgOutputDebugString("[Eboot] ---InitializeHDMI 1024X768()\r\n");
}
}usb.h added:
BOOL IIC_Read(u8 cSlaveAddr,u8 cAddr,u8 *cData);
usb.c added:
void IIC_SetRead( u8 cSlaveAddr, u8 *pData, u32 uDataLen)
{
u32 uTmp2;
u32 uTmp3;
uTmp2= Input32(rIICSTAT0);
while(uTmp2&(1<<5)) // Wait until IIC bus is free.
uTmp2 = Input32(rIICSTAT0);
g_PcIIC_BUFFER = pData;
g_uIIC_PT = 0;
g_uIIC_DATALEN = uDataLen;
uTmp3 = Input32(rIICCON0);
uTmp3 |= (1<<7);
Outp32(rIICCON0,uTmp3); // Ack generation Enable
Outp32(rIICDS0,cSlaveAddr);
Outp32(rIICSTAT0,0xB0); // Master Rx Start.
}
BOOL IIC_Read(u8 cSlaveAddr,u8 cAddr,u8 *cData)
{
IIC_SetWrite( cSlaveAddr, &cAddr, 1); // following EEPROM random address access procedure
IIC_SetRead( cSlaveAddr, cData, 1);
IIC_Wait(); // Waiting for read complete.
}
The ch7026.h copied directly overwrite the existing file ch7026.h, because the information in this document adds a CH7033_RegTable [] [2].
Thus, to complete the modification work, then recompile, and then generate an image. After selecting the HDMI However, the system starts to intermediate stopped, and the printing DNW follows:
[Eboot] ++InitializeDisplay()
That in this place we can not continue the down. I find this statement, it is () function to print in InitializeDisplay, further search found the following cycle start interrupt cause:
for (i=0; i<g_dwLcdWidth*g_dwLcdHeight; i++)
*pFB++ = 0x0000;//0x001F; // Blue unsigned short *pFB;
pFB = (unsigned short *)EBOOT_FRAMEBUFFER_UA_START;
// Eboot Display Frame Buffer
// 2MB
#define EBOOT_FRAMEBUFFER_OFFSET (0x07F00000)
#define EBOOT_FRAMEBUFFER_PA_START (DRAM_BASE_PA_START+EBOOT_FRAMEBUFFER_OFFSET)
#define EBOOT_FRAMEBUFFER_UA_START (DRAM_BASE_UA_START+EBOOT_FRAMEBUFFER_OFFSET)
#define EBOOT_FRAMEBUFFER_SIZE (0x00100000)Recompiled again to generate images. At this point you can normally choose HDMI high-definition displays. All work completed, has not yet found anything unusual, but needs further study. . . .
