裸机实验之玩转 LCD 屏幕显示
裸机实验——实现按照时间规律改变所显示的照片的电子相框产品功能，在做实验时按照天嵌提供的资料，编译完之后没有错误，但烧到板子上没有实现想要的功能，LCD屏成白色，请大师帮我分析下代码，/****************************************************************NAME: u2440mon.c
DESC: u2440mon entry point,menu,download
****************************************************************/
#define GLOBAL_CLK 1
#include <stdlib.h>
#include <string.h>
#include "def.h"
#include "option.h"
#include "2440addr.h"
#include "2440lib.h"
#include "2440slib.h"
#include "mmu.h"
#include "profile.h"
#include "memtest.h"
extern char Image$$RO$$Limit[];
extern char Image$$RO$$Base[];
extern char Image$$RW$$Limit[];
extern char Image$$RW$$Base[];
extern char Image$$ZI$$Limit[];
extern char Image$$ZI$$Base[];
extern unsigned char TQ_LOGO_480272[];
extern unsigned char TQ_LOGO1_480272[];
extern unsigned char TQ_LOGO2_480272[];
extern unsigned char TQ_LOGO3_480272[];
extern unsigned char TQ_LOGO4_480272[];
extern unsigned char TQ_LOGO5_480272[];
void Isr_Init(void);
void HaltUndef(void);
void HaltSwi(void);
void HaltPabort(void);
void HaltDabort(void);
void ClearMemory(void);
void Clk0_Enable(int clock_sel);
void Clk1_Enable(int clock_sel);
void Clk0_Disable(void);
void Clk1_Disable(void);
extern void Lcd_TFT_Init(void);
extern void Lcd_TFT_Test( void ) ;
extern void Test_Touchpanel(void) ;
extern void Test_Adc(void) ;
extern void KeyScan_Test(void) ;
extern void RTC_Display(void) ;
extern void Test_IrDA_Tx(void) ;
extern void PlayMusicTest(void) ;
extern void RecordTest( void ) ;
extern void Test_Iic(void) ;
extern void Test_SDI(void) ;
extern void Camera_Test( void ) ;
extern void Paint_Bmp(int x0,int y0,int h,int l,unsigned char bmp[]);
volatile U32 downloadAddress;
void (*restart)(void)=(void (*)(void))0x0;
volatile unsigned char *downPt;
volatile U32 downloadFileSize;
volatile U16 checkSum;
volatile unsigned int err=0;
volatile U32 totalDmaCount;
volatile int isUsbdSetConfiguration;
int download_run=0;
U32 tempDownloadAddress;
int menuUsed=0;
extern char Image$$RW$$Limit[];
U32 *pMagicNum=(U32 *)Image$$RW$$Limit;
int consoleNum;
static U32 cpu_freq;
static U32 UPLL;
static void cal_cpu_bus_clk(void)
{
U32 val;
U8 m, p, s;
val = rMPLLCON;
m = (val>>12)&0xff;
p = (val>>4)&0x3f;
s = val&3;
//(m+8)*FIN*2 ²»Òª³¬³ö32λÊý!
FCLK = ((m+8)*(FIN/100)*2)/((p+2)*(1<<s))*100;
val = rCLKDIVN;
m = (val>>1)&3;
p = val&1;
val = rCAMDIVN;
s = val>>8;
switch (m) {
case 0:
HCLK = FCLK;
break;
case 1:
HCLK = FCLK>>1;
break;
case 2:
if(s&2)
HCLK = FCLK>>3;
else
HCLK = FCLK>>2;
break;
case 3:
if(s&1)
HCLK = FCLK/6;
else
HCLK = FCLK/3;
break;
}
if(p)
PCLK = HCLK>>1;
else
PCLK = HCLK;
if(s&0x10)
cpu_freq = HCLK;
else
cpu_freq = FCLK;
val = rUPLLCON;
m = (val>>12)&0xff;
p = (val>>4)&0x3f;
s = val&3;
UPLL = ((m+8)*FIN)/((p+2)*(1<<s));
UCLK = (rCLKDIVN&8)?(UPLL>>1):UPLL;
}
/*void Temp_function() { Uart_Printf("\nPlease input 1-11 to select test!!!\n"); }
struct {
void (*fun)(void);
char *tip;
}CmdTip[] = {
{ Temp_function, "Please input 1-11 to select test" } ,
{ BUZZER_PWM_Test, "Test PWM" } ,
{ RTC_Display, "RTC time display" } ,
{ Test_Adc, "Test ADC" } ,
{ KeyScan_Test, "Test interrupt and key scan" } ,
{ Test_Touchpanel, "Test Touchpanel" } ,
{ Lcd_TFT_Test, "Test TFT LCD" } ,
{ Test_Iic, "Test IIC EEPROM" } ,
{ PlayMusicTest, "UDA1341 play music" } ,
{ RecordTest, "UDA1341 record voice" } ,
{ Test_SDI, "Test SD Card" } ,
{ Camera_Test, "Test CMOS Camera"},
{ 0, 0}
};*/
void Main(void)
{
char *mode;
int i;
U8 key;
U32 mpll_val = 0 ;
//U32 divn_upll = 0 ;
#if ADS10
// __rt_lib_init(); //for ADS 1.0
#endif
Port_Init();
Isr_Init();
i = 2 ; //don't use 100M!
switch ( i ) {
case 0: //200
key = 12;
mpll_val = (92<<12)|(4<<4)|(1);
break;
case 1: //300
key = 13;
mpll_val = (67<<12)|(1<<4)|(1);
break;
case 2: //400
key = 14;
mpll_val = (92<<12)|(1<<4)|(1);
break;
case 3: //440!!!
key = 14;
mpll_val = (102<<12)|(1<<4)|(1);
break;
default:
key = 14;
mpll_val = (92<<12)|(1<<4)|(1);
break;
}
//init FCLK=400M, so change MPLL first
ChangeMPllValue((mpll_val>>12)&0xff, (mpll_val>>4)&0x3f, mpll_val&3);
ChangeClockDivider(key, 12);
cal_cpu_bus_clk();
consoleNum = 0; // Uart 1 select for debug.
Uart_Init( 0,115200 );
Uart_Select( consoleNum );
Beep(2000, 100);
Uart_SendByte('\n');
Uart_Printf("<***************************************>\n");
Uart_Printf(" TQ2440 Test Program\n");
Uart_Printf(" www.embedsky.net\n");
// Uart_Printf(" Build time is: %s%s\n", __DATE__ , __TIME__);
Uart_Printf("<***************************************>\n");
rMISCCR=rMISCCR&~(1<<3); // USBD is selected instead of USBH1
rMISCCR=rMISCCR&~(1<<13); // USB port 1 is enabled.
rDSC0 = 0x2aa;
rDSC1 = 0x2aaaaaaa;
//Enable NAND, USBD, PWM TImer, UART0,1 and GPIO clock,
//the others must be enabled in OS!!!
rCLKCON = 0xfffff0;
MMU_Init(); //
pISR_SWI=(_ISR_STARTADDRESS+0xf0); //for pSOS
Led_Display(0x66);
mode="DMA";
Clk0_Disable();
Clk1_Disable();
mpll_val = rMPLLCON;
Lcd_TFT_Init() ; // LCD initial
download_run=1; //The default menu is the Download & Run mode.
while(1)
{
Lcd_TFT_Test();
Paint_Bmp(0, 0, 480, 272, TQ_LOGO_480272);
Delay(1000);
Paint_Bmp(0, 0, 480, 272, TQ_LOGO1_480272);
Delay(1000);
Paint_Bmp(0, 0, 480, 272, TQ_LOGO2_480272);
Delay(1000);
Paint_Bmp(0, 0, 480, 272, TQ_LOGO3_480272);
Delay(1000);
Paint_Bmp(0, 0, 480, 272, TQ_LOGO4_480272);
Delay(1000);
Paint_Bmp(0, 0, 480, 272, TQ_LOGO5_480272);
Delay(1000);
}
}
void Isr_Init(void)
{
pISR_UNDEF=(unsigned)HaltUndef;
pISR_SWI=(unsigned)HaltSwi;
pISR_PABORT=(unsigned)HaltPabort;
pISR_DABORT=(unsigned)HaltDabort;
rINTMOD=0x0; // All=IRQ mode
rINTMSK=BIT_ALLMSK; // All interrupt is masked.
}
void HaltUndef(void)
{
Uart_Printf("Undefined instruction exception!!!\n");
while(1);
}
void HaltSwi(void)
{
Uart_Printf("SWI exception!!!\n");
while(1);
}
void HaltPabort(void)
{
Uart_Printf("Pabort exception!!!\n");
while(1);
}
void HaltDabort(void)
{
Uart_Printf("Dabort exception!!!\n");
while(1);
}
void ClearMemory(void)
{
int memError=0;
U32 *pt;
Uart_Printf("Clear Memory (%xh-%xh):WR",_RAM_STARTADDRESS,HEAPEND);
pt=(U32 *)_RAM_STARTADDRESS;
while((U32)pt < HEAPEND)
{
*pt=(U32)0x0;
pt++;
}
if(memError==0)Uart_Printf("\b\bO.K.\n");
}
void Clk0_Enable(int clock_sel)
{ // 0:MPLLin, 1:UPLL, 2:FCLK, 3:HCLK, 4:PCLK, 5:DCLK0
rMISCCR = rMISCCR&~(7<<4) | (clock_sel<<4);
rGPHCON = rGPHCON&~(3<<18) | (2<<18);
}
void Clk1_Enable(int clock_sel)
{ // 0:MPLLout, 1:UPLL, 2:RTC, 3:HCLK, 4:PCLK, 5:DCLK1
rMISCCR = rMISCCR&~(7<<8) | (clock_sel<<8);
rGPHCON = rGPHCON&~(3<<20) | (2<<20);
}
void Clk0_Disable(void)
{
rGPHCON = rGPHCON&~(3<<18); // GPH9 Input
}
void Clk1_Disable(void)
{
rGPHCON = rGPHCON&~(3<<20); // GPH10 Input
}
请大师指正！ 您好,这个问题解决了不?我也遇到你一样的问题了!
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