飞凌OK6410芯片，裸机LCD驱动，按照下面代码怎么显示白屏？无论我在LCD_BUFFER1缓冲区里写什么内容，LCD屏的显示内容都是一样的。为什么，我把显示控制器的文档重新看了一遍还是没有找出为什么会这样？
#include "s3c6410.h" #include "gpio.h" #include "Lcd.h" #include "trace.h" volatile unsigned int LCD_BUFFER1[272][480] ={ 0 }; unsigned int addr1 = (unsigned int)LCD_BUFFER1; void Lcd_Init() { rGPJCON = 0xAAAAAA; rGPICON = 0xAAAAAAAA; rWINCON0 &= ~0x1; TRACE("\n rWINCON0:%d, %d", rWINCON0, sizeof(LCD_BUFFER1[0][0])); //4 特殊功能寄存器，[1:0],选择LCD I/F管脚组态 rSPCON &= ~(0x03); rSPCON |= 0x01; rMIFPCON &= _BIT(3); //4 旁路选择正常(LCD正常模式与BY_PASS模式选择) //4 配置视频输出格式和显示全能/禁止 rVIDCON0 = ((9 << 6) | (1 << 4));//4 rVIDCON0 &= ~0xFF; rVIDCON1 = ((1 << 6) | (1 << 5) | (0 << 4)); //rVIDCON1 |= (1 << 7); rVIDTCON0 = (0x03 << 16) | (0x02 << 8) | (0x02 << 0); rVIDTCON1 = (0x2d << 16) | (0x04 << 8) | (0x06 << 0); //rVIDTCON0 = (0x02 << 16) | (0x02 << 8) | (0x0a << 0); //rVIDTCON1 = (0x2 << 16) | (0x02 << 8) | (0x29 << 0); rVIDTCON2 = (271 << 11) | (479 << 0); rVIDOSD0A = (0 << 11) | (0); rVIDOSD0B = (479 << 11) | (271 << 0); rVIDOSD0C = (480 * 272); rVIDW00ADD0B0 = addr1 ; //rVIDW00ADD0B1 = addr2 ; rVIDW00ADD1B0 = (addr1 + 480 * 272 * 4); //rVIDW00ADD1B1 = (addr2 + 480 * 272 * 4); rVIDW00ADD2 = (0 << 13) | (480 * 4); //4 抖动控制 rDITHMODE = (1 << 5) | (1 << 3) | (1 << 1) | (1 << 0); TRACE("\n rVIDCON0:0x%x", rVIDCON0); rWINCON0 |= (11 << 2); rWINCON0 |= 1; }
LCD屏有没有要求要先初始化？ 是不是 LCD 初始化没有完成啊？
查查 LCD 初始化~！