本帖最后由 linminjun 于 2009-10-16 17:23 编辑
单片机是：stm32f103ze LCD ：是8080总线型的时序如下
lcd手册：
WLA3616_0904.pdf
(461.24 KB)
连接图如下：
程序初始化如下：
void LCD_CtrlLinesConfig(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* Enable FSMC, GPIOD, GPIOE, GPIOF, GPIOG and AFIO clocks */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_FSMC, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOE |
RCC_APB2Periph_GPIOF | RCC_APB2Periph_GPIOG |
RCC_APB2Periph_AFIO, ENABLE);
/* Set PD.00(D2), PD.01(D3), PD.04(NOE), PD.05(NWE), PD.14(D0), PD.15(D1) as alternate
function push pull */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_4 | GPIO_Pin_5 |
GPIO_Pin_14 | GPIO_Pin_15;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOD, &GPIO_InitStructure);
/* Set PE.07(D4), PE.08(D5), PE.09(D6), PE.10(D7) as alternate function push pull */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10;
GPIO_Init(GPIOE, &GPIO_InitStructure);
/* Set PF.00(A0 (RS)) as alternate function push pull */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1;
GPIO_Init(GPIOF, &GPIO_InitStructure);
/* Set PG.12(NE4 (LCD/CS)) as alternate function push pull - CE3(LCD /CS) */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;
GPIO_Init(GPIOG, &GPIO_InitStructure);
}
void LCD_FSMCConfig(void)
{
FSMC_NORSRAMInitTypeDef FSMC_NORSRAMInitStructure;
FSMC_NORSRAMTimingInitTypeDef p;
/*-- FSMC Configuration ------------------------------------------------------*/
/*----------------------- SRAM Bank 4 ----------------------------------------*/
/* FSMC_Bank1_NORSRAM4 configuration */
p.FSMC_AddressSetupTime = 0; //ADDSET 地址建立时间
p.FSMC_AddressHoldTime = 4; //ADDHOLD 地址保持时间
p.FSMC_DataSetupTime = 20; //DATAST 数据建立时间
p.FSMC_BusTurnAroundDuration = 0; //BUSTURN 总线返转时间
p.FSMC_CLKDivision = 0; //CLKDIV 时钟分频
p.FSMC_DataLatency = 4; //DATLAT 数据保持时间
p.FSMC_AccessMode = FSMC_AccessMode_A; //ACCMOD FSMC 访问模式
/* Color LCD configuration ------------------------------------
LCD configured as follow:
- Data/Address MUX = Disable
- Memory Type = SRAM
- Data Width = 8bit
- Write Operation = Enable
- Extended Mode = Enable
- Asynchronous Wait = Disable */
FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM4;
FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable;
FSMC_NORSRAMInitStructure.FSMC_MemoryType = FSMC_MemoryType_SRAM;
FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_8b;
FSMC_NORSRAMInitStructure.FSMC_BurstAccessMode = FSMC_BurstAccessMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalPolarity = FSMC_WaitSignalPolarity_Low;
FSMC_NORSRAMInitStructure.FSMC_WrapMode = FSMC_WrapMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalActive = FSMC_WaitSignalActive_BeforeWaitState;
FSMC_NORSRAMInitStructure.FSMC_WriteOperation = FSMC_WriteOperation_Enable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignal = FSMC_WaitSignal_Disable;
FSMC_NORSRAMInitStructure.FSMC_ExtendedMode = FSMC_ExtendedMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_AsyncWait = FSMC_AsyncWait_Disable;
FSMC_NORSRAMInitStructure.FSMC_WriteBurst = FSMC_WriteBurst_Disable;
FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = &p;
FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &p;
FSMC_NORSRAMInit(&FSMC_NORSRAMInitStructure);
/* BANK 4 (of NOR/SRAM Bank 1~4) is enabled */
FSMC_NORSRAMCmd(FSMC_Bank1_NORSRAM4, ENABLE);
}
#define LCD_WR_X *((volatile unsigned char * )0x6c000000)
#define LCD_WR_Y *((volatile unsigned char * )0x6c000001)
#define LCD_WR_DATA *((volatile unsigned char * )0x6c000002)
#define LCD_WR_CTRL *((volatile unsigned char * )0x6c000003)
void LCD_Clear(u8 Color)
{
u16 x;
u8 y;
LCD_WR_CTRL =0x0c; // 开启地址自动增加
delay();
LCD_WR_X = 0x00;
delay();
LCD_WR_Y = 0x00;
delay();
for(x = 0; x < 320; x++)
{
for(y = 0; y < 240; y++)
{
LCD_WR_DATA = Color;
delay();
delay();
}
}
delay();
}
另：FSMC_NE4 ，FSMC_NWE，A0,A1都有信号出来，硬件连接应该没错。现在应该是速率的问题，试了很多配置，驱动不起来。
劳烦阅贴，感谢！ |
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