9G-STM32 EWARM开发过程简介之四--移植FSMC的T6963C驱动
// 9G-STM32 EWARM开发过程简介之四--移植FSMC的T6963C驱动
/*
一，把VDT6与T6963C连接
NOE -> /RD ;
NWE -> /WR ;
NE1 -> /CE ;
A16 -> C/D ; A16 最近，接线最方便。
PC4 -> /RST ;
D8 -> DB0 ; D8-D15 最近, 接线最方便。
...
D15 -> DB7 ;
二，把IO配置成FSMC模式
*/
void LCD_CtrlLinesConfig(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* Enable FSMC, GPIOC, GPIOD, GPIOE clocks */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_FSMC, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC | RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOE , ENABLE);
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
/* Set PC.04(LCDRST) as alternate
function push pull */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4;
GPIO_Init(GPIOC, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
/* Set PD.04(NOE), PD.05(NWE), PD.07(NE1), PD.08(D13), PD.09(D14), PD.10(D15), PD.11(A16) as alternate
function push pull */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4 | GPIO_Pin_5 | GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11 ;
GPIO_Init(GPIOD, &GPIO_InitStructure);
/* Set PE.11(D8), PE.12(D9), PE.13(D10), PE.14(D11), PE.15(D12) as alternate function push pull */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11 | GPIO_Pin_12 | GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15;
GPIO_Init(GPIOE, &GPIO_InitStructure);
}
/*
三，配置FSMC工作模式
*/
void LCD_FSMCConfig(void)
{
FSMC_NORSRAMInitTypeDef FSMC_NORSRAMInitStructure;
FSMC_NORSRAMTimingInitTypeDef p;
/*-- FSMC Configuration ------------------------------------------------------*/
/*----------------------- SRAM Bank 1 ----------------------------------------*/
/* FSMC_Bank1_NORSRAM1 configuration */
p.FSMC_AddressSetupTime = 1;
p.FSMC_AddressHoldTime = 1;
p.FSMC_DataSetupTime = 6;
p.FSMC_BusTurnAroundDuration = 1;
p.FSMC_CLKDivision = 1;
p.FSMC_DataLatency = 2;
p.FSMC_AccessMode = FSMC_AccessMode_A;
/* Color LCD configuration ------------------------------------
LCD configured as follow:
-
Data/Address MUX = Disable
-
Memory Type = SRAM
-
Data Width = 16bit
-
Write Operation = Enable
-
Extended Mode = Enable
-
Asynchronous Wait = Disable */
FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM1;
FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable;
FSMC_NORSRAMInitStructure.FSMC_MemoryType = FSMC_MemoryType_SRAM;
FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_16b;
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_Enable;
FSMC_NORSRAMInitStructure.FSMC_WriteBurst = FSMC_WriteBurst_Disable;
FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = &p;
FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &p;
FSMC_NORSRAMInit(&FSMC_NORSRAMInitStructure);
/* Enable FSMC_Bank1_NORSRAM1 */
FSMC_NORSRAMCmd(FSMC_Bank1_NORSRAM1, ENABLE);
}
/*
四，定义物理访问地址
*/ //TXEC 240128BDLNW-EY
// T6963C
/*A16=0 -- dat*/
#define LCD_DAT_ADDR (*((volatile unsigned char *) 0x60000001))
/*A16=1 -- cmd*/
#define LCD_CMD_ADDR (*((volatile unsigned char *) 0x60020001))
#define IMAGE 1
#define TEXT 0
#define VISION_PIXEL_LENGTH 240
#define VISION_PIXEL_WIDTH 128
#define FRAME_BUFFER_LENGTH 256
#define FRAME_BUFFER_WIDTH 128
/*
五，定义指令访问接口
*/ //指令&数据读写状态
static void RWCheck(void)
{
while((LCD_CMD_ADDR & 0x03) != 0x03); //低电平忙
}
//数据自动写状态
void CheckAutoWrite(void)
{
while((LCD_CMD_ADDR & 0x08) != 0x08); //低电平忙
}
//屏读/屏考贝出错状态
void CheckScreen(void)
{
while(LCD_CMD_ADDR & 0x40); //1出错,0正确
}
static void WriteDATA(unsigned char Data)
{
RWCheck();
LCD_DAT_ADDR = Data;
}
static unsigned char ReadDATA(void)
{
RWCheck();
return LCD_DAT_ADDR;
}
static void WriteCMD0(unsigned char Comd)
{
RWCheck();
LCD_CMD_ADDR = Comd;
}
static void WriteCMD1(unsigned char Para,unsigned char Comd)
{
WriteDATA(Para);
WriteCMD0(Comd);
}
static void WriteCMD2(unsigned char Par1,unsigned char Par2,unsigned char Comd)
{
WriteDATA(Par1);
WriteDATA(Par2);
WriteCMD0(Comd);
}
/*
六，定义API访问接口
*/
void LCD_Reset(void)
{
GPIO_SetBits(GPIOC, GPIO_Pin_4); //置1 LCDRST = 1;
OSTimeDlyHMSM(0, 0, 0, 10);
GPIO_ResetBits(GPIOC, GPIO_Pin_4); //清0 LCDRST = 0;
OSTimeDlyHMSM(0, 0, 0, 50);
GPIO_SetBits(GPIOC, GPIO_Pin_4); //置1 LCDRST = 1;
OSTimeDlyHMSM(0, 0, 0, 50);
}
void STM32_T6963C_Init(void)
{
unsigned int i;
/* Configure the LCD Control pins --------------------------------------------*/
LCD_CtrlLinesConfig();
/* Configure the FSMC Parallel interface -------------------------------------*/
LCD_FSMCConfig();
/* initialize sequence -------------------------------*/
LCD_Reset();
WriteCMD2(0x00,0x08,0x42); //设置显示图形首地址
WriteCMD2((FRAME_BUFFER_LENGTH/8),0x00,0x43); //设置图形显示区域宽度
WriteCMD0(0x98); //图形显示开
WriteCMD0(0x88); //设定显示方式，图形/文本或的方式
}
void STM32_T6963C_Clear(void)
{
unsigned int i;
WriteCMD2(0x00,0x00,0x24);
WriteCMD0(0xb0);
for(i=0;i<0x2000;i++)
{
WriteCMD1(0x00,0xc0);
}
WriteCMD0(0xb2);
}
//设定显示地址函数
static void LCD_Set_x_y(unsigned char x,unsigned char y,unsigned char mode)
{
unsigned int temp;
temp=(FRAME_BUFFER_LENGTH/8)*y + x/8;
if(mode==IMAGE)
{ //如果图形模式要加上图形区首地址0x0800
temp+=0x0800;
}
WriteCMD2(temp&0xff,temp/256,0x24);
}
void LCD_Paint_dot(unsigned char x,unsigned char y)
{
LCD_Set_x_y(x,y,IMAGE);
WriteCMD0(0xf8|(0x07&(~(x%8))));
}
void LCD_Clear_dot(unsigned char x,unsigned char y)
{
LCD_Set_x_y(x,y,IMAGE);
WriteCMD0(0xf0|(0x07&(~(x%8))));
}
void LCD_Paint_line_x(unsigned char y) //图形方式画一条线
{
unsigned char i;
LCD_Set_x_y(0,y,IMAGE);
for(i=0;i<(VISION_PIXEL_LENGTH/8);i++)
{
WriteCMD1(0xFF, 0xc0); //数据写地址不变
}
}
void LCD_Paint_line_y(unsigned char x)
{
unsigned char i;
for(i=0;i<VISION_PIXEL_WIDTH;i++)
{
LCD_Paint_dot(x,i);
}
}
/*
七，其它接口自行处理
*/