LM3S811驱动LCD1602.doc

LM3S811驱动LCD1602驱动程序经过一个下午的移植，将LCD1602的驱动程序，从C51移植到LM3S811上。再用了一天时间，将它调试成功。读者可放心使用。呵呵。（是16个引脚的那种LCD1602）#include systeminit.h#define LED GPIO_PIN_5#define LED_PERIPH SYSCTL_PERIPH_GPIOB#define LED_PORT GPIO_PORTB_BASE#define RS GPIO_PIN_0#define RS_PERIPH SYSCTL_PERIPH_GPIOA#define RS_PORT GPIO_PORTA_BASE#define RW GPIO_PIN_1#define RW_PERIPH SYSCTL_PERIPH_GPIOA#define RW_PORT GPIO_PORTA_BASE#define E GPIO_PIN_2#define E_PERIPH SYSCTL_PERIPH_GPIOA#define E_PORT GPIO_PORTA_BASE#define PD GPIO_PIN_0 GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3|GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7#define PD_PERIPH SYSCTL_PERIPH_GPIOD#define PD_PORT GPIO_PORTD_BASEvoid duankouInit(void);/端口初始化设置void LCD_write_command(unsigned char command);/写指令函数void LCD_write_data(unsigned char dat);/写数据函数void lcdzuobiao(unsigned char x,unsigned char y);/LCD坐标void display(unsigned char *p);/显示/void LCD_init(void);/LCD初始化int main(void)jtagWait();/防止JTAG失效clockInit(); duankouInit();LCD_init();while(1)GPIOPinWrite(LED_PORT,LED,0xdf); SysCtlDelay(1000* (TheSysClock / 3000); /约1sGPIOPinWrite(LED_PORT,LED,0xff); SysCtlDelay(1000* (TheSysClock / 3000); /约1slcdzuobiao(0,0);display(LCD1602 TEST);lcdzuobiao(0,1);display(ok); void duankouInit(void) SysCtlPeripheralEnable(LED_PERIPH); GPIOPinTypeGPIOOutput(LED_PORT, LED); GPIOPadConfigSet(LED_PORT,LED,GPIO_STRENGTH_2MA, GPIO_PIN_TYPE_STD_WPU);/设置引脚 SysCtlPeripheralEnable(RS_PERIPH); GPIOPinTypeGPIOOutput(RS_PORT, RS); GPIOPadConfigSet(RS_PORT,RS,GPIO_STRENGTH_2MA, GPIO_PIN_TYPE_STD_WPU);/设置引脚 SysCtlPeripheralEnable(RW_PERIPH); GPIOPinTypeGPIOOutput(RW_PORT, RW); GPIOPadConfigSet(RW_PORT,RW,GPIO_STRENGTH_2MA, GPIO_PIN_TYPE_STD_WPU); SysCtlPeripheralEnable(E_PERIPH); GPIOPinTypeGPIOOutput(E_PORT, E); GPIOPadConfigSet(E_PORT,E,GPIO_STRENGTH_2MA, GPIO_PIN_TYPE_STD_WPU); SysCtlPeripheralEnable(PD_PERIPH); GPIOPinTypeGPIOOutput(PD_PORT, PD); GPIOPadConfigSet(PD_PORT,PD,GPIO_STRENGTH_2MA, GPIO_PIN_TYPE_STD_WPU); void LCD_write_command(unsigned char dat)/写指令函数 SysCtlDelay(1* (TheSysClock / 3000); /约1ms/RS=0;/指令 GPIOPinWrite(RS_PORT,RS,0xfe);/RW=0;/写入GPIOPinWrite(RW_PORT,RW,0xfd);GPIOPinWrite(E_PORT,E,0xfb);/P0=dat;GPIOPinWrite(PD_PORT,PD,dat);SysCtlDelay(1* (TheSysClock / 3000); /约1ms/E=1;/允许GPIOPinWrite(E_PORT,E,0xff);/E=0;SysCtlDelay(1* (TheSysClock / 3000); /约1msGPIOPinWrite(E_PORT,E,0xfb); void LCD_write_data(unsigned char dat)/写数据函数 SysCtlDelay(1* (TheSysClock / 3000); /约1ms/RS=1;/数据GPIOPinWrite(RS_PORT,RS,0xff);/RW=0;/写入GPIOPinWrite(RW_PORT,RW,0xfd);GPIOPinWrite(E_PORT,E,0xfb);/P0=dat; GPIOPinWrite(PD_PORT,PD,dat);SysCtlDelay(1* (TheSysClock / 3000); /约1ms/E=1;/允许GPIOPinWrite(E_PORT,E,0xff);SysCtlDelay(1* (TheSysClock / 3000); /约1ms/E=0;GPIOPinWrite(E_PORT,E,0xfb); /*初始化函数*void LCD_init(void)SysCtlDelay(15* (TheSysClock / 3000); /约15msLCD_write_command(0x38);/设置8位格式，2行，5x7SysCtlDelay(100* (TheSysClock / 3000); /约100msLCD_write_command(0x0c);/整体显示，关光标，不闪烁SysCtlDelay(100* (TheSysClock / 3000); /约100msLCD_write_command(0x06);/设定输入方式，增量不移位SysCtlDelay(100* (TheSysClock / 3000); /约100msLCD_write_command(0x01);/清除屏幕显示SysCtlDelay(100* (TheSysClock / 3000); /约100ms /*LCD坐标函数*void lcdzuobiao(unsigned char x,unsigned char y)if(y=0)LCD_