今天写了个HT1621的驱动程序，开发环境keil。
/******************************************************************************
* Include files
******************************************************************************/
#include "gpio.h"
/******************************************************************************
* Local pre-processor symbols/macros ('#define')
******************************************************************************/
/******************************************************************************
* Global variable definitions (declared in header file with 'extern')
******************************************************************************/
/******************************************************************************
* Local type definitions ('typedef')
******************************************************************************/
/******************************************************************************
* Local function prototypes ('static')
******************************************************************************/
/******************************************************************************
* Local variable definitions ('static') *
******************************************************************************/
/******************************************************************************
* Local pre-processor symbols/macros ('#define')
******************************************************************************/
#define Smg_a 0x80
#define Smg_b 0x40
#define Smg_c 0x20
#define Smg_d 0x01
#define Smg_e 0x02
#define Smg_f 0x08
#define Smg_g 0x04
#define Smg_dp 0x10
#define Bmp0Map Smg_a | Smg_b | Smg_c | Smg_d | Smg_e | Smg_f
#define Bmp1Map Smg_b | Smg_c
#define Bmp2Map Smg_a | Smg_b | Smg_d | Smg_e | Smg_g
#define Bmp3Map Smg_a | Smg_b | Smg_c | Smg_d | Smg_g
#define Bmp4Map Smg_b | Smg_c | Smg_f | Smg_g
#define Bmp5Map Smg_a | Smg_c | Smg_d | Smg_f | Smg_g
#define Bmp6Map Smg_a | Smg_c | Smg_d | Smg_e | Smg_f | Smg_g
#define Bmp8Map Smg_a | Smg_b | Smg_c | Smg_d | Smg_e | Smg_f | Smg_g
#define Bmp9Map Smg_a | Smg_b | Smg_c | Smg_d | Smg_f | Smg_g
#define Bmp7Map Smg_a | Smg_b | Smg_c
#define BmpAMap Smg_a | Smg_b | Smg_c | Smg_e | Smg_f | Smg_g
#define BmpBMap Smg_c | Smg_d | Smg_e | Smg_f | Smg_g
#define BmpCMap Smg_a | Smg_d | Smg_e | Smg_f
#define BmpDMap Smg_b | Smg_c | Smg_d | Smg_e | Smg_g
#define BmpEMap Smg_a | Smg_d | Smg_e | Smg_f | Smg_g
#define BmpFMap Smg_a | Smg_e | Smg_f | Smg_g
#define CS_0 Gpio_ClrIO(GpioPortB, GpioPin5)
#define CS_1 Gpio_SetIO(GpioPortB, GpioPin5)
#define WR_0 Gpio_ClrIO(GpioPortB, GpioPin7)
#define WR_1 Gpio_SetIO(GpioPortB, GpioPin7)
#define DA_0 Gpio_ClrIO(GpioPortB, GpioPin8)
#define DA_1 Gpio_SetIO(GpioPortB, GpioPin8)
const unsigned char SegCode[] = {Bmp0Map,Bmp1Map,Bmp2Map,Bmp3Map,Bmp4Map,Bmp5Map,Bmp6Map,Bmp7Map,Bmp8Map,Bmp9Map,BmpAMap,BmpBMap,BmpCMap,BmpDMap,BmpEMap,BmpFMap};
unsigned char DpyNum[6] = {Smg_g,Smg_g,Smg_g,Smg_g,Smg_g,Smg_g}; //显示缓冲区
unsigned int i;
void COMMAND_HT1621(unsigned char comm)
{
unsigned char i;
CS_0;
WR_0;
for(i=0;i<3;i++) //写命令
{
if((0x04<<i)&0x04) DA_1; //100
else DA_0;
WR_0;
WR_1;
}
for(i=0;i<9;i++) //写命令数据
{
if((comm<<i)&0x80) DA_1; //100
else DA_0;
WR_0;
WR_1;
}
CS_1;
}
void HT1621_Display(void)
{
unsigned char i;
CS_0; //片选CS
WR_0;
for(i=0;i<3;i++) //写命令
{
if((0x05<<i)&0x04) DA_1;
else DA_0;
WR_0;
WR_1;
}
for(i=0;i<6;i++) //写地址
{
if((20<<i)&0x20) DA_1; //20对应 SEG地址
else DA_0;
WR_0;
WR_1;
}
for(i=0;i<8;i++) //写数据
{
if((DpyNum[5]<<i)&0x80) DA_1;
else DA_0;
WR_0;
WR_1;
}
for(i=0;i<8;i++) //写数据
{
if((DpyNum[4]<<i)&0x80) DA_1;
else DA_0;
WR_0;
WR_1;
}
for(i=0;i<8;i++) //写数据
{
if((DpyNum[3]<<i)&0x80) DA_1;
else DA_0;
WR_0;
WR_1;
}
for(i=0;i<8;i++) //写数据
{
if((DpyNum[2]<<i)&0x80) DA_1;
else DA_0;
WR_0;
WR_1;
}
for(i=0;i<8;i++) //写数据
{
if((DpyNum[1]<<i)&0x80) DA_1;
else DA_0;
WR_0;
WR_1;
}
for(i=0;i<8;i++) //写数据
{
if((DpyNum[0]<<i)&0x80) DA_1;
else DA_0;
WR_0;
WR_1;
}
CS_1; //释放CS
}
void LCD_Init(void)
{
COMMAND_HT1621(0x01); //SYS EN
COMMAND_HT1621(0x03); //LCD ON
COMMAND_HT1621(0x29); //4 COM 1/3 BIAS
HT1621_Display(); //clear screen
}
/*****************************************************************************
* Function implementation - global ('extern') and local ('static')
******************************************************************************/
/**
******************************************************************************
** \brief Main function of project
**
** \return uint32_t return value, if needed
**
** This sample
**
******************************************************************************/
int32_t main(void)
{
stc_gpio_config_t pstcGpioCfg;
///< 打开GPIO外设时钟门控
Sysctrl_SetPeripheralGate(SysctrlPeripheralGpio, TRUE);
///< 端口方向配置->输出
pstcGpioCfg.enDir = GpioDirOut;
///< 端口驱动能力配置->高驱动能力
pstcGpioCfg.enDrv = GpioDrvH;
///< 端口上下拉配置->无上下拉
pstcGpioCfg.enPuPd = GpioNoPuPd;
///< 端口开漏输出配置->开漏输出关闭
pstcGpioCfg.enOD = GpioOdDisable;
///< 端口输入/输出值寄存器总线控制模式配置->AHB
pstcGpioCfg.enCtrlMode = GpioAHB;
///< GPIO IO PD05初始化（PD05在STK上外接LED）
Gpio_Init(GpioPortD, GpioPin5, &pstcGpioCfg);
Gpio_Init(GpioPortB, GpioPin5, &pstcGpioCfg);
Gpio_Init(GpioPortB, GpioPin7, &pstcGpioCfg);
Gpio_Init(GpioPortB, GpioPin8, &pstcGpioCfg);
LCD_Init();
DpyNum[0] = Smg_a|Smg_d|Smg_g; //"三"
DpyNum[1] = SegCode[1];
DpyNum[2] = SegCode[3];
DpyNum[3] = SegCode[5];
DpyNum[4] = SegCode[7];
DpyNum[5] = SegCode[9];
HT1621_Display(); //刷新LCD
while(1)
{
// ///< 端口PD05设置为高电平（LED点亮）
// Gpio_SetIO(GpioPortD, GpioPin5);
// delay1ms(1000);
//
// ///< 端口PD05设置为低电平（LED关闭）
// Gpio_ClrIO(GpioPortD, GpioPin5);
//
// delay1ms(1000);
}
}
/******************************************************************************
* EOF (not truncated)
******************************************************************************/
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