移植了stm32的tm1638驱动到stm8但是缺无法获取键值
时间：10-02
整理：3721RD
点击：
程序如下
#include "stm8s.h" //#include "stm32f10x.h"
/*********************define and global variables*********************************************/
//#define GPIO_Pin_TypeDef GPIO
#define STB GPIO_PIN_0 //chip-select line
#define CLK1 GPIO_PIN_1 //clock line
#define DIO GPIO_PIN_2 //data line
#define Set(x) GPIO_WriteHigh(GPIOB,(x)) //Sets the selected data port bits
#define Reset(x) GPIO_WriteLow(GPIOB,(x)) //Resets the selected data port bits
#define Get(x) GPIO_ReadInputPin(GPIOB,(x))==SET //Read the specified input port pin
uint16_t const tm_dat[2][14]={{'0','1','2','3','4','5', //the char and its segment code
'6','7','8','9','.','-','_',' '},
{0x3F,0x06,0x5B,0x4F,0x66,0x6D,
0x7D,0x07,0x7F,0x6F,0x80,0x40,
0x08,0x00}};
/***********************************************************************************************
*Function Name: RCC_Config
*Purpose : Configration Clock
***********************************************************************************************/
void RCC_Config(){
CLK_HSECmd(ENABLE);
}
/***********************************************************************************************
*Function Name: GPIO_Config
*Purpose : Configration GPIO
***********************************************************************************************/
void GPIO_Config(){
GPIO_Init(GPIOB, GPIO_PIN_0, GPIO_MODE_OUT_PP_HIGH_FAST);
GPIO_Init(GPIOB, GPIO_PIN_1, GPIO_MODE_OUT_PP_HIGH_FAST);
GPIO_Init(GPIOB, GPIO_PIN_2, GPIO_MODE_OUT_PP_HIGH_FAST);
GPIO_Init(GPIOD, GPIO_PIN_7, GPIO_MODE_OUT_PP_LOW_FAST);
}
/***********************************************************************************************
*Function Name: Write_Byte
*Purpose : Write one byte to the data port
*params : byte -------8-bits byte
*return : none
***********************************************************************************************/
void Write_Byte(uint8_t byte){
uint8_t i=0;
for(i=0;i<8;i++){
Reset(CLK1);
if(byte&0x01){
Set(DIO);
}else{
Reset(DIO);
}
Set(CLK1);
byte>>=1;
}
}
/***********************************************************************************************
*Function Name: Read_Byte
*Purpose : Read one byte from data port
*params : none
*return : the 8-bits byte which is read from data port
***********************************************************************************************/
int8_t Read_Byte(){
uint8_t i=0;
uint8_t temp=0x00;
Reset(STB);
for(i=0;i<8;i++){
Reset(CLK1);
temp>>=1;
if(Get(DIO)){
temp|=0x80;
}
Set(CLK1);
}
return temp;
}
/*unsigned char TM1638_Read(void) //?áêy?Yoˉêy
{
unsigned char i;
unsigned char temp=0;
Set(DIO); //éè?aê?è?
for(i=0;i<8;i++)
{
temp>>=1;
Reset(CLK1);
if(DIO)
temp|=0x80;
Set(CLK1);
}
return temp;
}*/
/***********************************************************************************************
*Function Name: Write_Cmd
*Purpose : Write a conmand to the data port
*params : cmd -------8-bits byte,the conmand,check the data sheet to find the conmand
*return : none
***********************************************************************************************/
void Write_Cmd(uint8_t cmd){
Set(STB);
Reset(STB);
Write_Byte(cmd);
}
/***********************************************************************************************
*Function Name: Read_Key
*Purpose : Read the key number which has been pressed
*params : none
*return : the number of the key. 0-8. "return 0" represents no key has been pressed.
***********************************************************************************************/
int8_t Read_Key(){
uint8_t i=0;
uint8_t key1=0x00;
uint16_t key2=0x00;
Write_Cmd(0x42);
Set(DIO); //this is obligatory, check the data sheet,GPIO
for(i=0;i<4;i++){
key1=Read_Byte();
key2|=(key1<<i);}
key2>>=1;
for(i=0;i<8;i++){
if(0x01<<i==key2)return i+1;
}
return 0;
}
/*unsigned char Read_key(void)
{
uint8_t c[4],i,key_value=0;
Reset(STB);
Write_Cmd(0x42);
for(i=0;i<4;i++)
c=TM1638_Read();
Set(STB);
for(i=0;i<4;i++)
key_value|=c<<i;
for(i=0;i<8;i++)
if((0x01<<i)==key_value)
break;
return i;
}*/
/***********************************************************************************************
*Function Name: Write_Dat
*Purpose : Write data to the location specified
*params : addr ------the address,0x00 to 0x0f
dat ------the data,segment code
*return : none
***********************************************************************************************/
void Write_Dat(uint8_t addr,uint8_t dat){
Write_Cmd(0x44);
Write_Cmd(0xc0|addr);
Write_Byte(dat);
}
/***********************************************************************************************
*Function Name: TM1638_SendData
*Purpose : Write data to the location specified
*params : i ------the bit code of digtal tube,0 to 7
str ------the string,the char which was not in tm_data will be replace with "''".
*return : none
***********************************************************************************************/
void TM1638_SendData(uint8_t i,char * str){
int j=0,k=0;
unsigned char chr;
for(;i<8;i++){
k=0;
for(j=0;j<14;j++){
if(*str==tm_dat[0][j]){
chr=tm_dat[1][j];
k=1;
break;
}
}
if(k==0){
chr=0x00;
}
if(*(str+1)=='.'){
chr|=0x80;
Write_Dat(i*2,chr);
str++;
}else{
Write_Dat(i*2,chr);
}
str++;
if(*str=='\0')break;
}
}
/***********************************************************************************************
*Function Name: TM1638_Init
*Purpose : the initialization of tm1638
*params : none
*return : none
***********************************************************************************************/
void TM1638_Init(){
int i=0;
RCC_Config();
GPIO_Config();
Write_Cmd(0x8a);
Write_Cmd(0x40);
Reset(STB);
Write_Byte(0xc0);
for(i=0;i<16;i++)
Write_Byte(0x00);
Set(STB);
}
这个程序可以驱动tm1638显示却无法获得键值，本人菜鸟还请各位大神指点
你是如何显示的 能否贴出代码，共同研究。