IAR下STM8S207单片机各模块的无库例程

简介：TIM/ADC/CLOCK/EEPROM/SPI/UART/WWDG/IWDG等不使用库的应用例程，包含SPI双机通讯、定时器的捕获、PWM各功能的实现等；原理图有2个错误：1，晶振电容为22P；2，按键电容位置错；

以下模块全部已调试通过：

#include "ioSTM8S207S8.h"

#include "Includes.h"

#include "Constants.h"

#include "Functions.h"

#include "Globals.h"

/* Author: EighthArmy @ July.2010 */

/*****************************************************

@Fn: ConfigADC10()

@Br: 配置ADC10

@Pa: 无

@Rt: 无

@Sp: 无

*****************************************************/

void ConfigADC10( void ){

ADC_CSR = ( 1 << EOCIE )

+ ( 1 << CH02 ) + ( 1 << CH01 ) + ( 1 << CH00 );

/* 中断使能, 选中CH7 */

ADC_CR2 = ( 1 << ALIGN ); /* 右对齐 */

ADC_CR1 = ( 1 << SPSEL02 ) + ( 1 << SPSEL01 ) + ( 1 << SPSEL00 )

+ ( 1 << CONT ) + ( 1 << ADON );

/* Fadc = Fmaster / 18, 持续转换, ADON写1唤醒ADC */

ADC_CR1 |= ( 1 << ADON ); /* 当ADON为1时再写1则启动转换 */

}

suzhwt 发表于 2010-9-21 15:43

#include "ioSTM8S207S8.h"

#include "Includes.h"

#include "Constants.h"

#include "Functions.h"

#include "Globals.h"

/* Author: EighthArmy @ July.2010 */

/*****************************************************

@Fn: ConfigClock()

@Br: 配置处理器的时钟

@Pa: 无

@Rt: 无

@Sp: 无

*****************************************************/

void ConfigClock( void ){

CLK_ICKR = ( 1 << HSIEN ); /* 使能内部高速RC OSC */

CLK_ECKR = ( 1 << HSEEN ); /* 打开外部晶体振荡器 */

while(( CLK_ECKR & 0x02 ) == 0 ); /* ( 1 << HSERDY ) */

CLK_SWR = F_MASTER_HSE; /* 指定切换的HSE主时钟 */

while(( CLK_SWCR & 0x08 ) == 0 ); /* ( 1 << SWIF ) */

CLK_SWCR |= ( 1 << SWEN ); /* 执行切换 */

CLK_CKDIVR = 0x00; /* Fcpu = Fmaster = 18MHz */

CLK_PCKENR1 = ( 1 << TM1_CLK_ENABLE )

+ ( 1 << TM3_CLK_ENABLE )

+ ( 1 << TM2_CLK_ENABLE )

+ ( 1 << TM4_CLK_ENABLE )

+ ( 1 << UART1_CLK_ENABLE )

+ ( 1 << SPI_CLK_ENABLE );

CLK_PCKENR2 = ( 1 << ADC_CLK_ENABLE );

}

suzhwt 发表于 2010-9-21 15:43

#include "ioSTM8S207S8.h"

#include "Includes.h"

#include "Constants.h"

#include "Functions.h"

#include "Globals.h"

/* Author: EighthArmy @ July.2010 */

#define FIRST_SECURITY_KEY 0xAE

#define SECOND_SECURITY_KEY 0x56

#define ADD_EEPROM_S8 0x4000

/* STM8S207S8的CODE空间为64K,而EEPROM的大小为1536字节,即:3页 * 512节/页 */

/* EEPROM的KEY写入与FLASH的KEY正好相反 */

/*****************************************************

@Fn: InitialFlashReg()

@Br: 初始化闪存寄存器组

@Pa: 无

@Rt: 无

@Sp: 无

*****************************************************/

void InitialFlashReg( void ){

FLASH_CR1 = FLASH_CR1_RESET_VALUE;

FLASH_CR2 = FLASH_CR2_RESET_VALUE;

FLASH_NCR2 = FLASH_NCR2_RESET_VALUE;

FLASH_IAPSR &= ( uchar )(~( 1 << DUL )); /* 清除只读DATA区解锁 */

FLASH_IAPSR &= ( uchar )(~( 1 << PUL )); /* 清除程序区解锁 */

}

/*****************************************************

@Fn: UnlockFlash()

@Br: 解锁存储器

@Pa: 存储器类型: 不是程序区就是只读数据区

@Rt: 无

@Sp: 2个密钥的操作序列正好相反

*****************************************************/

void UnlockFlash( uchar Type ){

if( Type == UNLOCK_FLASH_TYPE ) /* 解锁程序区 */

{

FLASH_DUKR = SECOND_SECURITY_KEY;

FLASH_DUKR = FIRST_SECURITY_KEY;

}

else /* 解锁只读数据区 */

{

FLASH_DUKR = FIRST_SECURITY_KEY;

FLASH_DUKR = SECOND_SECURITY_KEY;

}

}

/*****************************************************

@Fn: LockFlash()

@Br: 锁定存储器

@Pa: 存储器类型:不是程序区就是只读数据区

@Rt: 无

@Sp: 无

*****************************************************/

void LockFlash( uchar Type ){

if( Type == UNLOCK_FLASH_TYPE )

{

FLASH_IAPSR &= ~( 1 << PUL );

}

else

{

FLASH_IAPSR &= ~( 1 << DUL );

}

}

/*****************************************************

@Fn: InitialFlashReg()

@Br: 写入一字节到指定只读数据区[EEPROM]

@Pa: 指定EEPROM地址与数据内容

@Rt: 无

@Sp: 无

*****************************************************/

void WriteByteToFLASH( ulong Address, uchar Data ){

*(( __far uchar * ) Address ) = Data;

}

/*****************************************************

@Fn: Write4BytToFlash()

@Br: 写入4字节到指定EEPROM的连续4字节空间

@Pa: EEPROM地址与LONG型数据内容

@Rt: 无

@Sp: 数据写入方式为小端模式

*****************************************************/

void Write4BytToFlash( ulong Address, ulong Data ){

/* Enable Word Write Once */

FLASH_CR2 |= ( 1 << WPRG );

FLASH_NCR2 &= ( uchar )( ~( 1 << NWPRG ));

*((( __far uchar * )Address ) + 3 ) = *(( uchar * )( &Data )); /* Write one byte - from Highest address*/

*((( __far uchar * )Address ) + 2 ) = *(( uchar * )( &Data ) + 1 ); /* Write one byte*/

*((( __far uchar * )Address ) + 1 ) = *(( uchar * )( &Data ) + 2 ); /* Write one byte*/

*(( __far uchar * )Address ) = *(( uchar * )( &Data ) + 3 ); /* Write one byte - from higher address*/

}

/*****************************************************

@Fn: ReadByteEEPROM()

@Br: 从EEPROM中读取1字节

@Pa: 指定EEPROM地址

@Rt: 读取的CHAR型内容

@Sp: 无

*****************************************************/

uchar ReadByteEEPROM( ulong Address ){

return(*(( __far uchar* ) Address )); /* Read byte */

}

/*****************************************************

@Fn: Read4BytFromFlash()

@Br: 从EEPROM中读取连续的4字节

@Pa: 指定EEPROM地址

@Rt: 读取的LONG内容

@Sp: 小端模式

*****************************************************/

ulong Read4BytFromFlash( ulong Address ){

ulong i;

ulong Temp[2];

Temp[0] = *(( __far uchar * )Address );

Temp[0] |= ( *((( __far uchar * )Address ) + 1 ) << 8 );

Temp[1] = *((( __far uchar * )Address ) + 2 );

Temp[1] |= ( *((( __far uchar * )Address ) + 3 ) << 8 );

i = Temp[0] + ( Temp[1] << 16 );

free( Temp );

return i;

}

/*****************************************************

@Fn: EraseByteFLASH()

@Br: 擦除EEPROM中内容

@Pa: 指定EEPROM地址

@Rt: 无

@Sp: 无

*****************************************************/

void EraseByteFLASH( uint Address ){

*(( __near uchar * ) Address ) = 0x00;

}

void Test( void ){

ulong i;

UnlockFlash( UNLOCK_EEPROM_TYPE );

Write4BytToFlash( ADD_EEPROM_S8, 0x12345678 );

LockFlash( UNLOCK_EEPROM_TYPE );

i = Read4BytFromFlash( ADD_EEPROM_S8 );

i = i;

}

suzhwt 发表于 2010-9-21 15:43

#include "ioSTM8S207S8.h"

#include "Includes.h"

#include "Constants.h"

#include "Functions.h"

#include "Globals.h"

/* Author: EighthArmy @ July.2010 */

/*****************************************************

@Fn: ConfigPortE()

@Br: 配置端口E

@Pa: 无

@Rt: 无

@Sp: 无

*****************************************************/

void ConfigPortE( void ){

PE_DDR = ( 1 << PE6 ) + ( 1 << PE5 );

PE_CR1 = 0;

PE_CR2 = 0;

}

/*****************************************************

@Fn: ConfigGPIO()

@Br: 配置端口

@Pa: 无

@Rt: 无

@Sp: 无

*****************************************************/

void ConfigGPIO( void ){

PG_DDR = 0x03; /* 输出 */

PG_CR1 = 0x03; /* 推挽模式 */

PG_CR2 = 0x00; /* 速度2MHz */

ConfigPortE();

}

suzhwt 发表于 2010-9-21 15:44

#include "ioSTM8S207S8.h"

#include "Includes.h"

#include "Constants.h"

#include "Functions.h"

#include "Globals.h"

/* Author: EighthArmy @ July.2010 */

/*****************************************************

@Fn: ConfigIWDG()

@Br: IWDG初始化

@Pa: 无

@Rt: 无

@Sp: 需要选择字支持

*****************************************************/

void ConfigIWDG( void ){

IWDG_KR = IWDG_KEY_ACCESS; /* 写入修改值使能键值 */

IWDG_PR = ( 1 << IWDG_PR02 ) + ( 1 << IWDG_PR01 ); /* 1.02s时长 */

IWDG_RLR = 0xFF;

IWDG_KR = IWDG_KEY_REFRESH; /* 写入后恢复到保护状态 */

IWDG_KR = IWDG_KEY_EBABLE; /* 启动看门狗 */

}

/*****************************************************

@Fn: ClearIWDG()

@Br: 清看门狗IWDG

@Pa: 无

@Rt: 无

@Sp: 无

*****************************************************/

void ClearIWDG( void ){

IWDG_KR = IWDG_KEY_REFRESH; /* 清看门狗 */

}

suzhwt 发表于 2010-9-21 15:44

#include "ioSTM8S207S8.h"

#include "Includes.h"

#include "Constants.h"

#include "Functions.h"

#include "Globals.h"

/* Author: EighthArmy @ July.2010 */

/*****************************************************

@Fn: ConfigInterrupt()

@Br: 配置中断输入口

@Pa: 无

@Rt: 无

@Sp: 无

*****************************************************/

void ConfigInterrupt( void ){

PA_DDR &= ~( 1 << PA6 ); /* 配置为输入口 */

PA_CR1 = ( 1 << C16 ); /* 配置上拉电阻 */

PA_CR2 = ( 1 << C26 ); /* 使能中断 */

CPU_CCR |= ( 1 << I1 ) + ( 1 << I0 ); /* 改为最高优先级 */

EXTI_CR1 = 0; /* 下降沿和低电平触发 */

}

suzhwt 发表于 2010-9-21 15:44

#include "ioSTM8S207S8.h"

#include "Includes.h"

#include "Constants.h"

#include "Functions.h"

#include "Globals.h"

/* Author: EighthArmy @ July.2010 */

/*****************************************************

@Fn: ConfigSPI()

@Br: 配置SPI接口

@Pa: 工作模式

@Rt: 无

@Sp: 无

*****************************************************/

void ConfigSPI( uchar WorkMode ){

SPI_CR1 = 0x00;

SPI_CR2 = ( uchar )( 1 << SSM ); /* SSI位的值代替NSS脚控制从设备的选择 */

SPI_ICR = 0x00;

SPI_SR = ( uchar )( 1 << SPI_TXE );

SPI_CR1 = ( uchar )(( uchar )( 1 << LSBFIRST )

+ ( uchar )( 1 << BR02 ) /* 波特率 = 2 ^ ( BR[2:0] + 1 ) = Fmaster/32 */

+ ( uchar )( 1 << SPI_CPOL )

+ ( uchar )( 1 << SPI_CPHA ));

if( WorkMode == SPI_MASTER_MODE )

{

SPI_CR2 |= ( uchar )( 1 << SSI );

SPI_CR1 |= ( uchar )( 1 << MSTR );

}

else

{

SPI_CR2 &= ~( uchar )( 1 << SSI );

SPI_CR1 &= ~( uchar )( 1 << MSTR );

}

SPI_ICR |= ( uchar )( 1 << RXIE ); /* 使能SPI接收中断 */

}

/*****************************************************

@Fn: EnablesSPI()

@Br: SPI状态

@Pa: 不是打开就是关闭

@Rt: 无

@Sp: 无

*****************************************************/

void EnablesSPI( uchar Type ){

if( Type == SPI_ENABLES )

{

SPI_CR1 |= ( uchar )( 1 << SPE );

}

else

{

SPI_CR1 &= ~( uchar )( 1 << SPE );

}

}

/*****************************************************

@Fn: TransmitBySPI()

@Br: 从SPI传输数据

@Pa: 数据组冲以及发送帧的长度

@Rt: 无

@Sp: 无

*****************************************************/

void TransmitBySPI( uchar *Buff, uchar Len ){

for( uchar i = 0; i < Len; i++ )

{

SPI_DR = *Buff++;

while( SPI_SR & ( 1 << TXE ) == 0 );

}

}

suzhwt 发表于 2010-9-21 15:44

#include "ioSTM8S207S8.h"

#include "Includes.h"

#include "Constants.h"

#include "Functions.h"

#include "Globals.h"

/* Author: EighthArmy @ July.2010 */

/* Excel2000 expression as: v = sin( DEGREE * PI()/180 ) */

/* 0 degree = 0x024A / 2 = 0x0125 = 293 */

/* 10 degree = 0x0125 + sin10 = 344 */

#define SIN_WAVE_LEN 36

const uint SIN_TABLE[SIN_WAVE_LEN] = {

9376, 9312, 9088, 8752, 8272, 7696,