IAR下STM8S207单片机各模块的无库例程
[i=s] 本帖最后由 suzhwt 于 2010-9-21 15:57 编辑 [/i]
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,
??????? 7040,6288,5504,4688,3872,3088,
??????? 2352,1680,1104,? 624,? 288,?? 64,
?????????? 0,9312?????????
};
volatile uchar ucSinIndex = 0;
#pragma vector = TM3CC_VECT
__interrupt void TIM3_UPDATE_ISR( void ){
? if( TIM3_SR1 & ( 1 << CC1IF ))
??? {
??? TIM3_SR1 &= ~( 1 << CC1IF );????????????????
??? LoadValueOfPWM();
/* 固定脉宽试验 */?
//? TIM3_CCR1H = ( uchar )( PERCENT_080 >> 8 );????????
//? TIM3_CCR1L = ( uchar )( PERCENT_080 );
????????????????? /* F = 30Hz,Duty = 80% High-level */
??? }
}
/*****************************************************
@Fn: ConfigT3_PWM2()
@Br: Timer3的初始化为PWM模式1?
@Pa: 无
@Rt: 无
@Sp:
???? Timer2,Timer3,Timer5 是通用16位定时器.
*****************************************************/
void ConfigT3_PWM2( void ){
? TIM3_PSCR = ( 1 << PSC02 );
??????????????????????? /* Configure TIM3 prescaler = 4 */
??????????????????????? /* Fck_cnt = Fck_psc / 2 ^[3:0] */
?
? TIM3_CCMR1 = ( 1 << OC1M02 ) + ( 1 << OC1M01 ) + ( 1 << OC1M00 )
??????????????? + ( 1 << OC1PE );????????????????????
??????????????????????? /* 输出比较1预装载使能,PWM模式2 */
? TIM3_CCER1 = ( 1 << CC1P ) + ( 1 << CC1E );????????
??????????????????????? /* OC1低电平有效,使能TIM3_CH1引脚功能 */
?
? TIM3_ARRH = 0x2F;???? /* 确定频率 */
? TIM3_ARRL = 0xFF;????
? TIM3_CNTRH = 0x24;???????
? TIM3_CNTRL = 0xA0;
??????????????????????? /* ARR一定要大于CNT,否则输出波形不正确? */
? TIM3_CCR1H = 0;?????? /* 初始化TIM3_CH1引脚缓冲器为零? */
? TIM3_CCR1L = 0;
?
? TIM3_SR1 &= ~( 1 << CC1IF );????????????? /* 清空中断标志 */
?
? TIM3_CR1 = ( 1 << ARPE ) + ( 1 << CEN );? /* 自动重载及计数器使能 */
? TIM3_IER = ( 1 << CC1IE );??????????????? /* 使能中断 */
}
/*****************************************************
@Fn: LoadValueOfPWM()
@Br: 载入波表值?
@Pa: 无
@Rt: 无
@Sp:
???? Timer2,Timer5 是通用16位定时器.
*****************************************************/
void LoadValueOfPWM( void ){
? TIM3_CCR1H = ( uchar )( SIN_TABLE[ ucSinIndex ] >> 8 );??? /* 2.5赫正弦波 */????
? TIM3_CCR1L = ( uchar )( SIN_TABLE[ ucSinIndex ] );
? ucSinIndex++;
? if( ucSinIndex >= SIN_WAVE_LEN )
??? {
??? ucSinIndex = 0;
??? }
}
suzhwt 发表于 2010-9-21 15:45
#include "ioSTM8S207S8.h"
#include "Includes.h"
#include "Constants.h"
#include "Functions.h"
#include "Globals.h"
/* Author: EighthArmy @ July.2010 */
/*****************************************************
@Fn: ConfigTimer1()
@Br: 捕获TIM1CH1[PC1]引脚上按键产生的脉冲宽度.
@Pa: 无
@Rt: 无
@Sp: 无
????? * 时钟在CLK_PCKENR1中被关闭时所有设置不能写入到寄存器中.
????? * Timer1 是高级16位定时器.
????? * 向下计数能得到精确的时间长度值.
*****************************************************/
void ConfigTimer1( void ){
? PC_DDR &= ~( 1 << PC1 );??????? /* 配置为输入口 */
? PC_CR1 = ( 1 << C11 );????????? /* 配置上拉电阻 */
?
? TIM1_PSCRH = ( 1 << PSC11 ) + ( 1 << PSC10 );
? TIM1_PSCRL = ( 1 << PSC07 ) + ( 1 << PSC06 )
??????????????? + ( 1 << PSC05 ) + ( 1 << PSC02 )
????????????????? + ( 1 << PSC01 ) + ( 1 << PSC00 );???
????????????????????????????????? /* 分频率为PSCR[15:0] + 1 = 1000 */
? TIM1_CNTRH = 0x46;
? TIM1_CNTRL = 0x50;
? TIM1_ARRH = 0x46;
? TIM1_ARRL = 0x50;
??????????????????????? /*
??????????????????????????????? 18,000,000
??????????????????????? CNTR = ------------ = 0x4650?
????????????????????????????????? 1,000
??????????????????????? */????????????????
? TIM1_CR2 = 0;?????????????????? /* CC1输入管脚连到TIM1_CH1 */
?
? TIM1_CCMR1 = ( 1 << CC1S00 );?? /* 连接到TIM1_CH1引脚,无滤波,无分频 */
????? /* 注：CC1S仅在通道关闭时(TIM1_CCER1寄存器的CC1E=0)才是可写的. */?
?
? TIM1_CCER1 = ( 1 << CC1P )????? /* 下降沿有效 */
??????????????? + ( 1 << CC1E );? /* 捕获使能 */????
? TIM1_SR1 &= ~( 1 << CC1IF );??? /* 清除捕获标志 */
? TIM1_SR2 &= ~( 1 << CC1OF );??? /* 清除重复捕获标志 */
? TIM1_IER = ( 1 << CC1IE );????? /* 捕获中断使能 */
? TIM1_CR1 = ( 1 << DIR )???????? /* 向下计数 */
??????????????? + ( 1 << CEN );?? /* 使能计数 */
}
/*****************************************************
@Fn: CalculatePulseLen()
@Br: 计算脉冲的时间长度
@Pa: 无
@Rt: 无
@Sp: 无
*****************************************************/
void CalculatePulseLen( void ){
? ulong Temp;
? uchar Buff[7];
? if( uiTenor & TM1_CAP_FLAG )
??? {
??? if( uiCaptureT1[0] <= uiCaptureT1[1] )
????? {
????? uiCaptureT1[0] += PRELOAD_VALUE_1S;
????? }
??? Temp = uiCaptureT1[0] - uiCaptureT1[1];??? /* 捕获计数长度 */
????? /*
????? 计算脉宽
????????? 脉冲时钟 clk = 捕获值 * 分频倍率?
?????????????????????? = i * 1000??
?????
?????????????? 脉冲时钟???? 11,995,575
????????? t = ---------- = ------------ = 0.66642 s
????????????? 系统时钟????? 18,000
????? */
??? Temp = Temp * 1000;
??? Temp = Temp / 18;???????????????? /* 放大1,000倍 */
???
??? Buff[6] = Temp % 10;
??? Temp /= 10;
??? Buff[5] = Temp % 10;
??? Temp /= 10;
??? Buff[4] = Temp % 10;
??? Temp /= 10;
??? Buff[3] = Temp % 10;
??? Temp /= 10;
??? Buff[2] = Temp % 10;
??? Temp /= 10;
??? Buff[1] = Temp % 10;
??? Temp /= 10;
??? Buff[0] = Temp % 10;
???
??? memcpy( &ucCapBuff[0],&Buff[0],SEVEN_LEN );
???
??? uiTenor &= ~TM1_CAP_FLAG;?
??? }
? free( Buff );
}
suzhwt 发表于 2010-9-21 15:45
#include "ioSTM8S207S8.h"
#include "Includes.h"
#include "Constants.h"
#include "Functions.h"
#include "Globals.h"
/* Author: EighthArmy @ July.2010 */
/* Timer4,Timer6 */
/*****************************************************
@Fn: ConfigTimer4()
@Br: Timer4初始化为定时器方式
@Pa: 无
@Rt: 无
@Sp: 计算CNT值的方法与其他处理器的不一样.
???? Timer4,Timer6 是基本8位定时器.
*****************************************************/
void ConfigTimer4( void ){
? TIM4_PSCR = ( 1 << PSC02 ) + ( 1 << PSC01 ) + ( 1 << PSC00 );????
??????????????????????? /* Configure TIM4 prescaler = 128 */
??????????????????????? /* Fck_cnt = Fck_psc / 2 ^[2:0] */
?
? TIM4_ARR = 0xFF;????? /* TIM4的自动装载寄存器 */
? TIM4_CNTR = 0xFF;???? /* TIM4的计数器 */
??????????????????????? /*
??????????????????????????????? 18,000
??????????????????????? CNTR = ------------ = 140,625??
????????????????????????????????? 128
?
??????????????????????? 中断一次的时间
??????????????????????? t = 256 / 140,625 = 0.0018204 s
??????????????????????? */
? TIM4_CR1 = ( 1 << ARPE ) + ( 1 << CEN );? /* 允许自动重装载,使能计数器 */
? TIM4_IER = ( 1 << UIE );????????????????? /* 允许更新中断 */
}
#include "ioSTM8S207S8.h"
#include "Includes.h"
#include "Constants.h"
#include "Functions.h"
#include "Globals.h"
/* Author: EighthArmy @ July.2010 */
/* Timer2,Timer5 */
/*****************************************************
@Fn: ConfigTimer2()
@Br: Timer2初始化为定时器方式
@Pa: 无
@Rt: 无
@Sp: 计算CNT值的方法与其他处理器的不一样.
???? Timer2,Timer5 是通用16位定时器.
*****************************************************/
void ConfigTimer2( void ){
? TIM2_PSCR = ( 1 << PSC03 ) + ( 1 << PSC01 );????
??????????????????????? /* Configure TIM2 prescaler = 1024 */
??????????????????????? /* Fck_cnt = Fck_psc / 2 ^[3:0] */
?
? TIM2_ARRH = 0x44;???? /* TIM2的自动装载寄存器 */
? TIM2_ARRL = 0xAA;
? TIM2_CNTRH = 0x44;??? /* TIM2的计数器 */
? TIM2_CNTRL = 0xAA;
??????????????????????? /*
??????????????????????????????? 18,000
??????????????????????? CNTR = ------------ = 0x44AA?
????????????????????????????????? 1024
??????????????????????? */
? TIM2_CR1 = ( 1 << ARPE ) + ( 1 << CEN );? /* 允许自动重装载,使能计数器 */
? TIM2_IER = ( 1 << UIE );????????????????? /* 允许更新中断 */
}
suzhwt 发表于 2010-9-21 15:45
#include "ioSTM8S207S8.h"
#include "Includes.h"
#include "Constants.h"
#include "Functions.h"
#include "Globals.h"
/* Author: EighthArmy @ July.2010 */
/*****************************************************
@Fn: ConfigUART1()
@Br: 配置USART1
@Pa: 无
@Rt: 无
@Sp: 无
*****************************************************/
void ConfigUART1( void ){
? UART1_SR = ( 1 << RXNE );???? /* 使能接收 */?
? UART1_CR1 = 0;??????????????? /* 1个起始位,8个数据位,*/
? UART1_CR3 = 0;??????????????? /* 1个停止位 */
? UART1_CR4 = 0;
? UART1_CR5 = 0;
?
??????? /*
?????????????????????? Fmaster???? 18,000
??????? Baud rate = ------------ = ---------- = 7500 = 0x1D4C
????????????????????? UART_DIV?????? 2400
??????? UART_BRR1 = UART_DIV[11:4]
??????? UART_BRR2 = UART_DIV[15:12] | UART_DIV[3:0]
??????? */
? UART1_BRR2 = 0x1C;
? UART1_BRR1 = 0xD4;?????????? /* 2400bps @ 18MHz,先写BRR2再写BRR1 */
?
? UART1_CR2 = ( 1 << RIEN ) + ( 1 << TEN ) + ( 1 << REN );
????????????????????????????? /* 接收中断使能,发送与接收使能 */?
}
/*****************************************************
@Fn: TransmitFrame()
@Br: 从UART1发送数据
@Pa: 缓冲指针及长度
@Rt: 无
@Sp: 无
*****************************************************/
void TransmitFrame( uchar *Buff,uchar Len ){??????
? for( uchar i = 0; i < Len; i++ )
??? {
??? while(( UART1_SR & ( 1 << TXE )) == 0 );??
??? UART1_DR = *Buff++;??
??? _NOP();
??? }
}
suzhwt 发表于 2010-9-21 15:46
#include "ioSTM8S207S8.h"
#include "Includes.h"
#include "Constants.h"
#include "Functions.h"
#include "Globals.h"
/* Author: EighthArmy @ July.2010 */
/*
对窗口看门狗的应用理解:
??? 在一个程序线程中,如果在特定的时间内,操作没有被完
成,则由该窗口看门狗实现复位,而不是传统操作上的死机,
例如,
??? 在由CPU对一个芯片进行读数据的操作过程中,因硬件的
问题导致CPU在此操作中死循环而无法退出,那么,可以由这个
WWDG设置一个时间级限,如果在此极限中若没有将WWDG停止,
则复位发生.
*/
/*****************************************************
@Fn: ConfigWWDG()
@Br: WWDG初始化?
@Pa: 无
@Rt: 无
@Sp: 无
*****************************************************/
void ConfigWWDG( void ){
? WWDG_WR = 0x7F;
? WWDG_CR = ( uchar )(( 1 << WDGA ) + 0x7F );
? WWDG_WR = 0x6F;
}
/*****************************************************
@Fn: RefreshWWDG()
@Br: 更新WWDG
@Pa: 无
@Rt: 无
@Sp: 无
*****************************************************/
void RefreshWWDG( void ){
? uchar Temp;
? Temp = WWDG_CR & ~( 1 << WDGA );
? if( Temp < WWDG_WR )
??? {
??? WWDG_CR = ( uchar )(( 1 << WDGA ) | 0x7F );?
??? }
}
suzhwt 发表于 2010-9-21 15:46
#include "ioSTM8S207S8.h"
#include "Includes.h"
#include "Constants.h"
#include "Functions.h"
#include "Globals.h"
/* Author: EighthArmy @ July.2010 */
#pragma vector = EXTI_A_VECT
__interrupt void PA_ISR( void ){
? if(( PA_IDR & ( 1 << IDR6 )) == 0 )??
??? {????
??? uiTenor |= PA6_INT_FLAG;?
??? }
}
#pragma vector = TM1CC_VECT
__interrupt void TIM1_CAPTURE_ISR( void ){
? if( TIM1_SR1 & ( 1 << CC1IF ))
??? {
??? if( TIM1_CCER1 & ( 1 << CC1P ))?? /* 下降沿产生的中断 */
????? {
????? uiCaptureT1[0] = ( TIM1_CCR1H << 8 );
????? uiCaptureT1[0] |= TIM1_CCR1L;?
?????
????? TIM1_CCER1 &= ~( 1 << CC1P );?? /* 改为上升沿捕获 */
????? }
??? else????????????????????????????? /* 上升沿产生的中断 */???
????? {
????? uiCaptureT1[1] = ( TIM1_CCR1H << 8 );
????? uiCaptureT1[1] |= TIM1_CCR1L;??????
?????
????? TIM1_CCER1 |= ( 1 << CC1P );??? /* 改为下降沿捕获 */
????? uiTenor |= TM1_CAP_FLAG;??????? /* 一段低电平时间捕获 */
????? }
??? }
}
#pragma vector = TM2OV_VECT
__interrupt void TIM2_UPDATE_ISR( void ){
? if( TIM2_SR1 & ( 1 << UIF ))
??? {
??? TIM2_SR1 &= ~( 0x01 );
???
??? uiTenor |= TIME2_FLAG;
??? }
}
#pragma vector = TM4OV_VECT
__interrupt void TIM4_UPDATE_ISR( void ){
? if( TIM4_SR & ( 1 << UIF ))
??? {
??? TIM4_SR &= ~( 0x01 );
?
??? uiTenor |= TIME4_FLAG;
??? }
}
#pragma vector = UART1RX_VECT
__interrupt void UART1RX_ISR( void ){
? ucBuff[ ucIndex++ ] = UART1_DR;
?
? if( ucIndex >= 2 )
??? {
??? if( ucIndex >= ucBuff[1] )
????? {
????? ucIndex = 0;
????? uiTenor |= UART1_RX_FLAG;
????? }
??? }
}
#pragma vector = ADC_VECT
__interrupt void ADC10_ISR( void ){
? ADC_CSR &= ~( 1 << EOC );
?
? uiADC = ( ADC_DRH << 8 );
? uiADC |= ADC_DRL;
}
#pragma vector = SPI_VECT
__interrupt void SPI_ISR( void ){
? if( SPI_SR & ( 1 << SPI_RXNE ))
??? {
??? SPI_DR = SPI_DR;
????
??? }
}
suzhwt 发表于 2010-9-21 15:46
#include "ioSTM8S207S8.h"
#include "Includes.h"
#include "Constants.h"
#include "Functions.h"
#include "Globals.h"
/* Author: EighthArmy @ July.2010 */
/*****************************************************
@Fn: ConfigCPU()
@Br: 配置处理器及外围
@Pa: 无
@Rt: 无
@Sp: 无
*****************************************************/
void ConfigCPU( void ){
? _DI();
? ConfigClock();
?
? ConfigGPIO();
? ConfigInterrupt();
?
? ConfigTimer1();
? ConfigTimer2();
? ConfigT3_PWM2();
? ConfigTimer4();
? ConfigADC10();
?
? ConfigUART1();
? InitialFlashReg();
?
? //ConfigWWDG();
? _EI();
}
suzhwt 发表于 2010-9-21 15:47
#include "ioSTM8S207S8.h"
#include "Includes.h"
#include "Constants.h"
#include "Functions.h"
#include "Variables.h"
/* Author: EighthArmy @ July.2010 */
void main( void ){
? uint i = 0;
? ConfigCPU();
? while( 1 )
??? {
??? if( uiTenor & TIME2_FLAG )
????? {
????? PG_ODR ^= 0x01;
????? PE_ODR ^= ( 1 << PE5 );
????? uiTenor &= ~TIME2_FLAG;?
????? }
???
??? if( uiTenor & PA6_INT_FLAG )
????? {
????? PG_ODR ^= 0x02;?
?????
????? ucBuff[0] = 0x11;
????? ucBuff[1] = 0x22;
????? ucBuff[2] = 0x33;
????? ucBuff[3] = 0x44;
????? ucBuff[4] = 0x55;
????? ucBuff[5] = 0x66;
????? ucBuff[6] = 0x77;
????? ucBuff[7] = 0x88;
????? TransmitFrame( &ucBuff[0],8 );
????? uiTenor &= ~PA6_INT_FLAG;
????? }
???
??? if( uiTenor & TIME4_FLAG )
????? {
????? i++;
????? if( i >= 100 )
??????? {
??????? PE_ODR ^= ( 1 << PE6 );
??????? i = 0;
??????? }
????? uiTenor &= ~TIME4_FLAG;
????? }
??? Comm1Events();
??? CalculatePulseLen();
???
??? //RefreshWWDG();????? /* 清窗口看门狗,窗口看门狗在硬件复位 */
??? }
}
压缩包中的SPI模块包含主从通讯，可以实现主从SPI方式通讯。
相比之下，速度要比UART爽多了。
学STM8的朋友千万不要错过啊！！这都是心血和经验啊！
