1. STM8S系列程序示例
/* MAIN.C file
* Function：實現按鍵S1控制LED和蜂鳴器
* Copyright (c) 2002-2005 STMicroelectronics
*/
#include "stm8s105c4.h"
_Bool LED1 @PA_ODR:6; //定義PA.6輸出寄存器為LED1
_Bool Beep @PD_ODR:4; //定義PD.4輸出寄存器為蜂鳴器
_Bool S1 @PD_IDR:2; //定義PD.2輸入寄存器為按鍵
//I/O初始化
void GPIO_Init(void)
{
PA_DDR = 0x40; //PA.6推挽輸出
PA_CR1 = 0x40;
PD_DDR = 0x10;//PD.2上拉輸入 、PD.4推挽輸出
PD_CR1 = 0x14;
}
main()
{
GPIO_Init();
while(1)
{
if(S1==0) //如果有按鍵則燈亮，蜂鳴器響
{
LED1 = 1;
Beep = 1;
}
else
{
Beep = 0;
LED1 = 0;
}
}
}
2. 誰用IAR給 STM8S003F3 單片機用C語言寫個程序 用一個按鍵控制一個LED
這個很簡單吧 做一個變數然後取反不就行了嘛
這是最簡單的基礎知識了。
3. 本人正在學習stm8，使用IAR編程，求代碼把蜂鳴器弄響
你用的是「 ST MCU 三合一體驗套件 」 裡面的那套STM8S的開發板嚒·？
如果是的話可以參考以下常式：是在微雪電子那采購的官方套件光碟中的示常式序，不知道能不能幫到你！ 有分的話給點分用用，嘿嘿！
/*============================================================================*/
/* PROJECT: DRIVING BUZZER THROUGH STM8 TIMER2 PWM DEMO SYSTEM */
/* MODULE: main.c */
/* COMPILER: STM8 Cosmic C Compiler */
/* DATE: Feb 2009 */
/*----------------------------------------------------------------------------*/
/* DESCRIPTION: Demonstration firmware for STM8 Mini Kit */
/* playing a tune through its buzzer. */
/*============================================================================*/
/******************************************************************************
*
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
* TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
* DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*
* COPYRIGHT 2008 STMicroelectronics
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "STM8S105C_S.h" /* Registers and memory mapping file. */
/******************************************************************************/
/* Macro definitions
/******************************************************************************/
/* Music instruction and note coding. */
#define _END_ 0xFF /* Music END. */
#define _PAUSE_ 0xFE /* Pause between different tunes. */
/* Note tone definition...... */
#define _FA0 0x00 /* FA- */
#define _SOL0 0x01 /* SOL- */
#define _LA0 0x02 /* LA- */
#define _SI0 0x03 /* SI- */
#define _DO 0x04 /* DO */
#define _RE 0x05 /* RE */
#define _MI 0x06 /* MI */
#define _FA 0x07 /* FA */
#define _SOL 0x08 /* SOL */
#define _LA 0x09 /* LA */
#define _SI 0x0A /* SI */
#define _DO2 0x0B /* DO+ */
#define _M 0x0C /* MUTE */
#define _RE2 0x0D /* RE+ */
#define _SOL2 0x0E /* SOL+ */
#define _FAd 0x0F /* FA# */
/* Note length definition...... */
#define sq 0x10 /* Semiquaver notes. */
#define q 0x20 /* Quaver notes. */
#define qp 0x30 /* 1.5 quaver notes. */
#define c 0x40 /* Crotchet notes. */
#define cn 0x60 /* 1.5 crotchet notes.*/
#define m 0x80 /* Minim notes. */
/*a note is defined here by a combination of a tone and a length, both parts
being easily retrievable with the AND binary operator: note = tone+length,
and tone&length=0*/
/******************************************************************************/
/* RAM SEGMENT variables */
/******************************************************************************/
/* Global variable used to store the ADC result. */
unsigned int AD_Value;
/* Global variable used to store the Key pressed for changing octave. */
unsigned char Flag_Octave_Chg;
/* Global variable used as index for the array of notes: position in the tune.*/
unsigned int current_note = 0;
/* Global variable used as index for the array of notes. */
unsigned char c1,c1_buf;
/* Music note coding ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
/* FA0 SOL0 LA0 SI0 DO RE MI FA SOL LA SI DO2 MUTE RE2 SOL2 FA# */
/* TIM2 CCR1 High byte. */
const unsigned char Low_Note_h[] /* Lower octave */
={0x2C,0x27,0x23,0x1F,0x1D,0x1A,0x17,0x16,0x13,0x11,0x0F,0x0E,0x00, 0x0D, 0x09, 0x15 };
const unsigned char Hi_Note_h[] /* Higher octave */
={0x16,0x13,0x11,0x0F,0x0E,0x0D,0x0B,0x0B,0x09,0x08,0x07,0x07,0x00, 0x06, 0x04, 0x0A };
/* TIM2 CCR1 Low byte. */
const unsigned char Low_Note_l[] /* Lower octave */
={0xA4,0xDC,0x82,0xA1,0xEE,0xA9,0xAC,0x62,0xEE,0xC1,0xD0,0xF0,0x00, 0x4F, 0xF7, 0x2C };
const unsigned char Hi_Note_l[] /* Higher octave */
={0x52,0xEE,0xC1,0xD0,0xF7,0x54,0xD6,0x31,0xF7,0xE0,0xE8,0x78,0x00, 0xA7, 0xFB, 0x96 };
/* The actual tune sequence: an array of notes. */
const unsigned char tune[] =
{
_M+sq, _M+sq, /* Two "buffer" mutes needed to manage smoothly the */
/* current_note/current_note_init comparison. */
/*------------------ DO RE MI FA SOL LA SI DO2 --------------------------*/
/*------------------ DO2 SI LA SOL FA MI RE DO --------------------------*/
_DO+c,_RE+c,_MI+c,_FA+c,_SOL+c,_LA+c,_SI+c,_DO2+c,_M+m, _PAUSE_,
_DO2+c,_SI+c,_LA+c,_SOL+c,_FA+c,_MI+c,_RE+c,_DO+c,_M+m, _PAUSE_,
/*---------------------------- 新年好 ------------------------------------*/
_DO+c,_DO+c,_DO+c,_M+sq,_DO+m,_SOL0+m,_MI+c,_MI+c,_M+sq,_MI+m,_DO+m,_DO+c,
_MI+c,_M+sq,_SOL+m,_SOL+m,_FA+c,_MI+c,_M+sq,_RE+m,_RE+m,_M+sq,_RE+c,_MI+c,
_FA+m,_M+sq,_FA+m,_MI+c,_RE+c,_MI+m,_DO+m,_M+sq,_DO+c,_MI+c,_RE+m,_SOL0+m,
_SI0+c,_RE+c,_DO+m,_DO+m,_PAUSE_,
/*--------------------------- 兩只老虎 -----------------------------------*/
_DO+c,_RE+c,_MI+c,_DO+c,_DO+c,_RE+c,_MI+c,_DO+c,_MI+c,_FA+c,_SOL+m,_MI+c,
_FA+c,_SOL+m,_SOL+qp,_LA+sq,_SOL+qp,_FA+sq,_MI+c,_DO+c,_SOL+qp,_LA+sq,
_SOL+qp,_FA+sq,_MI+c,_DO+c,_M+sq,_DO+c,_SOL0+c,_DO+m,_M+sq,_DO+c,_SOL0+c,
_DO+m,_M+sq,_PAUSE_,
/*---------------------------- 甜蜜蜜 ------------------------------------*/
_MI+m,_SOL+c,_LA+c,_MI+m,_MI+c,_DO+c,_RE+cn,_DO+q,_RE+c,_MI+q,_SOL+q,_MI+m,
_MI+m,_RE+c,_RE+c,_RE+c,_RE+q,_MI+q,_RE+q,_DO+cn,_LA0+q,_SOL0+cn,_DO+m,
_DO+c,_RE+c,_MI+cn,_RE+q,_MI+q,_RE+q,_MI+q,_SOL+q,_RE+m,_RE+m,_RE+m,_RE+m,
_MI+m,_SOL+c,_LA+c,_MI+m,_MI+c,_DO+c,_RE+cn,_DO+q,_RE+c,_MI+q,_SOL+q,_MI+m,
_MI+m,_RE+c,_RE+c,_RE+c,_RE+q,_MI+q,_RE+q,_DO+cn,_LA0+q,_SOL0+cn,_DO+m,
_DO+c,_MI+c,_RE+q,_DO+q,_DO+c,_LA0+q,_SOL0+cn,_DO+m,_DO+m,_DO+m,_DO+m,_MI+m,
_MI+m,_SOL0+m,_LA0+q,_DO+q,_SOL0+q,_LA0+q,_DO+m,_DO+m,_DO+m,_DO+m,_LA0+c,
_SI0+c,_LA0+c,_SI0+c,_LA0+c,_LA0+q,_DO+q,_LA0+q,_SOL0+q,_SOL0+c,_MI+m,_MI+m,
_MI+m,_MI+m,_LA0+c,_SI0+c,_LA0+c,_SI0+c,_LA0+c,_LA0+q,_DO+q,_LA0+q,_SOL0+q,
_SOL0+c,_MI+m,_MI+m,_MI+m,_M+c,_SOL+q,_LA+q,_SOL+m,_M+c,_SOL+q,_LA+q,_SOL+m,
_M+c,_SOL+q,_LA+q,_SOL+c,_SOL+q,_LA+q,_SOL+c,_SOL+q,_LA+q,_SOL+m,_SOL+m,
_MI+m,_SOL+c,_LA+c,_MI+m,_MI+c,_DO+c,_RE+cn,_DO+q,_RE+c,_RE+q,_SOL+q,_MI+m,
_MI+m,_RE+c,_RE+c,_RE+c,_RE+q,_MI+q,_RE+q,_DO+cn,_LA0+q,
_SOL0+cn,_DO+m,_DO+c,_MI+c,_RE+q,_DO+q,_DO+c,_LA0+q,_SOL0+cn,_DO+m,_DO+m,
_DO+m,_DO+m,_MI+m,_MI+m,_SOL0+m,_LA0+q,_DO+q,_SOL0+q,_LA0+q,_DO+m,_DO+m,
_DO+m,_DO+m,_PAUSE_,
/*------------------ _END_ marks to end of the tune ----------------------*/
_END_
};
/******************************************************************************/
/* Function definitions */
/******************************************************************************/
/* -------------------------------------------------------------------------- */
/* ROUTINE NAME: Buzz_Init */
/* INPUT/OUTPUT: None. */
/* DESCRIPTION: Initialize the TIM2 as PWM mode for BUZZ control. */
/* -------------------------------------------------------------------------- */
void Buzz_Init ( void )
{
PD_DDR |= 0x10; /* Configure PD4 as output (for the PWM). */
PD_CR1 |= 0x10; /* PD4 Push pull output. */
TIM2_CCMR1 |= 0x70; /* Output mode PWM2. */
TIM2_CCER1 |= 0x03; /* CC polarity low,enable PWM output */
TIM2_ARR = 0; /* Freq control register: ARR */
TIM2_CCR1 = 0; /* Dutycycle control register: CCR */
TIM2_PSCR |= 0x00; /* fCK_CNT is equal to fCK_PSC. */
TIM2_CR1 |= 0x01; /* Enable TIM2. */
current_note = 1;
}
/* -------------------------------------------------------------------------- */
/* ROUTINE NAME: Buzz_Wait */
/* INPUT/OUTPUT: Note ration (4bit MSB information) / None. */
/* DESCRIPTION: 1) Sample AIN voltage and store in AD_Value. */
/* 2) Polling wait routine for note ration(based on 4ms delay).*/
/* ration: Quaver (2), crotchet (4) or minim (8) selection. */
/* ---------------------------------------------------------------------------*/
void Buzz_Wait(unsigned char ration)
{
int i = 0;
unsigned char uc = 0;
unsigned long Temp;
/* Sample AIN voltage in ADC single mode. */
ADC_CR1 |= 0x01; /* First set ADON to power on the ADC mole. */
i = 6; /* Wait >7us to ensure the ADC power on finished.*/
while(i--);
ADC_CR1 |= 0x01; /* Set ADON again to start AD convert. */
while(!(ADC_CSR & 0x80));/* Waiting for AD convert finished (EOP=1). */
/* Store ADC value to AD_Value */
AD_Value = ((((unsigned int)ADC_DRH)<<2)+ADC_DRL)>>2;
if (AD_Value < 0x01)
{ AD_Value = 0x01; }
if (AD_Value > 0xC0)
{ AD_Value = 0xC0; }
if (Flag_Octave_Chg==1)
{
Temp = ((((unsigned int) Low_Note_h [c1_buf])<<8)+Low_Note_l [c1_buf]);
}
else
{
Temp = ((((unsigned int) Hi_Note_h [c1_buf])<<8)+Hi_Note_l [c1_buf]);
}
Temp = (Temp*AD_Value)>>9;
/* The new ty cycle value is written in CCR */
TIM2_CCR1H=(unsigned char)(((unsigned int)Temp & 0xff00)>>8);
TIM2_CCR1L=(unsigned char)((unsigned int)Temp & 0x00ff);
/* Delay time = ration * Y */
while ( uc < ration ) /* The following loop is run "ration" times. */
{
while ( i < 1200 ) /* This loop "Y" waits approximately 4.3ms. */
{
i++;
}
i = 0;
uc++;
}
}
/* -------------------------------------------------------------------------- */
/* ROUTINE NAME: Buzz_PlayTune */
/* INPUT/OUTPUT: None. */
/* DESCRIPTION: Plays a music score (one tune at a time). */
/* -------------------------------------------------------------------------- */
void Buzz_PlayTune ( void )
{
unsigned ui;
unsigned long temp_DCR;
unsigned char temp;
while(1)
{
if(tune[current_note] == _END_)
{
/* End of the music, reset to beginning. 1 is a mute at the */
/* beginning of the array of notes; differs from 0. */
current_note = 1;
break;
}
else if(tune[current_note] == _PAUSE_)
{
/* End of a tune, save the position in the music, stop playing. */
current_note++;
break;
}
else
{
c1 = tune[current_note];
/* Loads a note (or mute) on the relevant registers */
/* The note information is carried only by the 4 lowest bits. */
c1_buf= c1 & 0x0f;
if (Flag_Octave_Chg==1)
{
temp_DCR = ((((unsigned int)Low_Note_h [c1_buf])<<8)+Low_Note_l[c1_buf]);
TIM2_ARRH = Low_Note_h [c1_buf];
TIM2_ARRL = Low_Note_l [c1_buf];
}
else
{
temp_DCR = ((((unsigned int) Hi_Note_h [c1_buf])<<8)+Hi_Note_l [c1_buf]);
TIM2_ARRH = Hi_Note_h [c1_buf];
TIM2_ARRL = Hi_Note_l [c1_buf];
}
temp_DCR = (temp_DCR*AD_Value)>>9;
/* The new ty cycle value is written in DCR0. */
temp=((unsigned int)temp_DCR & 0xff00)>>8;
TIM2_CCR1H=(unsigned char)temp;
temp=((unsigned int)temp_DCR & 0x00ff);
TIM2_CCR1L=(unsigned char)temp;
/* Waits for the ration of the note. */
/* The ration info is carried by the 4 highest bits. */
Buzz_Wait(c1&0xF0);
/* Progressing in the array of notes: the tune. */
current_note++;
}
}
}
/* -------------------------------------------------------------------------- */
/* ROUTINE NAME: GPIO_Init */
/* INPUT/OUTPUT: None. */
/* DESCRIPTION: Initialize the GPIO for LED,TLI. */
/* -------------------------------------------------------------------------- */
void GPIO_Init(void)
{
/* LED IO Configuration */
/* LD3: PD3 */
/* LD2: PD1 */
/* LD1: PD0 */
PD_DDR |= 0x0D; /* Output. */
PD_CR1 |= 0x0D; /* PushPull. */
PD_CR2 = 0x00; /* Output speed up to 2MHz. */
/* PD7 external interrupt */
EXTI_CR1 = 0x00; /* External interrupt (TLI) sensitivity. */
EXTI_CR2 = 0x00;
PD_DDR &=~0x80; /* PD7: Input */
PD_CR2 |= 0x80; /* Enable TLI interrupt. */
}
/* -------------------------------------------------------------------------- */
/* ROUTINE NAME: CLK_Init */
/* INPUT/OUTPUT: None. */
/* DESCRIPTION: Initialize the clock source */
/* -------------------------------------------------------------------------- */
void CLK_Init(void)
{
/* Configure HSI prescaler*/
CLK_CKDIVR &= ~0x10; /* 01: fHSI= fHSI RC output/2. */
/* Configure CPU clock prescaler */
CLK_CKDIVR |= 0x01; /* 001: fCPU=fMASTER/2. */
}
/* -------------------------------------------------------------------------- */
/* ROUTINE NAME: ADC_Init */
/* INPUT/OUTPUT: None. */
/* DESCRIPTION: Initialize the AD converter. */
/* -------------------------------------------------------------------------- */
void ADC_Init(void)
{
ADC_CR2 = 0x00;
ADC_CR1 = 0x00;
ADC_CSR = 0x03;
ADC_TDRL = 0x20;
}
/* -------------------------------------------------------------------------- */
/* ROUTINE NAME: TIM_Init */
/* INPUT/OUTPUT: None. */
/* DESCRIPTION: Initialize the TIM4 as LED timebase. */
/* -------------------------------------------------------------------------- */
void TIM_Init(void)
{
/* TIM4 Peripheral Configuration */
/* Time Base configuration */
TIM4_PSCR = 0x04; /* Configure TIM4 prescaler. */
TIM4_ARR = 0xFF; /* Configure TIM4 period. */
/*TIM4 counter enable */
TIM4_CR1 |= 0x01; /* Enable TIM4. */
TIM4_IER |= 0x01; /* Enable TIM4 OVR interrupt. */
}
/* -------------------------------------------------------------------------- */
/* ROUTINE: main */
/* main entry */
/* -------------------------------------------------------------------------- */
void main ( void )
{
unsigned int j;
_asm("sim"); /* Disable interrupts. */
Flag_Octave_Chg=0;
CLK_Init();
GPIO_Init();
TIM_Init();
ADC_Init();
_asm("rim"); /* Enable interrupts. */
Buzz_Init (); /* Init TIMER peripheral. */
while ( 1 )
{
/* Play the current score. */
Buzz_PlayTune();
Buzz_Wait(0x80); /* Wait around one second. */
}
}
/* --------------------------- End of file -----------------------------------*/
4. STM8的C語言延時及外部中斷編程
研究了下，你描述的邏輯好像有矛盾，
我疑問如下：
控制過程如下：
pin17（PC7）收到低電平脈沖信號（脈沖長度多少？），
計時器啟動（計數時間5秒？），
pin19（PD2）輸出高電平（在計數計數結束後輸出低電平？）；
當m為奇數時，pin13（PC3）輸出高電平（PIN14輸出低電平？）；
當m為偶數時，pin14（PC4）輸出高電平（PIN13輸出低電平？）。
最終計數結束後輸出狀態如何？
pin10（PA3）有高電平脈沖信號輸入時（脈沖長度多少？），
pin19（PD2）停止輸出（輸出低電平還是高電平？）；
如果在一個計時周期內（5秒嗎？），
pin10（PA3）沒有高電平信號輸入（一直維持低電平嗎？），
則pin18（PD1）輸出高電平（有高電平脈沖信號時輸出低電平？）。
pin15（PC5）有高電平脈沖信號輸入時（脈沖長度多少？），
pin13（PC3）停止輸出（輸出低電平還是高電平？）；
如果在一個計時周期內（5秒嗎？），
pin15（PC5）沒有高電平信號輸入（一直維持低電平嗎？），
且計數器值m為奇數，則pin18（PD1）輸出高電平（m是偶數時怎麼處理？）。
。。。。。。。。。。。
主要程序到底是觸發後輸出一個序列電平還是測量輸入脈沖？
5. IAR環境 STM8S空指令C語言怎麼寫
#define nop() {_asm("nop\n");} /* No Operation */
6. 用STM8S105單片機寫一個輸出頻率為2KHz的方波，C語言 沒用過stm8單片機，求入門資料。謝謝！
//此常式是通過TIM2 CH1（PD4腳）通道來輸出一個頻率2K 占空比可調的方波，占空比可通過PD7腳的按鍵調
#include "STM8S105K.h"
typedef unsigned char u8;
typedef unsigned int u16;
u16 value;
void SystemInit(void)
{
CLK_CKDIVR = 0x08; // 16M內部RC經2分頻後系統時鍾為8M
CLK_PCKENR1 |= 0x60; //使能TIM2與TIM3與主頻連接
PD_CR2 |= 0x80; //使能PD7口外部中斷
}
void GPIO_init(void)
{
PD_DDR = 0x1F; //配置PD埠的方向寄存器全輸出
PD_CR1 = 0x1F; //設置PD為推挽輸出
}
void TIM2_init(void) //TIM2 CH1 工作於模式1
{
TIM2_CCMR1= 0x60; // PWM 模式 1,TIM2 CH1
TIM2_CCER1= 0x03; // CC1配置為輸出
TIM2_ARRH = 0x07; // 配置PWM解析度為10位，ARR=0x07D0
TIM2_ARRL = 0xD0; // PWM頻率=8M/0x07D0=2000Hz
TIM2_CR1 |= 0x01; // 計數器使能，開始計數
}
void init_devices(void)
{
asm("sim");
SystemInit();
GPIO_init();
TIM2_init();
_asm("rim"); //開總中斷
}
void main( void )
{
init_devices();
while(1)
TIM2_CCR1=value;//改變value值可改變頻率
}
/****************************************************************************
*** 函數名 : @near @interrupt void TLI_IRQHandler (void)
*** 功能描述: 中斷服務程序
按下PD7口按鍵來改變占空比
*****************************************************************************/
@near @interrupt void TLI_IRQHandler (void)
{
PD_CR2 &= 0x7F; //關PD7外部中斷
value+=50;
while(value>1000)
value=0;
PD_CR2 |= 0x80; //使能PD7口外部中斷
return;
}
7. stm8的空指令延時c語言怎樣寫
單片機的C語言關於延時函數主要有兩種一種是用for循環，通過單片機執行空指令達到延時的目的如：for(i=0;i<100;i++){;}這個簡單的語句會執行100次空指令每一次指令的時間可以大概確定因此這個是最簡單的延時函數第二種是通過定時器的方式來實現定時器是通過對單片機的晶振進行計數然後在定時器中斷服務函數裡面實現定時時間的計算及設置51單片機的定時器0中斷服務函數為voidtime0()interrupt1{}
8. STM8S系列程序示例
/*********************************************
* STM8S105* TIM2 TIM3輸出PWM PD0 PD3 TIM3輸出PWM，*********************************************/#include "STM8S105K.h"
#include "STM8S105_CLOCK.h"
typedef unsigned char u8;
typedef unsigned int u16;u16 value;
/*******************************************************************************
*** 函數名 : void SystemInit(void)
*** 功能描述: 系統初始化
*** 函數說明: 系統全局初始化
******************************************************************************/
void SystemInit(void)
{ SystemClock_Init();
CLK_PCKENR1 |= 0x60; //使能TIM2與TIM3與主頻連接
PD_CR2 |= 0x80; //使能PD7口外部中斷
}
/*******************************************************************************
*** 函數名 : void main(void)
*** 功能描述: 主函數
*** 函數說明:
******************************************************************************/
void GPIO_init(void)
{
PD_DDR = 0x1F; //配置PD埠的方向寄存器全輸出
PD_CR1 = 0x1F; //設置PD為推挽輸出
PB_DDR|= 0x04; //PB2輸出
PB_CR1|= 0x04; //PB2推挽輸出
PB_ODR|= 0x04; //開5V電源
}
void TIM2_init(void) //TIM2 CH1 工作於模式1
{
// TIM2_CCMR2= 0x60; // PWM 模式 1
TIM2_CCMR1= 0x60; // PWM 模式 1,TIM2 CH1
TIM2_CCER1= 0x03; // CC1配置為輸出
//TIM2_CCER2= 0x03; // CC3使能
TIM2_ARRH = 0x03; // 配置PWM解析度為10位，ARR=0x3FF
TIM2_ARRL = 0xFF; // PWM頻率=8M/0x03FF=7820Hz
TIM2_CR1 |= 0x01; // 計數器使能，開始計數
}
void TIM3_init(void) //TIM3 CH1 ch2工作於模式2,1
{
TIM3_CCMR1= 0x70; //PWM模式2
TIM3_CCMR2= 0x60; // PWM 模式 1
TIM3_CCER1= 0x33; // CC1 CC2配置為輸出,CH1 CH2
TIM3_ARRH = 0x03; // 配置PWM解析度為10位，ARR=0x3FF
TIM3_ARRL = 0xFF; // PWM頻率=8M/0x03FF=7820Hz
TIM3_CR1 = 0x01; // 計數器使能，開始計數
} void Run(void)
{ //TIM2_CCR2H = (unsigned char)(value>>8); // 更新CC2比較寄存器
//TIM2_CCR2L = (unsigned char)(value);
TIM2_CCR1=value;
//TIM2_CCR3=value;
TIM3_CCR2=value;
TIM3_CCR1=value; //注意每個通道都要設CCR
} void init_devices(void)
{
_asm("sim");
SystemInit();
GPIO_init();
TIM2_init();
TIM3_init();
_asm("rim");
} void main( void )
{
init_devices();
while(1)
Run();
} /****************************************************************************
*** 函數名 : @near @interrupt void TLI_IRQHandler (void)
*** 功能描述: 中斷服務程序
*** 函數說明:
*****************************************************************************/
@near @interrupt void TLI_IRQHandler (void) {
PD_CR2 &= 0x7F; //關PD7外部中斷
value+=50;
while(value>1000)
value=0; PD_CR2 |= 0x80; //使能PD7口外部中斷
return;
}
9. STM8S的c語言指令中，循環左移的命令是什麼
用匯編指令 RLC（左移位）
asm("RLC NumSwitch");