
最近在研究STM32开发板,遇到个很奇怪的问题问题,查了很多资料都找不到原因,我想做一个利用按键来控制一下pwm波的开关,按键用的是外部中断EXTI0,GPIOA_0,PWM用的是TIM1_CH1,单独在KEIL环境下都可以运行,可是组合起来时在keil中就编译不了了。(以下是代码)+ ^. `# Y+ g4 p3 Y; N u 解决途径:编译软件没安装在C盘,且安装文件不包含汉字。' V$ e; Z+ q6 C6 d 0 G: j4 H2 u. O- w, C int main(void)' T7 G' f; P. d8 Q( C# q Y { " R" o8 N$ C# H0 W /* config the sysclock to 72m */ SystemInit();# f9 K$ ~- }1 R& n3 e f" `* C5 F RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1 | RCC_APB2Periph_GPIOA, ENABLE); GPIO_InitTypeDef GPIO_InitStructure;, `: q* D2 W2 H# F GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 ; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;: h& O9 }! ?9 O9 V GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_Init(GPIOA, &GPIO_InitStructure);# I/ g* W1 t! p; E c TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;8 L, |8 ]" g5 x& r$ N3 Q: H TIM_OCInitTypeDef TIM_OCInitStructure; uint16_t CCR1_Val = 2047; TIM_TimeBaseStructure.TIM_Prescaler = 0;+ K/ E, i0 K# X, t: H" F TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; TIM_TimeBaseStructure.TIM_Period = 4095; TIM_TimeBaseStructure.TIM_ClockDivision = 0; TIM_TimeBaseStructure.TIM_RepetitionCounter = 0; 4 ]: y7 s7 C. z) t, o& z4 q TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure); . W7 V' D6 ]7 \+ Q4 A: W. ? TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2;# e& ?2 _& z0 K; t TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;$ ^2 w0 } z2 T; {. A6 C8 y TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable;) ~/ V, \, \2 Y: ]+ [6 l8 W5 }9 P TIM_OCInitStructure.TIM_Pulse = CCR1_Val;# A, K- P$ P8 k7 ^2 R* i TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low;, V, D G8 H* _ TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_High; TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Set;; s8 y6 l/ Q1 v4 e e' ] TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCIdleState_Reset; TIM_OC1Init(TIM1, &TIM_OCInitStructure);5 t4 N) w& w# L; ~ . }2 `# T8 _& M6 g" u1 `* T7 F TIM_Cmd(TIM1, ENABLE);. ^- t3 e4 t1 i5 W8 l TIM_CtrlPWMOutputs(TIM1, ENABLE); EXTI_PA0_Config(); % j+ i ~- M( |) Z while(1) { P" M0 c% d9 O5 T) s1 x) [8 m' ? }; n1 i8 w/ W! R' _" V/ F! b }9 P. H$ q$ r+ y H //下面的是个子函数1 `4 b f0 v3 K9 { void NVIC_Configuration(void)0 V, m! Y% ^8 m; V {; r+ N- b: g+ f& a+ B, R7 i4 ^8 X3 ` NVIC_InitTypeDef NVIC_InitStructure; ( B. A- | v, T) @' Q' x* f3 M /* Configure one bit for preemption priority */ NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); : t7 W; _& B- {2 n /* 配置P[A|B|C|D|E]0为中断源 */* k: M: |+ a5 W4 G0 k NVIC_InitStructure.NVIC_IRQChannel = EXTI0_IRQn ;% l$ H$ @0 |# |. L( n+ { NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;! L0 A1 F% t0 R& C- n NVIC_Init(&NVIC_InitStructure);1 N: L4 G! S" s: m5 P+ t } /* * 函数名:EXTI_PB0_Config) C* m6 Z6 E; y4 M6 O- V, }0 i * 描述 :配置 PB0 为线中断口,并设置中断优先级, K" v3 A7 j' K% J* o: O g * 输入 :无' W6 s4 M: ~$ D5 v" f4 p( x * 输出 :无5 |$ i6 }) p) G * 调用 :外部调用/ ~5 ^" y4 P8 u */ void EXTI_PA0_Config(void)' ~2 b' C8 i3 [0 n+ e I/ l i' A0 [ {7 _% w3 D2 ]3 ^4 r5 d# ~ L GPIO_InitTypeDef GPIO_InitStructure; EXTI_InitTypeDef EXTI_InitStructure;+ L; N* y0 r* n- ]0 R # b7 N( O* `3 \: o2 v3 P /* config the extiline(PB0) clock and AFIO clock */& M/ s+ ~1 {9 W5 q& } RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_AFIO,ENABLE); ! p6 @9 b( l6 t6 W% `9 @6 |% j3 g0 ?; ^ /* config the NVIC(PB0) */ NVIC_Configuration();- }0 h( M7 R+ k5 y /* EXTI line gpio config(PB0) */ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 ; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPD; // 上拉输入 GPIO_Init(GPIOA, &GPIO_InitStructure);( _$ w$ X3 a3 c* K- { /* EXTI line(PB0) mode config */ GPIO_EXTILineConfig(GPIO_PortSourceGPIOA, GPIO_PinSource0); & |) e! C6 m5 ~! `2 W" D+ p6 g EXTI_InitStructure.EXTI_Line = EXTI_Line0; t! I! Z9 j* \* F; c& g EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;- ^! V2 J+ |6 L, Y( y+ f EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling; //下降沿中断* m/ n9 {+ [$ r \* L2 w9 l8 d EXTI_InitStructure.EXTI_LineCmd = ENABLE; EXTI_Init(&EXTI_InitStructure); . a' L* b" z9 U- \3 E+ _ }. B& Q7 d4 w4 S. S. _3 O + j4 t! ?8 y1 U # P' n0 X+ }$ `4 F+ f- `6 H6 h void EXTI0_IRQHandler(void) {! N! i; X) V2 v& j$ @- w) h/ m) D if(EXTI_GetITStatus(EXTI_Line0) != RESET) //确保是否产生了EXTI Line中断( x7 y' L+ M, ^+ w5 T2 B { GPIO_InitTypeDef GPIO_InitStructure; GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 ;9 I; r9 U0 g! L5 ]3 P; l GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;6 `/ I! [% l- T3 Z8 t( X: L GPIO_Init(GPIOA, &GPIO_InitStructure); } " t# s x' Y; h1 S. w5 F$ F9 u } |