stm8s003用tim1_ch2输出pwm 一直无法输出
- /* 添加库函数头文件 */
- #include "stm8s.h"
- //数码管0 ~ F的代码数组
- //u8 const Data[16] = {0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0x88,0x83,0xc6,0xa1,0x86,0x8e};
- void Init_pwm()
- {
- GPIO_Init(GPIOC, GPIO_PIN_2, GPIO_MODE_OUT_PP_LOW_FAST); //输出推拉，低电平，10MHz
- TIM1_DeInit();
- TIM1_TimeBaseInit(0, TIM1_COUNTERMODE_UP, 800, 0x00);//250
- TIM1_OC2Init(TIM1_OCMODE_PWM1, TIM1_OUTPUTSTATE_ENABLE, TIM1_OUTPUTNSTATE_ENABLE, 400,
- TIM1_OCPOLARITY_LOW, TIM1_OCNPOLARITY_HIGH, TIM1_OCIDLESTATE_SET,
- TIM1_OCNIDLESTATE_RESET);//50%占空比
- TIM1_CCxCmd(TIM1_CHANNEL_2, ENABLE);
- TIM1_OC2PreloadConfig(ENABLE);
- TIM1_CtrlPWMOutputs(ENABLE); //TIM1输出使能
- TIM1_Cmd(ENABLE);//TIM1使能
- //TIM1->CCER1 |= 0x10; //开启OC2信号输出脚
- // TIM1->CCMR2 = 0x60; //PWM1模式
- // TIM1->CCR2H = 0x00; //占空比高位
- //TIM1->CCR2L = 0x37; //占空比低位
- // TIM1->CCMR2 |= 0x08; //输出比较2预装载使能
- }
- void assert_failed(u8* file, u32 line)
- {
- while (1)
- {
- }
- }
- void main(void)
- {
- //CLK_DeInit();//初始化clk相关寄存器为初始值
- CLK_HSIPrescalerConfig(CLK_PRESCALER_HSIDIV1); //内部时钟16M
- Init_pwm();
- enableInterrupts();
- while(1);
- }
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