本帖最后由 天灵灵地灵灵 于 2024-10-24 20:20 编辑
创建MCC工程，设置如下：
最后设置成250KHz的频率
IO配置如下
然后代码里对PWM从小到大，再从大到小
- int main(void)
- {
- uint16_t pwm_t=0;
- uint8_t flag=0;
- SYSTEM_Initialize();
- // If using interrupts in PIC18 High/Low Priority Mode you need to enable the Global High and Low Interrupts
- // If using interrupts in PIC Mid-Range Compatibility Mode you need to enable the Global and Peripheral Interrupts
- // Use the following macros to:
- // Enable the Global Interrupts
- //INTERRUPT_GlobalInterruptEnable();
- // Disable the Global Interrupts
- //INTERRUPT_GlobalInterruptDisable();
- // Enable the Peripheral Interrupts
- //INTERRUPT_PeripheralInterruptEnable();
- // Disable the Peripheral Interrupts
- //INTERRUPT_PeripheralInterruptDisable();
- while(1)
- {
- if(flag==0)
- {
- PWM1_LoadDutyValue(pwm_t++);
- DELAY_milliseconds(100);
- if(pwm_t==126) flag=1;
- }
- else
- {
- PWM1_LoadDutyValue(pwm_t--);
- DELAY_milliseconds(100);
- if(pwm_t==1) flag=0;
- }
- }
- }
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