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| 请问这样配置为什么出不来波形呢? 是哪里配置有问题么?
 void PWM_Init(void)//(U8 ucPin, U8 ucDivFactor, U8 ucPWMMode)
 {
 PORTB_PCR0 = PORT_PCR_MUX(3) | PORT_PCR_DSE_MASK;
 SIM_SCGC6 |=SIM_SCGC6_TPM1_MASK;
 TPM1_C0SC |= TPM_CnSC_MSB_MASK | TPM_CnSC_ELSA_MASK;
 TPM1_MOD |=TPM_SC_CMOD_MASK|PWM_FRE_FACTOR;
 TPM1_C0V  = 100;
 }
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