请问以下这个语句是什么意思(void (*)(long))F28X_EV1_PWM_Init

Question

void F28X_EV1_PWM_Init(PWMGEN *p)
{
EvaRegs.T1PR = p->n_period; /* Init Timer 1 period Register */
EvaRegs.T1CON.all = PWM_INIT_STATE; /* 0x8840,Symmetrical Operation */
//EvaRegs.DBTCONA.all = DBTCON_INIT_STATE; /*暂时没用上*/
//EvaRegs.DBTCONA.all =0x0ff0; /*hj,2us*/
EvaRegs.DBTCONA.all =0x05f0;
//EvaRegs.DBTCONA.all =0x00f0;
//EvaRegs.ACTRA.all = ACTR_INIT_STATE;
//EvaRegs.ACTRA.all=0x0666;
EvaRegs.COMCONA.all = 0xa200;

EvaRegs.CMPR1 = p->n_period;
EvaRegs.CMPR2 = p->n_period;
EvaRegs.CMPR3 = p->n_period;
EALLOW; /* Enable EALLOW */
GpioMuxRegs.GPAMUX.all |= 0x003F;
EDIS; /* Disable EALLOW */

}

Answer 1

(void (*)(long))F28X_EV1_PWM_Init——把F28X_EV1_PWM_Init强制为一个指向函数的指针，被指向的这个函数具有一个long型形参、没有返回值。

Answer 2

函数指针，方便在另外一个函数调用该函数。在另外一个函数参数列表中调用就好了