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ATSAME54P20A PWM
#1
新會員
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最近使用ATSAME54P20A撰寫單純輸出PWM訊號

設定晶片為內振Main Clock 12MHZ

設定TCC4_WO0(Pin43)為輸出腳位

已經在HarmonyV3中的設定PWM Prequency 1000Hz

主程式的寫法為

int main ( void )
{
/* Initialize all modules */
SYS_Initialize ( NULL );

TCC4_PWMStart();


while ( true )
{
/* Maintain state machines of all polled MPLAB Harmony modules. */
SYS_Tasks ( );
}

/* Execution should not come here during normal operation */

return ( EXIT_FAILURE );
}

不知道這樣的寫法是否正確,之前我們使用dsPIC30F4011時是直接在C30上寫跟PWM有關的設定,但在HarmonyV3上似乎不太需要再main.c中寫這樣的流程,還是有需要?

以上的程式碼有編譯成功,但是燒錄進晶片後,輸出的結果不是方波,而是正弦波

想請問是Harmony的設定上出現問題,還是main.c還需要定義其他函數

MPLAB V5.3
XC32 v2.30
Harmony V3

發表於: 2021/1/8 0:32
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