mc9s12dg128单片机多少位单片机

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解决时间 2021-02-15 16:47

提问者网友：杀手的诗
2021-02-15 10:53

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五星知识达人网友：神也偏爱
2021-02-15 12:32

是飞思卡尔（现在已被NXP兼并）的16位单片机。

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1楼网友：你哪知我潦倒为你
2021-02-15 12:39

串口程序在mc9s12dg128开发板上调试成功，芯片换成mc9s12d64为什么不行？下面是单片机的例程，现在加载到自己画的mc9s12d64，通信不成功，加载程序，可以运行。谢谢，求解答 #include #include "derivative.h" #pragma link_info derivative "mc9s12d64" #define bus_clock 32000000 #define osc_clock 16000000 #define baud 9600 unsigned char data_receive; void init_pll(void) {crgint = 0;clksel_pllsel = 0; #if(bus_clock == 40000000) synr = 4; #elif(bus_clock == 32000000)synr = 3; #elif(bus_clock == 24000000)synr = 2;#endif refdv = 1;pllctl_pllon = 1;pllctl_auto = 1; while (crgflg_lock == 0);clksel_pllsel = 1; } void init_sci(void) {sci0bd = bus_clock/16/baud; sci0cr1 = 0x00;sci0cr2 = 0x0c;} void sci_send(unsigned char data) {while(!sci0sr1_tdre);sci0drl = data;} unsigned char sci_receive(void) {while(!sci0sr1_rdrf);return(sci0drl);} void main(void) {disableinterrupts; init_pll();init_sci();enableinterrupts;for(;;) {data_receive = sci_receive();if(data_receive == 'o') {sci_send('y');}if(data_receive == 'c'){sci_send('v');}}}

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