本帖最后由 电子极客迷 于 2020-11-8 14:59 编辑
首先感谢Microchip给我这次体验的机会，手上一直没有pic系列的开发板。之前也只是用过pic16系列的做项目。话不多说开始测试，先来一个点灯程序。 哈哈哈哈！
实物图如下：(我已经焊接好排针了)
开始用MPLAB X IDE创建工程
选择芯片型号（开发板选用PIC18F57Q43）
选择调试工具（开发板板载了调试器，IDE会识别到调试器，选择如下这个） 选择编译器（XC8,这里老版本不支持这个芯片，我特意安装了最新版的XC8）
设置工程目录，工程名称然后点击完成
新建工程完成后页面如下
新建一个main.c文件，新工程是没有文件的，我这里是打算直接采用寄存器开发，没有用官方的MCC代码配置工具，新建的文件只有main函数。
直接用X IDE里面的配置字工具进行配置配置字节的位，配置时钟直接在这里配置，我们开发板没有外置时钟。所以关闭外部振荡器，选择内置的64MHZ时钟做为系统时钟源。选择好后点击创建就会生成代码。
点击创建后可以到out输出选项下看到生成的配置字代码，将其复制到工程中。 完成以上步骤后，开始点灯。写点灯代码。首先打开原理图，查看我们LED灯使用的io口是RF3,那么需要先对RF3进行配置输出模式。
开始编译代码，点击这个锤子图标，可以看到编译成功，无错误。S我们下载进去，可以看到输出信息显示编程完成，然后看现象。
小灯成功点亮，然后我们测试让小灯闪烁。加入延时。
小灯开始闪烁。点灯测试完成，下面测试一下串口通讯。
源码：
// PIC18F57Q43 Configuration Bit Settings
// 'C' source line config statements
// CONFIG1
#pragma config FEXTOSC = OFF // External Oscillator Selection (Oscillator not enabled)
#pragma config RSTOSC = HFINTOSC_64MHZ// Reset Oscillator Selection (HFINTOSC with HFFRQ = 64 MHz and CDIV = 1:1)
// CONFIG2
#pragma config CLKOUTEN = OFF // Clock out Enable bit (CLKOUT function is disabled)
#pragma config PR1WAY = ON // PRLOCKED One-Way Set Enable bit (PRLOCKED bit can be cleared and set only once)
#pragma config CSWEN = ON // Clock Switch Enable bit (Writing to NOSC and NDIV is allowed)
#pragma config FCMEN = ON // Fail-Safe Clock Monitor Enable bit (Fail-Safe Clock Monitor enabled)
// CONFIG3
#pragma config MCLRE = EXTMCLR // MCLR Enable bit (If LVP = 0, MCLR pin is MCLR; If LVP = 1, RE3 pin function is MCLR )
#pragma config PWRTS = PWRT_OFF // Power-up timer selection bits (PWRT is disabled)
#pragma config MVECEN = ON // Multi-vector enable bit (Multi-vector enabled, Vector table used for interrupts)
#pragma config IVT1WAY = ON // IVTLOCK bit One-way set enable bit (IVTLOCKED bit can be cleared and set only once)
#pragma config LPBOREN = OFF // Low Power BOR Enable bit (Low-Power BOR disabled)
#pragma config BOREN = SBORDIS // Brown-out Reset Enable bits (Brown-out Reset enabled , SBOREN bit is ignored)
// CONFIG4
#pragma config BORV = VBOR_1P9 // Brown-out Reset Voltage Selection bits (Brown-out Reset Voltage (VBOR) set to 1.9V)
#pragma config ZCD = OFF // ZCD Disable bit (ZCD module is disabled. ZCD can be enabled by setting the ZCDSEN bit of ZCDCON)
#pragma config PPS1WAY = ON // PPSLOCK bit One-Way Set Enable bit (PPSLOCKED bit can be cleared and set only once; PPS registers remain locked after one clear/set cycle)
#pragma config STVREN = ON // Stack Full/Underflow Reset Enable bit (Stack full/underflow will cause Reset)
#pragma config LVP = ON // Low Voltage Programming Enable bit (Low voltage programming enabled. MCLR/VPP pin function is MCLR. MCLRE configuration bit is ignored)
#pragma config XINST = OFF // Extended Instruction Set Enable bit (Extended Instruction Set and Indexed Addressing Mode disabled)
// CONFIG5
#pragma config WDTCPS = WDTCPS_31// WDT Period selection bits (Divider ratio 1:65536; software control of WDTPS)
#pragma config WDTE = ON // WDT operating mode (WDT enabled regardless of sleep; SWDTEN is ignored)
// CONFIG6
#pragma config WDTCWS = WDTCWS_7// WDT Window Select bits (window always open (100%); software control; keyed access not required)
#pragma config WDTCCS = SC // WDT input clock selector (Software Control)
// CONFIG7
#pragma config BBSIZE = BBSIZE_512// Boot Block Size selection bits (Boot Block size is 512 words)
#pragma config BBEN = OFF // Boot Block enable bit (Boot block disabled)
#pragma config SAFEN = OFF // Storage Area Flash enable bit (SAF disabled)
#pragma config DEBUG = OFF // Background Debugger (Background Debugger disabled)
// CONFIG8
#pragma config WRTB = OFF // Boot Block Write Protection bit (Boot Block not Write protected)
#pragma config WRTC = OFF // Configuration Register Write Protection bit (Configuration registers not Write protected)
#pragma config WRTD = OFF // Data EEPROM Write Protection bit (Data EEPROM not Write protected)
#pragma config WRTSAF = OFF // SAF Write protection bit (SAF not Write Protected)
#pragma config WRTAPP = OFF // Application Block write protection bit (Application Block not write protected)
// CONFIG10
#pragma config CP = OFF // PFM and Data EEPROM Code Protection bit (PFM and Data EEPROM code protection disabled)
// #pragma config statements should precede project file includes.
// Use project enums instead of #define for ON and OFF.
#include <xc.h>
#include <stdio.h>
#include <stdlib.h>
/*
*
*/
int main(int argc, char** argv) {
ANSELFbits.ANSELF3 = 0x0; // 设置RF3为数字io
TRISFbits.TRISF3=0;//设置为输出RF3
PORTFbits.RF3=0; //输出低电平。
while(1)
{
for(long i=0;i<100000;i++)//延时
_delay(64);//延时64个指令周期
PORTFbits.RF3^=1;
}
return (EXIT_SUCCESS);
}
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