Hello World教程

下面介绍在NXP LPC54110开发板写Hello World运行的方法，首先下载MCUXpresso IDE开发工具，需要注册账号并同意条款http://www.nxp.com/products/developer-resources/run-time-software/mcuxpresso-software-and-tools/mcuxpresso-integrated-development-environment-ide-v10.0.2:MCUXpresso-IDE?&tid=vanMCUXPRESSO/IDE

https://nxp.flexnetoperations.com/control/frse/download?agree=Accept&element=9270427
下载后安装，注意选择如下型号设备

然后加入输出Hello World的UART代码

1. ******************************************************************************/
   
2. /*！
   
3. * @brief Main function
   
4. */
   
5. int main(void)
   
6. {
   
7.     char ch;
   
8. 
   
9.     /* Init board hardware. */
   
10.     /* attach 12 MHz clock to FLEXCOMM0 (debug console) */
    
11.     CLOCK_AttachClk(BOARD_DEBUG_UART_CLK_ATTACH);
    
12. 
    
13.     BOARD_InitPins();
    
14.     BOARD_BootClockFROHF48M();
    
15.     BOARD_InitDebugConsole();
    
16. 
    
17.     PRINTF("hello world.\r\n");
    
18. 
    
19.     while (1)
    
20.     {
    
21.         ch = GETCHAR();
    
22.         PUTCHAR(ch);
    
23.     }
    
24. }

复制代码

设置好后编译下载到开发板

开发板上电后串口输出如下图