新唐 Nuvoton M031 入門 點亮板載LED

官網地址

http://www.nuvoton.com.cn/board/numaker-m031tc/

http://www.nuvoton.com.cn/products/microcontrollers/arm-cortex-m0-mcus/m031-series/m031tb0ae/

資源下載地址

http://www.nuvoton.com.cn/products/microcontrollers/arm-cortex-m0-mcus/m031-series/m031tb0ae/?group=Software&tab=2

開發必備BSP

http://www.nuvoton.com.cn/export/resource-files/M031_Series_BSP_CMSIS_V3.02.000.zip

解壓縮文件，複製一份demo代碼改個名字（複製GPIO_OutputInput，改名GPIO_LED）

M031_Series_BSP_CMSIS_V3.02.000\SampleCode\StdDriver\GPIO_OutputInput

M031_Series_BSP_CMSIS_V3.02.000\SampleCode\StdDriver\GPIO_LED

直接用Keil打開項目M031_Series_BSP_CMSIS_V3.02.000\SampleCode\StdDriver\GPIO_LED\KEIL\GPIO_OutputInput.uvproj

修改main.c代碼

#include "stdio.h"
#include "NuMicro.h"


static void SYS_Init(void)
{
    /* Unlock protected registers */
    SYS_UnlockReg();

    /* Enable HIRC */
    CLK_EnableXtalRC(CLK_PWRCTL_HIRCEN_Msk);

    /* Waiting for HIRC clock ready */
    CLK_WaitClockReady(CLK_STATUS_HIRCSTB_Msk);

    /* Switch HCLK clock source to HIRC */
    CLK_SetHCLK(CLK_CLKSEL0_HCLKSEL_HIRC, CLK_CLKDIV0_HCLK(1));

    /* Set both PCLK0 and PCLK1 as HCLK/2 */
    CLK->PCLKDIV = (CLK_PCLKDIV_APB0DIV_DIV2 | CLK_PCLKDIV_APB1DIV_DIV2);

    /* Update System Core Clock */
    /* User can use SystemCoreClockUpdate() to calculate PllClock, SystemCoreClock and CycylesPerUs automatically. */
    SystemCoreClockUpdate();

    /* Lock protected registers */
    SYS_LockReg();
}


static void delay_ms(uint16_t nDelay)
{
    uint16_t nIndex;
    for(nIndex = 0; nIndex < nDelay; nIndex++)
    {
        CLK_SysTickDelay(1000);//delay one ms
    }
}

int32_t main(void)
{

    /* Init System, IP clock and multi-function I/O. */
    SYS_Init();
    
    GPIO_SetMode(PB,BIT14,GPIO_MODE_OUTPUT);
    while(1){
      PB14 = 1;
      delay_ms(1000);
      PB14 = 0;
      delay_ms(1000);
    }
}

板子上的LED燈是PB14

設置PB14爲輸出 GPIO_SetMode(PB,BIT14,GPIO_MODE_OUTPUT);

循環1秒鐘亮滅LED燈

 

寫在最後，產品是M0的32位處理器，估計是新唐產品以32位主了，8位的51資料少的可憐

有時間再試試1折買的其他板子