- /******************************************************************************
- * [url=home.php?mod=space&uid=288409]@file[/url] main.c
- * [url=home.php?mod=space&uid=895143]@version[/url] V1.00
- * [url=home.php?mod=space&uid=247401]@brief[/url] A simple demo for NuTiny-M261 board to show message from UART5 to ICE VCOM.
- *
- *
- * [url=home.php?mod=space&uid=17282]@CopyRight[/url] (C) 2019 Nuvoton Technology Corp. All rights reserved.
- *****************************************************************************/
- #include <stdio.h>
- #include "NuMicro.h"
- #include "clk.h"
- #include "uart.h"
- #include "gpio.h"
- #include "sys.h"
- #define LED_INIT() {PB->MODE = (PB->MODE &(~(0xf << 10*2))) | (0x5 << 10 * 2);}
- #define LED_RED PB10
- void SYS_Init(void)
- {
- /* Enable PLL */
- CLK->PLLCTL = CLK_PLLCTL_128MHz_HIRC;
- /* Waiting for PLL stable */
- while((CLK->STATUS & CLK_STATUS_PLLSTB_Msk) == 0);
- /* Set HCLK divider to 2 */
- CLK->CLKDIV0 = (CLK->CLKDIV0 & (~CLK_CLKDIV0_HCLKDIV_Msk)) | 1;
- /* Switch HCLK clock source to PLL */
- CLK->CLKSEL0 = (CLK->CLKSEL0 & (~CLK_CLKSEL0_HCLKSEL_Msk)) | CLK_CLKSEL0_HCLKSEL_PLL;
- /* Select IP clock source */
- CLK->CLKSEL1 = CLK_CLKSEL1_UART0SEL_HIRC;
- /* Enable IP clock */
- CLK->APBCLK0 |= CLK_APBCLK0_UART0CKEN_Msk;
- /* Update System Core Clock */
- /* User can use SystemCoreClockUpdate() to calculate PllClock, SystemCoreClock and CycylesPerUs automatically. */
- //SystemCoreClockUpdate();
- PllClock = 128000000; // PLL
- SystemCoreClock = 128000000 / 2; // HCLK
- CyclesPerUs = 64000000 / 1000000; // For SYS_SysTickDelay()
- /*---------------------------------------------------------------------------------------------------------*/
- /* Init I/O Multi-function */
- /*---------------------------------------------------------------------------------------------------------*/
- /* Set multi-function pins for UART0 RXD and TXD */
- SYS->GPB_MFPH = (SYS->GPB_MFPH & (~(UART0_RXD_PB12_Msk | UART0_TXD_PB13_Msk))) | UART0_RXD_PB12 | UART0_TXD_PB13;
- }
- void UART0_Init()
- {
- /*---------------------------------------------------------------------------------------------------------*/
- /* Init UART */
- /*---------------------------------------------------------------------------------------------------------*/
- UART0->LINE = UART_PARITY_NONE | UART_STOP_BIT_1 | UART_WORD_LEN_8;
- UART0->BAUD = UART_BAUD_MODE2 | UART_BAUD_MODE2_DIVIDER(__HIRC, 115200);
- }
- int main()
- {
- SYS_UnlockReg();
- SYS_Init();
- UART0_Init();
- printf("\n");
- printf("+------------------------------------------------------------------+\n");
- printf("| Simple Blinky Demo |\n");
- printf("+------------------------------------------------------------------+\n");
- /* Init GPIO for LED toggle */
- LED_INIT();
- LED_RED = 0;
- while(1)
- {
- LED_RED ^= 1;
- CLK_SysTickLongDelay(200000);
- LED_RED ^= 1;
- CLK_SysTickLongDelay(200000);
- }
- }
- /*** (C) COPYRIGHT 2019 Nuvoton Technology Corp. ***/
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