/**************************************************************************//**
* [url=home.php?mod=space&uid=288409]@file[/url] main.c
* [url=home.php?mod=space&uid=895143]@version[/url] V2.10
* $Revision: 3 $
* $Date: 14/01/28 11:44a $
* [url=home.php?mod=space&uid=247401]@brief[/url] M051 Series Timer Controller and Watchdog Timer Driver Sample Code
*
* @note
* Copyright (C) 2011 Nuvoton Technology Corp. All rights reserved.
*
******************************************************************************/
#include <stdio.h>
#include "M051Series.h"
#define PLLCON_SETTING CLK_PLLCON_50MHz_XTAL
#define PLL_CLOCK 50000000
void SYS_Init(void)
{
/*---------------------------------------------------------------------------------------------------------*/
/* Init System Clock */
/*---------------------------------------------------------------------------------------------------------*/
/* Enable External XTAL (4~24 MHz) */
CLK->PWRCON &= ~CLK_PWRCON_XTL12M_EN_Msk;
CLK->PWRCON |= (0x1 << CLK_PWRCON_XTL12M_EN_Pos); // XTAL12M (HXT) Enabled
/* Waiting for 12MHz clock ready */
while(!(CLK->CLKSTATUS & CLK_CLKSTATUS_XTL12M_STB_Msk));
/* Enable IP clock */
CLK->APBCLK |= CLK_APBCLK_UART0_EN_Msk; // UART Clock Enable
/* Select IP clock source */
CLK->CLKSEL1 &= ~CLK_CLKSEL1_UART_S_Msk;
CLK->CLKSEL1 |= (0x0 << CLK_CLKSEL1_UART_S_Pos);// Clock source from external 12 MHz
/* Set P30(RXD0),P31(TXD0) multi-function pins for UART0 RXD and TXD */
SYS->P3_MFP = SYS_MFP_P30_RXD0 | SYS_MFP_P31_TXD0;
}
void UART0_Init(void)
{
/*---------------------------------------------------------------------------------------------------------*/
/* Init UART */
/*---------------------------------------------------------------------------------------------------------*/
/* Configure UART0 and set UART0 Baudrate */
UART0->LCR = UART_WORD_LEN_8 | UART_PARITY_NONE | UART_STOP_BIT_1;
UART0->BAUD = UART_BAUD_MODE2 | UART_BAUD_MODE2_DIVIDER(__HXT, 115200);
}
void HDIV_Init(void)
{
/* Enable Hardware Divider Clock */
CLK->AHBCLK |= CLK_AHBCLK_HDIV_EN_Msk;
}
/*---------------------------------------------------------------------------------------------------------*/
/* MAIN function */
/*---------------------------------------------------------------------------------------------------------*/
int main(void)
{
/* Disable register write-protection function */
SYS_UnlockReg();
/* Init System, IP clock and multi-function I/O */
SYS_Init();
/* Init UART0 for printf */
UART0_Init();
/* Init Divider */
HDIV_Init();
printf("+----------------------------------------------+\n");
printf("| M05xx Divider Sample Code |\n");
printf("+----------------------------------------------+\n");
printf("\n");
printf("12341 / 123 = %d\n", HDIV_Div(12341, 123));
printf("12341 %% 123 = %d\n", HDIV_Mod(12341, 123));
/* Lock protected registers */
SYS_LockReg();
printf("Done\n");
while(SYS->PDID);
return 0;
}
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