/****************************************************************************
* @file main.c
* @version V2.00
* $Revision: 7 $
* $Date: 14/11/27 2:37p $
* @brief Transmit and receive data from PC terminal through RS232 interface.
* @note
* Copyright (C) 2014 Nuvoton Technology Corp. All rights reserved.
*
******************************************************************************/
#include <stdio.h>
#include "NUC200Series.h"
#define PLL_CLOCK 50000000
#define RXBUFSIZE 1024
//#define UART_WRITE(uart, u8Data) ((uart)->THR = (u8Data))
/*---------------------------------------------------------------------------------------------------------*/
/* Global variables */
/*---------------------------------------------------------------------------------------------------------*/
uint8_t g_u8RecData[RXBUFSIZE] = {0};
volatile uint32_t g_u32comRbytes = 0;
volatile uint32_t g_u32comRhead = 0;
volatile uint32_t g_u32comRtail = 0;
volatile int32_t g_bWait = TRUE;
/*---------------------------------------------------------------------------------------------------------*/
/* Define functions prototype */
/*---------------------------------------------------------------------------------------------------------*/
int32_t main(void);
void UART_TEST_HANDLE(void);
void UART_FunctionTest(void);
void SYS_Init(void)
{
/*---------------------------------------------------------------------------------------------------------*/
/* Init System Clock */
/*---------------------------------------------------------------------------------------------------------*/
/* Enable Internal RC 22.1184MHz clock */
CLK_EnableXtalRC(CLK_PWRCON_OSC22M_EN_Msk);
/* Waiting for Internal RC clock ready */
CLK_WaitClockReady(CLK_CLKSTATUS_OSC22M_STB_Msk);
/* Switch HCLK clock source to Internal RC and HCLK source divide 1 */
CLK_SetHCLK(CLK_CLKSEL0_HCLK_S_HIRC, CLK_CLKDIV_HCLK(1));
/* Enable external XTAL 12MHz clock */
CLK_EnableXtalRC(CLK_PWRCON_XTL12M_EN_Msk);
/* Waiting for external XTAL clock ready */
CLK_WaitClockReady(CLK_CLKSTATUS_XTL12M_STB_Msk);
/* Set core clock as PLL_CLOCK from PLL */
CLK_SetCoreClock(PLL_CLOCK);
/* Enable UART module clock */
CLK_EnableModuleClock(UART0_MODULE);
/* Enable UART module clock */
CLK_EnableModuleClock(UART1_MODULE);
/* Enable UART module clock */
CLK_EnableModuleClock(UART2_MODULE);
/* Select UART module clock source */
CLK_SetModuleClock(UART0_MODULE, CLK_CLKSEL1_UART_S_HXT, CLK_CLKDIV_UART(1));
/* Select UART module clock source */
CLK_SetModuleClock(UART1_MODULE, CLK_CLKSEL1_UART_S_HXT, CLK_CLKDIV_UART(1));
/* Select UART module clock source */
CLK_SetModuleClock(UART2_MODULE, CLK_CLKSEL1_UART_S_HXT, CLK_CLKDIV_UART(1));
/*---------------------------------------------------------------------------------------------------------*/
/* Init I/O Multi-function */
/*---------------------------------------------------------------------------------------------------------*/
/* Set GPB multi-function pins for UART0 RXD and TXD */
SYS->GPB_MFP &= ~(SYS_GPB_MFP_PB0_Msk | SYS_GPB_MFP_PB1_Msk);
SYS->GPB_MFP |= SYS_GPB_MFP_PB0_UART0_RXD | SYS_GPB_MFP_PB1_UART0_TXD;
/* Set GPB multi-function pins for UART1 RXD and TXD */
SYS->GPB_MFP &= ~(SYS_GPB_MFP_PB4_Msk | SYS_GPB_MFP_PB5_Msk);
SYS->GPB_MFP |= SYS_GPB_MFP_PB4_UART1_RXD | SYS_GPB_MFP_PB5_UART1_TXD;
/* Set GPB multi-function pins for UART2 RXD and TXD */
SYS->GPB_MFP &= ~(SYS_GPD_MFP_PD14_Msk | SYS_GPD_MFP_PD15_Msk);
SYS->GPB_MFP |= SYS_GPD_MFP_PD14_UART2_RXD | SYS_GPD_MFP_PD15_UART2_TXD;
}
void UART0_Init()
{
/*---------------------------------------------------------------------------------------------------------*/
/* Init UART */
/*---------------------------------------------------------------------------------------------------------*/
/* Reset UART0 */
SYS_ResetModule(UART0_RST);
/* Configure UART0 and set UART0 Baudrate */
UART_Open(UART0, 115200);
}
void UART1_Init()
{
/*---------------------------------------------------------------------------------------------------------*/
/* Init UART */
/*---------------------------------------------------------------------------------------------------------*/
/* Reset UART0 */
SYS_ResetModule(UART1_RST);
/* Configure UART0 and set UART0 Baudrate */
UART_Open(UART1, 115200);
}
void UART2_Init()
{
/*---------------------------------------------------------------------------------------------------------*/
/* Init UART */
/*---------------------------------------------------------------------------------------------------------*/
/* Reset UART0 */
SYS_ResetModule(UART2_RST);
/* Configure UART0 and set UART0 Baudrate */
UART_Open(UART2, 115200);
}
/*---------------------------------------------------------------------------------------------------------*/
/* UART Test Sample */
/* Test Item */
/* It sends the received data to HyperTerminal. */
/*---------------------------------------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------------------------------------*/
/* MAIN function */
/*---------------------------------------------------------------------------------------------------------*/
int main(void)
{
int8_t i = 0;
int16_t del = 0;
/* Unlock protected registers */
SYS_UnlockReg();
/* Init System, peripheral clock and multi-function I/O */
SYS_Init();
/* Lock protected registers */
SYS_LockReg();
/* Init UART0 for printf and testing */
UART0_Init();
UART1_Init();
UART2_Init();
/*---------------------------------------------------------------------------------------------------------*/
/* SAMPLE CODE */
/*---------------------------------------------------------------------------------------------------------*/
printf("\n\nCPU @ %dHz\n", SystemCoreClock);
printf("\n\nUART Sample Program\n");
for(i=0;i<16;i++)
{
UART_WRITE(UART1,i);
}
/* UART sample function */
// UART_FunctionTest();
while(1)
{
UART_WRITE(UART2,i);
UART_WRITE(UART1,i);
i++;
del = 60000;
while(del--);
}
}
串口0 与串口1 是正常的，串口2怎么试都不行，请问是什么问题？ |
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