/****************************************************************************
* [url=home.php?mod=space&uid=288409]@file[/url] main.c
* [url=home.php?mod=space&uid=895143]@version[/url] V3.00
* $Revision: 7 $
* $Date: 15/09/02 10:05a $
* @brief
* Transmit and receive data in UART IrDA mode.
* This sample code needs to work with UART_IrDA_Slave.
* @note
* Copyright (C) 2014~2015 Nuvoton Technology Corp. All rights reserved.
*
******************************************************************************/
#include <stdio.h>
#include "M451Series.h"
#define PLL_CLOCK 72000000
/*---------------------------------------------------------------------------------------------------------*/
/* Define functions prototype */
/*---------------------------------------------------------------------------------------------------------*/
extern char GetChar(void);
int32_t main(void);
void IrDA_FunctionTxTest(void);
/*---------------------------------------------------------------------------------------------------------*/
/* IrDA Function Transmit Test */
/*---------------------------------------------------------------------------------------------------------*/
void IrDA_FunctionTxTest()
{
uint8_t u8OutChar;
printf("\n");
printf("+-----------------------------------------------------------+\n");
printf("| Pin Configure |\n");
printf("+-----------------------------------------------------------+\n");
printf("| ______ _______ |\n");
printf("| | | | | |\n");
printf("| |Master|--UART1_TXD(PB.3) <==> UART1_RXD(PB.2)--|Slave | |\n");
printf("| | | | | |\n");
printf("| |______| |_______| |\n");
printf("| |\n");
printf("+-----------------------------------------------------------+\n");
printf("\n");
printf("+-----------------------------------------------------------+\n");
printf("| IrDA Function Test |\n");
printf("+-----------------------------------------------------------+\n");
printf("| Description : |\n");
printf("| The sample code needs two boards. One is Master and |\n");
printf("| the other is slave. Master will send data based on |\n");
printf("| terminal input and Slave will printf received data on |\n");
printf("| terminal screen. |\n");
printf("+-----------------------------------------------------------+\n");
/*
UART0 is set to debug port and connect with PC firstly.
The IrDA sample code needs two module board to execute.
Set the master board is IrDA TX Mode and the other is IrDA Rx mode.
Inputting char on terminal will be sent to the UART0 of master.
After the master receiving, the inputting char will send to UART0 again.
At the same time, it also sends to UART1 TX pin by IrDA mode.
Slave will print received char after UART1 send out.
Note that IrDA mode is ONLY used when baud rate equation is selected mode 0.
*/
printf("\n");
printf("+-----------------------------------------------------------+\n");
printf("| IrDA Function Mode Test (Master) |\n");
printf("+-----------------------------------------------------------+\n");
printf("| 1). Input char by UART0 terminal. |\n");
printf("| 2). UART1 will send a char according to step 1. |\n");
printf("| 3). Return step 1. (Press '0' to exit) |\n");
printf("+-----------------------------------------------------------+\n");
printf("\nIrDA Sample Code Start. \n");
/* Set IrDA Tx Mode, Baud Rate configuration must be used MODE0 */
UART_SelectIrDAMode(UART1, 57600, UART_IRDA_TXEN);
/* Wait Terminal input to send data to UART1 TX pin */
do
{
u8OutChar = GetChar();
printf(" Input: %c , Send %c out\n", u8OutChar, u8OutChar);
UART_WRITE(UART1, u8OutChar);
}
while(u8OutChar != '0');
printf("\nIrDA Sample Code End.\n");
}
void SYS_Init(void)
{
/*---------------------------------------------------------------------------------------------------------*/
/* Init System Clock */
/*---------------------------------------------------------------------------------------------------------*/
/* Enable HIRC clock (Internal RC 22.1184MHz) */
CLK_EnableXtalRC(CLK_PWRCTL_HIRCEN_Msk);
/* Wait for HIRC clock ready */
CLK_WaitClockReady(CLK_STATUS_HIRCSTB_Msk);
/* Select HCLK clock source as HIRC and and HCLK source divider as 1 */
CLK_SetHCLK(CLK_CLKSEL0_HCLKSEL_HIRC, CLK_CLKDIV0_HCLK(1));
/* Enable HXT clock (external XTAL 12MHz) */
CLK_EnableXtalRC(CLK_PWRCTL_HXTEN_Msk);
/* Wait for HXT clock ready */
CLK_WaitClockReady(CLK_STATUS_HXTSTB_Msk);
/* Set core clock as PLL_CLOCK from PLL */
CLK_SetCoreClock(PLL_CLOCK);
/* Enable UART module clock */
CLK_EnableModuleClock(UART0_MODULE);
CLK_EnableModuleClock(UART1_MODULE);
/* Select UART module clock source as HXT and UART module clock divider as 1 */
CLK_SetModuleClock(UART0_MODULE, CLK_CLKSEL1_UARTSEL_HXT, CLK_CLKDIV0_UART(1));
CLK_SetModuleClock(UART1_MODULE, CLK_CLKSEL1_UARTSEL_HXT, CLK_CLKDIV0_UART(1));
/*---------------------------------------------------------------------------------------------------------*/
/* Init I/O Multi-function */
/*---------------------------------------------------------------------------------------------------------*/
/* Set PD multi-function pins for UART0 RXD(PD.0) and TXD(PD.1) */
SYS->GPD_MFPL &= ~(SYS_GPD_MFPL_PD0MFP_Msk | SYS_GPD_MFPL_PD1MFP_Msk);
SYS->GPD_MFPL |= (SYS_GPD_MFPL_PD0MFP_UART0_RXD | SYS_GPD_MFPL_PD1MFP_UART0_TXD);
/* Set PB multi-function pins for UART1 RXD(PB.2) and TXD(PB.3) */
SYS->GPB_MFPL &= ~(SYS_GPB_MFPL_PB2MFP_Msk | SYS_GPB_MFPL_PB3MFP_Msk);
SYS->GPB_MFPL |= (SYS_GPB_MFPL_PB2MFP_UART1_RXD | SYS_GPB_MFPL_PB3MFP_UART1_TXD);
}
void UART0_Init()
{
/*---------------------------------------------------------------------------------------------------------*/
/* Init UART */
/*---------------------------------------------------------------------------------------------------------*/
/* Reset UART0 module */
SYS_ResetModule(UART0_RST);
/* Configure UART0 and set UART0 Baudrate */
UART_Open(UART0, 115200);
}
void UART1_Init()
{
/*---------------------------------------------------------------------------------------------------------*/
/* Init UART */
/*---------------------------------------------------------------------------------------------------------*/
/* Reset UART1 module */
SYS_ResetModule(UART1_RST);
/* Configure UART1 and set UART1 Baudrate */
UART_Open(UART1, 115200);
}
/*---------------------------------------------------------------------------------------------------------*/
/* MAIN function */
/*---------------------------------------------------------------------------------------------------------*/
int main(void)
{
/* 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 */
UART0_Init();
/* Init UART1 for testing */
UART1_Init();
/*---------------------------------------------------------------------------------------------------------*/
/* SAMPLE CODE */
/*---------------------------------------------------------------------------------------------------------*/
printf("\n\nCPU [url=home.php?mod=space&uid=72445]@[/url] %dHz\n", SystemCoreClock);
printf("\nUART Sample Program\n");
/* UART sample IrDA Master function */
IrDA_FunctionTxTest();
while(1);
}
| 
楼主
标题置顶
标题高亮
