- /****************************************************************************
- * [url=home.php?mod=space&uid=288409]@file[/url] main.c
- * [url=home.php?mod=space&uid=895143]@version[/url] V1.00
- * $Revision: 7 $
- * $Date: 14/01/28 11:45a $
- * [url=home.php?mod=space&uid=247401]@brief[/url] NUC029 Series UART Interface Controller Driver Sample Code
- *
- * @note
- * Copyright (C) 2011 Nuvoton Technology Corp. All rights reserved.
- *
- ******************************************************************************/
- #include <stdio.h>
- #include "NUC029xAN.h"
- #define PLL_CLOCK 50000000
- #define RXBUFSIZE 1024
- /*---------------------------------------------------------------------------------------------------------*/
- /* Define functions prototype */
- /*---------------------------------------------------------------------------------------------------------*/
- extern char GetChar(void);
- int32_t main(void);
- void AutoFlow_FunctionTxTest(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);
- CLK_EnableModuleClock(UART1_MODULE);
- /* Select UART module clock source */
- CLK_SetModuleClock(UART0_MODULE, CLK_CLKSEL1_UART_S_HXT, CLK_CLKDIV_UART(1));
- CLK_SetModuleClock(UART1_MODULE, CLK_CLKSEL1_UART_S_HXT, CLK_CLKDIV_UART(1));
- /*---------------------------------------------------------------------------------------------------------*/
- /* Init I/O Multi-function */
- /*---------------------------------------------------------------------------------------------------------*/
- /* Set P3 multi-function pins for UART0 RXD and TXD */
- SYS->P3_MFP &= ~(SYS_MFP_P30_Msk | SYS_MFP_P31_Msk);
- SYS->P3_MFP |= (SYS_MFP_P30_RXD0 | SYS_MFP_P31_TXD0);
- /* Set P1 multi-function pins for UART1 RXD and TXD */
- SYS->P1_MFP &= ~(SYS_MFP_P12_Msk | SYS_MFP_P13_Msk);
- SYS->P1_MFP |= (SYS_MFP_P12_RXD1 | SYS_MFP_P13_TXD1);
- /* Set P0 multi-function pins for UART1 CTS */
- SYS->P0_MFP = SYS->P0_MFP & (~SYS_MFP_P00_Msk) | SYS_MFP_P00_CTS1;
- }
- 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, IP 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("\n\nUART Sample Program\n");
- /* UART auto flow sample master function */
- AutoFlow_FunctionTxTest();
- while(1);
- }
- /*---------------------------------------------------------------------------------------------------------*/
- /* AutoFlow Function Tx Test */
- /*---------------------------------------------------------------------------------------------------------*/
- void AutoFlow_FunctionTxTest()
- {
- uint32_t u32i;
- printf("\n");
- printf("+-----------------------------------------------------------+\n");
- printf("| Pin Configure |\n");
- printf("+-----------------------------------------------------------+\n");
- printf("| _______ _______ |\n");
- printf("| | | | | |\n");
- printf("| |Master |---TXD1(P1.3) <====> RXD1(P1.2)---| Slave | |\n");
- printf("| | |---CTS1(P0.0) <====> RTS1(P0.1)---| | |\n");
- printf("| |_______| |_______| |\n");
- printf("| |\n");
- printf("+-----------------------------------------------------------+\n");
- printf("\n");
- printf("+-----------------------------------------------------------+\n");
- printf("| AutoFlow Function Test (Master) |\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 1k bytes data |\n");
- printf("| to slave.Slave will check if received data is correct |\n");
- printf("| after getting 1k bytes data. |\n");
- printf("| Press any key to start... |\n");
- printf("+-----------------------------------------------------------+\n");
- GetChar();
- /* Enable RTS and CTS autoflow control */
- UART_EnableFlowCtrl(UART1);
- /* Send 1k bytes data */
- for(u32i = 0; u32i < RXBUFSIZE; u32i++)
- {
- /* Send 1 byte data */
- UART_WRITE(UART1, u32i & 0xFF);
- /* Wait if Tx FIFO is full */
- while(UART_IS_TX_FULL(UART1));
- }
- printf("\n Transmit Done\n");
- }
|