- /****************************************************************************
- * [url=home.php?mod=space&uid=288409]@file[/url] main.c
- * [url=home.php?mod=space&uid=895143]@version[/url] V1.00
- * $Revision: 8 $
- * $Date: 14/01/28 11:45a $
- * [url=home.php?mod=space&uid=247401]@brief[/url] M051 Series UART Interface Controller Driver Sample Code
- *
- * @note
- * Copyright (C) 2011 Nuvoton Technology Corp. All rights reserved.
- *
- ******************************************************************************/
- #include <stdio.h>
- #include "M051Series.h"
- #define PLL_CLOCK 50000000
- #define RXBUFSIZE 1024
- /*---------------------------------------------------------------------------------------------------------*/
- /* Global variables */
- /*---------------------------------------------------------------------------------------------------------*/
- uint8_t g_u8SendData[12] = {0};
- uint8_t g_u8RecData[RXBUFSIZE] = {0};
- volatile int32_t g_i32pointer = 0;
- /*---------------------------------------------------------------------------------------------------------*/
- /* Define functions prototype */
- /*---------------------------------------------------------------------------------------------------------*/
- extern char GetChar(void);
- int32_t main(void);
- void AutoFlow_FunctionRxTest(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 RTS */
- SYS->P0_MFP = SYS->P0_MFP & (~SYS_MFP_P01_Msk) | SYS_MFP_P01_RTS1;
- }
- 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 slave function */
- AutoFlow_FunctionRxTest();
- while(1);
- }
- /*---------------------------------------------------------------------------------------------------------*/
- /* ISR to handle UART Channel 1 interrupt event */
- /*---------------------------------------------------------------------------------------------------------*/
- void UART1_IRQHandler(void)
- {
- volatile uint32_t u32IntSts = UART1->ISR;;
- /* Rx Ready or Time-out INT*/
- if(UART_GET_INT_FLAG(UART1, UART_ISR_RDA_INT_Msk) || UART_GET_INT_FLAG(UART1, UART_ISR_TOUT_INT_Msk))
- {
- /* Handle received data */
- g_u8RecData[g_i32pointer] = UART_READ(UART1);
- g_i32pointer++;
- }
- }
- /*---------------------------------------------------------------------------------------------------------*/
- /* AutoFlow Function Test (Slave) */
- /*---------------------------------------------------------------------------------------------------------*/
- void AutoFlow_FunctionRxTest()
- {
- 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 (Slave) |\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);
- /* Set RTS Trigger Level as 8 bytes */
- UART1->FCR &= ~UART_FCR_RTS_TRI_LEV_Msk;
- UART1->FCR |= UART_FCR_RTS_TRI_LEV_8BYTES;
- /* Enable RDA\RLS\RTO Interrupt */
- UART_ENABLE_INT(UART1, (UART_IER_RDA_IEN_Msk | UART_IER_RLS_IEN_Msk | UART_IER_RTO_IEN_Msk));
- /* Set RX Trigger Level as 8 bytes */
- UART1->FCR &= ~UART_FCR_RFITL_Msk;
- UART1->FCR |= UART_FCR_RFITL_8BYTES;
- /* Set Timeout time 0x3E bit-time and time-out counter enable */
- UART_SetTimeoutCnt(UART1, 0x3E);
- /* Enable UART1 IRQ */
- NVIC_EnableIRQ(UART1_IRQn);
- printf("\n Starting to receive data...\n");
- /* Wait for receive 1k bytes data */
- while(g_i32pointer < RXBUFSIZE);
- /* Compare Data */
- for(u32i = 0; u32i < RXBUFSIZE; u32i++)
- {
- if(g_u8RecData[u32i] != (u32i & 0xFF))
- {
- printf("Compare Data Failed\n");
- while(1);
- }
- }
- printf("\n Receive OK & Check OK\n");
- /* Disable UART1 IRQ */
- NVIC_DisableIRQ(UART1_IRQn);
- /* Disable RDA\RLS\RTO Interrupt */
- UART_DISABLE_INT(UART1, (UART_IER_RDA_IEN_Msk | UART_IER_RLS_IEN_Msk | UART_IER_RTO_IEN_Msk));
- }
|