- /******************************************************************************
- * [url=home.php?mod=space&uid=288409]@file[/url] main.c
- * [url=home.php?mod=space&uid=895143]@version[/url] V1.00
- * $Revision: 4 $
- * $Date: 14/09/11 7:15p $
- * [url=home.php?mod=space&uid=247401]@brief[/url] Demonstrate Smartcard UART mode by connecting PA.8 and PA.9 pins.
- *
- * @note
- * Copyright (C) 2014 Nuvoton Technology Corp. All rights reserved.
- *****************************************************************************/
- #include <stdio.h>
- #include "Nano100Series.h"
- uint8_t au8TxBuf[] = "Hello World!";
- uint8_t au8RxBuf[13]={0,0,0,0,0,0,0,0,0,0,0,0,0};
- uint8_t au8Rxindex=0;
- /**
- * @brief The interrupt services routine of smartcard port 0
- * @param None
- * @retval None
- */
- void SC0_IRQHandler(void)
- {
- // Print SCUART received data to UART port
- // Data length here is short, so we're not care about UART FIFO over flow.
- UART_WRITE(UART0, SCUART_READ(SC0));
- // RDA is the only interrupt enabled in this sample, this status bit
- // automatically cleared after Rx FIFO empty. So no need to clear interrupt
- // status here.
- return;
- }
- void SC1_IRQHandler(void)
- {
- UART_WRITE(UART0, SCUART_READ(SC0));
- au8RxBuf[au8Rxindex]=SCUART_READ(SC1);
- au8Rxindex++;
- if(au8Rxindex>=13)
- {
- au8Rxindex=0;
- }
- }
- void SYS_Init(void)
- {
- /*---------------------------------------------------------------------------------------------------------*/
- /* Init System Clock */
- /*---------------------------------------------------------------------------------------------------------*/
- /* Unlock protected registers */
- SYS_UnlockReg();
- /* Enable External XTAL (4~24 MHz) */
- CLK_EnableXtalRC(CLK_PWRCTL_HXT_EN_Msk);
- /* Waiting for 12MHz clock ready */
- CLK_WaitClockReady( CLK_CLKSTATUS_HXT_STB_Msk);
- /* Switch HCLK clock source to HXT */
- CLK_SetHCLK(CLK_CLKSEL0_HCLK_S_HXT,CLK_HCLK_CLK_DIVIDER(1));
- /* Enable IP clock */
- CLK_EnableModuleClock(UART0_MODULE);
- CLK_EnableModuleClock(SC0_MODULE);
- CLK_EnableModuleClock(SC1_MODULE);
- /* Select IP clock source */
- CLK_SetModuleClock(UART0_MODULE, CLK_CLKSEL1_UART_S_HXT, CLK_UART_CLK_DIVIDER(1));
- CLK_SetModuleClock(SC0_MODULE, CLK_CLKSEL2_SC_S_HXT, CLK_SC0_CLK_DIVIDER(1));
- CLK_SetModuleClock(SC1_MODULE, CLK_CLKSEL2_SC_S_HXT, CLK_SC0_CLK_DIVIDER(1));
- /* Update System Core Clock */
- /* User can use SystemCoreClockUpdate() to calculate SystemCoreClock. */
- SystemCoreClockUpdate();
- /*---------------------------------------------------------------------------------------------------------*/
- /* Init I/O Multi-function */
- /*---------------------------------------------------------------------------------------------------------*/
- /* Set GPB multi-function pins for UART0 RXD and TXD */
- SYS->PB_L_MFP &= ~(SYS_PB_L_MFP_PB0_MFP_Msk | SYS_PB_L_MFP_PB1_MFP_Msk);
- SYS->PB_L_MFP |= (SYS_PB_L_MFP_PB1_MFP_UART0_TX | SYS_PB_L_MFP_PB0_MFP_UART0_RX);
- /* Set PA.8 and PA.9 pin for SC UART mode */
- SYS->PA_H_MFP &= ~(SYS_PA_H_MFP_PA8_MFP_Msk | SYS_PA_H_MFP_PA9_MFP_Msk);
- SYS->PA_H_MFP |= (SYS_PA_H_MFP_PA8_MFP_SC0_CLK | SYS_PA_H_MFP_PA9_MFP_SC0_DAT);
- SYS->PC_L_MFP &= ~(SYS_PC_L_MFP_PC0_MFP_Msk | SYS_PC_L_MFP_PC1_MFP_Msk);
- SYS->PC_L_MFP |= (SYS_PC_L_MFP_PC0_MFP_SC1_CLK | SYS_PC_L_MFP_PC1_MFP_SC1_DAT);
- /* Lock protected registers */
- SYS_LockReg();
- }
- int main(void)
- {
- /* Init System, IP clock and multi-function I/O
- In the end of SYS_Init() will issue SYS_LockReg()
- to lock protected register. If user want to write
- protected register, please issue SYS_UnlockReg()
- to unlock protected register if necessary */
- SYS_Init();
- /* Init UART to 115200-8n1 for print message */
- UART_Open(UART0, 115200);
- printf("This sample code demos smartcard interface UART mode\n");
- printf("Please connect SC0 CLK pin(PA.8) with SC0 I/O pin(PA.9)\n");
- printf("Hit any key to continue\n");
- // getchar();
- // Open smartcard interface 0 in UART mode.
- SCUART_Open(SC0, 115200);
- SCUART_Open(SC1, 115200);
- // Enable smartcard receive interrupt
- SCUART_ENABLE_INT(SC0, SC_IER_RDA_IE_Msk);
- NVIC_EnableIRQ(SC0_IRQn);
- SCUART_ENABLE_INT(SC1, SC_IER_RDA_IE_Msk);
- NVIC_EnableIRQ(SC1_IRQn);
- // Write output buffer to smartcard tx FIFO
- SCUART_Write(SC0, au8TxBuf, sizeof(au8TxBuf));
- while(1);
- }
- /*** (C) COPYRIGHT 2014 Nuvoton Technology Corp. ***/
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