| /******************************************************************************* | |
| * DISCLAIMER | |
| * This software is supplied by Renesas Electronics Corporation and is only | |
| * intended for use with Renesas products. No other uses are authorized. This | |
| * software is owned by Renesas Electronics Corporation and is protected under | |
| * all applicable laws, including copyright laws. | |
| * THIS SOFTWARE IS PROVIDED "AS IS" AND RENESAS MAKES NO WARRANTIES REGARDING | |
| * THIS SOFTWARE, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING BUT NOT | |
| * LIMITED TO WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE | |
| * AND NON-INFRINGEMENT. ALL SUCH WARRANTIES ARE EXPRESSLY DISCLAIMED. | |
| * TO THE MAXIMUM EXTENT PERMITTED NOT PROHIBITED BY LAW, NEITHER RENESAS | |
| * ELECTRONICS CORPORATION NOR ANY OF ITS AFFILIATED COMPANIES SHALL BE LIABLE | |
| * FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR | |
| * ANY REASON RELATED TO THIS SOFTWARE, EVEN IF RENESAS OR ITS AFFILIATES HAVE | |
| * BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. | |
| * Renesas reserves the right, without notice, to make changes to this software | |
| * and to discontinue the availability of this software. By using this software, | |
| * you agree to the additional terms and conditions found by accessing the | |
| * following link: | |
| * http://www.renesas.com/disclaimer | |
| * | |
| * Copyright (C) 2012 Renesas Electronics Corporation. All rights reserved. | |
| *******************************************************************************/ | |
| /******************************************************************************* | |
| * File Name : siochar.c | |
| * $Rev: 17531 $ | |
| * $Date:: 2013-04-10 12:58:44 +0100#$ | |
| * Device(s) : Aragon | |
| * Tool-Chain : DS-5 Ver 5.8 | |
| * : ARM Complier | |
| * OS : | |
| * H/W Platform : Aragon CPU Board | |
| * Description : Aragon Sample Program - Serial I/O character R/W (SCIF 2-ch process) | |
| * Operation : | |
| * Limitations : | |
| *******************************************************************************/ | |
| /****************************************************************************** | |
| Includes <System Includes> , "Project Includes" | |
| ******************************************************************************/ | |
| #include "r_typedefs.h" | |
| #include "dev_drv.h" /* Device Driver common header */ | |
| #include "devdrv_scif_uart.h" /* UART Driver header */ | |
| #include "sio_char.h" | |
| #include "iodefine.h" | |
| /****************************************************************************** | |
| Typedef definitions | |
| ******************************************************************************/ | |
| /****************************************************************************** | |
| Macro definitions | |
| ******************************************************************************/ | |
| /****************************************************************************** | |
| Imported global variables and functions (from other files) | |
| ******************************************************************************/ | |
| /****************************************************************************** | |
| Exported global variables and functions (to be accessed by other files) | |
| ******************************************************************************/ | |
| /****************************************************************************** | |
| Private global variables and functions | |
| ******************************************************************************/ | |
| /****************************************************************************** | |
| * Function Name: IoInitScif2 | |
| * Description : This function initializes SCIF channel 2 as UART mode. | |
| * : The transmit and the receive of SCIF channel 2 are enabled. | |
| * Arguments : none | |
| * Return Value : none | |
| ******************************************************************************/ | |
| void IoInitScif2(void) | |
| { | |
| /* P1=66.67MHz CKS=0 SCBRR=17 Bit rate error=0.46% => Baud rate=115200bps */ | |
| R_SCIF_UART_Init(DEVDRV_CH_2, SCIF_UART_MODE_RW, 0, 17); | |
| /* === PORT ==== */ | |
| /* ---- P3_0 : TxD2 ---- */ | |
| PORT3.PMCn.BIT.PMCn0 = 1; | |
| PORT3.PFCAEn.BIT.PFCAEn0 = 1; | |
| PORT3.PFCEn.BIT.PFCEn0 = 0; | |
| PORT3.PFCn.BIT.PFCn0 = 1; | |
| PORT3.PIPCn.BIT.PIPCn0 = 1; | |
| /* ---- P3_2 : RxD2 ---- */ | |
| PORT3.PMCn.BIT.PMCn2 = 1; | |
| PORT3.PFCAEn.BIT.PFCAEn2 = 0; | |
| PORT3.PFCEn.BIT.PFCEn2 = 1; | |
| PORT3.PFCn.BIT.PFCn2 = 1; | |
| PORT3.PIPCn.BIT.PIPCn2 = 1; | |
| /* ---- Serial control register (SCSCRi) setting ---- */ | |
| SCIF2.SCSCR.WORD = 0x0030; | |
| /* SCIF2 transmitting and receiving operations are enabled */ | |
| } | |
| /****************************************************************************** | |
| * Function Name: IoGetchar | |
| * Description : One character is received from SCIF2, and it's data is returned. | |
| * : This function keeps waiting until it can obtain the receiving data. | |
| * Arguments : none | |
| * Return Value : Character to receive (Byte). | |
| ******************************************************************************/ | |
| char_t IoGetchar(void) | |
| { | |
| char_t data; | |
| /* Confirming receive error(ER,DR,BRK) */ | |
| if (SCIF2.SCFSR.WORD & 0x09C) | |
| { | |
| /* Detect receive error */ | |
| SCIF2.SCSCR.BIT.RE = 0; /* Disable reception */ | |
| SCIF2.SCFCR.BIT.RFRST = 1; /* Reset receiving FIFO */ | |
| SCIF2.SCFCR.BIT.RFRST = 0; /* Clearing FIFO reception reset */ | |
| SCIF2.SCFSR.WORD &= ~0x9C; /* Error bit clear */ | |
| SCIF2.SCSCR.BIT.RE = 1; /* Enable reception */ | |
| return 0; | |
| } | |
| /* Is there receive FIFO data? */ | |
| while (0 == SCIF2.SCFSR.BIT.RDF) | |
| { | |
| /* WAIT */ | |
| } | |
| /* Read receive data */ | |
| data = SCIF2.SCFRDR.BYTE; | |
| /* Clear RDF */ | |
| SCIF2.SCFSR.BIT.RDF = 0; | |
| /* Is it overflowed? */ | |
| if (1 == SCIF2.SCLSR.BIT.ORER) | |
| { | |
| SCIF2.SCLSR.BIT.ORER = 0; /* ORER clear */ | |
| } | |
| return data; | |
| } | |
| /****************************************************************************** | |
| * Function Name: IoPutchar | |
| * Description : Character "buffer" is output to SCIF2. | |
| * : This function keeps waiting until it becomes the transmission | |
| * : enabled state. | |
| * Arguments : char_t buffer : character to output | |
| * Return Value : None | |
| ******************************************************************************/ | |
| void IoPutchar(char_t buffer) | |
| { | |
| /* Check if it is possible to transmit (TDFE flag) */ | |
| while (0 == SCIF2.SCFSR.BIT.TDFE) | |
| { | |
| /* Wait */ | |
| } | |
| /* Write the receiving data in TDR */ | |
| SCIF2.SCFTDR.BYTE = buffer; | |
| /* Clear TDRE and TEND flag */ | |
| SCIF2.SCFSR.WORD &= ~0x0060; | |
| } | |
| /* End of File */ | |