| /*********************************************************************************************************************** | |
| * 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) 2014 Renesas Electronics Corporation. All rights reserved. | |
| ***********************************************************************************************************************/ | |
| /*********************************************************************************************************************** | |
| * System Name : RZ/T1 SCIF program | |
| * File Name : siochar.c | |
| * Version : 0.1 | |
| * Device : R7S910018 | |
| * Abstract : Serial I/O settings controlling the character | |
| * Tool-Chain : GNUARM-NONEv14.02-EABI | |
| * OS : not use | |
| * H/W Platform : Renesas Starter Kit for RZ/T1(Preliminary) | |
| * Description : Control the character with serial I/O | |
| * Limitation : none | |
| ***********************************************************************************************************************/ | |
| /*********************************************************************************************************************** | |
| * History : DD.MM.YYYY Version Description | |
| * : 21.05.2015 1.00 First Release | |
| ***********************************************************************************************************************/ | |
| /*********************************************************************************************************************** | |
| Includes <System Includes> , "Project Includes" | |
| ***********************************************************************************************************************/ | |
| #include "r_cg_macrodriver.h" | |
| #include "r_cg_userdefine.h" | |
| #include "r_cg_scifa.h" | |
| #include "siochar.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: io_init_scifa2 | |
| * Description : This function initialises SCIFA channel 2 as UART mode. | |
| * : The transmit and the receive of SCIFA channel 2 are enabled. | |
| * Arguments : none | |
| * Return Value : none | |
| ***********************************************************************************************************************/ | |
| void io_init_scifa2 (void) | |
| { | |
| /* === Initialisation of SCIFA2 if not already initialised ==== */ | |
| if (1 == MSTP_SCIFA2) | |
| { | |
| R_SCIFA2_Create(); | |
| } | |
| /* Ensure receive FIFO trigger is set to 1 */ | |
| SCIFA2.FCR.BIT.RTRG = 0U; | |
| /* Reception triggered by one data */ | |
| SCIFA2.FTCR.BIT.RFTC = 1u; | |
| /* Enable reception and receive interrupts */ | |
| SCIFA2.SCR.BIT.RE = 1U; | |
| SCIFA2.SCR.BIT.RIE = 1U; | |
| SCIFA2.SCR.BIT.REIE = 1U; | |
| } | |
| /*********************************************************************************************************************** | |
| End of function io_init_scifa2 | |
| ***********************************************************************************************************************/ | |
| /*********************************************************************************************************************** | |
| * Function Name: io_get_char | |
| * Description : One character is received from SCIFA2, 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 io_get_char (void) | |
| { | |
| char data; | |
| /* Confirming receive error (ER,BRK,FER,PER) */ | |
| if (SCIFA2.FSR.WORD & 0x09Cu) | |
| { | |
| /* ---- Detect receive error ---- */ | |
| /* Disable reception */ | |
| SCIFA2.SCR.BIT.RE = 0U; | |
| /* Reset receiving FIFO */ | |
| SCIFA2.FCR.BIT.RFRST = 1U; | |
| /* Clearing FIFO reception reset */ | |
| SCIFA2.FCR.BIT.RFRST = 0U; | |
| /* Error bit clear */ | |
| SCIFA2.FSR.BIT.DR = 0U; | |
| SCIFA2.FSR.BIT.RDF = 0U; | |
| /* Enable reception */ | |
| SCIFA2.SCR.BIT.RE = 1U; | |
| return (0); | |
| } | |
| /* Is there receive FIFO data? */ | |
| while (0 == SCIFA2.FSR.BIT.RDF) | |
| { | |
| /* Wait */ | |
| } | |
| /* Read receive data */ | |
| data = SCIFA2.FRDR; | |
| /* Clear RDF */ | |
| SCIFA2.FSR.BIT.RDF = 0U; | |
| /* Is it overflowed? */ | |
| if (1 == SCIFA2.LSR.BIT.ORER) | |
| { | |
| /* ORER clear */ | |
| SCIFA2.LSR.BIT.ORER = 0U; | |
| } | |
| return (data); | |
| } | |
| /*********************************************************************************************************************** | |
| End of function io_get_char | |
| ***********************************************************************************************************************/ | |
| /*********************************************************************************************************************** | |
| * Function Name: io_put_char | |
| * Description : Character "buffer" is output to SCIFA2. | |
| * : This function keeps waiting until it becomes the transmission | |
| * : enabled state. | |
| * Arguments : char buffer : character to output | |
| * Return Value : None | |
| ***********************************************************************************************************************/ | |
| void io_put_char (char buffer) | |
| { | |
| /* Check if it is possible to transmit (TDFE flag) */ | |
| while (0 == SCIFA2.FSR.BIT.TDFE) | |
| { | |
| /* Wait */ | |
| } | |
| /* Send the character via the terminal output */ | |
| R_SCIFA2_Serial_Send((uint8_t *)&buffer, 1); | |
| /* Clear TEND flag */ | |
| SCIFA2.FSR.BIT.TEND = 0u; | |
| } | |
| /*********************************************************************************************************************** | |
| * End of function io_put_char | |
| ***********************************************************************************************************************/ | |
| /* End of File */ | |