194 lines
6.2 KiB
C
194 lines
6.2 KiB
C
/**
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* Microcontroller specific code for CANopenNode nonvolatile variables.
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*
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* This file is a template for other microcontrollers.
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*
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* @file eeprom.h
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* @ingroup CO_eeprom
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* @author Janez Paternoster
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* @copyright 2004 - 2013 Janez Paternoster
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*
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* This file is part of CANopenNode, an opensource CANopen Stack.
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* Project home page is <https://github.com/CANopenNode/CANopenNode>.
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* For more information on CANopen see <http://www.can-cia.org/>.
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*
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* CANopenNode is free and open source software: you can redistribute
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* it and/or modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation, either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* Following clarification and special exception to the GNU General Public
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* License is included to the distribution terms of CANopenNode:
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*
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* Linking this library statically or dynamically with other modules is
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* making a combined work based on this library. Thus, the terms and
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* conditions of the GNU General Public License cover the whole combination.
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*
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* As a special exception, the copyright holders of this library give
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* you permission to link this library with independent modules to
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* produce an executable, regardless of the license terms of these
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* independent modules, and to copy and distribute the resulting
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* executable under terms of your choice, provided that you also meet,
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* for each linked independent module, the terms and conditions of the
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* license of that module. An independent module is a module which is
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* not derived from or based on this library. If you modify this
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* library, you may extend this exception to your version of the
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* library, but you are not obliged to do so. If you do not wish
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* to do so, delete this exception statement from your version.
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*/
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#include "CO_driver.h"
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#include "CO_SDO.h"
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#include "CO_Emergency.h"
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#include "eeprom.h"
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#include "crc16-ccitt.h"
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/**
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* OD function for accessing _Store parameters_ (index 0x1010) from SDO server.
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*
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* For more information see file CO_SDO.h.
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*/
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static CO_SDO_abortCode_t CO_ODF_1010(CO_ODF_arg_t *ODF_arg);
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static CO_SDO_abortCode_t CO_ODF_1010(CO_ODF_arg_t *ODF_arg){
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//CO_EE_t *ee;
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uint32_t value;
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CO_SDO_abortCode_t ret = CO_SDO_AB_NONE;
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//ee = (CO_EE_t*) ODF_arg->object;
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value = CO_getUint32(ODF_arg->data);
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if(!ODF_arg->reading){
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/* don't change the old value */
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CO_memcpy(ODF_arg->data, (const uint8_t*)ODF_arg->ODdataStorage, 4U);
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if(ODF_arg->subIndex == 1U){
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if(value == 0x65766173UL){
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/* write ee->OD_ROMAddress, ee->OD_ROMSize to eeprom (blocking function) */
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/* verify data */
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if(0/*error*/){
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ret = CO_SDO_AB_HW;
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}
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}
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else{
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ret = CO_SDO_AB_DATA_TRANSF;
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}
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}
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}
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return ret;
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}
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/**
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* OD function for accessing _Restore default parameters_ (index 0x1011) from SDO server.
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*
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* For more information see file CO_SDO.h.
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*/
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static CO_SDO_abortCode_t CO_ODF_1011(CO_ODF_arg_t *ODF_arg);
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static CO_SDO_abortCode_t CO_ODF_1011(CO_ODF_arg_t *ODF_arg){
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//CO_EE_t *ee;
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uint32_t value;
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CO_SDO_abortCode_t ret = CO_SDO_AB_NONE;
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//ee = (CO_EE_t*) ODF_arg->object;
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value = CO_getUint32(ODF_arg->data);
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if(!ODF_arg->reading){
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/* don't change the old value */
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CO_memcpy(ODF_arg->data, (const uint8_t*)ODF_arg->ODdataStorage, 4U);
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if(ODF_arg->subIndex >= 1U){
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if(value == 0x64616F6CUL){
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/* Clear the eeprom */
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}
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else{
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ret = CO_SDO_AB_DATA_TRANSF;
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}
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}
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}
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return ret;
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}
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/******************************************************************************/
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CO_ReturnError_t CO_EE_init_1(
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CO_EE_t *ee,
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uint8_t *OD_EEPROMAddress,
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uint32_t OD_EEPROMSize,
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uint8_t *OD_ROMAddress,
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uint32_t OD_ROMSize)
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{
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/* verify arguments */
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if(ee==NULL || OD_EEPROMAddress==NULL || OD_ROMAddress==NULL){
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return CO_ERROR_ILLEGAL_ARGUMENT;
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}
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/* Configure eeprom */
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/* configure object variables */
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ee->OD_EEPROMAddress = OD_EEPROMAddress;
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ee->OD_EEPROMSize = OD_EEPROMSize;
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ee->OD_ROMAddress = OD_ROMAddress;
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ee->OD_ROMSize = OD_ROMSize;
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ee->OD_EEPROMCurrentIndex = 0U;
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ee->OD_EEPROMWriteEnable = false;
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/* read the CO_OD_EEPROM from EEPROM, first verify, if data are OK */
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/* read the CO_OD_ROM from EEPROM and verify CRC */
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return CO_ERROR_NO;
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}
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/******************************************************************************/
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void CO_EE_init_2(
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CO_EE_t *ee,
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CO_ReturnError_t eeStatus,
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CO_SDO_t *SDO,
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CO_EM_t *em)
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{
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CO_OD_configure(SDO, OD_H1010_STORE_PARAM_FUNC, CO_ODF_1010, (void*)ee, 0, 0U);
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CO_OD_configure(SDO, OD_H1011_REST_PARAM_FUNC, CO_ODF_1011, (void*)ee, 0, 0U);
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if(eeStatus != CO_ERROR_NO){
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CO_errorReport(em, CO_EM_NON_VOLATILE_MEMORY, CO_EMC_HARDWARE, (uint32_t)eeStatus);
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}
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}
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/******************************************************************************/
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void CO_EE_process(CO_EE_t *ee){
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if((ee != 0) && (ee->OD_EEPROMWriteEnable)/* && !isWriteInProcess()*/){
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uint32_t i;
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uint8_t RAMdata, eeData;
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/* verify next word */
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if(++ee->OD_EEPROMCurrentIndex == ee->OD_EEPROMSize){
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ee->OD_EEPROMCurrentIndex = 0U;
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}
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i = ee->OD_EEPROMCurrentIndex;
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/* read eeprom */
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RAMdata = ee->OD_EEPROMAddress[i];
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eeData = 0/*EE_readByte(i)*/;
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/* if bytes in EEPROM and in RAM are different, then write to EEPROM */
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if(eeData != RAMdata){
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/* EE_writeByteNoWait(RAMdata, i);*/
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}
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}
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}
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