94 lines
2.5 KiB
C
94 lines
2.5 KiB
C
/**
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* \file
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*
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* \brief RWWEE Flash Array Read-Write Example
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*
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* Copyright (c) 2018 Microchip Technology Inc. and its subsidiaries.
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*
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* \asf_license_start
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*
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* \page License
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*
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* Subject to your compliance with these terms, you may use Microchip
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* software and any derivatives exclusively with Microchip products.
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* It is your responsibility to comply with third party license terms applicable
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* to your use of third party software (including open source software) that
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* may accompany Microchip software.
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*
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* THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
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* WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
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* INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
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* AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
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* LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
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* LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
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* SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
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* POSSIBILITY OR THE DAMAGES ARE FORESEEABLE. TO THE FULLEST EXTENT
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* ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
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* RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
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* THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
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*
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* \asf_license_stop
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*
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*/
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/*
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* Support and FAQ: visit <a href="https://www.microchip.com/support/">Microchip Support</a>
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*/
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#include <atmel_start.h>
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#include "driver_init.h"
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static uint8_t src_buff[128];
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static uint8_t chk_buff[128];
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/**
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* Example of using FLASH to read and write Flash RWWEE array.
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*/
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void rww_flash(void)
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{
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uint32_t page_size;
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uint16_t i;
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bool is_corrupted = false;
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/* Init source data */
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page_size = _rww_flash_get_page_size(&FLASH_0.dev);
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for (i = 0; i < page_size; i++) {
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src_buff[i] = i;
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}
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/* Write data to RWWEE flash */
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if (_rww_flash_write(&FLASH_0.dev, NVMCTRL_RWW_EEPROM_ADDR, src_buff, page_size) != ERR_NONE) {
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printf("RWW flash write failed.");
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}
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/* Read data from RWWEE flash */
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if (_rww_flash_read(&FLASH_0.dev, NVMCTRL_RWW_EEPROM_ADDR, chk_buff, page_size) != ERR_NONE) {
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printf("RWW flash read failed.");
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}
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/* Check data */
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for (i = 0; i < page_size; i++) {
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if (src_buff[i] != chk_buff[i]) {
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is_corrupted = true;
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printf("RWW Flash data verification failed.");
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break;
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}
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}
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if (!is_corrupted) {
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printf("One page Write - Read is successful in RWW Flash memory");
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}
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}
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int main(void)
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{
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/* Initializes MCU, drivers and middleware */
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atmel_start_init();
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/* Read and write Flash RWWEE array */
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rww_flash();
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while (1) {
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}
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}
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