Diff: sample_programs/sample_01_flash_write.cpp

Revision:

0:b4c1e32627f2

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sample_programs/sample_01_flash_write.cpp	Mon Oct 12 02:25:49 2020 +0000
@@ -0,0 +1,89 @@
+/*******************************************************************************
+* 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) 2019 Renesas Electronics Corporation. All rights reserved.
+*******************************************************************************/
+#include "sample_select.h"
+
+#if (SAMPLE_PROGRAM_NO == 1)
+// SAMPLE_PROGRAM_NO  1 : FlashAPI sample
+//
+// This is a sample program of flash writing.
+// Writes to the address set in FLASH_ADDR.
+// Erasing is in units of 4096 bytes.
+
+#include "mbed.h"
+#include "mbed_drv_cfg.h"
+
+#define FLASH_ADDR  (FLASH_BASE + FLASH_SIZE - 0x100000)
+
+static uint8_t flash_work_buff[256];
+
+static void disp_flash_work_buff(void) {
+    for (uint32_t i = 0; i < sizeof(flash_work_buff); i++) {
+        if ((i != 0) && ((i & 0x0F) == 0x00)) {
+            printf("\r\n");
+        }
+        printf("%02x ", flash_work_buff[i]);
+    }
+    printf("\r\n\r\n");
+}
+
+int main(void) {
+    int ret;
+    uint32_t i;
+    FlashIAP flash;
+
+    flash.init();
+
+    // read
+    memset(flash_work_buff, 0, sizeof(flash_work_buff));
+    ret = flash.read(flash_work_buff, FLASH_ADDR, sizeof(flash_work_buff));
+    printf("flash.read ret=%d\r\n", (int)ret);
+    disp_flash_work_buff();
+
+    // erase
+    ret = flash.erase(FLASH_ADDR, flash.get_sector_size(FLASH_ADDR));
+    printf("flash.erase ret=%d\r\n", (int)ret);
+
+    // read
+    memset(flash_work_buff, 0, sizeof(flash_work_buff));
+    ret = flash.read(flash_work_buff, FLASH_ADDR, sizeof(flash_work_buff));
+    printf("flash.read ret=%d\r\n", (int)ret);
+    disp_flash_work_buff();
+
+    // write
+    for (i = 0; i < sizeof(flash_work_buff); i++) {
+        flash_work_buff[i] = i;
+    }
+    ret = flash.program(flash_work_buff, FLASH_ADDR, sizeof(flash_work_buff));
+    printf("flash.write ret=%d\r\n", (int)ret);
+
+    // read
+    memset(flash_work_buff, 0, sizeof(flash_work_buff));
+    ret = flash.read(flash_work_buff, FLASH_ADDR, sizeof(flash_work_buff));
+    printf("flash.read ret=%d\r\n", (int)ret);
+    disp_flash_work_buff();
+
+    while (1);
+}
+
+#endif