﻿/**
  ******************************************************************************
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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  * Copyright (C) 2021 Shanghai Eastsoft Microelectronics Co., Ltd. ALL rights reserved.
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Version history:
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2021-8-3    V1.0.0      AE TEAM

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Demo introduction:
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本示例功能：使用外部NAND FLASH 烧录文件，将数据下载到NAND FLASH，复位后重新将NAND FLASH中的数据加载到SRAM中运行。

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测试环境:
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测试用板；
ES-PDS-ES32F369x-V2.1
ES-PDS-ES32SRAM_VGA3

辅助工具：
ES-LINKII

辅助软件：
XCOM V2.6

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测试步骤：
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1) 将05_ebi_nand_flm\MDK-ARM文件夹下的烧录文件ES32F36xx_ExtMemW29N01HV.FLM复制到IDE对应的文件夹下；
2) 编译工程，编译通过后将程序下载到目标芯片；
3) 将程序配置的TX/RX对应的引脚分别连接ES-LINKII的RX/TX；
4) 打开上位机软件XCOM，配置波特率115200，数据位8，停止位1，无校验；
5) 复位芯片，或在线调试，运行程序；
6) 接收框打印MCU发送的字符串，“function uart_pin_init is at 0xYYYYYYYY"以及“function uart_init is at 0xZZZZZZZZ”。
7) 步骤6中打印的地址均在SRAM上，即0x64000000~0x64010000

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注意：
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1) 

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System clock:
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External HOSC[12MHz] divided by 3, then PLL to 96MHz.

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Pin connection: 
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UART5_TX ---- (PB8, GPIO_FUNC_4)
UART5_RX ---- (PB9, GPIO_FUNC_4)