/**
  ******************************************************************************
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  * Copyright (C) 2021 Shanghai Eastsoft Microelectronics Co., Ltd. ALL rights reserved.
  *******************************************************************************
  */

<--------------------------------------------------------------------------------
Version history:
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2024-03-15	V1.0.0	AE TEAM

<--------------------------------------------------------------------------------
Demo introduction:
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本示例功能：
(1).使用SPI接收Bootloader跳转指令，跳转到boot程序。
(2).APP程序的Led1为常亮状态

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测试环境:
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测试用板；
ES-PDS-ES8H0464ELLT

辅助工具：
多功能接口转换工具ESBridge

辅助软件：
ESBridge上位机软件

<--------------------------------------------------------------------------------
测试步骤：
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(1) 在先用scons生成工程，或者在有工程的前提下，对工程文件进行配置，设置芯片的下载地址为0，
大小为0xE600.
(2) 编译工程，编译通过后将程序下载到目标芯片。
(3) 启动ES-Bridge,打开SPI，设置时钟极性和时钟相位为0，位移方向为高位在前，速度为656K
点击下面SPI_BOOT选项，进入后选择好芯片和hex文件。
(4) 选择引导程序到Bootloader。

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System clock:
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Internal HRC 48MHz

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Pin connection: 
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SPI_CLK_PIN  ----  PA24[GPIO_FUNC_3]
SPI_CS_PIN  ----  PA21[GPIO_FUNC_1]
SPI_MISO_PIN  ----  PA20[GPIO_FUNC_6]
SPI_MOSI_PIN  ----  PA18[GPIO_FUNC_5]
LED_1_PIN  ----  PA10[GPIO_FUNC_0]
COM_1_PIN  ----  PA14[GPIO_FUNC_0]
COM_2_PIN  ----  PA15[GPIO_FUNC_0]
COM_3_PIN  ----  PA16[GPIO_FUNC_0]
