AM2434: AM2434 ALV 更换Flash，驱动错误

你好

项目使用AM2434 ALV，硬件设计无外挂DDR内存，使用外置Flash型号：gd25q64e，手册如下：

gd25q64e_rev1.4_20210820.pdf

参考AM243x MCU+ SDK: Writing flash driver for a custom flash device修改Flash驱动，修改完成后需要重新编译lib，请提供相关编译方法。

第一步：添加 OSPI Flash Diagnostic工程，通过JATG下载报错，提示不能写内存。报错如下图：

在论坛看到，相同的问题。还没有解决。链接如下：

https://e2e.ti.com/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum/1096852/am2434-custom-flash-driver-for-am2434-error/4102095?tisearch=e2e-sitesearch&keymatch=am2434#4102095

Shine：

关于JTAG的报错信息，请先看一下是否按照下面网站上的步骤一步步操作的？CCS Launch, Load and Runhttps://software-dl.ti.com/mcu-plus-sdk/esd/AM243X/08_02_00_31/exports/docs/api_guide_am243x/CCS_LAUNCH_PAGE.html

,

lin meng：

您好

JTAG接线配置都是没有问题的，LP开发板都是正常使用的。只是我们自己设计的板子，JTAG下载报这个错误。

,

Shine：

在load program之前，上面链接中的操作都做了么？

Prerequisites

A quick recap of the steps that need to have been done before you proceed

Make sure you have installed CCS as mentioned in Download, Install and Setup CCS
Make sure the UART port used for console is identified as mentioned in Setup UART Terminal
Make sure you have the EVM power cable, JTAG cable, UART cable connected as shown in Cable Connections
Make sure you have done the steps for a SOC initialization method

RECOMMENDED method is Flash SOC Initialization Binary
Other options, if recommended method cannot be used, are mentioned in SOC Initialization

Make sure EVM boot mode switch is setup correctly based on the SOC initilization method

For the RECOMMENDED method, Flash SOC Initialization Binary, the boot mode should be OSPI BOOT MODE

Make sure the UART or CCS console logs on doing EVM POWER-ON indicate that SOC initization is successful
Make sure you have built the example of interest as mentioned in Build a Hello World example