本帖最后由 ArterySW 于 2022-1-9 17:25 编辑
AT32 MCU QSPI 使用指南
前言：
本应用入门指南主要介绍以下几部分内容： 1. 基于雅特力提供的 V2.x.x 的 BSP 板级支持包来进行 QSPI 的命令端口的配置及操作 2. 基于雅特力提供的 V2.x.x 的 BSP 板级支持包来进行 QSPI 的 XIP 端口的配置及操作 3. XIP 端口扩展 ROM/RAM 应用 4. 数据加解密 5. 下载算法文件的制作
支持型号列表： AT32F435xx AT32F437xx
目录 简介........................................................................................................................10 时钟源....................................................................................................................10 函数接口表.............................................................................................................10 命令端口................................................................................................................12 协议说明.................................................................................................................12 数据传输.................................................................................................................12 CPU PIO 模式.............................................................................................................13 DMA 模式...................................................................................................................13 初始化流程.............................................................................................................13 模式切换（Switch to Command Port）......................................................................13 时钟分频配置（Clock Source Configuration） .......................................................13 SCLK 空闲模式配置（SCLKldle Mode Configuration）.........................................14 WIP 配置（WIPConfiguration）..............................................................................14 操作参数配置说明...................................................................................................14 performance enhance mode 配置..............................................................................15 instruction code 的配置..............................................................................................16 instruction length 配置................................................................................................17 address code 配置......................................................................................................17 address length 配置....................................................................................................18 data counter 配置.......................................................................................................18 second dummy state cycle 配置.................................................................................18 write data enable 配置................................................................................................20 operation mode 配置..................................................................................................20 read status 配置.........................................................................................................21 命令配置示例..........................................................................................................22 单一命令的方式..........................................................................................................22 命令+写数据的方式....................................................................................................23 命令+读数据的方式 ....................................................................................................24 命令+地址的方式........................................................................................................25 WIP 状态硬件自动轮询方式.......................................................................................26 WIP 状态软件手动轮询方式.......................................................................................27 命令+地址+读数据的方式...........................................................................................28 命令+地址+读数据（DMA）的方式............................................................................29 Read with PE mode 的方式........................................................................................30 命令+地址+写数据的方式...........................................................................................34 命令+地址+写数据（DMA）的方式............................................................................36 XIP（地址映像）端口 ............................................................................................38 说明........................................................................................................................38 映像地址.................................................................................................................38 初始化流程.............................................................................................................38 XIP 参数配置..........................................................................................................39 XIP-Read 参数配置....................................................................................................39 XIP-Write 参数配置.....................................................................................................39 效能参数配置..............................................................................................................40 XIP 扩展 ROM/RAM 应用...........................................................................................42 扩充 Memory 在 MDK 上.........................................................................................42 MDK 配置...................................................................................................................42 代码初始化配置 ..........................................................................................................43 扩充 Code 在 MDK 上.............................................................................................44 MDK 配置...................................................................................................................45 代码初始化配置..........................................................................................................46 数据加解密.............................................................................................................47 下载算法文件制作..................................................................................................48 制作 MDK 的 FLM 算法文件....................................................................................48 复制并修改工程名称...................................................................................................48 修改使用的器件..........................................................................................................48 修改算法文件的输出名称............................................................................................49 修改 User 选项............................................................................................................49 修改 C/C++选项...........................................................................................................50 修改 Asm 选项..............................................................................................................50 修改 Linker 选项........................................................................................................51 修改 FlashPrg.c 文件..................................................................................................53 修改 FlashDev.c 文件.................................................................................................56 加载使用算法文件.......................................................................................................57 制作 IAR 的 OUT 算法文件 .....................................................................................59 复制并修改工程名称...................................................................................................59 修改使用的器件..........................................................................................................59 修改算法文件的输出名称............................................................................................60 修改 qspi_algorithm.c 文件.........................................................................................61 加载使用算法文件.......................................................................................................64 效能评估................................................................................................................67 文档版本历史 .........................................................................................................68
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