[问答]

PIC32 DA系列MPU SDHC控制器没有文档

问答对人有帮助，内容完整，我也想知道答案 0 我刚买了一个带有PIC32 MZ2064 DAA228芯片和128MB DDR的启动套件。这是很好的是有一个微型SD连接器在板上，该芯片有一个专用的SDHC控制器。我下载了数据表和外设上的所有部分。SDHC的部分具有通常列出的非常简短的解释所列出的所有控制寄存器。但是，在57.3模块操作中，它所做的一切都是指SD卡规范（当我在MEBII工作时得到SD卡时，我已经阅读过它们）。没有关于如何发送命令、读写块等的解释或示例代码！这有什么样的代码吗？他们通常有样本代码和更详细的解释大多数功能，但没有什么。我不使用和声，所以如果有一些东西不使用PLIB函数，但是如果有的话，我可以适应它。以上来自于百度翻译以下为原文 I just bought a starter kit with a PIC32MZ2064DAA288 chip and 128MB DDR. It's nice that is has a Micro SD connector right on the board and that the chip has a dedicated SDHC controller. I downloaded the data sheet and all the sections on the peripherals. The section for the SDHC has all the control registers listed with the usual very brief explanations. But, in 57.3 Module Operation, all it does is refer you to the SD Card specifications (I already read through them when I got the SD card on the MEB II working). There are NO explanations or sample code for how to send commands, read or write blocks, etc.!! Is there any sample code for this? They usually have sample code and more detailed explanations for most functions, but there's nothing for this. I don't use HARMony, so if there's something that doesn't use the plib functions, but if does, I can adapt it. Thanks in advance! 0
2019-1-10 15:32:17　　评论淘帖0 邀请回答您可以邀请以下用户，快速回答问题 × qun333 该类别下有 57 个回答。邀请回答技术发广告该类别下有 56 个回答。邀请回答 caoguiqun 该类别下有 56 个回答。邀请回答 psw30 该类别下有 44 个回答。邀请回答伊丹姿子该类别下有 41 个回答。邀请回答 uwufwjrw 该类别下有 39 个回答。邀请回答 hetao1111 该类别下有 38 个回答。邀请回答 lc123617 该类别下有 35 个回答。邀请回答欧阳大大该类别下有 32 个回答。邀请回答作死不止该类别下有 31 个回答。邀请回答 asd010 该类别下有 31 个回答。邀请回答 60user92 该类别下有 29 个回答。邀请回答 wy8719 该类别下有 29 个回答。邀请回答 haikitty 该类别下有 28 个回答。邀请回答 ju978779 该类别下有 28 个回答。邀请回答嘻嘻爱哈哈该类别下有 28 个回答。邀请回答 xiuzhen122 该类别下有 27 个回答。邀请回答 pol666 该类别下有 27 个回答。邀请回答 ueywyrsdfs 该类别下有 26 个回答。邀请回答 lhly23 该类别下有 25 个回答。邀请回答举报汤敏树相关推荐 • 怎么把设计移到PIC32设备？ 1632 • 有人有PIC32MZ DA SDHC控制器的工作代码吗？ 1242 • PIC32 MZ DA启动工具包有文件系统访问的例子吗？ 901 • 为什么所有PIC32 MZ微控制器都是禁止进口的？ 1716 • 如何使用PIC32 ESK2和LCC套件？ 1053 • 如何使用ICD3调试器调试PIC32 USB STARTER KIT II 1659 • SD卡与控制器接口的容量取决于哪些参数？ 1742 • PIC32是否使用Eithernet引脚使用内部生成的中断？ 1803 • PIC32 MZ的EBI/DMA/PMP是否需要使用和声？ 1411 • SDHC存储在响应寄存器中的数据似乎不正确 1042 2个回答

答案对人有帮助，有参考价值 0 主机控制器规范的第3部分描述了如何实现功能的流程图。由于外设应该遵循规范，可能有可以在网络上可用的驱动代码的例子，可以作为起始点。以上来自于百度翻译以下为原文 Section 3 of the host controller specification has flow charts explaining how to implement functionality. Since the peripheral is supposed to follow the spec, there's probably examples of driver code available on the net that can be used as starting point.

2019-1-10 15:49:19 评论举报唐红菊

答案对人有帮助，有参考价值 0 所以，我读了主机控制器规格，它确实提供了很多有用的信息，但是有一些东西在PIC32 MZ DA上具体实现，这在规范中没有解释，应该在PIC32 DA手册的第57节中解释，但不是。我还创建了一个HAR。MUNY项目使用SDHC控制器，并查看了代码，但很少或没有文档说明为什么它做某些事情，它的做事方式不同于说明书中所描述的。我编写了一些代码，复制了和声所做的事情，删去了许多复杂的问题。F和谐的代码。由于卡插入、删除和命令完成，我被中断，但是从来没有任何错误中断和零（零）响应。由于PIC32 DA启动套件占地面积小，我无法检查卡上的任何信号。是否有SDHC控制器的工作样例代码？以上来自于百度翻译以下为原文 So, I read through the Host Controller Spec and it did give a lot of useful information, but there are things that are specific to the implementation on the PIC32MZ DA that aren't explained in the spec and should be explained in Section 57 of the PIC32 DA manual, but aren't. I've also created a Harmony project using the SDHC controller and have looked at the code, but there's little or no documentation of why it does certain things and its way of doing things is different than described in the spec. I wrote some code that copies what Harmony does, cutting out a lot of the over-complication of Harmony's code. I am getting interrupts from it for card insertion, removal and command complete, but never any error interrupts and nothing (zeroes) for responses. Because of the small footprint of the PIC32 DA Starter Kit, I can't check any signals to/from the card. Does anyone have any working sample code for the SDHC controller?

2019-1-10 15:58:18 评论举报林霆景