*)0x60000000) = (uint16_t)0x5555;??_writeReg_0:0x2401'310c: 0xf245 0x5055MOVWR0, #21845
2022-12-21 06:11
我一直在尝试各种各样的事情来完成这项工作，但我什么也没找到。我试过CKE、CKP、SMP、主预分频器和次预分频器的所有可能的组合（字面意思：我编写代码来迭代所有可能的组合，重置编码器，并尝试从中读取一些值并通过USB CDC将它们吐出）。我试过使用循环，我试过使用中断。我已经尝试过3线只读和4线双向。我已经尝试了16位模式和8位模式。我已经尝试过声明SS，我已经尝试让SPI模块来处理它。我尝试使用“框架模式”，我试着把它关闭。在每一种情况下，我从编码器接收空值。不幸的是，我没有访问作用域的权限，但是我已经按照PIC24和编码器的数据表中的说明操作，并且尝试了来自整个网络的代码。这似乎不那么困难，但什么也不能奏效。我想在这里发布一些代码，但是我已经尝试了很多不同的变体，以至于我无法选择在这里发布的代表我努力的东西。谁能告诉我正确的方向吗？我有什么遗漏在这里吗？这看起来应该非常简单。 以上来自于百度翻译 以下为原文 I've been trying various things to get this working and I'm just not getting anywhere. I've tried every possible combination of CKE, CKP, SMP, primary prescaler, and secondary prescalar (literally: I wrote code to iterate through all possible combinations, reset the encoder, and try to read a few values from it and spit them out via USB CDC). I've tried using loops and I've tried using interrupts. I've tried 3-wire read only and 4-wire bidirectional. I've tried 16-bit mode and 8-bit mode. I've tried asserting SS myself and I've tried letting the SPI module take care of it. I've tried using "framed mode" and I've tried leaving it off. In every case, I receive empty values back from the encoder. Unfortunately, I don't have access to a scope but I've followed the instructions in the datasheets for the PIC24 and the encoder as well as trying code from all over the web. This doesn't seem like it should be that difficult but nothing works. I'd post some code here but I've tried so many different variations on it that I couldn't possibly pick something to post here that would be representative of my efforts. Could anyone point me in the right direction? Is there something I'm missing here? This seems like it should be very straightforward.
2019-07-30 10:20
在过去几年里，一系列新的终端市场和应用开始涌现，推动了对更高性能位置传感器的需求。这在磁性位置传感器 IC 领域尤为明显，此类传感器的供应商已经响应市场的急切呼唤，开始推出新产品，专为快速发展的机器人和无人机市场量身定制。新型磁性位置传感器更加智能，可提供更高的分辨率和精度，更小更轻，而且功耗远远低于其前代产品。本文将简述一下磁性位置传感器的历史，以及它们以往所服务的终端市场和服务方式，然后深入探讨当今新一代器件中引入的特殊的新功能和性能。最后，聚焦机器人和无人机领域，分享这些新式的创新型磁性位置传感器的几个用例。
2020-08-10 06:01
RK3399 HDMI接口的知识点汇总，绝对实用
2022-03-07 06:53
