嗨，我有一个简单的分段显示（8个SEG和4个公共），并且已经理解了语法和初始化可以用代码驱动分段显示。我从来没有用分段显示来实际构建一个设备UI……是否有人在你需要UPDDA的时间上有什么指针？为人眼展示屏幕？什么是时间方面的策略？我已经准备好如何展示显示角色的功能，但是很难掌握时间。任何帮助，都要感谢有人使用分段显示之前建造的东西。谢谢！ 以上来自于百度翻译 以下为原文 Hi, I've got a simple segmented display (8 segs, and 4 commons) and have figured out the syntax and initilization can drive the segmented display in code. I've never actually built a device UI using a segmented display.... Does anyone have any pointers on the timing for how quickly you need to be updating the screen for the human eye?What is the strategy in terms of timing? I'm already noodling how to built out the functions to display the characters, but having a hard time grasping the timing. Any help, is much appreciated from someone who has built something using a segmented display before. Thanks!
2019-04-04 14:53
我们有一个使用PIC18F46J50设备的产品，我们最近制造了另一批产品。不幸的是，新的批必须被编程，我们无法找到正确的文件加载到设备上，并且负责人不再与公司在一起。我们有MPLAB X IDE V4.15，并且我们能够从工作设备读取（上载）设备存储器，并对新设备进行编程。生成的文件。然而，新设备并没有像预期的那样工作。问题是，从一个旧设备读到一个新设备是一个可靠的做法吗？否则，我们必须假设新批产品可能装配错了。当然，同时，我们正在努力理解设备编程，但我们急于让产品尽快工作。谢谢。 以上来自于百度翻译 以下为原文 We have a product using the PIC18F46J50 device and we recently fabricated another batch of the product. Unfortunately the new batch must be programmed, and we cannot find the correct file to load onto the device, and the person responsible is no longer with the company.We have MPLAB X IDE v4.15 and we were able to read (upload) the device memory from a working device and program the new devices with the resulting file. However, the new devices are not working as expected. The question is; is reading from an old device and writing to a new one a reliable practice? Otherwise we must assume that the new batch of product may have beenassembled incorrectly.Of course, in the meantime, we are struggling to understand the device programming, but we are anxious to get the product working ASAP.Thank you
2018-09-11 14:53
嗨，我可以从intel realsense viewer中获取彩色图像和深度。但有三个问题：首先，.bag文件包含彩色图像和深度图像，但它们的数字不匹配。为什么？第二，我想将深度图像转换为pointcloud，是否有程序？thrid，在查看器中，摄像机的帧速率仅为30.这在观看者中无法更改。怎么处理呢？谢谢 ，最好的祝福，Nevyn以上来自于谷歌翻译以下为原文Hi， I can obtain the color image and depth from intel realsense viewer. but there are three questions about it： first, the .bag file contains color images and depth images,but their numbers don't match.why?second,I want to convert the depth image to pointcloud,is there a program?thrid,In the viewer, the frame rate of the camera is only 30. This cannot be changed in the viewer. How todeal with it? thank you ,Best Regards, Nevyn
2018-10-31 12:56
我正在设计一个电池管理系统（BMS），它可能需要监视四个12V的SLA电池，总电压高达56 VDC，并且我需要向电路提供5个VDC，这将使用PIC和其他可以吸引多达5毫安的组件。我想把电池组的电流降到小于1毫安。所以我想使用降压开关稳压器。我已经模拟了使用PIC12F1822（或其他设备）驱动的P沟道MOSFET的设计，但是我需要制作一个5V的稳压器来提供它的功率在56伏包的高端。我用两个白色LED和249K电阻器构建了一个电路，它提供5.13伏直流电压和40V输入（140 UA），但是PIC就位，电压下降到大约2.35 VDC，这不足以驱动PMOS晶体管。PIC12F1822应该只画出30-60uA，内部时钟为32千赫。一个空白（擦除）设备默认为外部HS时钟，但我认为它将绘制没有时钟的最小电流。所以我想知道如果我把它编程为一个500千赫的MFiToSc，它在5 VDC上只画280个UA（大约与3V的L版本相同）。我计划使用25 kHz或更小的PWM，但我需要的占空比（根据模拟）是500毫秒，这将需要更高的时钟速率。在4 MHz的HFIFToC通常绘制700 UA。我不知道使用两个白色LED的并联调节器是否足够用于此目的。我想出了另一个选择，应该持有约4.3 VDC。这里是电路：[图像拒绝访问]：（i）可以在突发模式下运行Boost转换器，为BMS电路充电大电容，然后关闭Boost转换器，并在睡眠模式下运行BMS，并每秒唤醒一次，以节省功率。有没有其他设计方案？谢谢！ 以上来自于百度翻译 以下为原文 I am designing a battery management system (BMS) that may need to monitor four 12V SLA batteries with a total voltage as high as 56 VDC, and I need to provide 5 VDC to the circuitry, which will use a PIC and other components that may draw as much as 5 mA. I want to minimize the current draw from the battery pack to less than 1 mA. So I want to use a buck switching regulator. I have simulated a design that uses a P channel MOSFET driven by a PIC12F1822 (or other device), but I need to make a 5V regulator to supply its power on the high side of the 56 volt pack. I built a circuit using two white LEDs and a 249k resistor, which provides 5.13 VDC with 40V input (140 uA), but with the PIC in place the voltage drops to about 2.35 VDC, which is not enough to drive the PMOS transistor. The PIC12F1822 is supposed to draw only 30-60 uA with a 32 kHz internal clock. A blank (erased) device defaults to an external HS clock, but I thought it would draw minimal current without a clock. So I wonder if it will draw less current if I program it for a MFINTOSC of 500 kHz where it should draw only 280 uA at 5 VDC (about the same as the L version at 3V). I plan to use PWM of 25 kHz or less, but the duty cycle I need (according to the simulation) is 500 nSec, which would require a higher clock rate. The HFINTOSC at 4 MHz draws typically 700 uA. I don't know if a shunt regulator using two white LEDs is sufficient for this purpose. I came up with another option that should hold about 4.3 VDC. Here is the circuit: [Access denied for image :( ] I might be able to run the boost converter in burst mode to charge a large capacitor for the BMS circuit, and then shut down the boost converter and run the BMS in sleep mode and wake up every second or so to save power. Any ideas for alternate designs? Thanks!
2018-11-09 15:30
