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Hi, just thought I'd add my $0.02 :) I've used manchester (similar to biphase) coding in a PIC16F818 to test the BER of an RF link. I did it by splitting my input byte into two 4-bit nibbles, and used a LUT of 16 entries (1 for every possible 4-bit combination). I think its only used a total of 10 lines of code, plus the LUT. Pseudocode: M
s_tfcell veriusertfs = { {usertask, 0, 0, 0, counter_monitor, 0, "$counter_monitor" }, {0} // last entry must be 0 }; Does you c head file have the pli function struct like above ? you should add you function to the head file.
I wrote a simple c program #include "./veriuser.h" #include "acc_user.h" #include "stdio.h" #include "stdlib.h" #include "time.h" int myrandom() { time_t *nowtime; time(nowtime); srand((*nowtime)); printf("the time is %d\nthe random is %d\n", (*nowtime), rand()%128); } s_tfcell veriusertfs = { {usertask, 0, 0, 0, myrandom, 0,
Hi, Danda821: 1. On IE3D 11.20, there is an information at the bottom. If you don't see it, please check it in VIEW->INFORMATION BAR. On the Geometry tab of Information bar, you can check an edge's information by pointing the mouse to an edge, or a polygon's information by pointing the mouse to a polygon. 2. If you want to measure the distan
Hi, Chest: There are 2 ways: 1. If you want to know the distance between 2 vertices or linking a series of vertices, you can just enter the vertices snapped to these vertices as if you are entering a polygon. Then, select INPUT->INFO ON last entry to see the information. You can find the total path length and the absolute and relative locatio
Hi all, As a fresh VLSI design engineer..I am finding it very difficult in getting calls for entry level positons from companies..People say that usually guys are called for written tests only through referrals!! After applying for the last 2-3 months I am also feeling the same..Guys from india can help me in getting me some referals for
Hi, From the link you provided, its full of feedback from users who have built the unit, last entry Dec 2009 so think you would be better posting there. The pics adc input can only handle 0 - 5v dc and needs a suitable network for other voltages. Resistor R3 is 5 ohm for the backlight . It seems to be a neat little project but be aware
Ok, it is true we can't search inside FIFO. But in order to find out the 2 identical entries in FIFO, we have to read out the entire content of the FIFO before we do the search. Let's say the first entry and the last entry are the identical pair we are looking for. It is obvious that we have to buffer all the entries. If the question (...)
CST Studio error: The history list is not positioned at the very last entry. In this case, no parametric structure editing is possible. Please complete the structure update before editing shapes. I don't know what is the problem, anyone could show me the error? Thanks in advance.
Hi, I was not so much refering you to that posts project, but more the last entry advising how you can get started coding for yourself. You start off with the proverbial flashing led and build up your experience with the goal of making your thermometer and voltmeter work. You will find some ready made code for the ds18b20 sensor in this or
Now it should be fine. I'm not sure why it wasn't shown as moderated anywhere apart from small icon next to the post. I also don't understand why it was visible, a moderated post is invisible until it is approved. - - - Updated - - - can you put the link here ? Check the blogs link, it
Hello, I have a question regarding the DRC warnings I have been getting. I get the following warnings for the same pin - "Two nets in same schematic have the same name, but there is no off-page connector 3.3_dma_to_mem_data4" "Net has no driving source 3.3_dma_to_mem_data4" "Net has fewer than two connections 3.3_dma_to_mem_data4" X2
Hi, Yes you can do it with Assembly and you can use your Pk2 Usart Tool to act as the PC terminal. You first have to know what frequency crystal you are using the the 877A, this is because the Usart has to be set up based on that. You can learn how to use the Usart in this tutorial , the last entry 7.7 is based on the 876/877A chip so it s
I think the most VHDL-Tools runs under Linux! In the history the VHDL tools are Designed for Unix, in the last years mor developer of VHDL Software are switching to the windows platform. Mostly you can download from the developer homepage a windows also a unix / Linux Version of the Software! For what tools are you looking?? Then I can say you wh
I would not count on a fix very soon. I think protel have completely lost the sense of direction. To spend so much development time on design entry & capture is nuts :P when they have so many other things broken. The DXP tool could have been so much more for the PCB design market, now it seems they have looked at design capture market f
The critical details you're missing is the flash memory address space decoder circuit. It's most likely a PAL/GAL type device that logically AND's the higher order STi5500 address lines to create the OE# signal (and possilbly others signals too). These extra circuits are shown only on the Pansat 300A schematics. From the STi datasheet: 8
Hi, I am currently working on a software+hardware laboratory for electrical engineering undergraduate students in our university. Students know a little C and Matlab on entry level (C is a core course but i dont think they pay enough attention and Matlab is given by seminaries (by me!)). We have 10 TI TMS320F2812 32 bit fixed point DSPs for use
PCB design means schematic entry, assigning part properties etc. Layout has to do with placement, routing and other issues such as gnd ans power planes, high speed design, signal integrity etc. The last one of cource can be another specializer area. I feel you should know and be aware of both and specialize in any one. This will automatically
Hi.. I am learning interfacing a LCD with uC. I could successfully display characters on the LCD. I have set the cursor shift left command to give an impression of a scrolling text. But the problem is whenever the length of my string becomes more than 24 characters, the next character automatically starts being displayed on line 2 (I am using a 1
Hi, this may not help much, but have you thought about capacitors? I mean the 1-5F ones. Their capacity rivals that of batteries, but you can charge them very quickly. Memory backup caps are cheap now, and last for about 3 years from full charge. Hope this helps. The cap in the link is
Regarding COSMOS SE what means dead end tool? I did not see any new schematic entry development the last 12 years! What dead ends should mean? Are all entry tools are dead ends? I found ECS or SCS or Laker AMS most useful because it allows grid based entry with all features for EDA and can export in vector MS (...)
Here's an extremely simple, lightning fast, multitasking kernel that will run up to four threads. This can be used as a foundation for a real-time os. ; EXEC is the kernel entry for tasks. The kernel assumes exclusive use ; of registers R6 and R7 in each task register bank. Up to 4 tasks are ; supported by the kernel, as the 8051 has
I got master dgree,but I switched to IC layout industry for somereason, I am about to graduate in this month from a very famous IC Mask design school and I am top 3 student in the class. I started job hunting from last month, but realized that no company post their such kind of entry level job online or in newspapers. I am a little bit discourag
Hi all, As a fresh VLSI design engineer..I am finding it very difficult in getting calls for entry level positons from companies..People say that usually guys are called for written tests only through referrals!! After applying for the last 2-3 months I am also feeling the same.Help me in getting me some referals for entry level positions (...)
Hi all, I am currently developing a comprehensive RF/mixed signal layout course, mainly targeting either entry level layout engineers or people who could use a refresher course. I would love to get some feedback from you - do you think this would be useful, what contents would you like to see in such a course? Very briefly, for the last 6 yea
I and my team members are using Orcad CIS and Layout for last 4 years. Currently we are using Orcad 16. After coming to know the features of Alegro for High Speed Design we are planning to buy the complete suite of Allegro. Migrating from Orcad to Allegro will we need to learn a lots to use the Allegro or is the Allegro is more sim
Consider a file currently consisting of 60 data blocks. Assume that the file ‘() directory entry file control block (and the index block, in the case of indexed allocation) are already in memory. Calculate how many disk I/O operations are required for contiguous, linked, and indexed (single level) allocation strategies. If, for one block, the
Mario, I sent you a private message - I hope you received it. I think there are probably a few cheap entry level PCB packages which may be a struggle to use for professional PCBs. Once you get away from those I think most are perfectly capable. Then, as you spend more money I feel packages start to get a bit bloated and unwieldy. Their facil
dear gulson......... points and helpful vote also do not update properly on last day of month
If u are using spectre as simualtor, then u can find capacitance at DC and transisent. Capacitor is open to DC -- capacitor cannot pass a DC signal however u can still charge a capacitor using a DC signal. capacitance is ability to hold charge. CapTab in Transient in Spectre . choose tran analysis -> options -> click on
Maybe everyone is going loopy then Marce :grin: The last thing I usually worry about is the number of test points, you only pay for a test fixture the once. It's not as if the text costs any more the higher the pin count. In fact - many modern tests are flying probe -then there are only 2 pins.
For each individual entry: Did you calculate all intermediate partial values in double precision? And store them as double precision partial values? Then as the last step, truncate the final result to single precision before entering it in your lookup table? (Good) Or did you store intermediate partial values as single precision, while calculatin
I would suggest PIR modules, the kind that come with a plastic fresnel dome. Very easy to wireup, and the output goes active when the module sees motion. They also come with a small trimmer for a built-in adjustable timer that keeps the output active for a delay *after the last sensed movement*. This way, you dont have to actually the monitor the d
Is this the last version to be developed. Mentor has stopped advertising Pads in the trade magazines and removed its List-Server.
i see, so we can combine till the last bit that will be same? for example, B <= "00000000" when a = 1 until 18 B <= "00000000" when b = 19 until 24 can we do the same like before?
Make some door entry system with fingerprint reader device, and SMS sending data about each bad attempt to enter, also like data of users which enter inside (like first and last name, date and time of event).
Do you have the "end of line" sequence (hex 0a for unix/linux, hex 0d 0a for Windows) after the second number? Some editors allow you to create files with "end of line" missing from the last line. Unix/linux editor "vi" does not allow that.
Hello I'm using Design entry HDL (last version) and I would want to publish the schematic in pdf file. all my schematic and text are in CONCEPT font. When I publish to pdf format the font changes to courrier. Do you know how I can change this ? thanks
Dear forum members, I am new to the forum and what is worse, the last time I saw physics was at the 8th grade.. I work for a research agency and we would like to measure a distance (ranging from 2-300 meters) of a reciever from three distinct points (at best several recievers and 3 stable beacons simultaneously) and collect the data to a comp
is this just for memory allocation? If so, you might just want to keep a fifo-ish structure. This can be somewhat parallelized (dual port, and wider ports) to get the operation down to just a few operations. you can also fill the ram, placing 0 entries at min to N-1, and placing 1 entries at max downto N. You can set it up to read 28b from ram