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125 Threads found on edaboard.com: Hardware Problems
You are asking about Verilog hardware description language. A clock edge sensitive always block describes e.g. a flip-flop in hardware. So your question can be translated like "can we (or better should we) use a flip-flop clock input for key press detection". Basically you can, but the idea involves some problems like key bounce. A key (...)
I see that push button interrupt processing can be meaningful if the processor needs wake up from power saving state. For processors in regular operation it's useless and should be replaced by polling the button in a timer interrupt which also solves all debounce problems. Most processors don't need hardware debouncing at all, even strange inter
With the information give, my choice would be I2C. SPI can be made to work in a multi-master bus configuration but it can be quite hard to detect collisions. For UARTs you can have problems with collisions and you often need to use a 9-bit word to include an address flag so that you know when to turn on your Tx line. I'm not sure what you mean by v
I'm programming a PIC16F88 using an ext 8mhz oscillator connected to OSCI pin and I'm able to debug and program the chip thru MPLAB v8.9 and Hitech PRO v9.83. So there are no hardware problems in my target board. BUT I'm doing this because I've never been able to debug it using it's internal clock programmed at the same freq. (8mhz) Everythin
It's probably a layout and/or grounding problem, but without seeing your hardware it's impossible to tell.
What websites/magazines should people that do digital hardware design using FPGAs (or ASICs) read to remain upto date with what is happening in this field and get ideas to solve various problems?
Well don't expect your "program" to be synthesizable, it's not written to describe hardware. I suspect that is at the root of your problems. e.g. don't use variables (unless you actually understand how they can be used in synthesizable code), don't use while loops (they can't be synthesized)
Hello I am working on inverter. I have some problems going with it. Here is the code I am using. I am giving pulses from an ATMEGA162 Micro controller. I am working on hardware. Final hardware will be driven by another series of micro controller. So I am not very good with this code. I am applying +DC Bus of 30V (...)
Hi I'm working on a project with the waferstar gsm relay and I've run into a few problems with this hardware. First i tried programming through the sms commands and now when the relay is activated the actuator we are trying to throw will activate randomly afterwards infinitley until we disconnect power. I tried connecting to PC to check what lines
Will SPI need any program written in flash memory of MCU's so to transfer new program into flash memory ,or it works using hardware of MCU automatically ?
Sounds like a design without necessary timing constraints that is working by chance. Or specific hardware problems like unstable design clock, insufficient supply bypassing, unstable voltage regulators, too much simultaneous switching noise, possibly PLLs losing lock, many possible problems, unfortunately.
Hi, Please specify "the value is changing". +/- 1LSB one can not avoid. With a 10bit ADC it should be stable within this range. If the change is more than that, then there are a lot of possible problems. Ranging from software problems, setup problems, hardware problems.... To give you better assistance (...)
So what u get? Do you use any sim tools for analytics? details details... of course 1010(+) 0101= 1111 try other inputs what , how is it defined in software? hardware? Generated?
Please understand the theory(or logic,hardware) behind these individual blocks and write the code yourself. These are pretty simple blocks. In case you face problems, we can then help you out.
Sir can i ask a question, can i use two I2C in pic16f877a?, i mean the soft and hardware I2C. Because in my thesis i need to have to I2C one for RTC and 1 for External EEPROM..
You'll think about suitable debugging means for your problem. hardware means: - an oscilloscope to monitor the Rx and Tx data - an UART spy adapter that taps Rx and Tx data and send it to a PC, at best two RS232 channels and Docklight software Software means: - AVR in system debugger Regarding possible baudrate problems. The usual way is to
Hi All, I have sim900 modem and it work. but when netlight doesnt work, my modem hang and doesnt work again, I must use reset hardware to make it work again. please hlep
the problem is that I'm not able to scan all 32 bits, but only the first It's already been explained that it is because you are trying to do the scan as if it was a software program. VHDL is not a programming language it is a hardware description language. Your combinational for loop doesn't represent any
Hi all, Felicity '14, brings brings to you one of it's kind, Online VHDL Coding, Kode Da Circuit. In this contest, participants have to come up with hardware solution for given problems which will be simulated using VHDL. This is a 24 hour event. The online judge will be using GHDL( ) to simulate the VHDL codes. problems wi
to simulaye on priteus you first have to verify that all the devices you need ARE simulated in proteus (not just in the library but also emulated ...) and then I had problems with interrupts. proteus simulated the whole thing right, but hardware was not responding at all. when doing the same program without interrupts, everything worked like a char