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32 Threads found on edaboard.com: Connection Delay
hi frnds, i need to write a vhdl code for a delay between two consecutive pulses used to close switches so as to provide connection... given that the first pulse is at t0= 0sec and t1= 600 microsecond. The first pulse is used for closing first two switches and next pulse(after a delay) for the further two switches.... Kindl
This circuit shows the operation from 5 V, but you should be able to operate it from 3.3 V. Point VF1 will be the connection to the chip open drain connection. So input from VF1 is locked out until VF4 goes low. Time is set by the RC time constant. After the initial delay, the fault signal will appear on VF5 when generated.
Hi, To get spef you need following inputs, 1) complete DEF (logic with connection) 2) You dont use just (is has only cell delays) as this is routed design you use technology file to get real data values of metal and vias aloang with fanout and actual routing delay. 3) RC corners with PVT conditions. 4)Input from STA (timing input) These ar
I did this before.. still not working. Does hyper terminal support USB-RS 232 communication ? - - - Updated - - - I tried two other software, teraterm and putty. Both says that "unable to open port connection". So it means there is some connection problem. Where do I need to do settings, in code or in seria
Hi I am interfacing SIM300 with my silab microcontroller. I am facing the following issue: 1. If my controller is working and I reset my SIM300 module, I am not able to get response from SIM300. I have to physically disconnect my rs-232 cable and then plug it to make it work. However if my sim300 module is working and I reset my controller ca
The images are too big for me to download on my Internet connection but do you realize the LCD is upside down! The connection pads should be at the top. I'm guessing you have the wiring correct or you would see nothing at all. Brian.
Hi, delay may be the problem ..please verify your hardware connection once again.. void lcd_data(unsigned char disp) //Lcd data function { lcd_data_pin=disp; en=1; rs=1; rw=0; delay(5); en=0; } Try these code.. #include //Define 8051 Registers #include //Define I/O Functions //#define DATA P0
This is my example: 93037 See the connections!!! Code in CCS of Main.c #include<16f877a.h> #use delay(clock=4000000) #fuses HS,NOWDT,NOPROTECT,NOLVP #use rs232(baud=9600,xmit=PIN_C6,rcv=PIN_C7,parity=N,bits=8,ERRORS) #define LCD_ENABLE_PIN PIN_C0 #define LCD_RS_PIN PIN_C1 #define LCD_RW_PIN PIN_C2
You are describing pin 15 and pin 16, hope you have connected the data and control pins as well. Without these connection and some timing and delay manipulation you cant expect any thing on display. It would have been nice if you could have attached the circuit schematic so that experts could come up with to the point solution.
Hi. I mistakenly connected wrong pins on a ckt that had more than two MCU the pins were both outputs. that did not damage the MCU's but it caused an unexpected delay or the MCU work on a very low speed. do I have to replece the MCU or reprogram it?
Hi In your Program u need to provide some delay, for the micro controller execution time will depend on the crystal frequency. and in this simulation u have used the pwm (CCP1,CCp2), but there is no initialization for the duty cycles.. so if u are using this pwm means u need to initial ccp mod orelse remove the connection, i think this will work f
Hi, I have a simple connection between points A and B. Lets say it has some delay 'd' due to wire resistance. Now, can we put a buffer between A and B such that the delay can be reduced. Thanks, Beo
The edaboard database had to be restored after quite a few extra questions and answers here, so I'm going to summarise what I said in them all from my memory. I've no idea how the youtube project works without melting something. If the LED's really are standard LED's, with no resistors and a 5V supply, then both t
1. What type of LCD you are using? 2. Mainly 2 types of connection are popular i)8 wire ii) 4 wire 3. There are 2 ways to send commands/data to LCD. --(a) Call a time delay before sending next data/command to an LCD (b) To monitor the busy flag before issuing a command / data to the LCD. Search Edaboard. Its full of LCD routine. Assuming yo
1. During IR drop Vdd becomes lower. (IR) 2. Different areas of IC have little different Vdd becuase of limitation on power rails connection. (delta Vdd) 3. On the other hand during fabrication Vth of some MOS can be higher. (delta Vth) So logic Hi can be treated as Logic Low if: Vdd - IR - delta(Vth) - delta(Vdd) < Vth.[/Q
hi I want to make a connection with CAN between 2 LPC2368s. I used these codes: #include "config.h" #include "lcd.h" #include unsigned int i=0,delay=0; unsigned int d=0; #pragma vector=0x1c __fiq __arm void can (void) { lcdwrite('o'); lcdwrite('k'); CAN1CMR =0x00000004; //Release Receive Buffer } voi
this problem had me going crazy for a weeks already.. i assemble my circuit on a breadboard,using 4Mhz(24pF),20Mhz(33pF) and each time i power on the circuit,the led wont blink.For the setting with 4Mhz oscillator,the led will blink very fast and for the setting with 20Mhz,i had to touch or wiggle the capacitor to make the circuit works but still,
myb it some like unwanted connection or it not connected...
I don't think that you enter the first process. what other devices are connected to the same connection? are you using a router? Does your PC receive the data when you are using the delay? Have you established the connection between FPGA and PC? Is the header (use Wireshark to check this) correct? these are just some basic things to check (...)
in VoIP networks, there is a connection between the delay and voice Quality (MOS) where can i find some explanation about this (including graph of MOS vs delay) the codec is G.711