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29 Threads found on edaboard.com: rs232 Vhdl
I want to implement rs232 receiver in vhdl with FPGA Altera DE1. I have try to write some code but I know that is not good, my main problem is that I dont know how to get an indictaion that new data(serial data) is actually what I did is to move each bit of the serial data to the out parallel data (8 bits) every rising edge of the main
I need to develop UART transmitter in vhdl(FPGA to PC through rs232). I have the following code in verilog. Can anyone please provide the corresponding vhdl code or any other code for implementing the desired one. module transmitter1(clk,reset,transmit,data,TxD); input clk,reset,transmit; input data; output TxD; reg
Hi I am facing a unusual problem when implementing a rs232 transmitter problem. I have written a vhdl script which includes a UART component form Digilent. Problem is that logically my program should send the letter 'A' then 'B' then 'C' and then 'D' and the process should repeat. But upon programming the Chip with bit file, the program transmit on
Hi.I am so sorry because of my poor English speaking! I am trying to write a simple code in vhdl for rs232 to receive data through a wire as you know.here is my code! something is wrong! please help me to solve this challenge!thanks :) 99316 as you can see,bit_cnt pulsed twice!!!!!why? and number of "get" state must
hello everybody, I?m trying to understand how is working the rs232 controller, and I thing I have understood nearly everything, the only thing I can?t understand properly is how calculate the oversampling value to get the data, I mean the baud rate. I?m working with the digilent?s code rs232RefComp.vhd (
hello, I want to make rs232 serial interface of fpga with pc. i need a vhdl code for this. also i want to know how to assign the pins in the fpga for this? I am using xillinx spartan 3 kit. thank you.
Hi everyone! I am very new in vhdl and I need some help with the asignment I have to do. I want to send a character with hyper terminal to Spartan 3E board via rs232 and show its ASCII code on 8 LEDs. I have already implemented UART Receiver but now I don't know what else should I do. Do I have to make a new FSM to turn on the LEDs according
Hi all, I need to implement an uart module written in vhdl to comunicate with another module, I have tried to use this code (source) with this main: library ieee; use ieee.std_logic_1164.all; use
I have a problem with rs232 transmission. It doesn't work even when i send the first, start frame($55). Next frame $3x choses a led and the last one turns it on/off. I cant even turn on a led when i get start frame. I cant find any mistakes in a code. Maybe You will find something or give some advice. I enclose code with a problematic part. [COD
some issues are apparent: 1.) rs232 is lsb first, so "z" will come up as 0 0101 1110 1. 2.) you appear to transmit "M" lsb first (correct), but the start/stop bits are swapped (incorrect). eg, x1(0) = '1' and x1(9) = '0'. Thus the framing will be incorrect. the receiver may see 11001001 as the data byte, which would be an extended ascii charac
Hello, I am using my FPGA(virtex-6) kit for the project, project is rs232 to Ethernet converter, 1) i ll write a code for the rs232/434 and dump my code in FPGA then i need to transfer the data by Ethernet to other device or PC. 2) vice versa the data which is coming from the PC or device from the ethernet port need to be stored in the rs23
Please look at opencores.org. They have rs232 as well as ethernet mac core.
We are trying to do some homework making a rs232 transmitter... This is what we made so far and there is a lot of faults it it.. but we don't know what. We think its something with the way we written the states. Please rewrite it to some useful syntax this is what we made so far library IEEE; use IEEE.STD_LOGIC_1164.ALL; us
hello everyone, i had written uart receiver module and baud generator module for baudrate:9600 bps in vhdl. This code is working properly for all 1 digit values. Now i want to send a text file containing datas such as eg: 123 56 234 175 34 100 how do i send this through rs232 to fpga??? Thank you all in advance..........
Not quite sure what the problem is, but since you mention rs232 ... Check out this uart module on fpga4fun. It's explained pretty well, and more importantly, it actually worked the first time around! Just change clock frequency and baud rate parameters and you are good to go! good luck!
hi all, i need for a project to decode characters sent to rs232 Receiver module the RS 232 receiver will feed its data to the LCD display and that will be on spartan 3A . i have the rs232 Receiver module done but what i am missing is the part related to the LCD display as i want one and i hope it is in vhdl and not relying on (...)
I want to check status of DIP switch conecting rs 232(DCE) in xilinx edk 11.1, what will be my source code? pls help
Hi, here is a good thread for it.. rs232 vhdl-core | Comp.Arch.FPGA | maybe interesting.. i used it to do a part of my own UART
I am trying to send a command followed by a set of data through the serial comm. E.g. The application from the PC writes char "S1000E" to the serial. The FPGA UART receives this as "S" "1" "0" "0" "0" "E" (I have it write back to HyperTerminal). In ASCII, "1" = 31(hex) or 49(dec) or 11001(bin). The question is... how do I store the value 1000(d
Hi, im really new to this project and i dont know where to start. All i know is that i could use the hyperterminal for me to send data towards the FPGA... but i dont know how to do it... also the hardware stuff for the connection between the PC and FPGA... what i want is to make a simple project that sends data only towards the FPGA so that i could