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Recent content by dadda007

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    RS-232 interfacing with FPGA

    Thanks for the reply , I tried out the following code but with little outcome .... library IEEE; use IEEE.STD_LOGIC_1164.all; --Header file declaration entity rs232_lport is port( data : in BIT; -- Input RS-232 serial data clk_rs232 : in STD_LOGIC; -- Latching clock baudrate ...
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    RS-232 interfacing with FPGA

    related:www.edn.com/article/ca47273.html I have written a code to take in serial data from a RS-232 link and store it in a register. I intend to generate 2 signals , one signal ack1 which goes high after a valid start bit has been obtained and another signal ack2 after all the 8 data bits have...
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    Geneating a clock pulse at an external trigger signal

    external trigger vhdl I have been trying to develop a hardware model for generating a clock pulse of 1 micro-seconds duration at the ocurance of a trigger signal. I have 2 input signals one , the clock signal and another one is the trigger signal. The output signal is the 1 micro-second pulse...
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    Removing USART errors

    Dear frnds, I am working on a project making use of USART module of ATmega32. I am sending certain AT commands from my MCU to a GSM kit and simultaneously observing the output on hyper terminal , however i notice that my program gets stuck while executing certain loops ... I suspect some...
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    Interfacing Atmega 32 with GSM Mobile

    atmega sms Hi all, I am facing difficulty decoding an SMS from GSM with my micro-controller. After sending the appropriate AT commands i am trying to decode the PDU mode format of the SMS. In the following code i am reading the seventh location in the GSM mobile memory set and decoding the PDU...
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    Terse mode response of AT+CNMI

    AT+CNMI gives response +CMTI followed by the memory location where the new SMS is stored in the mobile equipment memory. But what will be it's response in terse mode ?? Speaking straight i intend to send AT+CNMI from my Atmega32 to a GSM mobile equipment and wait till i get a response from the...
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    Steps fpr interfacing PC with Atmega32

    How should we wire the RTS, CTS, DTR, DSR, RI, DCD pins of the RS-232 cable connected to the Atmega32 , so as to send data to the PC. Upon powering up the Atmega32 i expect a stream of data flow to begin , which will be displayed on the Hyper-terminal of the PC. PLz help.....
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    Difficulty interfacing Atmega32 with GSM mobile ............

    atmega max232 I wrote a code to send AT commands from ATmega32 to my Ericson 230 cell , but sadly :cry: it is not giving any output ...... I used a RS232(DB9 standard ) cable to interface the cell and the Atmega32, besides i also used MAX232 IC for Voltage conversion . My code is ...

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