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198 Threads found on edaboard.com: Two Uart
Hi all.... i have completed my project to send and receive messages between Mobile LG "GW300" and Pic16f877 using uart for controlling two relays. I used frequency of 8MHZ and baud rate 9600 using the program MikroC Pro. I faced big problem with my code which`s attached below. I can`t read the message, there is no action happens when i received th
Here is the Explorer 16 User's Guide: The schematics are given. On page 44, you can find the uart subsystem diagram. On page 38, you can find the connection information for the PIM socket. According to those two diagrams, uart2 is used. Hope this helps. Ta
Hi, I have the same type of problem but slight different. I have connected ATmega32a to AT90USB1287 using uart and AT90USB1287 to PC using USB. Intially, AT90USB1287 is talking to the PC via USB. ATmega32A is talking to the PC via USART(RS232). Now i have connected ATmega32A board to AT90USB1287 using uart communication(RS232 cable by disablin
i am trying to connect CP2021 device to a VNC2(viniculum-II from FTDI) in host mode, i am new to USB, i want to know what are necessary parameters of the device which the host should be aware of should aware of , as i have seen there are lot of descriptor. They have provided two related precompiled firmwares one is CDC-uart bridge other one is F
how to connect two circuit having max232 ? plz help
Hi frends, I am trying to use auto flow control in uart using RTS-CTS with two keil board MCB2300. I use UM10211 LPC23XX user mannua for programming. In receiver RDA and RTS both are working and show status in keil pop up window but i am not get change on RTS pin voltage and board DB9 connector RTS pin. I also attach my transmitter, receive
hi, I want to use 2400 for reception and 9600 for transmission.
What microcontroller are you using? Many come with two hardware uarts. What compiler? Many have a built-in library/function for software (a.k.a. bit-bang) uart as well as hardware. Bit-bang is quite easy - serial communication is just a case of toggling a pin high and low at a specified rate and with a specified protocol (start bit, (...)
I assume you have set up the same baud rate, data bits, etc on the two devices have you set up the peripheral pin select for the uart Rx and Tx ? have you looked at the signals using an oscilloscope?
I would like to do my mtech project (vlsi ) in a company. can u please suggest how to approach the companies.the peroject duration is for two semesters
Since there are only one hardware uart and you have two devices to interface at same time; You have to use a software uart for one of connection. Some programming languages have built in software uart (eg MikroC) library.
Hi, How we can compare the boot loaders of two different controllers. In on of my project, In place of NXP P89V660FA processor we have to replace with Atmel AT89C51RB2 . Customer asked to check the boot loader compatibility for these two controllers. Please suggest.Hardware wise, NXP is programmed through uart and ATMEL is through (...)
Hi, How we can compare the boot loaders of two different controllers. In on of my project, In place of NXP P89V660FA processor we have to replace with Atmel AT89C51RB2 . Customer asked to check the boot loader compatibility for these two controllers. Please suggest.Hardware wise, NXP is programmed through uart and ATMEL is thro
Hello, I'm using the microcontroller PIC16F877, and I need use two uart, this PIC only has got one uart, so I need design a uart software. Well, I designed the uart, and before work fine, without WDT, without sleep, only receive date and send date directly. Now I need save the dates received in a (...)
Hi Dear , There is no need of MAX232 to communicate two microcontrollers. Just connect as connected in attached
i am using STC12C5A60S2 in my project.. for my project i need configure two uart's.. one for receiving and another one for transmission.. for receeiver side i am using primary uart and there is no problem. For transmitter side i am using secondary uart.. for secondary uart i need to check S2BUF.. how can i (...)
Hello, my project is to connect two 8051 and each of them have some led and buttons. Idea is to push button witch is connect to one 8051 and to turn on led or write something on lcd that is connected to other led. Master 8051 must have rx and tx pins free so on that controller pins p1.1and p1.2 have to be configured for communication with other (sl
you have several options depending on your system configuration desired 1. is there some interaction between these two systems 2. do you have 2 COM ports on your PC .. or do you plant to use USB to uart conversion 3. the required speed of communication, does COM port fulfill your speed requirements You could use multiplexing on a single COM port (
Hi guys I would like to connect two device to PIC16f877a and both of them require usart port to connected, One of the device is receive data from tag , and the other device is chip for sound that output some sound I program it. so I want to connect two PIC because PIC16f877a contain only one port have usart (PORTC). How can I do it? Cou
You have problems becaus you have two different clock domains. The easiest way is to have only one clock domain. Generate the baudrate as a pulse: BAUD_RATE: process (CLK_IN) variable clk_div_counter : integer range 0 to 434; begin if (rising_edge(CLK_IN)) then BAUD_CLK <= '0'; clk_div_counter := clk_div_counter