12 Threads found on edaboard.com: Txd 8051
if 8051 is to be used for serial communication then for loopback
Microcontrollers :: 07-06-2012 16:10 :: Elimathew :: Replies: 2 :: Views: 645
im talking abt the reset at uc at which transmittr is connectd....the problem is dat the transmitted data at the txd pin does not get received at the rxd pin unless and until the RESET AT THE TRANSMITTER IS PRESSED...THE TRANSMITTED SEQ IS ASYNC ISNT that means that data shd get received on the rxd pin as soon the r
Microcontrollers :: 03-24-2012 11:09 :: IanP :: Replies: 14 :: Views: 629
The ADuC 8051 core devices can be easily programmed through serial download. You have to connect the UART RxD/txd pins and provide a jumper to enable the bootloader.
ADuC 8051 is fully supported by the Keil compiler, for other compilers, you probably have to write some support files.
Microcontrollers :: 06-24-2011 08:56 :: FvM :: Replies: 1 :: Views: 1275
i differ from kandhu in this answer...
The moment a byte is written into SBUF, it is framed with the start and stop bits and transferred serially via the txd line...
SBUF is 8 bit register, so how and where is the data framed and where is it stored? and from where is framed data transmitted.....
Microcontrollers :: 04-19-2011 16:47 :: ckshivaram :: Replies: 5 :: Views: 1029
if nokia2700 has serial port then you can try txd and Rxd of 8051 to interface and send commands.
Network :: 07-09-2010 15:27 :: srizbf :: Replies: 8 :: Views: 2184
it is the serial data buffer.
when you want to transmit in serial mode write 8bit data here.
it will get transmitted serially in txd.
when 8051 receives serial data in Rxd , it assembles and put the 8bit data here for reading.
Microcontrollers :: 08-06-2010 17:24 :: srizbf :: Replies: 2 :: Views: 7527
i am using RF transmitter SM TX 01 and receiver SM RX 04
i have connected txd of 8051 to transmitter module and RXD of 8051 to receiver
and my program is
On transmitter side
-->sending 0x0f to SBUF
on receiver side
-->i just transfer the values from SBUF to LEDS
but i doesn't works...can anyone help me to check out this (...)
RF, Microwave, Antennas and Optics :: 12-21-2009 08:44 :: gaya3rajendran :: Replies: 0 :: Views: 909
I have interfaced CAN with 8051 & is working fine.
First refer the datasheet of both the IC's. It has it's long list of SFR's which needed to be used as per the appl'n.
the data/signal is taken from txd & rxd of 2551..
I HAVE ATTACH THE INTERFACING DIA. OF BOTH THE IC'S WITH EACH OTHER.
HOPE THIS WILL HELP U!!!!
Professional Hardware and Electronics Design :: 09-30-2009 07:46 :: mandar_mahajan :: Replies: 4 :: Views: 4730
; Port A
nreset equ 5 ; Reset Output (Open Drain)
clk equ 6 ; Clock I/O
data equ 7 ; Data I/O
; Port B
txd equ 5 ; Transmit Data
; Equates for LED Byte
pscrlck equ 4 ; If true, Scroll Lock Pressed
pnumlck equ 3 ; If true, Num Lock Pressed
Microcontrollers :: 01-26-2009 04:50 :: besthabit :: Replies: 2 :: Views: 3410
mc -- RXD-- RS232--PC
ASIC Design Methodologies and Tools (Digital) :: 09-05-2007 03:59 :: senthilkumar :: Replies: 4 :: Views: 1997
can any body tell me how to interface 7250 nokia with microncontroller.
i have proble them during interfacing it with pc another pin is performing some function i.e. 7 RTS...how can i slove this problem by connecting rxd and txd pin of 8051 with corresponds to gsm.n what shld i do bout RTS.
Microcontrollers :: 02-16-2007 06:56 :: hamidraza22 :: Replies: 0 :: Views: 564
i'm starting with 8051 , so i think the terminals on 8051 using this UART will be pin 10 , 11 ---> RXD & txd is this true ?Yes
Microcontrollers :: 09-22-2006 12:57 :: potyo :: Replies: 4 :: Views: 3416