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RS232 in Comp.Arch.Embedded

Comp.Arch.Embedded is a worldwide Usenet news group that is used to discuss various aspects of Embedded Systems development.

We found 320 threads matching "RS232"

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RS232 on PocketPC
0

Started by Joris Dobbelsteen 9 years ago
Dear, I'm looking for a handheld PC running Windows (CE/Mobile) with a RS232 connection. Or unless someone can inform me about whether a USB-to-RS232 device works on these devices? Thank you, - Joris ...RS232 on PocketPC

Need a RS232 PCI card that works with optos
-1

Rumpelstiltskin - 4 years ago
I have test equipment with optically isolated RS232 ports. Seems modern RS232 ports do not support +/-12V. They all seem to be less than +/-8V, many only +/-5V. Anybody know of a cheap source for +/-12V RS232 PCI serial boards? What ever happened to 1488/1489 serial drivers? ...Need a RS232 PCI card that works with optos

RS232 VB6 HELP!
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electro - 7 years ago
i have a microcontroller which i want to interface to my PC thorugh VB using the rs232 connection.. i wish to use the RTS/CTS as well as the DTR signal pins from the rs232.. 1.RTS will be used to simply reset/start the microconotroller application(rs232 output) through a port input pinof the mc...RS232 VB6 HELP!

GSM cell phone with RS232 data interface ??
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Started by Unknown 4 years ago
Does anyone know of a modern GSM phone which still has an RS232 data cable available for it ? (Most have gone to USB .. I want to send SMS messages from my embedded device which only has a RS232 port) Thanks, Stuart ...GSM cell phone with RS232 data interface ??

i2c/rs232 converter
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Started by Raphael 9 years ago
Does anyone know of a way to put an rs232 ascii data stream onto an i2c bus as a slave device. For example, I have an i2c bus which has a master already. I need to give this master the data which is coming from an rs232 device, the problem is that all the rs232 to i2c converters I've seen are ...i2c/rs232 converter

RS-485 Troubleshooting
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RahulS - 7 years ago
Hi, I am using Rabbit development board which has separate ports for RS232 and Rs485. Right now i am using a single port both as RS232 as well as RS485. The port works fine for RS232 signals but for RS485 signals, the differential output is not proper.I think there is some problem with the dif...RS-485 Troubleshooting

LIN and RS232
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Jones - 7 years ago
I have an embedded target I am trying to program (MC9S08DZ60 microcontroller) that has the SCI pins connected to a TJA1020T LIN transceiver with single-wire output. My question is, can I connect this single-wire LIN directly to a pin (or pins) of the RS232 port on the back of an old DOS PC, ...LIN and RS232

I need 1 USB to many RS232 Convertor?
-1

ömerkaraküçük - 5 years ago
I've an embedded system with Linux running on an ARM9 MCU and i need to design an interface card to communicate with cards like 7816 smart cards. I can only use USB interface of the system and i can communicate with cards via rs232 protocol. do you have any idea to convert USB port of this sytem...I need  1 USB to many RS232 Convertor?

Wanted: Linux embedded module w/ RS232 and ethernet
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Started by Udo Giacomozzi 9 years ago
Hello everybody, can somebody suggest me a embedded linux module with RS232 and Ethernet interfaces? Not much more is needed. The RS232 interace is used to attach a GPRS modem module. I want to use one of the following configurations: 1 - FTP server for the ethernet side, upload then ...Wanted: Linux embedded module w/ RS232 and ethernet

tms470
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Don - 7 years ago
Hi, I am currently attempting to use the DMA channels in the TMS470 (arm7dtmi core product from TI). I can't seem to get it working quite right. Here is what I'm trying to do. 1. Set up a simple array of chars 'a', 'b' through 'e' 2. Write these chars to the SCI port (RS232) via a memory-...tms470

Live Video Feed over one RS232 line (Rx or Tx)
-1

GregNash - 4 years ago
Hi all, I have an idea to try and transmit live video camera data over one RS232 (either Tx or Rx) line. The problem is that I don’t know how to go about processing the camera data. If the camera data was transmitted over an i2c bus, then this would be possible (as per http://www.gedanken.d...Live Video Feed over one RS232 line (Rx or Tx)

Four RS232 ports on PIC
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Miem - 7 years ago
Hi, I want to ask expert advise how can I create four RS232 interface on a PIC microcontroller? (I'm planning to use PIC18F6680) Thanks, Miem Chan miemchan at gmail . com ...Four RS232 ports on PIC

RS232 Voltage Levels
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Started by Charles Jean 7 years ago
I've got a datasheet for a chip that takes an RS232 serial input with a protocol of 9600,N,8,1. It indicates the voltage level at this input is hardware-selectable to either +/- 12V(as found from a PC serial port), and either normal or inverted TTL level(0-5V). I plan on feeding this chip a TTL...RS232 Voltage Levels

how to extract +12V from RS232
0

Started by Marcellus Pereira 9 years ago
Dear ALL, I'm trying to use the ADuM1301 to isolate my embedded system from the PC. How can I extract +12V from RS232 DB9? With two diodes? But in what pins? Thanx, Marcellus ...how to extract +12V from RS232

RS232 to RS485 conversion, RTS as control line.
0

Ajab - 5 years ago
Hi people, I am using a MAX3221 IC to convert RS232 to TTL and MAX3465 full duplex IC to convert TTL to RS485. Shorted TX+, RX+ and TX-, RX- for 2- wire RS485 protocol. RTS line is used for controlling enable of max3465. DE and ~RE are given to TTL RTS. But the RTS always remains high.. so f...RS232 to RS485 conversion, RTS as control line.

need TCP/IP, USB, and RS232 snooper
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kathy - 6 years ago
Could anyone tell me where I can find free software for monitoring the TCP/IP, USB, and RS232 data traffic? ...need TCP/IP, USB, and RS232 snooper

RS232 to Flash logger
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Started by Don 8 years ago
Hi All, Anyone know of a readily available commercial product which can log RS232 data & store it on a removable flash card i.e.. SD /MMC/ XD etc. The instrument will be writing ASCII CSV strings. I have a cct etc for an AVR but I need to buy a few in a hurry & just have it work....RS232 to Flash logger

6802 - RS232
0

Started by Unknown 7 years ago
hi everyone, I am working on a project which has a 6802 processor and standard ram and eeprom (not decided which bands yet). I wonder If I can write sofware for 6802 in PC and can send it with rs232 port to eeprom. ...6802 - RS232

RS232 Development Board
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ratemonotonic - 6 years ago
Hi All , Does any one know an off the shelf (and cheap) development board with 3 RS232 ports? Thanks in advance for any help. Rate ...RS232 Development Board

Problems interfacing PIC UART to PC Serial Port
-1

Started by zerang shah 9 years ago
Hello, I am working on a design that requires interfacing a PIC microcontroller to the rs232 serial port of a PC. I am using the UART of the PIC16F628 but I am having problems: I can not get my PC to recognize the serial data sent by my PIC. For testing purposes I hooked up a palm pilot to ...Problems interfacing PIC UART to PC Serial Port

bluetooth->RS232
-1

Started by Unknown 8 years ago
My company makes an embedded device which normally is controlled by a wintel host via RS232. The communication method is 8-bit binary, packet based, with no hardware flow-control (3-wire interface). I now have a new requirement: My device must communicate with a bluetooth enabled wireless host...bluetooth->RS232

Processor Clock speed change abd RS232
0

Started by Unknown 7 years ago
I am looking for a microcontroller with UART that will run at 1Mhz normally and 8Mhz when more power is available. My problem is the receive on the RS232 when changing the processor clock speed. I think this will cause an upset in any receive characters coming in at the change over. Has any body...Processor Clock speed change abd RS232

RS232/485 impromptu survey.
0

Started by Not Really Me 8 years ago
How popular is that old standby async/sync serial data in new embedded designs? I know there are lots of other technologies coming into play from ethernet to wireless, USB, etc., but what percentage of your new designs are using RS232 or RS485? I still see it on almost every project. If n...RS232/485 impromptu survey.

recommendation for 8 port rs232 embedded micro
0

Started by Anchor 8 years ago
We are looking for recommendations for an 8 port rs232 embedded micro. The CPU processing requirement is minimal. Any suggestions? ...recommendation for 8 port rs232 embedded micro

are there reasons why to use SLIP in these days?
0

Started by jazzisnow 8 years ago
hi all i am dealing with a company that should develop a box for me. the box should replace an existing box that is connected via rs232 to a pc. now i have asked them to (instead of going to usb) make a proposal for using ethernet instead of rs232. upfront i described what i have in min...are there reasons why to use SLIP in these days?

Using USB instead of RS232 on embeded project
0

Started by Art K6KFH 9 years ago
I am developing a product that requires a serial port to transfer a few bytes of data to a host pc on a repetitive basis. Currently using 115kbaud on an RS232 port on my board and that works fine. A little slower is ok too. Some feedback has indicated that a USB port would be an attractive al...Using USB instead of RS232 on embeded project

usb to serial port adapter
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Nottingham - 8 years ago
Has anyone seen a device that allows older serial ports only computers to use USB devices? I can only find RS232 to USB adapters turning USB ports to RS232. I need the other way around and to work on NT. ...usb to serial port adapter

Please suggest USB to RS232 adapter that works 100%
+1

Tomás Ó hÉilidhe - 5 years ago
I've purchased one already made by "Cypress Semiconductor" but it doesn't work. The VID is 04b4 and the PID is 5500. Can anyone suggest a USB to RS232 adapter that does its job perfectly 100% of the time under Microsoft Windows, i.e. it trully behaves exactly just like any other se...Please suggest USB to RS232 adapter that works 100%

PIC/AVR PWM + RS232 simultaneously?
-1

Started by Unknown 5 years ago
Are there any sub 10 USD AVR or PIC uC that can do hardware PWM at the same time as hardware RS232 ..? The source of my question is that I suspect that same timer is used both for bitrate generation and for PWM frequency+duty cycle. ...PIC/AVR PWM + RS232 simultaneously?

8 output pins to RS232 UART/USB
0

Started by Niek 9 years ago
Hello, Does somebody know if there is a chip with 8 input ports to send 1 byte parallel and then automatically sends the byte out by USB (first choice) or by RS232?? My problem is that I need 3 com-ports on my microcontroller and my processor (zilog Z8S180) only has 2!!! I have an 1 byte ou...8 output pins to RS232 UART/USB

Has anybody tried using Lauterbach's TRACE32 Simulator?
-2

marL - 5 years ago
Hi guys. I'm doing some investigation regarding TRACE32 Simulator. I'll be simulating a board with a PowerPC chip installed running in pSOS. When using the board, I simply connect it through RS232 to my PC. To test it, I use the Hyperterminal in Windows. But what I want is, instead of using the...Has anybody tried using Lauterbach's TRACE32 Simulator?

HDLC Synchronous RS232
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Started by sunil 8 years ago
hi all, iam currently programming MC68360 board processor SCC's to work for Synchronous HDLC and iam taking out RS232 pin outs from the P2 connector. I have initialized the registers and set jumpers according to the instructions. but iam not getting the Clock signals from the TXCLK lines....HDLC Synchronous RS232

Excel-RS232 via Cheapcomm: Where?
0

Started by Joerg 6 years ago
Hello Folks, Since mscomm.ocx for some strange reason will pop a license block unless you also install VB Professional (which most people don't need) I am looking for other methods to communicate with RS232 from Excel VBA, other than directly using the API. Lots of Google searching provided...Excel-RS232 via Cheapcomm: Where?

Microprocessor & full fledged RS232
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Started by QBA 9 years ago
Hello, I need an eval. board preferably with 68HC11/12 that has full fledged RS232, most importantly RTS and parity manipulations -- changing mark parity to space parity from one byte to next. Do you know any such eval. board? Thanks! QBA ...Microprocessor & full fledged RS232

RS232 or USB to RS485
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Started by QBA 9 years ago
I need RS232 to RS485 converter or USB to RS485 converter, are there vendors out there you recommend for these converters? More specifically, RS485 I am using is 2-wire (ground, don't need 4-wire version) at 19200 baudrate. ...RS232 or USB to RS485

reading in data from rs232 port, require to resend as an email
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Lyn - 5 years ago
I am reading in some temperature sensor data, via RS232 (actually converted to USB via a CP2102 ), approx every hour into a Windows XP PC. It reads fine into Windows Hyperterminal. I want to be able to send this data out via email as it arrives. Is there any application that can do this, free...reading in data from  rs232 port, require to resend as an email

RS232 Full Duplex to Half Duplex
0

Started by Unknown 8 years ago
Is there any way to make the rs232 port on the 6812 to work like a half duplex port? ...RS232 Full Duplex to Half Duplex

MyBlueRoom.com is now www.BlueRoomElectronics.com
0

William at MyBlueRoom - 7 years ago
If you're looking for the schematics on www.myblueroom.com Inchworm ICD2 & Cricket Thermostat. I've had to move domains and transferring was a royal pain. I've not updated the site though, I want to put the PCB layout for the ICD2 compatable (easy to build and very basic VDD 5V and VPP ~1...MyBlueRoom.com is now www.BlueRoomElectronics.com

Fingerprint scanner w/RS232 interface
0

Started by S. Harnek 9 years ago
Hi group, We have a need for a fingerprint scanner to be connected to our controller, running ROM-DOS, and only having RS232 connectivity available. The idea is for staff to id themselves as part of a security protocol to initiate critical processes. The fingerprint ids to match are relativ...Fingerprint scanner w/RS232 interface

CAN functional test
+1

Jack - 3 years ago
Hi, I'm preparing a end of production test for a board. The test will be semi automatic, there will be a guy that push some buttons and turn some poti. On the board I have rs232 an CAN communication. For rs232 it's easy, I make a loopback after the tranceiver and just check that the yte I rece...CAN functional test
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