Small, lightweight embedded HW to run Linux

Started by Greg Brown in comp.arch.embedded14 years ago 2 replies

Would you recommend any particular embedded HW with the following specs and able to run Linux? ( o ) - 5 x RS232 ports (upto 115200...

Would you recommend any particular embedded HW with the following specs and able to run Linux? ( o ) - 5 x RS232 ports (upto 115200 bits/sec) ( o ) - 1 x 10/100 MBits/sec ethernet ( o ) - 2 x 8 bits general purpose digital I/O lines (TTL) ( o ) - Able to booth from either Support ComaptFlash memory unit or USB memory stick ( o ) - Weight less than 100grams ( o...


Making a connection with Android device through USB

Started by pozz in comp.arch.embedded4 years ago 4 replies

I'm trying to find a way to make a connection between a custom MCU-based device (accessory) and an Android device (smartphone or tablet). The...

I'm trying to find a way to make a connection between a custom MCU-based device (accessory) and an Android device (smartphone or tablet). The goal is to exchange some data as with the old and good asyncronous serial (RS232/UART/RS485). My goal is to let the user configure the device through its smartphone, without power up a laptop or using local HMI (that will be surely worse than An...


linking imagecraft compiler with assember file

Started by fabrizio in comp.arch.embedded16 years ago 5 replies

Hi, I am using the IMAGECRAFT compiler to program the ATMEGA16 device. I'm trying to write a PC program, using Delphi, to make a monitor...

Hi, I am using the IMAGECRAFT compiler to program the ATMEGA16 device. I'm trying to write a PC program, using Delphi, to make a monitor that will be able to manipulate SRAM memory on the ATMEGA16 device. The PC is connected via RS232 to the Device. For example: Command entered on the PC : D 0060 10 Meaning: Display 10H Bytes starting from SRAM address 0060H ...


Problem with A/D

Started by Dado in comp.arch.embedded15 years ago 8 replies

Hello, I have problem with .C programming! (Working with Code Vision for AVR). I have set up one PCF8591 on I2C BUS. Can You help me with...

Hello, I have problem with .C programming! (Working with Code Vision for AVR). I have set up one PCF8591 on I2C BUS. Can You help me with code, where I m doing wrong? Chip type : ATmega8515 Program type : Application Clock frequency : 4,000000 MHz Memory model : Small External SRAM size : 0 Data Stack size : 128 Communication parameters: 9600 8N1 [RS232 SPARE header] [PORT...


[msp430] problems setting 8MHz CPU frequency

Started by Oskar in comp.arch.embedded12 years ago 7 replies

Hi, I'm trying to clock the CPU (MSP430F1611) to 8,000,000 Hz and I've run into some problems. Making the CPU to actually run at 8MHz was...

Hi, I'm trying to clock the CPU (MSP430F1611) to 8,000,000 Hz and I've run into some problems. Making the CPU to actually run at 8MHz was easy enough: DCOCTL = DCO0 + DCO1 + DCO2; /* 0xE0 */ BCSCTL1 = XT2OFF + RSEL0 + RSEL1 + RSEL2; /* 0x87 */ However, the UART1 stopped working. What I've got so far is: void uart1_init( unsigned int ubr ) { /* RS232 */ P3DIR &= ~0...


LNK1136: invalid or corrupt file Flash2808_API_V302.lib

Started by Marcos in comp.arch.embedded11 years ago 2 replies

Hi, I am trying to develop a Flash program utility using RS232 serial communication for TMS320F2808 target board with out using any...

Hi, I am trying to develop a Flash program utility using RS232 serial communication for TMS320F2808 target board with out using any compile tools(like Code Composer Studio), and eliminating the manual intervention. My main intention is to avoid manual intervention and perform the Flash operations through command line, once i open a communication channel(COM port) and SCI A/B channel. I a...


Best Method to Download Data from a datalogger?

Started by Mercy in comp.arch.embedded13 years ago 30 replies

Hi All, So my company has a datalogger for trucks and etc. It's a simple black box design, nothing too fancy about it. Right now the clients...

Hi All, So my company has a datalogger for trucks and etc. It's a simple black box design, nothing too fancy about it. Right now the clients download data by bringing a laptop to the truck, plugging a null modem cable into the RS232 of the black box and downloading the data as a text file via HyperTerminal. We want to make this process easier for our clients. I have the fun task of e...


High speed (230K) RS232 drivers?

Started by linnix in comp.arch.embedded8 years ago 49 replies

Gee Wee, the customer is not happy with 115K. We already determined that TI's MAX232 works up to 115K and the MAX3232 won't even work at 115K...

Gee Wee, the customer is not happy with 115K. We already determined that TI's MAX232 works up to 115K and the MAX3232 won't even work at 115K (although it claims to work). I know there are pin-incompatible MAX-something, but we don't want to change layout, just for the sake of in-compatibility. Are there pin-compatible, reliable MAX232 clones for 230K that work, not just claim to work? Th...


WLAN<->serial converter

Started by Andreas in comp.arch.embedded15 years ago 4 replies

Hi! Can anyone give me some links to WLAN serial(USB or RS232) converters, please? It may be an integrated chipset solution, an embedded...

Hi! Can anyone give me some links to WLAN serial(USB or RS232) converters, please? It may be an integrated chipset solution, an embedded board solution or even a ready device built in a case. Google gives me products of the following solution: serial-LAN-converter connected to a LAN-WLAN-converter, I hope there is a smarter way. Thanks!


ICP Wafer 5820 Instrument Graphics

Started by Robert in comp.arch.embedded14 years ago 2 replies

Any software, freeware that can be purchased that can operate using instrument type graphics. For example on the large comercial aircraft they...

Any software, freeware that can be purchased that can operate using instrument type graphics. For example on the large comercial aircraft they use just one display screen using graphics to show fuel levels, voltage readings, data of engine performance. Is there software around that can read the RS232 port and show a analog meter on the screen like a digital meter, instead of using a osci...


Developing interrupt driven serial driver

Started by Chris Carlen in comp.arch.embedded12 years ago 5 replies

Greetings: I am writing driver code for the serial communications interface (SCI) of the TI TMS320F2812. So far I have been developing a...

Greetings: I am writing driver code for the serial communications interface (SCI) of the TI TMS320F2812. So far I have been developing a set of functions analagous to C stdio stream IO calls that allow me to communicate via a RS232 link to a PC. The 16-byte receive and transmit FIFOs are utilized by the lowest level getc/putc functions. The other functions merely call getc/putc: ...


need help finding voice modem

Started by Joe in comp.arch.embedded15 years ago 2 replies

I need to find a basic rs232 voice modem for a proof of concept device. The final product will have the functionality built in but for now I...

I need to find a basic rs232 voice modem for a proof of concept device. The final product will have the functionality built in but for now I need an external solution. The application will generate DTMF codes, and send a voice message. The modem needs basic hayes commands, enough to go off hook and dial out, send a message and hang up or hold the line open. ARM9 processor running ...


LED Display

Started by ratemonotonic in comp.arch.embedded12 years ago 15 replies

Hi All, I am working with a big LED display which interfaces with the PC by RS232 (9600 baud,no parity , 2 stop bits , 8 bit, no hardware...

Hi All, I am working with a big LED display which interfaces with the PC by RS232 (9600 baud,no parity , 2 stop bits , 8 bit, no hardware flow control ). I am trying to write my own application using cygwin on vista using open , read and write function calls. Every thing works data is comming out of com2 but is not read by the LED display , I have written a basic programm which sends data...


D-sub colder bucket connector with 4-40 UNC rivited jack posts

Started by steve in comp.arch.embedded5 years ago 7 replies

I am trying to source male 9 way male D connectors solder bucket/cup with riveted female jack posts on the front face so I can make up RS232...

I am trying to source male 9 way male D connectors solder bucket/cup with riveted female jack posts on the front face so I can make up RS232 extension leads that can be screwed together. I know you can get Jack posts that have a nut to hold hem in place, but the problem there is that the nut will not fit inside the D shells, any help would be greatly appreciated. Thanks Steve j


library stdio.h of CCS C Compiler

Started by Paolo in comp.arch.embedded16 years ago 8 replies

Hi everybody, I use the CCS C Compiler to program the behavior of a robot (controled by a PIC 16F877) and I want to write some data from the...

Hi everybody, I use the CCS C Compiler to program the behavior of a robot (controled by a PIC 16F877) and I want to write some data from the PIC to a file via port serial RS232. But the problem is that "stdio.h" library of the compiler contains only 'getc', 'putc' but no file handling functions like 'fopen', 'fputc', fgetc', etc... Is there some solution i can use to perform "file handli...


Ezurio's UWScript and LPC2104

Started by AlexandreD in comp.arch.embedded11 years ago

Hi all, I'm working on an application with a LPC2104 storing data on a memory card, which is connected through RS232 (using only the ground, TX...

Hi all, I'm working on an application with a LPC2104 storing data on a memory card, which is connected through RS232 (using only the ground, TX and RX) to an Ezurio's WIFI module. I programmed the microcontroller using C, and when I connect it on a computer to check whether it is working, everything is OK. Same goes for the WIFI module, programmed using Ezurio's UWScript. However, when I conne...


Does a PIC16F628 Serial Port Go To Sleep?

Started by Ike in comp.arch.embedded14 years ago 3 replies

Hello! I am working on an serial RS232 RF link between two PIC16F628's. The master uses SEROUT to send a serial command such as...

Hello! I am working on an serial RS232 RF link between two PIC16F628's. The master uses SEROUT to send a serial command such as "*0001-5260*F" out to the cloud of slaves. The "*0001-5260*" is the address of one of the slaves, and the "F" is the command. The slave with that serial number responds, receives the string with SERIN, then verifies that the whole command was read (it must m...


Wireless cables replacement technology?

Started by Neil Cherry in comp.arch.embedded12 years ago 14 replies

I'm looking for a solution for wireless cable replacement. Basically I would like to have some wireless technology that replaces cables...

I'm looking for a solution for wireless cable replacement. Basically I would like to have some wireless technology that replaces cables from point A to point b-z. I'm thinking about more than one RS232 cable and I'll need to figure out the control mechanism for the control pins. Anyone have any ideas? I'd be willing to build it myself so any solutions would be of interest to me. Thanks ...


CMOS camera chip + microcontroller = Home made camera

Started by Hugo Muccho in comp.arch.embedded14 years ago 8 replies

I am studying digital electronics and I need to build a low-resolution camera unit which can transmit the captured frame over an RS232 comm...

I am studying digital electronics and I need to build a low-resolution camera unit which can transmit the captured frame over an RS232 comm channel. I will use a CMOS camera chip and a low cost microcontroller (ATMega or PIC) because of limited student budget. Can you tell me if you can see any design tricks/pitfall on this project that I need to be aware of? Where can I order a low...


Does RS422/RS485 work on Advantech PCM-5820?

Started by Lewin A.R.W. Edwards in comp.arch.embedded16 years ago 2 replies

I just received an unpleasant surprise when trying to use differential serial on the Advantech PCM-5820. The system has jumpers for the second...

I just received an unpleasant surprise when trying to use differential serial on the Advantech PCM-5820. The system has jumpers for the second serial port; RS232, RS422 or RS485. In either RS422 or RS485 mode, I see no activity at all on the TxD+/- pins. My software is asserting DTR and RTS, so I don't know what else I could possibly do to enable the drivers (and they should always be enab...