Embedded HDLC processing board

Started by Dmitry in comp.arch.embedded13 years ago 1 reply

Hi, does anybody know good a cPCI and potentially ATCA board for embedded HDLC processing? What I am looking for is an embedded softswitch for...

Hi, does anybody know good a cPCI and potentially ATCA board for embedded HDLC processing? What I am looking for is an embedded softswitch for the HDLC packets. It should be able to process them depending on the content and forward between interfaces. E1/T1, Ethernet and H.110 should be all present. Besides forwarding within the board a biderectional host data interface is needed as well. Th...


I need HDLC transceiver for interfacing with Serial Communication Controller

Started by magalingam in comp.arch.embedded10 years ago 1 reply

Hello Sir, I have to interface Serial communication controller- SCC(PEB20534) with HDLC transceiver through synchrocous...

Hello Sir, I have to interface Serial communication controller- SCC(PEB20534) with HDLC transceiver through synchrocous signals(TXCLK,RXCLK,TXDATA,RXDATA). Can you tell me the HDLC transceiver with RS232/RS422? Regards, N.Magalingam


Looking for 3.3V SCC that can do HDLC

Started by Anton Erasmus in comp.arch.embedded13 years ago 2 replies

Hi, Can anyone recommend a nice Serial Communications Controller, in a QFP or similar package that can do HDLC at rates at least up to 1Mb/s....

Hi, Can anyone recommend a nice Serial Communications Controller, in a QFP or similar package that can do HDLC at rates at least up to 1Mb/s. It also needs to be able to run from a 3.3V supply, and preferably have 5V tolerant inputs on the serial side. Regards Anton Erasmus


MC68360 HDLC/SDLC.

Started by Cristian Brambilla in comp.arch.embedded13 years ago 1 reply

Sorry if the questions sound silly, but I'm a newbie . . . I need to develop the SDLC protocol for the MC68360. I read that this processor...

Sorry if the questions sound silly, but I'm a newbie . . . I need to develop the SDLC protocol for the MC68360. I read that this processor supports the HDLC protocol. My questions are: 1) Can someone point me to a URL where I can download a driver for the MC68360 able to address RS232 and/or RS422 I/O ports? 2) Can someone point me to a URL where I can download the HDLC driver for the ...


about HDLC/SDLC IC's

Started by tguclu in comp.arch.embedded10 years ago 5 replies

Hi Does anyone used a peripheral IC for HDLC/SDLC implementation ? Can you advice me ? I'm undecided between Infineon 20542(2 Channel Serial...

Hi Does anyone used a peripheral IC for HDLC/SDLC implementation ? Can you advice me ? I'm undecided between Infineon 20542(2 Channel Serial Optimized Communication Controller with DMA-SEROCCO-D) and Zilog's Z85C30 What I need is ; -3x USART outputs (i will have to use 2xIC's for that) -SDLC protocol support (prefer if bit stuffing,crc check,data flow control done in hw) In the dat...


HDLC Synchronous RS232

Started by sunil in comp.arch.embedded12 years ago 8 replies

hi all, iam currently programming MC68360 board processor SCC's to work for Synchronous HDLC and iam taking out RS232 pin outs from the...

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. can u pls give me some hints what r the things that can go wrong which will lead to this kind of ...


HDLC Normal Responde Mode implementation

Started by Anonymous in comp.arch.embedded4 years ago 7 replies

I was searching for a reliable and simple protocol for a multidrop master/slave RS485 network. Reliable means it should work well if some...

I was searching for a reliable and simple protocol for a multidrop master/slave RS485 network. Reliable means it should work well if some errors occur, so it should provide retransmissions and detection of frame duplication. As soon as I read about HDLC in Normal Responde Mode, I loved it immediately. It is exactly what I wanted. http://en.wikipedia.org/wiki/High-Level_Data_Link_Cont...


ATmeag128 8Mhz with Z85c30 SCC(zilog)

Started by sebastiankoo in comp.arch.embedded10 years ago 1 reply

Hello. I am coding to build-up SDLC(HDLC) in z85c30 with MCU, ATmega128. I am trying to build-up SDLC(HDLC) protocal H/w environment...

Hello. I am coding to build-up SDLC(HDLC) in z85c30 with MCU, ATmega128. I am trying to build-up SDLC(HDLC) protocal H/w environment is z85c30(CMOS) with 4.91520Mhz crystal for PCLK. Also, z85c30's D0~D7 is connected with MCU in un-multiplexed mode(=direct) communication specification is as below - 38.4kbps - NRZI mode - Response time: 50ms - Address: Lower=70...


USB synchronous serial port

Started by Stein Erik Andresen in comp.arch.embedded13 years ago 2 replies

I'm looking for a synchronous serial adapter for USB. The device will be used for HDLC communication (framing only) on a laptop (no...

I'm looking for a synchronous serial adapter for USB. The device will be used for HDLC communication (framing only) on a laptop (no PCMCIA available, just USB). Preferably RS-232 / V.24 interface. Does such a thing exist? S.E.


ISDN U-transceiver

Started by Rene in comp.arch.embedded14 years ago 1 reply

Hello folks, I am looking for an ISDN U transceiver in 3.3V technologie. So far I've checked Motorolas MC145572 (5V) and some Infineon parts....

Hello folks, I am looking for an ISDN U transceiver in 3.3V technologie. So far I've checked Motorolas MC145572 (5V) and some Infineon parts. The older Infineon parts are 5V too and the SMINT series are a bit of an overkill (intelligent NT chip with U and S/T transceiver). Does anyone know a chip with preferably the following features: - 3.3V (1.8V would be ok too) - Integrated HDLC Con...


bHDLC: a simple point-to-point full-duplex protocol

Started by pozz in comp.arch.embedded2 years ago

Maybe some of you remembers my recent "Simple BUT realiable serial protocol". I was trying to implement a protocol for full-duplex...

Maybe some of you remembers my recent "Simple BUT realiable serial protocol". I was trying to implement a protocol for full-duplex point-to-point asynconous serial links. I think HDLC in Asyncronous Balanced Mode is very good for this task, but I couldn't find an implementation to reuse in my projects. So I started my own implementation and bHDLC was born. I'm glad to share my job wit...