Four free Z80 appliances (USA)

Started by Anonymous in comp.arch.embedded13 years ago

Cleaning out my closets, I found four Cidco (Earthlink) MailStation 120 Internet appliances. These are free to the first four people willing...

Cleaning out my closets, I found four Cidco (Earthlink) MailStation 120 Internet appliances. These are free to the first four people willing to pay postage, one per customer. These devices have a large graphical LCD, a Z80 micro (believed to be a Rabbit part), 12Mbit of flash, 128Kbyte of SRAM, parallel port and a modem. Runs off 4 x AA cells (included) and also has an AC adapter and ph...


RS-485 Troubleshooting

Started by RahulS in comp.arch.embedded14 years ago 16 replies

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...

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 differential voltages. Please help.


Disk drive on embedded system?

Started by Jack Crenshaw in comp.arch.embedded14 years ago 7 replies

I'm curious. Is anyone worrying about connecting a disk drive (floppy or HD) to an embedded system evaluation board? Or is the general...

I'm curious. Is anyone worrying about connecting a disk drive (floppy or HD) to an embedded system evaluation board? Or is the general approach to just use the Ethernet connection to a host? I've got a few evaluation systems (EZ80, Rabbit, PowerPC, 68332) and I'd like to try providing them with their own, decicated bulk storage. I've looked at USB, but the protocol seems horribly comp...


Rabbit Stack Trace Overflow

Started by dedge in comp.arch.embedded4 years ago 1 reply

I'm maintaining some code on a BL2600 board and recently saw an unhandled RST38 error while in debug mode. From what I found on the internet...

I'm maintaining some code on a BL2600 board and recently saw an unhandled RST38 error while in debug mode. From what I found on the internet this normally means writing outside an array boundary or a stack overflow. I made a few changes to the code and the error went away but I wanted to check further to make sure there wasn't a problem. I found that if I start my program from DynamicC 9.62 in ...


Using Rabbit for an embedded multi-port serial concentrator

Started by Norm Dresner in comp.arch.embedded15 years ago 8 replies

Back in, oh, somewhere around '92 or so [yes, the Dark Ages], as part of an embedded controller I designed [based in an x86 rack-mount box with...

Back in, oh, somewhere around '92 or so [yes, the Dark Ages], as part of an embedded controller I designed [based in an x86 rack-mount box with a 16-slot ISA backplane], I needed to connect the computer to 6 serial lines. Since we only had a 33MHz '386 back then, I really didn't want the CPU to be interrupted at a rate of 6 x 9600 baud so I found something called an ACL-II board which was an ...


Rabbit, Netburner, or ?

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

I have an application that will write UP TO 2k bytes of data per day (often, less) for seven days a week into a battery-backed RAM chip. The...

I have an application that will write UP TO 2k bytes of data per day (often, less) for seven days a week into a battery-backed RAM chip. The data each day would start at a 2k boundary and unused bytes from the day before would be zeroed. I want to present the data via HTML as form data to a web browser as long as the data is non-zero. When a zero is encountered, the web processor should s...


help - z85c30 controller

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

We are trying to configure a Z85C30 communications controller for communicating with both it's channels simultaneously (We are using Rabbit 3000...

We are trying to configure a Z85C30 communications controller for communicating with both it's channels simultaneously (We are using Rabbit 3000 as our microprocessor). Channel A is working well as we have a crystal connected across it. Channel B also has a crystal across it, but it is not working Our results so far: Channel A is working well. Channel B is showing Transmit Buffer Full and...


USB to Ethernet

Started by Ali in comp.arch.embedded12 years ago 14 replies

Hello good folks, Any thoughts for USB to ethernet...

Hello good folks, Any thoughts for USB to ethernet chipset? http://www.asix.com.tw/products.php http://www.k-micro.us/USB/downloads.htm http://www.moschip.com/html/MCS7830.html I tried rabbit gadget for serial2ethernet before and it was awesome, very good because of tcp/ip library and few lines of code were enough to make it work and customize. Any thing like that for usb2ethernet...


Dynamic C Output macro

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

Hi, Im just new to the rabbit platform, and i am trying to make macro's to set pins and clear them. Ive created this three Macro's to set...

Hi, Im just new to the rabbit platform, and i am trying to make macro's to set pins and clear them. Ive created this three Macro's to set or get the value from a pin: #define setPin(p,b,highval) BitWrPortI(p,& ## p ## Shadow,highval,b) #define clearPin(p,b,highval) BitWrPortI(p,& ## p ## Shadow,highval ^ 1,b) #define getPin(p,b) BitRdPortI(p,b) If i use the macro's manuall...


data download from battery powered device

Started by Jonathan Bosch in comp.arch.embedded16 years ago 2 replies

I am looking for options for downloading data from a battery powered device. The scenario is roughly as follows: The battery powered...

I am looking for options for downloading data from a battery powered device. The scenario is roughly as follows: The battery powered device (Rabbit 3000 based) collects data ( perhaps 64k ) which is periodically downloaded from system by "walk-around" data collector using a hand-held device. Physical connection to system should be uncomplicated meaning not having to open the system ho...