Search
Search Only:

Search Keyword Serial

Total: 27 results found.

Page 1 of 2
... interesting retro project also.  Before Phillip shipped me the board we tried running a boot EPROM that, if my code was right would send a continuous stream of ‘A’ characters to the serial port.  ...
...  It is showing 12 windows simultaneously.  This PDP-7, serial No. 60, was the third DEC computer to enter Australia.  It was installed at the Australian Atomic Energy Commission, Lucas Heights, ...
... Horizon with only the Z80 CPU board installed (the documentation said that the HDT ROM did not require RAM on the machine.) and a terminal connected to the left serial port (commonly the console) I expected ...
... and instead sends $GPGGA and $GPVTG at 4800 baud.  The startup configuration can be changed by connecting via the serial interface, changing the configuration and saving to backup memory but to retain ...
... more importantly the timing clock for the SIO/0 (Z80 SIO/0 serial IO controller).  Also a clean up around the reset circuit.  Looks like a reset switch or something was removed so the board by ...
6. M9301 Repair
(JAQ/BLOG)
... serial boards that live in the IO space around 7775xx. So there you go... can't trust anything with this machine.  This is the second 74175 I have replaced on the M7859.   Replacing ...
With the replacement header installed on the serial interface board and the modifications removed from the floppy drive controller it was time to reassemble the machine. Nothing special here but ...
... 2 pin headers and repeat the power up test.  The front panel LED's will run through a memory test and eventually stop with the RUN LED not lit.  If you have the serial interface connected to ...
Having sorted out the serial interface connections I turned my attention to the floppy drive controller.  Interestingly the machine had the spectrastrip connector between the main board and ...
... interface board the emulates a Radio Shack hard drive. At some point in it's life this machine had lost the spectrastrip cable that connected the serial interface board with the main board.  As ...
... on prototype board as long as you take your time and keep your interconnect wires short.   The hardware uses a Z80-SIO to provide two serial ports (with TTL to USB adaptors on my build). ...
With most computers no longer having a serial port, a TTL Serial / USB interface is required for many microcontroller projects. I have had good results with the low cost eBay modules based on ...
...  The end result looks very smart. The two serial interfaces use CP2102 USB/TTL Serial interface adaptors purchased on eBay for a couple of dollars.  They work well in this application easily ...
... http://www.retrocmp.com/tools/pdp-1134-programmers-console on using the KY11-LB to test other Unibus boards which I am going to try.... particularly the memory and serial board.    ...
... Compact Flash to IDE Adaptor on eBay (approx US$ 2).   I have been testing the board with 2 x MAX3232 based TTL to RS232 converter boards.  Replacing these with CP2102 based TTL to USB Serial ...
... following tools proved particularly useful in this process by allowing me to test the communication between HRD and my VB application without the need for serial splitter cables. The Spy mode ...
... powered from the 28VAC output of the main transformer. As well as 15VDC, the module also provides AC and DC Low signals and a 50hz signal for the real time clock on the DL-11W serial board. ...
... the TNC transmitting via the serial port and preventing the DSL-502T from booting. When programming an ATMega8 with the firmware ensure you set the fuses to 0xDA (High) and 0xBF (Low).   Incorrect ...
... parts... the level conversion was easy... standard MAX232 design but additional interfacing was required to covert the two line TTL serial to one line to suit the FT-7800R.  I discovered this design ...
In addition to configuring the DLink DSL-502T routers for the IGate project we also needed a TNC to connect between the radio and the serial port. Our TNC selection was based on the following criteria: ...
  • «
  •  Start 
  •  Prev 
  •  1 
  •  2 
  •  Next 
  •  End 
  • »

Powered by Easytagcloud v2.1

Contact Andrew Quinn

jaquinn@ihug.co.nz http://twitter.com/jaquinn