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Forum: General Discussion
 Topic: Z80 SBC Board Wanted sbc-2g-512
Re: Z80 SBC Board Wanted sbc-2g-512 [message #3917 is a reply to message #3915] Sun, 10 December 2017 00:56
rhkoolstar is currently offline  rhkoolstar
Messages: 128
Registered: October 2015
Senior Member
I guess EU post isn't available as a shipping method... cost $10.66 for 10 boards (1mm thick).
I get 10 boards for less than EU 14

Rienk
 Topic: SD card socket for the Cyclone II v1.10
SD card socket for the Cyclone II v1.10 [message #3916] Sun, 10 December 2017 00:49
b1ackmai1er is currently offline  b1ackmai1er
Messages: 5
Registered: November 2017
Junior Member
Good Afternoon,

I am looking for a supplier for the SD CARD socket on the multicomp Cyclone II v1.10

Everthing I look at online seems to have different solder tab positions and pin positions.

Is anyone able to recommend a supplier and part number?

Also wouldn't mind the same for the RCA socket which seems to be different from current designs floating around.

Thank you.

[Updated on: Sun, 10 December 2017 00:53]

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Re: SD card socket for the Cyclone II v1.10 [message #3918 is a reply to message #3916] Sun, 10 December 2017 01:07
rhkoolstar is currently offline  rhkoolstar
Messages: 128
Registered: October 2015
Senior Member
I feel your pain. I am now using micro SD cards, which don't have that problem.

I still have a few SD card sockets left over which will work. They have two tabs for pin 3 (gnd) but you can (carefully) bend these so both touch the correct island. Bend with a card in the socket, please, otherwise the connector inside will shift.

Rienk
Re: SD card socket for the Cyclone II v1.10 [message #3919 is a reply to message #3916] Sun, 10 December 2017 10:58
jcoffman is currently offline  jcoffman
Messages: 181
Registered: October 2015
Senior Member
SD card sockets have no standard pinout, especially for the Card Detect and Write Protect pins.

I have posted extensive information about CD card sockets under the heading of the ECB Dual SD card board. The footprint on that board accommodates a wide range of sockets (which does you no good for another board) and requires the setting of jumpers to indicate which CD & WP pins are in use.

One of the documents lists a large number of sockets, some known to be compatible with the Dual SD board, some known to be incompatible. The help might be in having the model numbers of a large number of different sockets, one of which will match the footprint on the board you are working with.

Digikey had 2 sockets with different footprints. Hopefully one of them will match your board.
Re: SD card socket for the Cyclone II v1.10 [message #3921 is a reply to message #3916] Sun, 10 December 2017 17:08
mscane is currently offline  mscane
Messages: 93
Registered: October 2015
Member
I'm pretty sure it uses the Sparkfun SD socket.

Have a look at https://www.sparkfun.com/products/12769

Cheers!

Max
 Topic: Chipset based IBM PC/XT compatible 8088 board
Re: Chipset based IBM PC/XT compatible 8088 board [message #3920 is a reply to message #3402] Sun, 10 December 2017 16:59
Wayne W is currently offline  Wayne W
Messages: 212
Registered: October 2015
Location: Fountain Valley, Californ...
Senior Member
Hi Sergey,

Just finished building two of these. Went very smoothly and both boards are working perfectly.

The only struggle I had was getting my PICs programmed. For some reason, my programmer did not get them programmed properly even though it said it did and verified them. After using my older programmer, they worked perfectly.

Thanks for this nice project Sergey.

-Wayne
Re: Chipset based IBM PC/XT compatible 8088 board [message #3922 is a reply to message #3920] Sun, 10 December 2017 17:22
smbaker is currently offline  smbaker
Messages: 35
Registered: January 2017
Member
After some initial struggles which I think turned out to be related to my choice of CompactFlash card in the XT-CF-Lite, my Micro 8088 system is solid and stable.

Thanks Sergey for this project, it has been a fun build!

Now we just need to talk Sergey into designing an 80286 SBC. Very Happy

Scott



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