BYTEC/16

New memory & next steps 6

Jun

27

2012

I have been unable to spend much time on the project lately, so there is no important milestone to report today. Still, some time ago I soldered the new memory board, implementing the banked model described in this post, and extending the original idea. It worked at the very first attempt, so I have no ...

UART board soldering and bring-up 2

May

5

2012

The UART board from BatchPCB must be cursed. First, it took it (and the accompanying new memory board) over four months to get here, then it silently refused to cooperate when I finally soldered it. I was surprised, as it was really an easy board to design and solder, with only few components and lots ...

Yet another instruction set update

Apr

30

2012

Some time ago, when fiddling with my Monitor/OS program I decided to make a few changes to the instruction set. I guess that’s the real flexibility when you build your own CPU – if you don’t like the instruction set, and you suddenly come up with a need for an instruction that is missing, you ...

New boards arrived

Mar

14

2012

Finally, after a very long wait, I have found an envelope from BatchPCB in my mailbox. I placed an order on November 1, 2011 for two euro sized boards in a hope that I would receive them after three to four weeks. I received them last week, so after more than four months. That’s way too long. ...

IDE interface works

Feb

17

2012

Believe it or not but I am still waiting for memory and UARTs board from BatchPCB. I am waiting for a redo after my last shipment was lost but looks like these guys assign lower priority to redo jobs. All in all, I have been waiting for two boards since November 1 last year. My ...

Wait states 1

Jan

8

2012

My recent order of boards from BatchPCB got lost somewhere on its way. I am not sure if it was lost by USPS, at customs or at my local post office here in Warsaw, but the fact is I am still waiting for a new memory and UARTs boards. BatchPCB is re-doing my order now ...

New memory & next steps 6

UART board soldering and bring-up 2

Yet another instruction set update

New boards arrived

IDE interface works

Wait states 1

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