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Re: Flashy Clock - Yet another DEV board
Posted: 24 Apr 2019 23:04
by Icky
Finally got one of these dev boards made up. Just need to build the other one up for exxos and then we can start looking at testing the Flash ROM and RTC.
IMG_3780.jpg
Re: Flashy Clock - Yet another DEV board
Posted: 25 Apr 2019 00:26
by rubber_jonnie
Nice!
Re: Flashy Clock - Yet another DEV board
Posted: 25 Apr 2019 02:24
by Smonson
exxos wrote: 20 Mar 2019 22:52
Of course if anyone is good at GEM programming it would make life a whole lot easier.
I have no idea what I'm doing, but I volunteer!
Re: Flashy Clock - Yet another DEV board
Posted: 25 Apr 2019 09:00
by exxos
Smonson wrote: 25 Apr 2019 02:24
exxos wrote: 20 Mar 2019 22:52
Of course if anyone is good at GEM programming it would make life a whole lot easier.
I have no idea what I'm doing, but I volunteer!
None of us have any idea what we are doing :lol:
I have somewhere what looks to be the source for the monster flash tool, so that may be of use to get started, but its not the same chip so the command sequences are going to be diffenrent.
The RTC should be easy, needs a proper tool as well though. I will peek and poke at it in stos first to see if I can get a register dump and set the time etc
Re: Flashy Clock - Yet another DEV board
Posted: 25 Apr 2019 10:10
by PhilC
exxos wrote: 25 Apr 2019 09:00
Smonson wrote: 25 Apr 2019 02:24
I have no idea what I'm doing, but I volunteer!
None of us have any idea what we are doing
Cue A team theme music. "I love it when a plan comes together"
Re: Flashy Clock - Yet another DEV board
Posted: 25 Apr 2019 10:18
by rubber_jonnie
Hist wondering, is there enough space on top to plug in the IDE interface.....
Or do we need to start stacking sockets...
Re: Flashy Clock - Yet another DEV board
Posted: 25 Apr 2019 10:49
by exxos
rubber_jonnie wrote: 25 Apr 2019 10:18
Hist wondering, is there enough space on top to plug in the IDE interface.....
Or do we need to start stacking sockets...
Not really sure what you are asking... If your talking about plugging both boards in at the same time, we are not going down that avenue yet, too much trouble trying to do to development 2 boards at the same time...Better just to concentrate on one at a time...
Re: Flashy Clock - Yet another DEV board
Posted: 25 Apr 2019 11:42
by rubber_jonnie
exxos wrote: 25 Apr 2019 10:49
Not really sure what you are asking... If your talking about plugging both boards in at the same time, we are not going down that avenue yet, too much trouble trying to do to development 2 boards at the same time...Better just to concentrate on one at a time...
I was just kind of curious if the two would work together, but also having a bit of a joke too :)
Re: Flashy Clock - Yet another DEV board
Posted: 25 Apr 2019 22:20
by Icky
exxos wrote: 25 Apr 2019 09:00
Smonson wrote: 25 Apr 2019 02:24
I have no idea what I'm doing, but I volunteer!
None of us have any idea what we are doing :lol:
I have somewhere what looks to be the source for the monster flash tool, so that may be of use to get started, but its not the same chip so the command sequences are going to be diffenrent.
The RTC should be easy, needs a proper tool as well though. I will peek and poke at it in stos first to see if I can get a register dump and set the time etc
OK so to get the ball rolling here is the data sheet of the Flash chips we are using.
http://ww1.microchip.com/downloads/en/D ... 05022C.pdf
Out of the two flash chips we have on the board one is on the High byte [D8-D15] and the other on the Low byte [D0-D7] parts of the data bus.
CE is currently tied to GND
OE and WE will be controllable through the PLD on the board via an address
Re: Flashy Clock - Yet another DEV board
Posted: 25 Apr 2019 22:49
by exxos
The chip (like others) are a bit of a PITA to program as you have to "write" a command sequence first :roll:
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