can you 4 eeprom
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can you 4 eeprom
Can i use 4 eeprom 24c32 and use a switch to chose a active eeprom.
Last edited by dientutrongtoi on Thu Oct 11, 2018 6:55 am, edited 1 time in total.
Re: can you 4 eeprom
It is a bit more complex than just a switch, you need to make the target 24LC32A the active one then tell the FV-1 to read in the program.
Frank Thomson
Experimental Noize
Experimental Noize
Re: can you 4 eeprom
Yes you can you up to 8 EEPROMS if done correctly, Each EEPROM has 3 addres lines which are used to select the active chip so you will need to make a switching circuit around the A0, A1 and A3 which are pin 1,2,3 on a DIP 24lc32a.
Switching the active chip can be done many ways from a simple switch setup to control via a micro controller.
The link below shows a very simple way to select between 2 eeproms but that could easily be expanded to 4 with a little tinkering.
http://www.muzique.com/news/adding-memo ... -1-reverb/
Switching the active chip can be done many ways from a simple switch setup to control via a micro controller.
The link below shows a very simple way to select between 2 eeproms but that could easily be expanded to 4 with a little tinkering.
http://www.muzique.com/news/adding-memo ... -1-reverb/
www.stanleyfx.co.uk
"It's fairly straight forward, if you want to start it press start, you can work out the rest of the controls yourself."
"It's fairly straight forward, if you want to start it press start, you can work out the rest of the controls yourself."
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- Joined: Fri Sep 28, 2018 10:14 pm
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- Posts: 8
- Joined: Fri Sep 28, 2018 10:14 pm
Re: can you 4 eeprom
You cannot use a 24LC256, you must use a 24LC32A
You can use a micro to emulate an eeprom but we do not have any code to do the. Other users of the FV-1 have done it.
You can use a micro to emulate an eeprom but we do not have any code to do the. Other users of the FV-1 have done it.
Frank Thomson
Experimental Noize
Experimental Noize
Re: can you 4 eeprom
Frank, I have used other EEPROMS like a 24lc64 and a 24lc256 without any problems as long as you start each program at the correct address for the FV-1, of course you can still only address 8 effects directly this way using S0-S2. Using a larger EEPROM this way does not expand how many effects programs can be used.
www.stanleyfx.co.uk
"It's fairly straight forward, if you want to start it press start, you can work out the rest of the controls yourself."
"It's fairly straight forward, if you want to start it press start, you can work out the rest of the controls yourself."
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- Posts: 8
- Joined: Fri Sep 28, 2018 10:14 pm
Re: can you 4 eeprom
greatice-nine wrote: ↑Mon Oct 08, 2018 11:40 amFrank, I have used other EEPROMS like a 24lc64 and a 24lc256 without any problems as long as you start each program at the correct address for the FV-1, of course you can still only address 8 effects directly this way using S0-S2. Using a larger EEPROM this way does not expand how many effects programs can be used.
Re: can you 4 eeprom
Yeah, looking at the datasheet I see it would work.ice-nine wrote: ↑Mon Oct 08, 2018 11:40 am Frank, I have used other EEPROMS like a 24lc64 and a 24lc256 without any problems as long as you start each program at the correct address for the FV-1, of course you can still only address 8 effects directly this way using S0-S2. Using a larger EEPROM this way does not expand how many effects programs can be used.
Frank Thomson
Experimental Noize
Experimental Noize