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KML85
Sweden
5 Posts |
 Posted - 04/20/2022 : 06:14:51
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Hi
Im trying to understand how to add my own chip to read the data.
the chips are very similar to say 27C010 but with a few pins in other locations and also thc ROM is just 28pin not 32pin
128KB ROM in 28 pin package
only things that is different is:
OE on the eprom is A16 (pin 24 on eprom) on the ROM and pin 28 on the ROM is VCC (on eprom its NC)
Can someone explain how I can add a custom device for this?
I have read the rom successfully by manualy re-routing the pins with wires
regards
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| Reply #1
anniel
2596 Posts |
Posted - 04/20/2022 : 08:16:25
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quote:
Originally posted by KML85
Hi
Im trying to understand how to add my own chip to read the data.
the chips are very similar to say 27C010 but with a few pins in other locations and also thc ROM is just 28pin not 32pin
128KB ROM in 28 pin package
only things that is different is:
OE on the eprom is A16 (pin 24 on eprom) on the ROM and pin 28 on the ROM is VCC (on eprom its NC)
Can someone explain how I can add a custom device for this?
I have read the rom successfully by manualy re-routing the pins with wires
regards
Use the correct device class. |
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| Reply #2
KML85
Sweden
5 Posts |
Posted - 04/20/2022 : 08:26:05
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quote:
Originally posted by anniel
quote:
Originally posted by KML85
Hi
Im trying to understand how to add my own chip to read the data.
the chips are very similar to say 27C010 but with a few pins in other locations and also thc ROM is just 28pin not 32pin
128KB ROM in 28 pin package
only things that is different is:
OE on the eprom is A16 (pin 24 on eprom) on the ROM and pin 28 on the ROM is VCC (on eprom its NC)
Can someone explain how I can add a custom device for this?
I have read the rom successfully by manualy re-routing the pins with wires
regards
Use the correct device class.
Could you explain how to add a custom chip, your comment is beyond usefull |
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| Reply #3
anniel
2596 Posts |
Posted - 04/20/2022 : 08:30:15
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quote:
Originally posted by KML85
quote:
Originally posted by anniel
quote:
Originally posted by KML85
Hi
Im trying to understand how to add my own chip to read the data.
the chips are very similar to say 27C010 but with a few pins in other locations and also thc ROM is just 28pin not 32pin
128KB ROM in 28 pin package
only things that is different is:
OE on the eprom is A16 (pin 24 on eprom) on the ROM and pin 28 on the ROM is VCC (on eprom its NC)
Can someone explain how I can add a custom device for this?
I have read the rom successfully by manualy re-routing the pins with wires
regards
Use the correct device class.
Could you explain how to add a custom chip, your comment is beyond usefull
All the details are in the devices.txt, simply read it. |
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Add a custom chip
