Search found 7 matches

by DGrafflin
Wed Feb 07, 2024 4:09 pm
Forum: Hardware
Topic: Odd topic with old school technology
Replies: 6
Views: 1593

Re: Odd topic with old school technology

I have thought of that, but not sure how I can bring the low byte + high byte together. I'll get there if it can be done.
I am impressed enough with the ESP32, experimenting should be fun and chose that over Arduino.
by DGrafflin
Wed Feb 07, 2024 1:13 pm
Forum: Hardware
Topic: Odd topic with old school technology
Replies: 6
Views: 1593

Re: Odd topic with old school technology

OK, I can understand that. Scoping this out a bit, the address latch enable peaks at 900 Khz. the way this is designed, there are 3 port extenders so I would need to "NAND" the chip select and output enable to read just the addresses for the eprom. I have the high speed WiFi6 if the ESP can match th...
by DGrafflin
Tue Feb 06, 2024 11:31 pm
Forum: Hardware
Topic: Odd topic with old school technology
Replies: 6
Views: 1593

Re: Odd topic with old school technology

The control board is 20 year old technology with an NEC 78C10g running at 12 Mhz, The firmware is on an external 27C512 prom. specs for the 27C512 call access time at 45ns I haven't measured the read cycle of the operating controller. I can follow up on that if needed. The way the controller works i...
by DGrafflin
Mon Feb 05, 2024 4:21 pm
Forum: Hardware
Topic: Odd topic with old school technology
Replies: 6
Views: 1593

Odd topic with old school technology

Hi people. A serious project in mind is to configure 15 GPIO pins as an address bus. What I want is to log the sequence of addresses. Q: can the USB port send this data to the host computer or is the RX/TX needed. The goal is a text document listing the sequential addresses (in hex) which can get qu...
by DGrafflin
Thu Feb 01, 2024 2:15 am
Forum: General Discussion
Topic: Total Nubbee
Replies: 2
Views: 837

Re: Total Nubbee

I like the sound of micro-python, I wasn't certain it would complete the toolchain to program this device. I will go ahead and get the C&S version, I do know JTAG and equipped. I will hve a boatload of questions when I get into programming even though for now, my needs are simple. I value you input ...
by DGrafflin
Wed Jan 31, 2024 12:24 pm
Forum: Sample Code
Topic: ESP32 bin tool dump util ...
Replies: 5
Views: 19134

Re: ESP32 bin tool dump util ...

Thanks. you rock!! looking forward to scrutenizing your book. :D
by DGrafflin
Wed Jan 31, 2024 2:28 am
Forum: General Discussion
Topic: Total Nubbee
Replies: 2
Views: 837

Total Nubbee

Hi people. I am totally new to this plaform. I purchased a ESP32-wroom with a few projects in mind. A programmer I really am not, but would like to know what has the easiest learning curve. I am considering Arduino for its open source and number of experimenters that may help with a couple simple pr...