Emulate 1 Basic feature of M48t58y-70pc1 with STM32 / Pico on a DIP28 socket
Budget: $10 – $100 AUD
Hi,
I'm wanting to emulate just the TIME OUT PUT ONLY of the M48T58Y-70PC1 with a stmxx chip.
The M48Txx is a Timekeeper chip with built in battery, unfortunately chip has an inbuilt battery which runs out over time and then the chip has to be replaced again.... this is obviously not an ideal situation.
2 core parts to the project:
Hardware:
Create a DIP 28 pin breakout board, which the STM32 sits on top of and the pins go to where applicable on the DIP28 of the M48 chip.... .can use either STM32 or Rasp Pico etc, but should be something readily available.
Software:
Referencing the M48t58y-70pc1, the Raspberry Pi will need to emulate the 'read' commands for external device plugging in and getting the 'time', when powered on/up each time it should reference time being '10:00am' each time.... with a date of 22/05/2003
Example for STM32 time code is here....
https://www.keil.com/download/docs/356.asp
Data sheet is attached.
Thanks
I'm wanting to emulate just the TIME OUT PUT ONLY of the M48T58Y-70PC1 with a stmxx chip.
The M48Txx is a Timekeeper chip with built in battery, unfortunately chip has an inbuilt battery which runs out over time and then the chip has to be replaced again.... this is obviously not an ideal situation.
2 core parts to the project:
Hardware:
Create a DIP 28 pin breakout board, which the STM32 sits on top of and the pins go to where applicable on the DIP28 of the M48 chip.... .can use either STM32 or Rasp Pico etc, but should be something readily available.
Software:
Referencing the M48t58y-70pc1, the Raspberry Pi will need to emulate the 'read' commands for external device plugging in and getting the 'time', when powered on/up each time it should reference time being '10:00am' each time.... with a date of 22/05/2003
Example for STM32 time code is here....
https://www.keil.com/download/docs/356.asp
Data sheet is attached.
Thanks