NP-41 Emulator (may be)

[jch]

(01-25-2016 07:03 PM)Chris Chung Wrote:  It is, though, possible to add a SD card reader to the system to make available ROM images.

I was almost asking for this kind of extension, but after looking at the MCU specs, especially available RAM, I didn't dare.
Wasn't your first design based on MSP430FR family ? Much more, hum... FRAM.

(01-25-2016 07:03 PM)Chris Chung Wrote:  However I will be very interested to know what potential users want and see if additional requirements can be implemented.

HP-IL ? even on serial port ?

(01-25-2016 01:30 PM)Chris Chung Wrote:  It has potential to double the speed by running at 16Mhz vs 8Mhz, but that I need to throw in 2 x 3V coin cell and have a regulator. Not sure If I want to do that.

While I was looking at the MCU specs, I also read the speed vs voltage curves.
3.6V, something like a Lithium Thionyl Chloride battery ?
Though not a coin cell, but with optionnal connector, you could also extend runtime, and thickness too :-(.

Jean-Christophe.