newRPL: [UPDATED April 27-2017] Firmware for testing available for download

[JoJo1973]

Too bad, my experiments with a multimeter shall have to wait my return home... Even if the first tests prove inconclusive I'll repeat them: at least to increase sample size!

(06-24-2016 01:54 PM)Claudio L. Wrote:  First test:

Turn calculator on and measure current consumption (A)

Run this program, then measure current (B).

<< #05600014h 0 POKE >>

Now run this other program, then measure current (C).

<< #05600014h 4 POKE >>

Explanation: This is the speaker port. Normally it's being driven low (A), and the first program forces it to low state (B), so in theory B=A.
The second program drives it high (C). It's expected that (C) > (B), so newRPL leaves the speaker driven low when at sleep, this test will confirm that this is the correct configuration for the 49G+ too.

This is a fun port to play with:

<< 1 1000 START #05600014H DUP PEEK 4 BXOR POKE NEXT >>

Let me know the current values.