Looking for HP41CX Advice

[Neve]

(08-05-2021 12:56 AM)Monte Dalrymple Wrote:  

(08-04-2021 08:00 PM)Neve Wrote:  As I wrote in my previous post, even with a MEMORY LOST, MMU CLEARED and disabled, TURBO 0, it’s still slower.
It’s hard to describe, but it looks like the display is popping up in a spongy way, or rather “fading in”, if that makes any sense; whereas the CX is almost instantaneously showing up.

I could almost describe it as a capacitor slowly charging up, whereas on the CX the charge seems instantaneous.

The YFNZ power-on polling point code is about 75 instructions, or roughly 12mS. The LCD bias voltages in the 41CL are generated using low-power op-amps (for source/sink operation) and I optimized for power consumption rather than speed. I suppose that it is possible that these bias voltages (1.1V and 2.2V) might be slower to reach their final values than in the original HP-41, but it's not something that I cared about or ever investigated.

Thanks Monte. Indeed this is neither important nor impairing anything. That was just something I noticed.