Help programming WP 34s

[John Galt]

Hi Merlin, welcome to the project!

I hope I can help. If you have not done so already, you may find it helpful to revisit my notes here: [WP-34S] Cable and flashing options for Mac users. With no programming cable, no Windows PC and no desire to get one, the challenges I needed to overcome were almost certainly greater than yours, but I ultimately prevailed. If I could do it, anyone can!

Being greeted with a blank display is certainly frustrating since there is no way to determine whether the calculator is "on" or not. If it doubt press the ON key again, which will ensure it's in the proper state and ready to be programmed.

What test equipment do you have, if any? You don't really need anything, but the ability to measure current would be a big advantage. At the other extreme a digital scope would be a luxury.

(12-22-2019 04:32 AM)merlin04 Wrote:  ... a few seconds after I click the flash button, both say something along the lines of "error connecting."

Let's start at the beginning. What is its exact wording? It's important.