|WP 34S and 'dead' HP20B|
Message #1 Posted by Rob Willett on 20 Oct 2011, 6:37 a.m.
I've been lurking here for some time and followed the threads with great interest, it's nice to see other people with the same fascination with HP calcs. I'm a big fan of the HP landscape calcs, specifically the 16C which has earned it's weight in gold on projects. So far I have an HP11C, HP12C, HP15C, HP16C, HP41C, HP41CV, HP17B, HP20S, HP48GX (utter rubbish but that's my view). All mint with manuals and some boxes. The next purchase is an HP10C, so any good versions around let me know.
I was very interested in the WP 34S and have acquired cables, calculator, overlays etc to have a go at creating on.
I have a couple of questions though:
1. Where is the best place to ask for WP 34S support? The sourceforge home page seems light on mailing lists and forums. I don't want to clog up this forum if it's in appropriate.
2. If this is the right place to ask questions. I have one, sorry if it's a bit long but I wanted to ensure I got all the information in and I did look around an awful long time to see if somebody else has had the same problem:
I've downloaded the various WP-34S manuals, zip files docs etc and actually read them before starting work. I just (last week) got a new laptop from work with 64 bit Windows 7 to replace my Windows XP build.
I connected the cables up, loaded up the HL-340 USB/Serial adapter and eventually found a driver that seemed to work. Since I have nothing in the house that uses serial I have no way to prove that the cable and USB adapter actually works even if the Windows tells me it is.
I downloaded and installed SAM-BA 2.10 from the ALTEL website.
I then followed the instructions in the manual of pressing various reset/erase buttons and the HP-20B display went blank.
I tried to launch SAM-BA 2.10 and that went nowhere. I could choose the COM 5 port, the right board but nothing ever happened. Checked Google and not a lot of information but it appears that 64bit Windows 7 is not a likely platform for this to work with SAM-BA 2.10. Somebody suggested SAM-BA 2.6 with XP.
So my intention is to use my VMWare Fusion Windows XP session on my Mac to try and make the connection to the HP-20B and see if that works. This will be fun as the USB/Serial adapter is not recognised by the Mac so not sure what will happen in the Windows XP session. If this fails then I'll try a 32bit Linux session on Windows 7. This is getting rather complicated.
However my real problem is that the HP-20B now displays nothing after putting it into the right mode for flashing, I am assuming this is due to me having erased the memory on the thing. Have I bricked the calculator or can I simply go through the cable key press sequence again and it will be put in the right format? Since I can't see anything at all on the calc siplay, I thought that before each attempt to connect the calculator to SAM-BA I would remove the batteries for 2 minutes, then replace to know that the calculator is starting from a known off state.
Any suggestions or recommendations gratefully appreciated.