| Products > Test Equipment |
| AN8008 US $19, 9999count, 1uV, 0.01uA, 0.01Ohm, 1pF resolution meter |
| << < (134/172) > >> |
| floobydust:
One way to reprogram the EEPROM seems to be using an SOIC-8 clip, around $2 on Ali. Then holding the DMM IC in reset, so it does not drive the EEPROM lines. So you don't have to lift the data/clk pins. Then use the use the programmer of your choice. Like Bus Pirate etc. I use an Arduino with SPI 3.3V level-translator and bit-bang. |
| plazma:
--- Quote from: Crumble on September 29, 2017, 02:44:02 pm --- --- Quote from: Mr. Scram on September 29, 2017, 10:36:15 am ---[...] but all I've found so far is that you need a PICkit programmer. It'd be great to add a temperature option to it. --- End quote --- Where did you find that? ??? As said, it is an EEPROM, and there are more suited programmers for that. I don't think a PICKit will work (but it might, the 'C' versions are EEPROM too). --- End quote --- PicKit works. I used a modified clone. |
| hughtmccullough:
I have just got to grips with the EEPROM programming and this may be of some help to someone else who is new to it. I used the programmer based on the CH341A chip that is available from various Chinese sources. I connected this to the AN8008 with one of those SOIC8 clips that comes with a ribbon cable and adapter board that plugs directly into the programmer ZIF socket. These are the items I am talking about: http://www.ebay.co.uk/itm/CH341A-24-25-Series-EEPROM-Flash-BIOS-USB-Programmer-SOIC8-Clip-On-Board-UK-/162557028178?epid=1390692406&hash=item25d9276752:g:vG8AAOSwCQZZCi3S ...but this is just an example that shows both together, not necessarily the best deal. I followed the procedure given in the Russian thread mentioned several times in this thread in connection with the AN8008. I have attached (I think) the instructions to save you looking them up, along with an English translation of the words. Between the two you can work it out. They are actually for the ZT101/102 but the relevant bits are equally valid for the ZT109=AN8008. They used the PICKIT2. So, that's definitely an option. I use Linux mostly and tried the software available for the CH341A but it didn't work very well. So, I ended up having to use Windows software. There is a description of what to do here: There is also useful information here: https://onetransistor.blogspot.com/2017/08/ch341a-mini-programmer-schematic.html That's about it. You can look through this thread to see what bytes to change for adding/changing functions. It took me a while to get there. I haven't invented anything new and these are just some of the more useful resources that I came across. So, hopefully this might speed up the process for someone else who is new to this. On a private off topic note to Plazma, did you see my questions in the "Pocket Multimeter Shootout! ANENG AN101 vs. Uni-T UT120C vs. Victor VC921" thread? Have you any comments? |
| texaspyro:
Does anybody have the locations for the WP and RESET connections on the AN8008? I have a couple of nice thermocouple calibrators. They let you select a thermocouple type and will output a voltage the simulates what that thermocouple would output for any specified temperature. |
| hughtmccullough:
They are in the attachments I just posted! |
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