Hello, oh I just realised that there was in fact a bit shifting error in the "readADC()" routine. Embarassing. I did not see it the whole day. OK now the data is correctly transferred into the PIC, next thing to check will be the multiplication (because the values are still off by about 20V). Or this might be due to the external crappy reference voltage:
There is no point in using the external reference, I know. I think I confused the MAX1242 with the MAX1243 who does not have an internal reference. This Nixie voltmeter is only a prototype, in the final version I will probably go for the internal ref. I will have to check if I have some resistors at home that will work with the 2.5V. I'll let you know if I have further success, many things to check now. Thanks for the ideas! Thanks a lot, Jens -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to neonixi...@googlegroups.com. To unsubscribe from this group, send email to neonixie-l+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
