In SX Microcontrollers, SX/B Compiler and SX-Key Tool, djh82uk wrote:

Hiya

Ha ha, did not think i mentioned that, but yes I have an ex-MOD multimeter with nixie tubes etc, has pressure relase valves and warm up circuit, very accurate, tho in this case I am using a normal digital multimeter, although I have a 5kv HT meter here too, tho never used it and prb never will (a good thing)

Right, i changed resitors, I found some that were 10k, (brown, black, red, gold) and also showed as 9.98k on multimeter,

Wired them as the diagrame (the one with the red x's) on a breadboard completley away from the sx, gave it 5v, and I get 5, 4.8v and 4.9v at the 3 possible test points on the resistors, so I then used these resistors on the sx board to replace the others, the sx is giving out 5v at the pin into one end of the resistors in series, and im giving it 5v at the other end, shows as 0v in the middle tho, and so RA.0 is also getting 0v, hence the lack of a reading.  Perhaps i should describe the circuit, fresh eyes and all that.

RA.1 is connected to a resistor, connected to the other end of that is another resistor, on the end of that is the possitive connection of the voltage i wish to measure.

RA.0 is connected to the junction between the 2 resistors, , as is one leg of the cap, the other end of the cap is connected to the ground of the voltage I was to measure, as well as the ground of the sx protoboard (VSS).

I am soldering to the protoboard and not using any pads that are connected to anything else.

Thanks for your patience, sorry if I sound stupid, I am useless with electronics theory, something I really need to brush up on when I have time.  Yet I can troubleshoot problems on games consoles, psu's etc, down to component level, im self taught which is prob not a good thing.

DJH

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