Posted on December 10, 2009 at 12:18 Hi,
I'm doing some trials with an st7liteu09m6 and its ad-converters.
I'm using the internal resonator with an fpu equal to 4mhz.
The adc conversion speed is equal to fpu/2,so 2 mhz.
I have connected a 10k resistor between one of the adc input pin
of the mcu on one side and to the ground the other side.
The problem is that I see about 20mv between the input pin and the resistor when I expect to see about 0 Volts.(It seems a voltage generated by the adc input pin).
What it can be ?
best regards
Spectre
http://picpaste.com/pic.JPG
http://picpaste.com/pic.JPG (take a look at the link because the image tag seems to be not working)
