Hi felix, Thank you very much, I will use it.
Would you be so kind and give me the source for it? Greets and thanks, ernst mayerhofer 2006/12/18, fhormuth <[EMAIL PROTECTED]>:
Hi, > did anyone ever use an ADC with the foxboard / write a driver for it? I am currently using a 12bit MAX1270 with the FoxBoard, accessing it via three lines on Port B. It is basically just I2C-protocol, and so far I was using the crude user-space bit-banging method. That was straightforward and proved to be simple&stable. With the new gpio-routines in the patched SDK I would expect it to run much faster, of course. At some time I started to write a char device module for the ADC, which simply received one byte with the desired channel number/polarity/range and returned two bytes with the value. I never finished this actually, since I have to access the ADC from within a program that runs with maximum scheduler priority anyway, so there is no point in using a device driver in this case. But to come back to the MAX1270 (or the similar MAX1271): easy to handle, fast, I2C-compatible, 12 Bit resolution, and: you can get it for 0.00 Euro just by requesting a sample (or better: two) through the Maxim webpages. Regards: Felix
-- MfG Ernst Mayerhofer
