Hello, this issue has already been reported (http://www.mail-archive.com/[email protected]/msg01197.html), but i managed to get some more information. using a digital oscilloscope, i created some pictures: http://fsing.fs.uni-sb.de/~cpresser/tmp/smt7020/i2cset_0x6a_0xc4_0x9842_ACK_error.jpg
for me, this looks like an error at the ACK bit. the bus seems not to be freed, and hence, the i810 and fs454 output-drivers work against each other, generating a 2Volt level. more images and data (matlab) can be found at http://fsing.fs.uni-sb.de/~cpresser/tmp/smt7020/ any suggestions how to fix this? regards carsten _______________________________________________ i2c mailing list [email protected] http://lists.lm-sensors.org/mailman/listinfo/i2c
