Zeno Tip Reset Update
by on Dec.12, 2010, under Matt's Projects
Our reset Zeno tips have been working just fine for over a year now without any ill effects. There has been no noticeable change in the performance of the tip.
I would recommend that you backup your tip’s EEPROM before trying to reset it. That way you will have a backup in the event the macro’s below do not work. If you have a brand new tip I would advise you dump its contents before any uses. You can dump your tips contents with the following command at the “I2C>” prompt: [0xA1 r:127] To verify that your tip is indeed a 128 byte EEPROM send: [0xA1 r:255] and verify the contents start repeating at the 128 byte mark.
I have updated the macros to work with Bus Pirate firmware v5.10. With the old 60 count macro on newer BP firmware there seemed to be an issue with turning on the pull-ups before the power supplies, although I never fully investigated it. Also, the macros will not auto run TeraTerm. You must load the macro after you are already connected to the Bus Pirate. Thanks to Ben McClosky for the 90 count tip data dump!
Also, buy your Bus Pirate from one of Dangerous Prototypes distributors. I bought my second BP from Sparkfun not realizing that none of the proceeds went to Dangerous Prototypes.