2009-07-01 05:25 AM
unbonded pins
2011-05-17 06:03 AM
How should unbonded pins be configured? For example, Port H0 is on pin 13 of an STM8S208 in the LQFP80 package, but is not present on the LQFP64 package. Should it be setup as an output with a Data value of ''0'' ? Or just ignored?
Paul Smith Indiana University Physics2011-05-17 06:03 AM
Hi Paul,
Some GPIO pins are not available in the small package, the corresponding I/Os are accessible to configure them by software and the configure by default is input floating no external interrupt. Regards mozra2011-05-17 06:03 AM
as you can see, all the port pads that can be unbonded have weak pullup; they are in some way activated by HW (in ST7 this is done by option byte).
hi-z input can't be leaved floating. regards