|
В DS на Atmega написанно:
Note that the internal
pull-ups in the AVR pads can be enabled by setting the PORT bits corresponding to
the SCL and SDA pins, as explained in the I/O Port section. The internal pull-ups can in
some systems eliminate the need for external ones.
У нас расстояние от Atmega до DS1307 30-40mm.Других slave нет.
Поделитесь реальным опытом.
E-mail: info@telesys.ru