Hello, we are attempting to wire up our product to the UMTS<E-EVB-KIT. I have reviewed all the user guide documentation and have a few questions.
- We would like to wire our pwr_key control signal from our product, not use the switch (S302) on the EVB. I found the testpoint header J803 has a PWKEY_3V, but it has no signal and appears like a NC in regards to the actual pwr_key. Is there somewhere on the EVB we can tie into this?
- We would also like to wire the TTL uart from our product directly to the dev kit instead of via the 3V/RS232 translators. Can we simply hook directly to the J806 RX/TX 1.8v lines without deactivating the 3V and RS232 level shifters somehow to avoid contention on those lines?
- Are schematics available for the EVB to assist?