Greetings!
Quick question about the Vcc (Vref) Pin on the J-Link connector.
1. I believe this is actually an input used to set the SWxx pins' signal level. Do I understand this orrectly?
2. Do I need to provide a reference voltage or is there a way to manually set the Vref in the J-Link (i.e., to 3.3 VDC)?
The reason I ask is because I am trying to utilize some spare pins on an existing connector. I have 4 signal pins plus a ground pin available, but no 3.3 VDC ref available.
For the SWD connection I believe I need:
SWDIO
SWCLK
SWO
!RESET
as a minimum set.
Thanks in advance,
Loren
Quick question about the Vcc (Vref) Pin on the J-Link connector.
1. I believe this is actually an input used to set the SWxx pins' signal level. Do I understand this orrectly?
2. Do I need to provide a reference voltage or is there a way to manually set the Vref in the J-Link (i.e., to 3.3 VDC)?
The reason I ask is because I am trying to utilize some spare pins on an existing connector. I have 4 signal pins plus a ground pin available, but no 3.3 VDC ref available.
For the SWD connection I believe I need:
SWDIO
SWCLK
SWO
!RESET
as a minimum set.
Thanks in advance,
Loren