Not sure what I'm doing wrong here, I've connected this board the same way as all the other stm32 eval boards using SWD (3.3v, gnd, swdio, swclk, nrst). Any help is greatly appreciated, thanks!
Here's my output running on mac osx:
$/Applications/SEGGER/JLink/JLinkGDBServer -if SWD -device stm32f722ze
SEGGER J-Link GDB Server V6.16i Command Line Version
JLinkARM.dll V6.16i (DLL compiled Jul 21 2017 17:00:59)
Command line: -if SWD -device stm32f722ze
-----GDB Server start settings-----
GDBInit file: none
GDB Server Listening port: 2331
SWO raw output listening port: 2332
Terminal I/O port: 2333
Accept remote connection: yes
Generate logfile: off
Verify download: off
Init regs on start: off
Silent mode: off
Single run mode: off
Target connection timeout: 0 ms
------J-Link related settings------
J-Link Host interface: USB
J-Link script: none
J-Link settings file: none
------Target related settings------
Target device: stm32f722ze
Target interface: SWD
Target interface speed: 1000kHz
Target endian: little
Connecting to J-Link...
J-Link is connected.
Firmware: J-Link ARM V8 compiled Nov 28 2014 13:44:46
Hardware: V8.00
S/N: 58002909
Checking target voltage...
Target voltage: 3.30 V
Listening on TCP/IP port 2331
Connecting to target...ERROR: Specific core setup failed.
ERROR: Could not connect to target.
Target connection failed. GDBServer will be closed...Restoring target state and closing J-Link connection...
Shutting down...
Could not connect to target.
Please check power, connection and settings.
Here's my output running on mac osx:
$/Applications/SEGGER/JLink/JLinkGDBServer -if SWD -device stm32f722ze
SEGGER J-Link GDB Server V6.16i Command Line Version
JLinkARM.dll V6.16i (DLL compiled Jul 21 2017 17:00:59)
Command line: -if SWD -device stm32f722ze
-----GDB Server start settings-----
GDBInit file: none
GDB Server Listening port: 2331
SWO raw output listening port: 2332
Terminal I/O port: 2333
Accept remote connection: yes
Generate logfile: off
Verify download: off
Init regs on start: off
Silent mode: off
Single run mode: off
Target connection timeout: 0 ms
------J-Link related settings------
J-Link Host interface: USB
J-Link script: none
J-Link settings file: none
------Target related settings------
Target device: stm32f722ze
Target interface: SWD
Target interface speed: 1000kHz
Target endian: little
Connecting to J-Link...
J-Link is connected.
Firmware: J-Link ARM V8 compiled Nov 28 2014 13:44:46
Hardware: V8.00
S/N: 58002909
Checking target voltage...
Target voltage: 3.30 V
Listening on TCP/IP port 2331
Connecting to target...ERROR: Specific core setup failed.
ERROR: Could not connect to target.
Target connection failed. GDBServer will be closed...Restoring target state and closing J-Link connection...
Shutting down...
Could not connect to target.
Please check power, connection and settings.