I can not connect to cortex M3 processor SW DP, however using the same JLink I can connect to cortex M0 processor
J-Link>con
Please specify device / core. <Default>: CORTEX-M3
Type '?' for selection dialog
Device>cortex-m3
Device "CORTEX-M3" selected.
Connecting to target via SWD
Found SW-DP with ID 0x2BA01477
Scanning AP map to find all available APs
AP[1]: Stopped AP scan as end of AP map has been reached
AP[0]: AHB-AP (IDR: 0x24770011)
Iterating through AP map to find AHB-AP to use
AP[0]: Skipped. Invalid implementer code read from CPUIDVal[31:24] = 0x00
Found SW-DP with ID 0x2BA01477
Scanning AP map to find all available APs
AP[1]: Stopped AP scan as end of AP map has been reached
AP[0]: AHB-AP (IDR: 0x24770011)
Iterating through AP map to find AHB-AP to use
AP[0]: Skipped. Invalid implementer code read from CPUIDVal[31:24] = 0x00
****** Error: Could not find core in Coresight setup
Found SW-DP with ID 0x2BA01477
Scanning AP map to find all available APs
AP[1]: Stopped AP scan as end of AP map has been reached
AP[0]: AHB-AP (IDR: 0x24770011)
Iterating through AP map to find AHB-AP to use
AP[0]: Skipped. Invalid implementer code read from CPUIDVal[31:24] = 0x00
Found SW-DP with ID 0x2BA01477
Scanning AP map to find all available APs
AP[1]: Stopped AP scan as end of AP map has been reached
AP[0]: AHB-AP (IDR: 0x24770011)
Iterating through AP map to find AHB-AP to use
AP[0]: Skipped. Invalid implementer code read from CPUIDVal[31:24] = 0x00
Cannot connect to target.
J-Link>con
Please specify device / core. <Default>: CORTEX-M3
Type '?' for selection dialog
Device>cortex-m3
Device "CORTEX-M3" selected.
Connecting to target via SWD
Found SW-DP with ID 0x2BA01477
Scanning AP map to find all available APs
AP[1]: Stopped AP scan as end of AP map has been reached
AP[0]: AHB-AP (IDR: 0x24770011)
Iterating through AP map to find AHB-AP to use
AP[0]: Skipped. Invalid implementer code read from CPUIDVal[31:24] = 0x00
Found SW-DP with ID 0x2BA01477
Scanning AP map to find all available APs
AP[1]: Stopped AP scan as end of AP map has been reached
AP[0]: AHB-AP (IDR: 0x24770011)
Iterating through AP map to find AHB-AP to use
AP[0]: Skipped. Invalid implementer code read from CPUIDVal[31:24] = 0x00
****** Error: Could not find core in Coresight setup
Found SW-DP with ID 0x2BA01477
Scanning AP map to find all available APs
AP[1]: Stopped AP scan as end of AP map has been reached
AP[0]: AHB-AP (IDR: 0x24770011)
Iterating through AP map to find AHB-AP to use
AP[0]: Skipped. Invalid implementer code read from CPUIDVal[31:24] = 0x00
Found SW-DP with ID 0x2BA01477
Scanning AP map to find all available APs
AP[1]: Stopped AP scan as end of AP map has been reached
AP[0]: AHB-AP (IDR: 0x24770011)
Iterating through AP map to find AHB-AP to use
AP[0]: Skipped. Invalid implementer code read from CPUIDVal[31:24] = 0x00
Cannot connect to target.