Tinker Board (RK3288) & J-Link connection attempts

rk3288-timmy.JLinkScript

void InitTarget(void) {
  JLINK_SYS_Report("Hello SEGGER JLINK");
  CPU = CORTEX_A17;
  /* DAP configuration */
  CORESIGHT_CoreBaseAddr = 0xFFBB0000;
  /* Manually configure which APs are present on the CoreSight device */
  CORESIGHT_AddAP(1, CORESIGHT_AHB_AP);
  CORESIGHT_AddAP(0, CORESIGHT_APB_AP);
}

With JLinkScript

$ ./JLinkExe -JLinkScriptFile rk3288-timmy.JLinkScript
SEGGER J-Link Commander V6.62d (Compiled Mar  2 2020 09:23:45)
DLL version V6.62d, compiled Mar  2 2020 09:23:31

Connecting to J-Link via USB...O.K.
Firmware: J-Link V11 compiled Jan  7 2020 16:52:13
Hardware version: V11.00
S/N: 261002253
License(s): FlashBP, GDB
OEM: SEGGER-EDU
VTref=3.361V


Type "connect" to establish a target connection, '?' for help
J-Link>connect
Please specify device / core. <Default>: CORTEX-A17
Type '?' for selection dialog
Device>
Please specify target interface:
  J) JTAG (Default)
  S) SWD
  T) cJTAG
TIF>
Device position in JTAG chain (IRPre,DRPre) <Default>: -1,-1 => Auto-detect
JTAGConf>
Specify target interface speed [kHz]. <Default>: 4000 kHz
Speed>
Device "CORTEX-A17" selected.


Connecting to target via JTAG
InitTarget() start
Hello SEGGER JLINK
InitTarget() end
TotalIRLen = 4, IRPrint = 0x01
JTAG chain detection found 1 devices:
 #0 Id: 0x5BA00477, IRLen: 04, CoreSight JTAG-DP
AP map detection skipped. Manually configured AP map found.
AP[0]: APB-AP (IDR: Not set)
AP[1]: AHB-AP (IDR: Not set)
Iterating through AP map to find APB-AP to use
AP[0]: APB-AP found
Settings mismatch... core selected: Cortex-A17, core identified: unknown core
InitTarget() start
Hello SEGGER JLINK
InitTarget() end
TotalIRLen = 4, IRPrint = 0x01
JTAG chain detection found 1 devices:
 #0 Id: 0x5BA00477, IRLen: 04, CoreSight JTAG-DP

****** Error: Cortex-A/R-JTAG (connect): Could not identify core via peripheral ID registers.
InitTarget() start
Hello SEGGER JLINK
InitTarget() end
TotalIRLen = 4, IRPrint = 0x01
JTAG chain detection found 1 devices:
 #0 Id: 0x5BA00477, IRLen: 04, CoreSight JTAG-DP
InitTarget() start
Hello SEGGER JLINK
InitTarget() end
TotalIRLen = 4, IRPrint = 0x01
JTAG chain detection found 1 devices:
 #0 Id: 0x5BA00477, IRLen: 04, CoreSight JTAG-DP
Cannot connect to target.

Without JLinkScript

$ ./JLinkExe
SEGGER J-Link Commander V6.62d (Compiled Mar  2 2020 09:23:45)
DLL version V6.62d, compiled Mar  2 2020 09:23:31

Connecting to J-Link via USB...O.K.
Firmware: J-Link V11 compiled Jan  7 2020 16:52:13
Hardware version: V11.00
S/N: 261002253
License(s): FlashBP, GDB
OEM: SEGGER-EDU
VTref=3.361V


Type "connect" to establish a target connection, '?' for help
J-Link>connect
Please specify device / core. <Default>: CORTEX-A17
Type '?' for selection dialog
Device>
Please specify target interface:
  J) JTAG (Default)
  S) SWD
  T) cJTAG
TIF>
Device position in JTAG chain (IRPre,DRPre) <Default>: -1,-1 => Auto-detect
JTAGConf>
Specify target interface speed [kHz]. <Default>: 4000 kHz
Speed>
Device "CORTEX-A17" selected.


Connecting to target via JTAG
TotalIRLen = 4, IRPrint = 0x01
JTAG chain detection found 1 devices:
 #0 Id: 0x5BA00477, IRLen: 04, CoreSight JTAG-DP
Scanning AP map to find all available APs
AP[2]: Stopped AP scan as end of AP map has been reached
AP[0]: APB-AP (IDR: 0x44770002)
AP[1]: AHB-AP (IDR: 0x74770001)
Iterating through AP map to find APB-AP to use
AP[0]: APB-AP found
ROMTbl[0][0]: CompAddr: 80020000 CID: B105100D, PID:04-001BB4AD ROM Table
ROMTbl[1][0]: CompAddr: 80030000 CID: B105900D, PID:04-001BBC0D ???
ROMTbl[1][1]: CompAddr: 80031000 CID: B105900D, PID:04-001BB9AD ???
ROMTbl[1][2]: CompAddr: 80032000 CID: B105900D, PID:04-001BBC0D ???
ROMTbl[1][3]: CompAddr: 80033000 CID: B105900D, PID:04-001BB9AD ???
ROMTbl[1][4]: CompAddr: 80034000 CID: B105900D, PID:04-001BBC0D ???
ROMTbl[1][5]: CompAddr: 80035000 CID: B105900D, PID:04-001BB9AD ???
ROMTbl[1][6]: CompAddr: 80036000 CID: B105900D, PID:04-001BBC0D ???
ROMTbl[1][7]: CompAddr: 80037000 CID: B105900D, PID:04-001BB9AD ???
ROMTbl[1][8]: CompAddr: 80038000 CID: B105900D, PID:04-004BB906 CTI
ROMTbl[1][9]: CompAddr: 80039000 CID: B105900D, PID:04-004BB906 CTI
ROMTbl[1][10]: CompAddr: 8003A000 CID: B105900D, PID:04-004BB906 CTI
ROMTbl[1][11]: CompAddr: 8003B000 CID: B105900D, PID:04-004BB906 CTI
ROMTbl[1][12]: CompAddr: 8003C000 CID: B105900D, PID:04-001BB95C ???
ROMTbl[1][13]: CompAddr: 8003D000 CID: B105900D, PID:04-001BB95C ???
ROMTbl[1][14]: CompAddr: 8003E000 CID: B105900D, PID:04-001BB95C ???
ROMTbl[1][15]: CompAddr: 8003F000 CID: B105900D, PID:04-001BB95C ???
ROMTbl[0][4]: CompAddr: 80043000 CID: B105900D, PID:04-002BB908 CSTF
ROMTbl[0][5]: CompAddr: 80044000 CID: B105900D, PID:04-004BB906 CTI
ROMTbl[0][6]: CompAddr: 80045000 CID: B105F00D, PID:04-000BB101 TSG
ROMTbl[0][7]: CompAddr: 80046000 CID: B105900D, PID:04-004BB912 TPIU
TotalIRLen = 4, IRPrint = 0x01
JTAG chain detection found 1 devices:
 #0 Id: 0x5BA00477, IRLen: 04, CoreSight JTAG-DP

****** Error: Cortex-A/R-JTAG (connect): Could not determine address of core debug registers. Incorrect CoreSight ROM table in device?
TotalIRLen = 4, IRPrint = 0x01
JTAG chain detection found 1 devices:
 #0 Id: 0x5BA00477, IRLen: 04, CoreSight JTAG-DP
TotalIRLen = 4, IRPrint = 0x01
JTAG chain detection found 1 devices:
 #0 Id: 0x5BA00477, IRLen: 04, CoreSight JTAG-DP
Cannot connect to target.