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CC2650 "dead" after delete

Other Parts Discussed in Thread: CC2650

Hey guys,

I'm facing a problem with my customized board and the CC2650.

In some situations, after issuing the delete command via IAR 7.4 and I-Jet, the deleting processes is not finished propperly. This means the delete status window in IAR never disappers. (I think IAR is trying to launch the flasher tool. When I quit IAR manually, I'm asked if i want to quit debgging mode - I confirmed with "yes". After that, the controller never answers again via JTAG --> all I get is  "CPU status FAILED", CPU didn't power up.

I sometimes use a coin cell bat, so it's possible that Vcc wasn't stable during the process or couldn't deliver the required current over all the time - that's my assumption why these issues occur.

The question is: Is it possible to "rescue" these devices anyhow after a failed delete process?

Any suggestions or ideas?

Thanks guys, best wishes,

Florian

Full error output from IAR:

Wed Feb 17, 2016 13:36:36: Loaded macro file: C:\Program Files (x86)\IAR Systems\Embedded Workbench 7.2\arm\config\debugger\TexasInstruments\CC26xx.dmac
Wed Feb 17, 2016 13:36:36: Loaded macro file: C:\Program Files (x86)\IAR Systems\Embedded Workbench 7.2\arm\config\flashloader\TexasInstruments\FlashCC26xx.mac
Wed Feb 17, 2016 13:36:36: Loading the I-jet/JTAGjet driver
Wed Feb 17, 2016 13:36:36: Probe: Probe SW module ver 1.40
Wed Feb 17, 2016 13:36:36: Probe: Option: trace(Auto,size_limit=8M)
Wed Feb 17, 2016 13:36:36: Probe: I-jet-Trace SW module ver 1.31
Wed Feb 17, 2016 13:36:36: Probe: Found I-jet, SN=81259
Wed Feb 17, 2016 13:36:43: Probe: Opened connection to I-jet:81259
Wed Feb 17, 2016 13:36:43: Probe: USB connection verified (5603 packets/sec)
Wed Feb 17, 2016 13:36:43: Probe: I-jet, FW ver 4.2, HW Ver:A
Wed Feb 17, 2016 13:36:43: Probe: None or IJET-MIPI10 adapter detected
Wed Feb 17, 2016 13:36:43: Probe: Versions: JTAG=1.64 SWO=1.31 A2D=1.58 Stream=1.40
Wed Feb 17, 2016 13:36:43: EARM v.3.72
Wed Feb 17, 2016 13:36:43: Emulation layer version 3.72
Wed Feb 17, 2016 13:36:43: CPU status FAILED
Wed Feb 17, 2016 13:36:48: INFO: Configuring trace using 'Auto,size_limit=8M' setting ...
Wed Feb 17, 2016 13:36:48: CPU does not have TPIU - SWO cannot be enabled
Wed Feb 17, 2016 13:36:48: LowLevelReset(disabled, delay 200)
Wed Feb 17, 2016 13:36:49: Fatal error: CPU did not power up Session aborted!
Wed Feb 17, 2016 13:36:49: Unloaded macro file: C:\Program Files (x86)\IAR Systems\Embedded Workbench 7.2\arm\config\flashloader\TexasInstruments\FlashCC26xx.mac
Wed Feb 17, 2016 13:36:49: Failed to load flash loader: C:\Program Files (x86)\IAR Systems\Embedded Workbench 7.2\arm\config\flashloader\TexasInstruments\FlashCC26xx.flash
Wed Feb 17, 2016 13:36:50: Loading the I-jet/JTAGjet driver