Dear friends,
I need help to identify the reason why I could not flash EFM8LB12F64E (Laser bee, 8051 core) by means of Segger J-Link Edu.
PC : KEIL uVision v5.14.2.1 on Win-10 OS Board : Custom made board. No problem with Silabs C2 Debugger
.... Project --> Options for Target --> Debug ---> "J-Link / J-Trace EFM8 Driver" SELECTED
.... Project --> Options for Target --> Utilities---> "Use Debug Driver" CHECKED
.... Project --> Options for Target --> Utilities---> "Update Target before Debugging" CHECKED
.... Segger J-Link driver version --> 6.16b
.... Segger J-link functionality --> Checked from command prompt by using jlink commander. The chip EFM8LB12F64E has been erased from command prompt. Jlink can query the EFM8. Following is what I copied from the command prompt screen (Serial number has been replaced by ********* intentionally);
------------------------------------------------------------------ C:\Program Files (x86)\SEGGER\JLink_V616b>jlink SEGGER J-Link Commander V6.16b (Compiled Jun 9 2017 18:04:04) DLL version V6.16b, compiled Jun 9 2017 18:03:30
Connecting to J-Link via USB...O.K. Firmware: J-Link V9 compiled Jun 9 2017 17:27:29 Hardware version: V9.20 S/N: ********* License(s): FlashBP, GDB OEM: SEGGER-EDU VTref = 3.270V
Type "connect" to establish a target connection, '?' for help J-Link> -------------------------------------------------------------------
I don't see any problem regarding installation, wiring, ... etc. May there be some mismatch between corresponding dll and uVision IDE? dll version is 4.97.11.0 (C:\Keil_v5\C51\BIN\JLinkEFM8.dll)
Also, uVision 5 can connect to MCU in debug mode (ctrl + F5), but, cannot flash it. Here are the messages in debug mode; ------------------------------------------------------------------- J-Link info: Device "EFM8LB12F64E" selected. J-Link info: Device "EFM8LB12F64E" selected. J-Link info: DevID, DerivID: 0x34, 0x42 J-Link info: Core: CIP-51 (8051 compatible) J-Link info: Device series: EFM8 series device J-Link info: CPU supports 4 code breakpoints J-Link info: Flash infos: 512 byte sectors, 126 sectors -------------------------------------------------------------------
Can someone help me?
Best regards!
can you do it through Simplicity Studio?
I don't use simplicity studio. :(
Yeah, but the point is to try it to double check if it is a hardware or software issue. But keep scratching your head if that's more productive...
Dear Erik,
J-link EDU works just fine within Simplicity Studio though it weirdly shows different serial number than the one on the label. I confirm it is o.k.