8.10.00 J-TRACE ARM Segger Microcontroller Systems, 8.10.00 J-TRACE ARM Datasheet - Page 198

• Manufacturer Part Number: 8.10.00 J-TRACE ARM
• Description: JTAG EMULATOR ARM7/ARM9 ETM
• Manufacturer: Segger Microcontroller Systems
• Type: Emulatorr

Specifications of 8.10.00 J-TRACE ARM

• Contents: Emulation Module
• For Use With/related Products: ARM7, ARM9
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 899-1006

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9.5
9.5.1
9.5.2
J-Link / J-Trace (UM08001)
The heart of J-Link / J-Trace is a microcontroller. The firmware is the software exe-
cuted by the microcontroller inside of the J-Link / J-Trace. The J-Link / J-Trace firm-
ware sometimes needs to be updated. This firmware update is performed
automatically as necessary by the JLinkARM.dll.
Every time you connect to J-Link / J-Trace, JLinkARM.dll checks if its embedded firm-
ware is newer than the one used the J-Link / J-Trace. The DLL will then update the
firmware automatically. This process takes less than 3 seconds and does not require
a reboot.
It is recommended that you always use the latest version of JLinkARM.dll.
In the screenshot:
•
•
Downdating J-Link / J-Trace is not performed automatically through an old
JLinkARM.dll.
using older versions of the JLinkARM.dll.
Note:
risk!
Note:
not execute properly with newer hardware versions.
To downdate J-Link / J-Trace, you need to invalidate the current J-Link / J-Trace firm-
ware, using the command exec InvalidateFW .
In the screenshot, the red box contains information about the formerly used J-Link /
J-Trace firmware version.
J-Link / J-Trace firmware
The red box identifies the new firmware.
The green box identifies the old firmware which has been replaced.
Firmware update
Invalidating the firmware
Downdating J-Link / J-Trace is not recommended, you do it at your own
Note also the firmware embedded in older versions of JLinkARM.dll might
J-Link / J-Trace will continue using its current, newer firmware when
CHAPTER 9
© 2004-2011 SEGGER Microcontroller GmbH & Co. KG
Background information