Segger J-Link User Manual page 229

8.4.4.4 Flash tab
Enable flash programming
This checkbox enables flash programming. Flash programming is needed to use
either flash download or to use flash breakpoints.
If flash programming is enabled you must select the correct flash memory and flash
base address. Furthermore it is necessary for some chips to enter the correct CPU
clock frequence.
Cache flash contents
If enabled, the flash contents is cached by the J-Link RDI software to avoid reading
data twice and to speed up the transfer between debugger and target.
Allow flash download
This allows the J-Link RDI software to download program into flash. A small piece of
code will be downloaded and executed in the target RAM which then programs the
flash memory. This provides flash loading abilities even for debuggers without a
build-in flash loader.
An info window can be shown during download displaying the current operation.
Depending on your JTAG speed you may see the info window only very short.
J-Link / J-Trace (UM08001) © 2004-2013 SEGGER Microcontroller GmbH & Co. KG
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