It seems that J-Flash does not have correct defaults for flashing the Hilscher netX90_Com device.
It attempts to use target RAM settings of Addr: 0x20000 and Size: 128KB, but this does not appear to a valid RAM address on this device, and flashing with these settings fails with the following error:
The settings used by the OpenOCD config provided by Hilscher are as follows for both COM and APP cores:
configure -work-area-phys 0x00040000 -work-area-size 0x4000 -work-area-backup 1
I believe, then the correct settings for J-Link tools should be Addr: 0x40000 and Size: 16KB
It attempts to use target RAM settings of Addr: 0x20000 and Size: 128KB, but this does not appear to a valid RAM address on this device, and flashing with these settings fails with the following error:
The settings used by the OpenOCD config provided by Hilscher are as follows for both COM and APP cores:
configure -work-area-phys 0x00040000 -work-area-size 0x4000 -work-area-backup 1
I believe, then the correct settings for J-Link tools should be Addr: 0x40000 and Size: 16KB