Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/ARM/CMSDK_CM3/FPGAIO/LED#0x0
LED0=Off, LED1=Off
LED Connections
0 (Off): LED is off
1 (On): LED is on
https://github.com/cmsis-svd/cmsis-svd-data