;; reset MCU
r
;; select first JTAG device
config 0,0

;; JLink.exe should have cleared the read-protect bits by now
;; HOWEVER: clearing the read-protect bits doesn't clear the SPRMOD bit
;; We need a BB->AA transition on the read-protect to clear SPRMOD

;; check current status
mem32 40023C18,1
mem32 40023C14,1

;;write option bytes keycode
w4 40023c08,08192A3B
w4 40023c08,4C5D6E7F

;; turn on SPRMOD and read-protect
w4 40023c18,8FFF0000
w4 40023c14,8FFFBBE0
;; write and wait for write to finish
w4 40023c14,8FFFBBE2
sleep 500
;; verify not busy and bits written
mem32 40023C0C,1
mem32 40023C18,1
mem32 40023C14,1

;; turn off SPRMOD and read-protect
w4 40023c18,0FFF0000
w4 40023c14,0FFFAAE0
;; write and wait for write to finish
w4 40023c14,0FFFAAE2
sleep 20000
;; verify not busy and bits written
mem32 40023C0C,1
mem32 40023C18,1
mem32 40023C14,1

;; lock option bytes
w4 40023c14,0FFFAAE1

;; end script
exit