Mass erase before flashing softdevice

Author: sandeepmistry

platform.txt

@@ -128,4 +128,4 @@ tools.openocd.erase.pattern=
 
 tools.openocd.bootloader.params.verbose=-d2
 tools.openocd.bootloader.params.quiet=-d0
-tools.openocd.bootloader.pattern="{path}/{cmd}" {bootloader.verbose} -f interface/{program.interface}.cfg -c "{program.setup_command}" -f target/{upload.target}.cfg -c "program {{{runtime.platform.path}/cores/nRF5/SDK/components/softdevice/{softdevice}/hex/{softdevice}_{upload.target}_{softdeviceversion}_softdevice.hex}} verify reset; shutdown;"
+tools.openocd.bootloader.pattern="{path}/{cmd}" {bootloader.verbose} -f interface/{program.interface}.cfg -c "{program.setup_command}" -f target/{upload.target}.cfg -c "init; halt; nrf51 mass_erase; program {{{runtime.platform.path}/cores/nRF5/SDK/components/softdevice/{softdevice}/hex/{softdevice}_{upload.target}_{softdeviceversion}_softdevice.hex}} verify reset; shutdown;"