mirror of https://github.com/ARMmbed/mbed-os.git
55 lines
1.9 KiB
C
55 lines
1.9 KiB
C
/* mbed Microcontroller Library
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* Copyright (c) 2017 ARM Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "mbed_toolchain.h"
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/* Code Read Protection
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NONE 0xFFFFFFFF - No code protection.
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CRP1 0x12345678 - Write to RAM command can not access RAM below 0x10000200.
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- Read Memory command: disabled.
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- Copy RAM to Flash command: cannot write to Sector 0.
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- "Go" command: disabled.
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- Erase sector(s) command: can erase any individual sector except
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sector 0 only, or can erase all sectors at once.
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- Compare command: disabled
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CRP2 0x87654321 - Write to RAM command: disabled.
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- Copy RAM to Flash: disabled.
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- Erase command: only allows erase of all sectors.
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CRP3 0x43218765 - Access to chip via the SWD pins is disabled. ISP entry
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by pulling PIO0_1 LOW is disabled if a valid user code is
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present in flash sector 0.
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Caution: If CRP3 is selected, no future factory testing can be
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performed on the device.
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*/
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#if !defined(APPLICATION_ADDR) // Relocate CRP if there is a bootloader.
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#define APPLICATION_ADDR 0
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#endif
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#define CRP_NONE 0xFFFFFFFF
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#define CRP_1 0x12345678
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#define CRP_2 0x87654321
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#define CRP_3 0x43218765
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#ifndef CRP
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#define CRP CRP_NONE
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#endif
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MBED_SECTION(".CRPSection") MBED_USED const long CRP_Key = CRP;
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