Diff: targets/TARGET_NXP/TARGET_LPC176X/device/CRP.c

Revision:

177:447f873cad2f

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/TARGET_NXP/TARGET_LPC176X/device/CRP.c	Wed Oct 25 14:53:38 2017 +0100
@@ -0,0 +1,54 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2017 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *	 http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+ 
+ #include "mbed_toolchain.h"
+
+ /* Code Read Protection
+
+NONE	0xFFFFFFFF - No code protection.
+
+CRP1    0x12345678 - Write to RAM command can not access RAM below 0x10000200.
+                   - Read Memory command: disabled.
+                   - Copy RAM to Flash command: cannot write to Sector 0.
+                   - "Go" command: disabled.
+                   - Erase sector(s) command: can erase any individual sector except 
+                   	 sector 0 only, or can erase all sectors at once.
+                   - Compare command: disabled
+
+CRP2    0x87654321 - Write to RAM command: disabled.
+                   - Copy RAM to Flash: disabled.
+                   - Erase command: only allows erase of all sectors.
+
+CRP3    0x43218765 - Access to chip via the SWD pins is disabled. ISP entry
+                     by pulling PIO0_1 LOW is disabled if a valid user code is
+                     present in flash sector 0.
+Caution: If CRP3 is selected, no future factory testing can be
+performed on the device.
+*/
+#if !defined(APPLICATION_ADDR) // Relocate CRP if there is a bootloader.
+    #define APPLICATION_ADDR 0
+#endif
+
+#define CRP_NONE	0xFFFFFFFF
+#define CRP_1		0x12345678 
+#define CRP_2		0x87654321
+#define CRP_3		0x43218765
+
+#ifndef CRP
+#define CRP CRP_NONE
+#endif
+
+MBED_SECTION(".CRPSection") MBED_USED const long CRP_Key = CRP;