NUCLEO_H743ZI: add crash reporting for IAR

Author: bcostm

targets/TARGET_STM/TARGET_STM32H7/TARGET_STM32H743xI/device/TOOLCHAIN_IAR/stm32h743xI.icf

@@ -1,19 +1,30 @@
 // 2MB FLASH (0x200000)
 if (!isdefinedsymbol(MBED_APP_START)) { define symbol MBED_APP_START = 0x08000000; }
 if (!isdefinedsymbol(MBED_APP_SIZE)) { define symbol MBED_APP_SIZE = 0x200000; }
+
 define symbol __intvec_start__     = MBED_APP_START;
 define symbol __region_ROM_start__ = MBED_APP_START;
 define symbol __region_ROM_end__   = MBED_APP_START + MBED_APP_SIZE - 1;
 
 // 128KB DTCM RAM (0x20000)
-// Vector table dynamic copy: 166 vectors = 664 bytes (0x298) to be reserved in RAM
-define symbol __region_RAM_start__ = 0x20000000 + 0x298; // Aligned on 8 bytes
-define symbol __region_RAM_end__   = 0x20000000 + 0x20000 - 1;
+// Vector table dynamic copy: 166 vectors = 664 bytes (0x298) reserved
+// Crash data area: 256 bytes (0x100) reserved
+define symbol __NVIC_start__                  = 0x20000000;
+define symbol __NVIC_end__                    = 0x20000297;
+define symbol __region_CRASH_DATA_RAM_start__ = 0x20000298; // Aligned on 8 bytes
+define symbol __region_CRASH_DATA_RAM_end__   = 0x20000397;
+define symbol __region_RAM_start__            = 0x20000398; // Aligned on 8 bytes
+define symbol __region_RAM_end__              = 0x20000000 + 0x20000 - 1;
 
 // Memory regions
 define memory mem with size = 4G;
 define region ROM_region = mem:[from __region_ROM_start__ to __region_ROM_end__];
 define region RAM_region = mem:[from __region_RAM_start__ to __region_RAM_end__];
+define region CRASH_DATA_RAM_region = mem:[from __region_CRASH_DATA_RAM_start__ to __region_CRASH_DATA_RAM_end__];
+
+// Crash data symbols
+define exported symbol __CRASH_DATA_RAM_START__ = __region_CRASH_DATA_RAM_start__;
+define exported symbol __CRASH_DATA_RAM_END__ = __region_CRASH_DATA_RAM_end__;
 
 // Stack and Heap
 define symbol __size_cstack__ = 0x400; // 1KB