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136 lines
3.6 KiB
136 lines
3.6 KiB
/***************************************************************************
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* ARM Stack Unwinder, Michael.McTernan.2001@cs.bris.ac.uk
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* Updated, adapted and several bug fixes on 2018 by Eduardo José Tagle
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*
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* This program is PUBLIC DOMAIN.
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* This means that there is no copyright and anyone is able to take a copy
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* for free and use it as they wish, with or without modifications, and in
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* any context, commercially or otherwise. The only limitation is that I
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* don't guarantee that the software is fit for any purpose or accept any
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* liability for it's use or misuse - this software is without warranty.
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***************************************************************************
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* File Description: Utility functions to access memory
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**************************************************************************/
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#if defined(__arm__) || defined(__thumb__)
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#include "unwmemaccess.h"
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/* Validate address */
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#ifdef ARDUINO_ARCH_SAM
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// For DUE, valid address ranges are
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// SRAM (0x20070000 - 0x20088000) (96kb)
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// FLASH (0x00080000 - 0x00100000) (512kb)
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//
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#define START_SRAM_ADDR 0x20070000
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#define END_SRAM_ADDR 0x20088000
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#define START_FLASH_ADDR 0x00080000
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#define END_FLASH_ADDR 0x00100000
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#endif
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#ifdef TARGET_LPC1768
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// For LPC1769:
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// SRAM (0x10000000 - 0x10008000) (32kb)
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// FLASH (0x00000000 - 0x00080000) (512kb)
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//
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#define START_SRAM_ADDR 0x10000000
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#define END_SRAM_ADDR 0x10008000
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#define START_FLASH_ADDR 0x00000000
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#define END_FLASH_ADDR 0x00080000
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#endif
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#if 0
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// For STM32F103CBT6
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// SRAM (0x20000000 - 0x20005000) (20kb)
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// FLASH (0x00000000 - 0x00020000) (128kb)
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//
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#define START_SRAM_ADDR 0x20000000
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#define END_SRAM_ADDR 0x20005000
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#define START_FLASH_ADDR 0x00000000
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#define END_FLASH_ADDR 0x00020000
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#endif
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#ifdef __STM32F1__
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// For STM32F103ZET6/STM32F103VET6
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// SRAM (0x20000000 - 0x20010000) (64kb)
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// FLASH (0x00000000 - 0x00080000) (512kb)
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//
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#define START_SRAM_ADDR 0x20000000
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#define END_SRAM_ADDR 0x20010000
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#define START_FLASH_ADDR 0x00000000
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#define END_FLASH_ADDR 0x00080000
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#endif
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#ifdef STM32F7
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// For STM32F765 in BORG
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// SRAM (0x20000000 - 0x20080000) (512kb)
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// FLASH (0x08000000 - 0x08100000) (1024kb)
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//
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#define START_SRAM_ADDR 0x20000000
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#define END_SRAM_ADDR 0x20080000
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#define START_FLASH_ADDR 0x08000000
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#define END_FLASH_ADDR 0x08100000
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#endif
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#ifdef __MK64FX512__
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// For MK64FX512 in TEENSY 3.5
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// SRAM (0x1FFF0000 - 0x20020000) (192kb)
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// FLASH (0x00000000 - 0x00080000) (512kb)
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//
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#define START_SRAM_ADDR 0x1FFF0000
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#define END_SRAM_ADDR 0x20020000
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#define START_FLASH_ADDR 0x00000000
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#define END_FLASH_ADDR 0x00080000
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#endif
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#ifdef __MK66FX1M0__
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// For MK66FX1M0 in TEENSY 3.6
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// SRAM (0x1FFF0000 - 0x20030000) (256kb)
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// FLASH (0x00000000 - 0x00140000) (1.25Mb)
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//
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#define START_SRAM_ADDR 0x1FFF0000
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#define END_SRAM_ADDR 0x20030000
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#define START_FLASH_ADDR 0x00000000
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#define END_FLASH_ADDR 0x00140000
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#endif
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static bool validate_addr(uint32_t addr) {
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// Address must be in SRAM range
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if (addr >= START_SRAM_ADDR && addr < END_SRAM_ADDR)
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return true;
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// Or in FLASH range
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if (addr >= START_FLASH_ADDR && addr < END_FLASH_ADDR)
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return true;
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return false;
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}
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bool UnwReadW(const uint32_t a, uint32_t *v) {
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if (!validate_addr(a))
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return false;
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*v = *(uint32_t *)a;
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return true;
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}
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bool UnwReadH(const uint32_t a, uint16_t *v) {
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if (!validate_addr(a))
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return false;
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*v = *(uint16_t *)a;
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return true;
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}
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bool UnwReadB(const uint32_t a, uint8_t *v) {
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if (!validate_addr(a))
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return false;
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*v = *(uint8_t *)a;
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return true;
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}
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#endif
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