嵌入式系統建構：開發運作於STM32的韌體程式

STM32 . : 599882 1 : . : < . >. STM32 .. GNU Toolchain OpenOCD . STM32 Flash QEMU .. C . CPU Flash (fetch instruction) . (object file) data section 0 . RAM data section data section . data section RAM .. (memory map) . Flash (program image) (stack) . RAM . Reset .. Reset 3 stage pipeline PC. (program counter PC ) Reset The Definitive Guide To ARM cortex M3 . ( ) Reset ARM. cortex M3 32 . 0x00000000 MSP (Main Stack Point) .. 0x00000004 . PC .. 0x00000004 PC LSB 1 ( ) . (exception handler) LSB 1 . Thumb (Thumb mode) ARM cortex M3 Thumb 2. ARM ( ARM code ARM state) Thumb . The Definitive Guide To ARM cortex M3 .. With the introduction of the Thumb 2 instruction set, it is now possible to handle all processing requirements in one operation state. There is no need to switch between the two. In fact, the cortex M3 does not support the ARM code.

Cortex­M3 does not support the ARM code. Even interrupts are now handled with the Thumb state. (Previously, the ARM core entered interrupt handlers in the ARM state.) Since there is no need to switch between states, the Cortex­M3 processor has a number of advantages over

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  Processor, Cortex, 嵌入式系統建構 開發運作於stm32的韌體程式, 嵌入式系統建構, 開發運作於stm32的韌體程式, M3 processor

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