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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PM0214 датащи(PDF) 171 Page - STMicroelectronics |
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PM0214 датащи(HTML) 171 Page - STMicroelectronics |
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171 / 245 page  DocID022708 Rev 4 171/245 PM0214 The STM32 Cortex-M4 instruction set 244 Examples BKPT 0xAB ; Breakpoint with immediate value set to 0xAB (debugger can ; extract the immediate value by locating it using the PC) 3.11.2 CPS Change processor state. Syntax CPSeffect iflags where: • ‘effect’ is one of: IE: Clears the special purpose register. ID: Sets the special purpose register. • ‘iflags’ is a sequence of one or more flags: i: Set or clear PRIMASK. f: Set or clear FAULTMASK. Operation CPS changes the PRIMASK and FAULTMASK special register values. See Exception mask registers on page 22 for more information about these registers. Restrictions The restrictions are: • Use CPS only from privileged software, it has no effect if used in unprivileged software • CPS cannot be conditional and so must not be used inside an IT block. Condition flags This instruction does not change the condition flags. Examples CPSID i ; Disable interrupts and configurable fault handlers (set PRIMASK) CPSID f ; Disable interrupts and all fault handlers (set FAULTMASK) CPSIE i ; Enable interrupts and configurable fault handlers(clear PRIMASK) CPSIE f ; Enable interrupts and fault handlers (clear FAULTMASK) |
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