Page 15 - ARMMbedOS物聯網實戰應用超入門

ARM Mbed OS 物聯網實戰應用超入門

3 Ꮠ͜ ARM 180ULL Ҧஔٙཥ๕၍ଣʈՈ̍€PMKၾᅺ๟ఊʩࢫdԸ
౤Զ൴Эऊঃ̌ଟٙွेਗЪd᎑࿒̌ঃމ 0.96uWeਗ࿒̌ଟঃཥ

̥ࠅ 16.36uW/MHzfΝࣛϞɧᄴܸٙ˿ݴ˥ᇞ€Pipelinedࣖଟ̙
༺Ց 0.9DMIPS/MHzdՉʕ DMIPS މӊ߆ੂБϵຬࡈ዆ᅰ༶ၑܸ˿

€DMIPS:Dhrystone Million Instructions Executed Per Secondf
4 ʫўలࢁΣඎʕᓙછՓኜ€NVICd౤Զ 1 ä 32 ࡈʕᓙΣඎeεᄴʕᓙ

Ꮄ΋ഃॴʿҞ஺ʕᓙᚤᏐd̙౤৷ஈଣኜٙˀᏐঐɢၾࣖঐf

5 ʫўఎ፴ʕᓙછՓኜ€WICdආɝွेً࿒ࣛd̙Ԙ஺ਗ਼ࣨːڭܵί൴
Эဍཥً࿒dԨίఎ፴ܝͭуܨూ͍੬ʈЪf

1-1.3 Cortex-M0 暫存器 （初學者可暫時跳過此章節）

Cortex-Mx Ϟஷ͜ᅲπኜeतࣿᅲπኜʿً࿒ᅲπኜdνྡ 1-2 הͪj

R0
R1
R2
R3
Low Registers (低暫存器)
R4
R5
R6 1 General Purpose Registers (通用暫存器)
R7
R8
R9
High Registers (高暫存器) R10
R11
R12
2 Stack Pointer (堆疊指標) SP (R13) PSP MSP
3 Link Register (連結暫存器) LR (R14)
4 Program Counter (程式計數器) PC (R15)

5 PSR Program Status Register (程式狀態暫存器) Special Registers
6 PRIMASK Interrupt Mask Register (中斷優先遮罩暫存器) (特殊暫存器)
7 CONTROL Control Register (控制暫存器)

圖 1-2 Cortex-Mx 暫存器
΢ᅲπኜٙ̌ঐνɨj

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