Cortex-M3 异常和中断---基于NXP LPC177x/8x（2）
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- UID
- 1029342
- 性别
- 男
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Cortex-M3 异常和中断---基于NXP LPC177x/8x（2）
keil编译器已命名的寄存器变量为：
寄存器 | __asm修饰的字符串 | 处理器 | APSR
| "apsr"
| All processors | CPSR
| "cpsr"
| All processors | BASEPRI
| "basepri"
| Cortex-M3, Cortex-M4 | BASEPRI_MAX
| "basepri_max"
| Cortex-M3, Cortex-M4 | CONTROL
| "control"
| Cortex-M0, Cortex-M1, Cortex-M3, Cortex-M4 | DSP
| "dsp"
| Cortex-M0, Cortex-M1, Cortex-M3, Cortex-M4 | EAPSR
| "eapsr"
| Cortex-M0, Cortex-M1, Cortex-M3, Cortex-M4 | EPSR
| "epsr"
| Cortex-M0, Cortex-M1, Cortex-M3, Cortex-M4 | FAULTMASK
| "faultmask"
| Cortex-M3, Cortex-M4 | IAPSR
| "iapsr"
| Cortex-M0, Cortex-M1, Cortex-M3, Cortex-M4 | IEPSR
| "iepsr"
| Cortex-M0, Cortex-M1, Cortex-M3, Cortex-M4 | IPSR
| "ipsr"
| Cortex-M0, Cortex-M1, Cortex-M3, Cortex-M4 | MSP
| "msp"
| Cortex-M0, Cortex-M1, Cortex-M3, Cortex-M4 | PRIMASK
| "primask"
| Cortex-M0, Cortex-M1, Cortex-M3, Cortex-M4 | PSP
| "psp"
| Cortex-M0, Cortex-M1, Cortex-M3, Cortex-M4 | PSR
| "psr"
| Cortex-M0, Cortex-M1, Cortex-M3, Cortex-M4 | r0 to r12
| "r0" to "r12"
| All processors | r14 or lr
| "r14" or "lr"
| All processors | r13 or sp
| "r13" or "sp" | All processors | r15 or pc
| "r15" or "pc" | All processors | SPSR
| "spsr"
| All processors, apart from Cortex-M series processors. | XPSR
| "xpsr"
| Cortex-M0, Cortex-M1, Cortex-M3, Cortex-M4 |
1.2 开/关异常 1: /** 2: * @brief Set the Fault Mask value 3: * 4: * @param faultMask faultMask value 5: * 6: * Set the fault mask register 7: */ 8: static __INLINE void __set_FAULTMASK(uint32_t faultMask) 9: { 10: register uint32_t __regFaultMask __ASM("faultmask"); 11: __regFaultMask = (faultMask & 1); 12: }
使用__set_FAULTMASK(1)来关闭中断和异常;使用__set_FAULTMASK(0)开启中断和异常. |
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