修改内核文件 core_cm3.c文件- uint32_t __STREXB(uint8_t value, uint8_t *addr)
- {
- uint32_t result=0;
-
- //__ASM volatile ("strexb %0, %2, [%1]" : "=r" (result) : "r" (addr), "r" (value) );
- __ASM volatile ("strexb %0, %2, [%1]" : "=&r" (result) : "r" (addr), "r" (value) );
- return(result);
- }
- /**
- * [url=home.php?mod=space&uid=247401]@brief[/url] STR Exclusive (16 bit)
- *
- * @param value value to store
- * @param *addr address pointer
- * [url=home.php?mod=space&uid=266161]@return[/url] successful / failed
- *
- * Exclusive STR command for 16 bit values
- */
- uint32_t __STREXH(uint16_t value, uint16_t *addr)
- {
- uint32_t result=0;
-
- //__ASM volatile ("strexh %0, %2, [%1]" : "=r" (result) : "r" (addr), "r" (value) );
- __ASM volatile ("strexh %0, %2, [%1]" : "=&r" (result) : "r" (addr), "r" (value) );
- return(result);
- }
- /**
- 1. @brief STR Exclusive (32 bit)
- 2. 3. @param value value to store
- 3. @param *addr address pointer
- 4. @return successful / failed
- 5. 7. Exclusive STR command for 32 bit values
- */
- uint32_t __STREXW(uint32_t value, uint32_t *addr)
- {
- uint32_t result=0;
-
- //__ASM volatile ("strex %0, %2, [%1]" : "=r" (result) : "r" (addr), "r" (value) );
- __ASM volatile ("strex %0, %2, [%1]" : "=&r" (result) : "r" (addr), "r" (value) );
- return(result);
- }
| 
楼主
