uC/OSII移植步骤 作者： 时间：2016-10-08 来源：网络 加入技术交流群 扫码加入和技术大咖面对面交流海量资料库查询 收藏 <a href='https://ad.eepw.com.cn/www/delivery/ck.php?n=a635e61e&cb=INSERT_RANDOM_NUMBER_HERE' target='_blank'><img src='https://ad.eepw.com.cn/www/delivery/avw.php?zoneid=88&cb=INSERT_RANDOM_NUMBER_HERE&n=a635e61e' border='0' alt='' /></a> <a href='https://ad.eepw.com.cn/www/delivery/ck.php?n=a576c0a2&cb=INSERT_RANDOM_NUMBER_HERE' target='_blank'><img src='https://ad.eepw.com.cn/www/delivery/avw.php?zoneid=87&cb=INSERT_RANDOM_NUMBER_HERE&n=a576c0a2' border='0' alt='' /></a> ; Move task's R1-R3 from IRQ stack to SVC stackSTMFDSP!, {R4-R6}STMFDSP!, {R0}; Push task's R0onto task's stackSTMFDSP!, {R3}; Push task's CPSR (i.e. IRQ's SPSR)LDRR0,OS_IntNesting; OSIntNesting++;LDRBR1, [R0]ADDR1, R1,#1STRBR1, [R0]CMPR1, #1; if (OSIntNesting == 1) {BNEOS_CPU_IRQ_ISR_1 上一页 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 下一页
加入技术交流群
评论