esp-idf/examples/system/ulp/main/ulp/wake_up.S

17 lines
408 B
ArmAsm

/* ULP assembly files are passed through C preprocessor first, so include directives
and C macros may be used in these files
*/
#include "soc/rtc_cntl_reg.h"
#include "soc/soc_ulp.h"
.global wake_up
wake_up:
/* Check if the system can be woken up */
READ_RTC_FIELD(RTC_CNTL_LOW_POWER_ST_REG, RTC_CNTL_RDY_FOR_WAKEUP)
and r0, r0, 1
jump wake_up, eq
/* Wake up the SoC, end program */
wake
halt