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ulp: document the need to wait for RTC to be ready for wakeup

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Ivan Grokhotkov
2017-12-07 17:11:24 +08:00
parent b6a6973b44
commit ca751648fa
4 changed files with 25 additions and 5 deletions
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2
examples/system/ulp_adc/main/ulp/adc.S
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@@ -105,7 +105,7 @@ exit:
.global wake_up
wake_up:
/* Check if the system can be woken up */
READ_RTC_REG(RTC_CNTL_DIAG0_REG, 19, 1)
READ_RTC_FIELD(RTC_CNTL_LOW_POWER_ST_REG, RTC_CNTL_RDY_FOR_WAKEUP)
and r0, r0, 1
jump exit, eq