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bugfix: workaround for CPU stuck due to DBUS request blocking when fetching unaligned instructions in LP_RAM

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wuzhenghui
2023-02-28 20:04:30 +08:00
parent 51777a6862
commit 975a53aee1
1 changed files with 6 additions and 1 deletions
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7
components/esp_hw_support/sleep_wake_stub.c
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@@ -11,6 +11,7 @@
#include "esp_attr.h" #include "esp_attr.h"
#include "esp_sleep.h" #include "esp_sleep.h"
#include "esp_cpu.h"
#include "soc/soc.h" #include "soc/soc.h"
#include "soc/rtc.h" #include "soc/rtc.h"
@@ -77,7 +78,11 @@ void RTC_IRAM_ATTR esp_wake_stub_sleep(esp_deep_sleep_wake_stub_fn_t new_stub)
#endif #endif
// A few CPU cycles may be necessary for the sleep to start... // A few CPU cycles may be necessary for the sleep to start...
while (true) {}; #if __XTENSA__
xt_utils_wait_for_intr();
#else
rv_utils_wait_for_intr();
#endif // __XTENSA__
// never reaches here. // never reaches here.
} }