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nrf/qspi: wait MORE for DPM enter.

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Dario Nieuwenhuis 2021-05-27 00:42:29 +02:00
parent b515170e0a
commit 3bd36dce76
1 changed files with 5 additions and 0 deletions
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embassy-nrf/src/qspi.rs
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@ -255,6 +255,11 @@ impl<'d, T: Instance> Drop for Qspi<'d, T> {
// Unfortunately we must spin. There's no way to do this interrupt-driven. // Unfortunately we must spin. There's no way to do this interrupt-driven.
// The READY event does NOT fire on DPM enter (but it does fire on DPM exit :shrug:) // The READY event does NOT fire on DPM enter (but it does fire on DPM exit :shrug:)
while r.status.read().dpm().is_disabled() {} while r.status.read().dpm().is_disabled() {}
// Wait MORE for DPM enter.
// I have absolutely no idea why, but the wait above is not enough :'(
// Tested with mx25r64 in nrf52840-dk, and with mx25r16 in custom board
cortex_m::asm::delay(4096);
} }
// it seems events_ready is not generated in response to deactivate. nrfx doesn't wait for it. // it seems events_ready is not generated in response to deactivate. nrfx doesn't wait for it.