drivers/radio/nrf24l01: Increase startup delay. #953
Merged
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
According to the datasheet of the NRF240L1 chip, 150 μs startup time is only acceptable when the chip is clocked externally. Most modules use a crystal, which require 1.5 ms to settle. It should be okay to wait more in both cases, for a reliable startup. Signed-off-by: Marcell Pünkösd <punkosdmarcell@rocketmail.com>
dpgeorge
force-pushed
the
fix-nrf24l01-startup-delay
branch
from
b9d9036 to
3e859d2
Compare
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
According to the datasheet of the NRF240L1 chip, 150 μs startup time is only acceptable when the chip is clocked externally. Most modules use crystal, which require 1.5 ms to settle. I think it's okay to wait more in both cases, for a reliable startup.
ref: "6.1.7 Timing Information" in nRF24L01+ datasheet rev. 1.0
Without this patch I couldn't make my module to transmit reliably.