drivers/radio/nrf24l01: Increase startup delay. #953
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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>
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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.