openwrt / openwrt/mt76

mt7603 config ANTSEL pins to drive external PA or LNA

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Dominant language
C
Stars
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Forks
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Description

I am using the mt7603 chip, which supports 2 receiving and 2 sending, I found that the chip only outputs a set of driving signals to drive the external PA. The other PA enable signal is not output. How to configure the function of the ANTSEL0 ~ ANTSEL5 pins of mt7603 in the driver to enable it to output the enable signal of the external PA or LNA during transmission and reception. I found the relevant configuration in the eeprom configuration of the chip. If only eeprom is configured, the ANTSEL pin still has no signal.

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Research direction

Start by tracing the MT7603 driver's EEPROM configuration and ANTSEL0–ANTSEL5 handling. Follow how the transmit and receive paths program these pins for external PA/LNA control. Done means the required enable signals are emitted during both transmission and reception, with the behavior validated against the requested configuration.

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Assessment

Tech stack
c
Domain
embedded-iot, networking
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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