▪
When connected to a typical external SMA antenna, RF performance tests can be
done using cable lines connected to the test instrument.
▪
MTDO, GPIO0, GPIO2 form a 3-bit selectable SDIO mode. Please refer to board
markings for jumper info. Confirm power mode settings are correct by printing log.
!
!
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Demo board has 2 SPI flash: flash1 and flash2 used as storage for firmware
application development. Flash can be selected via jumper, CS high (H) to disable
the flash.
Flash1: Use SDIO connection, mostly used for standalone mode.
Flash2: Use HSPI connection (multiplexing GPIO port). Mainly used in SIP mode,
the SDIO (SPI) for external MCU, GPIO port multiplexing with HSPI to connect to
flash.
!
!
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