Alternate SPI (pins 24–27, 13, 135) usability with GNSS on EC200U-EU AA

IoT Modules LTE Standard Module
1

Hello,
I have a Quectel EC200U-EU AA module and I need to use external SPI flash while the GNSS function is enabled.

I know the primary SPI (pins 37–40) is disabled when GNSS is active.
I see that pins 24–27, 13, 135 can be multiplexed as a secondary SPI according to the QuecOpen Hardware Design V1.0.

My questions:

  1. Can I use the alternate SPI (pins 24–27) for an external flash while GNSS is active on this variant?
  2. Are there any firmware restrictions for EC200U-EU AA that prevent the alternate SPI from working when GNSS is enabled?
  3. Any recommended examples or demos to test SPI with GNSS active?

Thank you for your guidance!

2

@Raphael-Q Please assist in handling this issue.