Clarifications with EC200UCN Module SPI with SD card and GNSS

IoT Modules LTE Standard Module
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1

Currently we are working with EC200U-CNAA module, in that we need some clarifications as follows,

          1. Could you confirm us whether we can use the SPI pins by enabling the GNSS module?
          2. If we use the SPI module , Does the functionality of the SD card get affected?

We arise these queries after reviewing the Quectel documents, kindly find the screenshots for reference.

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2

Dear Team,

Please do the needful. We look forward to your response.

3

Dear Quectel Team,

Please do the needful.

4

Hi @Partha

  1. While SPI1 (Pin 37~40) cannot be used with a GNSS enabled module, SPI2 (Pin 24~27 @ Func 2) is still available. You can find them in the GPIO configuration sheet.
  2. See document. However we usually use direct polling for SPI peripherals.
6

Hi Victor,

Thanks for the response.

In the datasheet, SPI2 (Pins 24–27) is labeled as PCM_DIN, PCM_DOUT, PCM_SYNC, and PCM_CLK. Kindly confirm if these pins can be used as SPI for interfacing with the SD card or Flash.

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7

SPI is not for interfacing SD card. You would use SDMMC for that.