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Forum Index : Microcontroller and PC projects : 'click' SD card access

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MustardMan

Senior Member

Joined: 30/08/2019
Location: Australia
Posts: 175

Posted: 02:00am 02 Nov 2019

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Hi,
I would like to use an Explore 100 (rev D1) with an SD card adapter fitted to one of the 'click' expansion ports. The question also applies to connection of an SD card through the CON8 'MAIN I/O' header.

The D1 has on on-board micro-SD slot, and the recommended 5" LCD has a full size SD card slot. These can be accessed without problem using OPTION SDCARD with the appropriate SD-pin parameter (47 on the LCD board, 52 on the base board). The SD card data is transferred using pins 10,11,12 (SCK,MISO,MOSI) on the '470 chip (PIC32MX470F5012L).

The SPI bus on the 'click' interface uses different pins (70,71,72 - SCK,MISO,MOSI respectively).

Can I tell "OPTION SDCARD" to use an alternate SPI port (knowing the '470 has two), or tell it to use a different pin mapping for the same SPI port?

Cheers,

matherp
Guru

Joined: 11/12/2012
Location: United Kingdom
Posts: 10573

Posted: 06:15pm 02 Nov 2019

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The answer is no. The SPI port for the SDcard is fixed

MustardMan

Senior Member

Joined: 30/08/2019
Location: Australia
Posts: 175

Posted: 07:58pm 02 Nov 2019

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Thanks.

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