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OP8666 SD Card

The OP8666 provides a micro SD card slot (on the ControlCARD), which enables communication between the microcontroller and the micro SD card via Serial Peripheral Interface (SPI) interface.
The MicroSD card slot is located on the F28379D controlCARD, which is accessible when the top acrylic cover is removed. Removing the acrylic cover won't void your warranty.

Connections with microcontroller

Signal

Controller Pin Name

Controller Pin


GPIO125

T9

DI

GPIO122

T8

CLK

GPIO124

V8

DO

GPIO123

U8

OPAL-RT TECHNOLOGIES, Inc. | 1751, rue Richardson, bureau 1060 | Montréal, Québec Canada H3K 1G6 | opal-rt.com | +1 514-935-2323