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[awneil]

@nagaraju

i have some problem with SD card interfacing

You already have a separate thread on that:

SD card interfacing with Q2686rd GSM module using SPI

hi sir, Iam using Q2686RD Gsm module. iam interfacing SD card with Gsm module with SPI Protocal but write command and read commands not success for trying so many times. the commands for write and read (24-write ,17-read) can any one explain what is the problem behind this… thank you in advance.