Questions tagged [sdcard]

5 questions
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SD Card re initialization using fatfs on stm32f103RB

I am using a SD Card Module that has no pin for checking existence of SD Card, So i should do the check using fatfs libs. The micro-controller is STM32F103RB and i'am using SPI protocol to communicate with SD Card. Up to now i can detect a removal…
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SIMCom SIM808 SD card problem

I am working with SIMCom's SIM808 2G+GPS modem and trying to connect it to an SD card. I am following SIMCom hardware design docs, to save some data in SD memory. The problem is: when I send command "AT+SD2PCM=1" to the module, it returns ERROR…
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What mode of SPI is the standard if nothing regarding the mode is mentioned in the slave datasheet?

I am trying to bit bang SPI for a SD Card, I went through this SD Card datasheet and I couldn't find any information regarding the mode that needs to be used. If I missed, please point it out. Else what mode would be standard if nothing is…
MaNyYaCk
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SD card single write block

I'm presently writing the code for SAMD20 micro-controller and SDCard. I'v successfully written code for single block read and multi block successfully. I'm testing my code with San-disk 16 GB SDCard with HC-1 specs. I'm stuck with writing the code…
ragdarbari
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How can I read/write bytes to SD card slot of MC60A?

I am working on a clickBoard with MC60 A GSM module from MikroEletronika company. This clickBoard has two slots: (1) one for SIM card and another (2) for micro SD cards. I have read all the available documentation: AT commands user guide manual…