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Problem putting sd card in spi mode

Question asked by saeed abdolinezhad on Oct 31, 2017
Latest reply on Nov 1, 2017 by saeed abdolinezhad

I'm trying to connect an sd card to the stm32f091cct6 microcontroller using FatFs driver. After sending some clock while MOSI and CS are high, I send idle command (CMD0) but receive no response from sd card. I pulled up MISO pin with a 100K resistor and clk pin with a 10K resistor. sd card isn't dead because I tried to communicate with it with another processor (TI ARM cortex M3) and it was a success. I pulled up all signals interally. (I tried different configurations of internal and external pull-ups but nothing happend). This is spi initialization code:


/* SPI Config */
heval_Spi.Instance = EVAL_SPIx;


// PCLK1 = 48MHz
heval_Spi.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_64;
heval_Spi.Init.Direction = SPI_DIRECTION_2LINES;
heval_Spi.Init.CLKPhase = SPI_PHASE_1EDGE;
heval_Spi.Init.CLKPolarity = SPI_POLARITY_HIGH;
heval_Spi.Init.CRCPolynomial = 7;
heval_Spi.Init.DataSize = SPI_DATASIZE_8BIT;
heval_Spi.Init.FirstBit = SPI_FIRSTBIT_MSB;
heval_Spi.Init.TIMode = SPI_TIMODE_ENABLE;
heval_Spi.Init.Mode = SPI_MODE_MASTER;



I've attached spi signals 

yellow: MISO

cyan: CLK

purple: MOSI

blue: CS