Hi to all.
I am going to use a 3.3 Volts powered PIC that should read and write data on a Secure Digital card.
Do somebody knows if the SPI_DOUT SPI_DIN SPI_CLK and SPI_CS lines can be directly connected to the SD card or they need a pull-up?
Both the PIC and the SD card are 3.3V powered.
Thank you in advance
PIC driving SD card
Moderators: David Barker, Jerry Messina
Requests on pull up schematics
Dear matteo and ohararp,
I have run into problems of interfacing a SD Card to my 18F2525. The two runs on different voltages so there is a voltage divider in between; schematic just exactly like Steven's wavplayer project (posted in the Wiki).
Can any of you show me any schematic of how to put those pull-up resistors, and what R values to use?
Thanks.
Regards,
Liak
I have run into problems of interfacing a SD Card to my 18F2525. The two runs on different voltages so there is a voltage divider in between; schematic just exactly like Steven's wavplayer project (posted in the Wiki).
Can any of you show me any schematic of how to put those pull-up resistors, and what R values to use?
Thanks.
Regards,
Liak