![]() ![]() Important: SDO and SDI are the pin names from the SD-card point of view, i.e. The pins on the connector SV1 need to be connected to the microcontroller pins. ![]() Here the schematic of the SD-Card module with the voltage level translation. Due to that, I used a 74AC125 buffer to do the level translation which works more reliable than the voltage divider. This will work, but at higher SPI speeds this might cause problems. There are a lot of examples available in the web where a voltage divider with resistors is used to translate the 5V signals to 3.3V. Hence a voltage level translation is required for the SD-card inpus (SDI, SCK, CS). 3.6V while the 18F PICs usually operate at 5V. SD-cards can be interfaced to a microcontroller via SPI-Bus, hence only 4 I/O pins (SDI, SDO, SCK, CS) are required to connect the SD-card to the PIC. All modifications are described in the following article. So I searched the web and found some required changes to make it work. Unfortunately, the example didn’t work properly for me. It is based on the example MMC/SD-Card driver (mmcsd.c) and FAT file system driver (fat.c) delivered with the CCS C compiler. This project shows how to use a SD-Card with FAT16 file system. Online Schematic and Circuit Diagram Tool.Microcontrollers and other Microchip devices Search tool.Find debuggers, programmers, compilers, adapters, socket modules and other accessories for your product.Pic16f877 based projects PIC Microcontroller PDF.Pic16f72 microcontroller based Project List” is locked Pic16f72 microcontroller based Project List.Online Courses to Learn Pic Microcontroller Programming.Advanced View Pic Microcontroller Projects List.Pic10f series microcontroller based Project List of PDF. ![]() Pic16f72 microcontroller based Project List of PDF.PIC32 microcontroller based Projects List of PDF.Pic18f452 microcontroller based projects list PDF.Pic18f4550 microcontroller based projects List PDF.Pic16f877 based projects – PIC Microcontroller PDF Downloadable. ![]()
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