Recent content by raindrop

I search for sdfat 4 bit sdio example but i am little confused.I would like to use readwrite example (https://github.com/greiman/SdFat/tree/master/examples) with 4 bit sdio.

I have noticed that teensy 3.6 has 4 bit spi.Does this feature supported by sdfat library?If no,how i can use it?Thanks

So when i use 32Gb sd each read/write should be a buffer of 64Kb size instead of 512 buffer?

Could you tell which is the minimum file size when use 32 gb sd card formated to FAT32 and use standard sd card libraries??Thanks a lot!

Hi to all!! Well,recently i bought teensy 3.6 and i would like to use its sd on board module.As i know before i use an sd card i have to format it to FAT32 system,so technically the max size of sd card should be 4Gb.So which is the max size of an sd card that i can use with teensy 3.6 with the...

Hi to all. I have teensy 3.6 with on board sd card module and would like to use the sdfat library with available sram for buffers 204800 bytes that means that i can use 400 buffers of 512 bytes for each block read from sd.Microcontroller audio players have two buffers,one is pushed out(DAC...

Hi!! Well i have a project that i need to read constantly bytes from a binary file "byte" buf=file.read() from sd card and make an output with port manipulation (PORTD = buf, ... or PORTD = file.read() inside a loop) at some stable frequency. I have read that because of the sd card latency the...

Hi!! Well i have a project that i need to read constantly bytes from a binary file "byte" buf=file.read() from sd card and make an output with port manipulation (PORTD = buf, ... or PORTD = file.read() inside a loop) at some stable frequency. I have read that because of the sd card latency the...