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Thanks for reply.
About my hardware, its correct because a few weeks ago I could run with my SD card wtihout any problems. Now I use micro SD, I can still get mmc_init and reset work well, but when I ...

I got a terrible problem in MicroSD interface with pic18F4620.

When I try to read each byte address in microSD, example my code

mmc_readblock(0,data_fat.buff);

A data_fat.buff
mmc ...

Using PCWHD 4.104 , I saw datasheet of Pic18f4431 and it have 2 SPI port, but when i try to setup_spi2, the compiler show error.
My test code is here

#include <18F4431.h>
#device adc=8

...

I can play mp3 with vs1011 up to 320kbit, it play smooth but after 1 or 2 sec it sometime interrupt zzz, it same with lowest bitrate 32kbit. It's strange because 320kbit and 32kbit still play OK but ...

thank for your reply and i made it ok .
But i have a questtion about speed ? what is better between SPI Hardware and SPI Software and can i use both in code ? ex : Setup_SPI for default port and #US ...

I want to use SDO, CLK for my select Port, example : SDO=B2,CLK=B3.
I tried this code but it didn't work.

void spi_own_write(char aa){

output_low(PIN_B3);
output_bit(P ...

Wow thanks.
I finally made it work, reason as your comment, I didn't set volume on my code.

I starting test sine tone with my vs1011 breakboard, but i didn't hear anything. I dont know my hardware problem or my code.
Anyone did it work plz help me for my project.
Here is my code.

#incl ...