F_CPU/8 speed for SD card · 3d946abdfd - avr-lib - MightyPork's Gitea

electro/avr-lib

F_CPU/8 speed for SD card

This commit is contained in:

MightyPork

2015-06-10 02:08:12 +02:00

parent 91e227f314

commit 3d946abdfd

1 changed files with 4 additions and 1 deletions

									
										lib/sd.c
									
		+4
		-1
	
												View File
												
					@@ -45,10 +45,13 @@ bool sd_init()

							return false; // timeout

							return false; // timeout

						// f_cpu/8 speed (-> 2 MHz)

						SPSR |= _BV(SPI2X);

						SPCR &= 0xFC | _BV(SPR0);

						// Set block size to 512 bytes (SD card default)

						// Set block size to 512 bytes (SD card default)

						sd_command(SD_SET_BLOCKLEN, 512);

						sd_command(SD_SET_BLOCKLEN, 512);

						return true;

						return true;

					}

					}