9. Sdio_emmc_dma

9.1. Function description:

The demo is that SDIOn writes data to EMMC and then reads data from it via dma 1/4/8-line mode.

9.2. Test result:

If the data of SDIOn received is equal to SDIOn transmitted, print the corresponding correct string, if not print the fail one.

9.3. IO connection:

PAD	PAD
pad_sdion_sdclk	emmc_clk
pad_sdion_sdcmd	emmc_cmd
pad_sdion_sddat0	emmc_dat0
pad_sdion_sddat1	emmc_dat1
pad_sdion_sddat2	emmc_dat2
pad_sdion_sddat3	emmc_dat3
pad_sdion_sddat4	emmc_dat4
pad_sdion_sddat5	emmc_dat5
pad_sdion_sddat6	emmc_dat6
pad_sdion_sddat7	emmc_dat7

Note

• The ‘n’ in “sdion” indicate the peripheral number.

• 1/4/8 line and cpu/dma mode is configurable.