20. Udma_1bit_wr

20.1. Function description:

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

20.2. Test result:

If the data of SDIOn received is equal to SDIOn transmitted, print pass, if not print fail.

20.3. IO connection:

PAD	PAD
pad_sdion_sdclk	emmc_clk
pad_sdion_sdcmd	emmc_cmd
pad_sdion_sddat0	emmc_dat0

Note

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