2019-09-20 02:45 AM
Actually i generated code for EMMC in cubeMX. I can able to write data with 1MBps. But i need 50MBps for this what can i change in driver file.
i am using 8-Bit datamode.
i tried with increase the clock frequency also the speed has not increased.
Any one knows help me..
2019-09-20 05:47 AM
That does seem disastrously slow.
A sustained 50MBps write might be a challenge too, although you could get the wire speeds to that.
2019-09-20 06:29 AM
The H7 should be able to drive the eMMC interface in DDR52 mode
2019-09-21 07:12 PM
The eMMC on the STM32H745I-DISCO 4GB (THGBMDG5D1LBAIL)
10.28 MBps Write (FatFs)
27.04 MBps Read (FatFs)
PLL1_Q_CK=200000000, 200.00 MHz
SDMMC1_CK 2, 50.00 MHz
8-bit
I have 4-bit DDR working, 8-bit DDR did not.
2019-09-22 11:04 AM
Part placed on board is a Micron MTFC4GACAJCN-1M WT (32 Gb, 4 GB)
JY976