first 2016/02 SDFileSystemDMA inherited from Official SDFileSystem.

Dependents:   SDFileSystemDMA-test DmdFullRGB_0_1

Fork of SDFileSystemDMA by mi mi

SDFileSystemDMA is enhanced SDFileSystem library for STM32 micros by using DMA functionality.
Max read transfer rate reaches over 2MByte/sec at 24MHz SPI clock if enough read buffer size is set.
Even though minimum read buffer size (512Byte) is set, read transfer rate will reach over 1MByte/sec at 24MHz SPI Clock.
( but depends on the ability of each SD card)

Test program is here.
https://developer.mbed.org/users/mimi3/code/SDFileSystemDMA-test/

/media/uploads/mimi3/sdfilesystemdma-speed-test3-read-buffer-512byte.png

/media/uploads/mimi3/sdfilesystemdma-speed-test-buffer-vs-spi-clock-nucleo-f411re-96mhz.png

Supported SPI port is shown below table.

(v): Verified. It works well.
(w): Probably it will work well. (not tested)
(c): Only compiled. (not tested)
(f): Over flash.
(r): Only read mode. (when _FS_READONLY==1)
(u) Under construction
(z): Dose not work.

Caution

If your board has SRAM less than or equal to 8KB, the buffer size must be set to 512 Bytes.

Supported Boards:
Cortex-M0

BoardSRAMSPI1SPI2SPI3
NUCLEO-F030R88KB(v)
DISCO-F051R88KB(w)
NUCLEO-F031K64KB(f)
NUCLEO-F042K66KB(r)
NUCLEO-F070RB16KB(w)
NUCLEO-F072RB16KB(w)
NUCLEO-F091RC32KB(c)

Cortex-L0

BoardSRAMSPI1SPI2SPI3
DISCO-L053C88KB(c)
NUCLEO-L053R88KB(c)
NUCLEO-L073RZ20KB(c)

Cortex-M3

BoardSRAMSPI1SPI2SPI3
DISCO-F100RB8KB(v)(v)-
BLUEPILL-F103CB20KB(w)(w)-
NUCLEO-F103RB20KB(v)(v)-
NUCLEO-L152RE80KB(v)(w)-
MOTE-L152RC32KB(w)(w)-

Cortex-M4
F3

BoardSRAMSPI1SPI2SPI3
DISCO-F303VC40KB-(v)(v)
NUCLEO-F303RE64KB(w)(w)(w)
NUCLEO-F302R816KB--(c)
NUCLEO-F303K812KB(c)--
DISCO-F334C812KB(c)--
NUCLEO-F334R812KB(c)--

F4

BoardSPI1SPI2SPI3
ELMO-F411RE(w)-(w)
MTS-MDOT-F411RE(u)-(u)
MTS-DRAGONFLY-F411RE(w)-(w)
NUCLEO-F411RE(v)-(v)
NUCLEO-F401RE(w)-(w)
MTS-MDOT-F405RG(u)-(u)
NUCLEO-F410RB(c)-(c)
NUCLEO-F446RE(c)-(c)
NUCLEO-F429ZI(c)-(c)
B96B-F446VE(c)-(c)
NUCLEO-F446ZE(c)-(c)
DISCO-F429ZI(u)-(u)
DISCO-F469NI(c)-(c)

Information

This library is set to use "short file name" in SDFileSystemDMA/FATFileSystem/ChaN/ffconf.h . ( _USE_LFN=0)
You can change this option to _USE_LFN=1 .

table.md

Committer:
mimi3
Date:
2017-01-22
Revision:
38:7077795dbf81
Parent:
36:e44163516d13

File content as of revision 38:7077795dbf81:

** SDFileSystemDMA ** is enhanced SDFileSystem library for STM32 micros by using DMA functionality.\\
Max read transfer rate reaches ** over 2MByte/sec ** at 24MHz SPI clock if enough read buffer size is set.\\
Even though minimum read buffer size (512Byte) is set, read transfer rate will reach ** over 1MByte/sec ** at 24MHz SPI Clock.\\
( but depends on the ability of each SD card)\\ 

Test program is here.\\
 [[https://developer.mbed.org/users/mimi3/code/SDFileSystemDMA-test/]]\\
 
{{/media/uploads/mimi3/sdfilesystemdma-speed-test3-read-buffer-512byte.png}}

{{/media/uploads/mimi3/sdfilesystemdma-speed-test-buffer-vs-spi-clock-nucleo-f411re-96mhz.png}}


Supported SPI port is shown below table.\\

** (v): Verified. It works well. ** \\
** (w): Probably it will work well. ** (not tested) \\
** (c): Only compiled. ** (not tested) \\
** (f): Over flash. ** \\
** (r): Only read mode. ** (when _FS_READONLY==1) \\
** (u) Under construction ** \\
** (z): Dose not work. ** \\


<<warning title="Caution">>
If your board has SRAM less than or equal to 8KB, the buffer size must be set to 512 Bytes.
<</warning>>


Supported Boards:\\
**Cortex-M0** 
|=Board |SRAM|=SPI1|=SPI2|=SPI3|
|NUCLEO-F030R8|**8KB**|**(v)**|||
|DISCO-F051R8 |**8KB**|(w) |||
| --NUCLEO-F031K6-- |4KB|(f)|||
| NUCLEO-F042K6|**6KB**|(r)|||
|NUCLEO-F070RB|16KB|(w)|||
|NUCLEO-F072RB|16KB|(w)|||
|NUCLEO-F091RC|32KB|(c)|||
**Cortex-L0** 
|=Board |SRAM|=SPI1|=SPI2|=SPI3|
|DISCO-L053C8 |**8KB**|(c)|||
|NUCLEO-L053R8|**8KB**|(c)|||
|NUCLEO-L073RZ|20KB|(c)|||
** Cortex-M3 **
|=Board|SRAM |=SPI1|=SPI2|=SPI3|
| DISCO-F100RB   |**8KB**|**(v)**|**(v)**|-|
| BLUEPILL-F103CB|20KB|(w)|(w)|-|
| NUCLEO-F103RB  |20KB|**(v)**|**(v)**|-|
| NUCLEO-L152RE  |80KB|**(v)**|(w)|-|
| MOTE-L152RC    |32KB|(w)|(w)|-|
** Cortex-M4 **\\
** F3 **
|=Board |SRAM|=SPI1|=SPI2|=SPI3|
| DISCO-F303VC |40KB|-|**(v)**|**(v)**|
| NUCLEO-F303RE|64KB|(w)|(w)|(w)|
| NUCLEO-F302R8|16KB|-|-|(c)|
| NUCLEO-F303K8|12KB|(c)|-|-|
| DISCO-F334C8 |12KB|(c)|-|-|
| NUCLEO-F334R8|12KB|(c)|-|-|
** F4 **
|=Board |=SPI1|=SPI2|=SPI3|
| ELMO-F411RE          |(w)|-|(w)|
| MTS-MDOT-F411RE      |(u)|-|(u)|
| MTS-DRAGONFLY-F411RE |(w)|-|(w)|
| NUCLEO-F411RE |**(v)**|-|**(v)**|
| NUCLEO-F401RE |(w)|-|(w)|
| MTS-MDOT-F405RG |(u)|-|(u)|
| NUCLEO-F410RB |(c)|-|(c)|
| NUCLEO-F446RE |(c)|-|(c)|
| NUCLEO-F429ZI |(c)|-|(c)|
| B96B-F446VE   |(c)|-|(c)|
| NUCLEO-F446ZE |(c)|-|(c)|
| DISCO-F429ZI  |(u)|-|(u)|
| DISCO-F469NI  |(c)|-|(c)|






<<info title="Information">>
This library is set to use "short file name" in SDFileSystemDMA/FATFileSystem/ChaN/ffconf.h . ( _USE_LFN=0) \\
You can change this option to  _USE_LFN=1 .
<</info>>