mi mi
first 2016/02 SDFileSystemDMA inherited from Official SDFileSystem.
Dependents: SDFileSystemDMA-test DmdFullRGB_0_1
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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/
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
| Board | SRAM | SPI1 | SPI2 | SPI3 |
|---|---|---|---|---|
| NUCLEO-F030R8 | 8KB | (v) | ||
| DISCO-F051R8 | 8KB | (w) | ||
| 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) |
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 .
spi_dma/spi_dma.h@38:7077795dbf81, 2017-01-22 (annotated)
- Committer:
- mimi3
- Date:
- Sun Jan 22 23:13:11 2017 +0900
- Revision:
- 38:7077795dbf81
- Parent:
- 21:41129109d6ab
change: table.md
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| mimi3 | 0:853a612ffb16 | 1 | /* |
| mimi3 | 0:853a612ffb16 | 2 | |
| mimi3 | 0:853a612ffb16 | 3 | This file is licensed under Apache 2.0 license. |
| mimi3 | 0:853a612ffb16 | 4 | (C) 2016 dinau |
| mimi3 | 0:853a612ffb16 | 5 | |
| mimi3 | 0:853a612ffb16 | 6 | */ |
| mimi3 | 0:853a612ffb16 | 7 | #ifndef SPI_DMA_H_INCLUDED |
| mimi3 | 0:853a612ffb16 | 8 | #define SPI_DMA_H_INCLUDED |
| mimi3 | 0:853a612ffb16 | 9 | |
| mimi3 | 0:853a612ffb16 | 10 | #ifdef __cplusplus |
| mimi3 | 0:853a612ffb16 | 11 | extern "C" { |
| mimi3 | 0:853a612ffb16 | 12 | #endif |
| mimi3 | 0:853a612ffb16 | 13 | |
| mimi3 | 0:853a612ffb16 | 14 | #include "mbed_assert.h" |
| mimi3 | 0:853a612ffb16 | 15 | #include "spi_api.h" |
| mimi3 | 0:853a612ffb16 | 16 | |
| mimi3 | 0:853a612ffb16 | 17 | #define DMA_SPI_READ 0 |
| mimi3 | 0:853a612ffb16 | 18 | #define DMA_SPI_WRITE 1 |
| mimi3 | 0:853a612ffb16 | 19 | void __spi_dma_read_write( SPI_TypeDef *spi, uint8_t *txbuff, uint8_t *rxbuff, uint16_t count, uint8_t mode); |
| mimi3 | 0:853a612ffb16 | 20 | #define spi_dma_read(pspi,txbuff,rxbuff,count )\ |
| mimi3 | 0:853a612ffb16 | 21 | __spi_dma_read_write( pspi,txbuff,rxbuff,count,DMA_SPI_READ) |
| mimi3 | 0:853a612ffb16 | 22 | #define spi_dma_write(pspi,txbuff,rxbuff,count )\ |
| mimi3 | 0:853a612ffb16 | 23 | __spi_dma_read_write( pspi,txbuff,rxbuff,count,DMA_SPI_WRITE) |
| mimi3 | 0:853a612ffb16 | 24 | |
| mimi3 | 2:0e871408d51b | 25 | |
| mimi3 | 2:0e871408d51b | 26 | |
| mimi3 | 2:0e871408d51b | 27 | |
| mimi3 | 2:0e871408d51b | 28 | |
| mimi3 | 21:41129109d6ab | 29 | extern DMA_HandleTypeDef hdma_spi_tx; |
| mimi3 | 21:41129109d6ab | 30 | extern DMA_HandleTypeDef hdma_spi_rx; |
| mimi3 | 5:809e2eece945 | 31 | extern DMA_HandleTypeDef hdma_spi3_tx; |
| mimi3 | 5:809e2eece945 | 32 | extern DMA_HandleTypeDef hdma_spi3_rx; |
| mimi3 | 21:41129109d6ab | 33 | extern SPI_HandleTypeDef SpiHandle; |
| mimi3 | 5:809e2eece945 | 34 | extern SPI_HandleTypeDef Spi3Handle; |
| mimi3 | 2:0e871408d51b | 35 | |
| mimi3 | 2:0e871408d51b | 36 | |
| mimi3 | 21:41129109d6ab | 37 | void spi_dma_init( SPI_TypeDef *spi ); |
| mimi3 | 2:0e871408d51b | 38 | void spi_dma_irq_setup( SPI_TypeDef *spi); |
| mimi3 | 5:809e2eece945 | 39 | void spi_dma_get_info( SPI_TypeDef *spi ); |
| mimi3 | 2:0e871408d51b | 40 | void spi_dma_handle_setup( SPI_TypeDef *spi, uint8_t mode ); |
| mimi3 | 21:41129109d6ab | 41 | SPI_TypeDef *spi_get_id(PinName mosi, PinName miso, PinName sclk, PinName ssel); |
| mimi3 | 2:0e871408d51b | 42 | |
| mimi3 | 2:0e871408d51b | 43 | |
| mimi3 | 0:853a612ffb16 | 44 | #ifdef __cplusplus |
| mimi3 | 0:853a612ffb16 | 45 | } |
| mimi3 | 0:853a612ffb16 | 46 | #endif |
| mimi3 | 0:853a612ffb16 | 47 | |
| mimi3 | 0:853a612ffb16 | 48 | #endif /* SPI_DMA_H_INCLUDED */ |
| mimi3 | 0:853a612ffb16 | 49 |