sergiotarxz/nuttx
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Explain how to use SDCard configuration in the README.txt

Browse Source
This commit is contained in:
Alan Carvalho de Assis 2017-02-26 14:53:00 -06:00 committed by Gregory Nutt
parent adb32e31a0
commit 0227de3e4d
1 changed files with 29 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
configs/stm32f103-minimum/README.txt
View File

@ -276,6 +276,35 @@ Quadrature Encoder:
In this configuration, the QEncoder inputs will be on the TIM4 inputs of
PB6 and PB7.
SDCard support:
===============
Only STM32F103xx High-density devices has SDIO controller. STM32F103C8T6 is a
Medium-density device, but we can use SDCard over SPI.
You can do that enabling these options:
CONFIG_FS_FAT=y
CONFIG_FS_WRITABLE=y
CONFIG_MMCSD=y
CONFIG_MMCSD_NSLOTS=1
CONFIG_MMCSD_SPI=y
CONFIG_MMCSD_SPICLOCK=20000000
CONFIG_MMCSD_SPIMODE=0
CONFIG_STM32_SPI=y
CONFIG_STM32_SPI1=y
CONFIG_SPI=y
CONFIG_SPI_CALLBACK=y
CONFIG_SPI_EXCHANGE=y
And connect a SDCard/SPI board on SPI1. Connect the CS pin to PA4, SCK to
PA5, MOSI to PA7 and MISO to PA6. Note: some chinese boards use MOSO instead
of MISO.
STM32F103 Minimum - specific Configuration Options
==================================================