Hi Vivian
Attached is a binary that you can load to your FRDM-KL25Z and it will allow you to work with the SD card on an attached FRDM-FXS-MULTI-B board.
It uses the connections as you have noted:
SPI0_CS PTB-2 (J10-6)
SPI0_SCK PTD-1 (J2-12)
SPI0_MOSI PTD-2 (J2-8)
SPI0_MISO PTD-3 (J2-10)
When you connect the Kinetis USB cable, the SD card will appear as an external hard drive to the PC [USB-MSD] so that you can read and write data.
When you connect via the OpenSDA virtual COM port at 115'200 Baud you will see a command line interface (shell) which has a disk interface where you can also work with the SD card using DOS-like commands:
Disk interface =================== up go to main menu info utFAT/card info dir [path] show directory content dird [path] show deleted directory content dirh [path] show hidden content infof [path] show file info infod [path] show deleted info cd [path] change dir. (.. for up) file [path] new empty file write [path] test write to file mkdir new empty dir rename [from] [to] rename trunc truncate to [length] [path] print [path] print file content del [path] delete file or dir. undel undelete [name] format [-16/12] [label] format (unformatted) disk fformat [-16/12] [label] full format (unformatted) disk re-format [-16/12] [label] reformat disk!!!!! re-fformat [-16/12] [label] full reformat disk!!!!! sect [hex number] display sector sectw [hex no.] [patt.] [cnt] help Display menu specific help quit Leave command mode
This contains file analysis commands, can view deleted and/or hidden system files, supports long and short file names and can also undelete files if needed (LFN uses the "Linux workaround" to avoid Microsoft patent issues so can be used safely in products).
The file system is utFAT2.0 - documented at http://www.utasker.com/docs/uTasker/uTasker_utFAT.PDF
and the complete operation (FRDM-K25Z, SD card etc.) can be simulated in (approx.) real-time using VisualStudio (see screen shot below) [the free Express edition of VS2010 is adequate]. This makes it the simplest framework/tool for learning the operation and writing applications to work with it since all debugging and analysis of the operation/dehavior of the Kinetis and the SD card is performed on the PC with VisualStudio.
The utFAT2.0 API supports various additional capabilities, such as data caching on individual files, file protection and synchronisation when used by multiple users at the same time and so is generally more powerful and faster than the ones used in most open source projects.
The binary can be built with almost any IDE/compiler (although the GCC cross compiler step is also automated in VS for simplicity):
- Freescale's Kinetis Design Studio (KDS)
- Freescale's CodeWarrior 10.x
- Rowley Associate's Crossworks
- CooCox CoIDE
- IAR Embedded Workbench
- Keil µVision
- Green Hills
- Atollic TrueSTUDIO for ARM
- Standalone GCC from Makefile
- VisualStudio for Kinetis simulation
It can also be used with any other Freedom boards without any porting effort since it adapts itself to all K, KE, KV and KL chips/boards.
All software and tools are free for educational use and supported in this forum.
Regards
Mark
Kinetis: µTasker Kinetis support
KL25: µTasker Kinetis FRDM-KL25Z support / µTasker Kinetis TWR-KL25Z48M support
For the complete "out-of-the-box" Kinetis experience and faster time to market
