文件列表:

arm7_mmc\conf\config-sample-at91.h (5036, 2005-11-19)
arm7_mmc\conf\config-sample-avr.h (5500, 2006-03-14)
arm7_mmc\conf\config-sample-linux.h (4660, 2006-03-14)
arm7_mmc\conf\config-sample-lpc2000.h (5014, 2005-11-15)
arm7_mmc\conf\config-sample-nios2.h (4666, 2006-03-14)
arm7_mmc\docs\CVS\Entries (125, 2006-03-14)
arm7_mmc\docs\CVS\Repository (14, 2006-03-14)
arm7_mmc\docs\CVS\Root (47, 2006-03-14)
arm7_mmc\docs\Makefile (304, 2006-03-14)
arm7_mmc\docs\manual.pdf (346003, 2006-03-14)
arm7_mmc\docs\manual.tex (2396, 2006-03-14)
arm7_mmc\docs\pages\arm7.tex (3490, 2006-03-14)
arm7_mmc\docs\pages\avr.tex (7226, 2006-03-14)
arm7_mmc\docs\pages\config.tex (10786, 2006-03-14)
arm7_mmc\docs\pages\CVS\Entries (1100, 2006-03-14)
arm7_mmc\docs\pages\CVS\Repository (20, 2006-03-14)
arm7_mmc\docs\pages\CVS\Root (47, 2006-03-14)
arm7_mmc\docs\pages\dateandtime.tex (1726, 2006-03-14)
arm7_mmc\docs\pages\debug.tex (1981, 2006-03-14)
arm7_mmc\docs\pages\driver.tex (6373, 2006-03-14)
arm7_mmc\docs\pages\efs_init.tex (1358, 2006-03-14)
arm7_mmc\docs\pages\file_fclose.tex (1137, 2006-03-14)
arm7_mmc\docs\pages\file_fopen.tex (2113, 2006-03-14)
arm7_mmc\docs\pages\file_read.tex (1420, 2006-03-14)
arm7_mmc\docs\pages\file_write.tex (1499, 2006-03-14)
arm7_mmc\docs\pages\freespace.tex (1820, 2006-03-14)
arm7_mmc\docs\pages\ioman.tex (11998, 2006-03-14)
arm7_mmc\docs\pages\lgpl.txt (25916, 2006-03-14)
arm7_mmc\docs\pages\license.tex (641, 2006-03-14)
arm7_mmc\docs\pages\linux.tex (5441, 2006-03-14)
arm7_mmc\docs\pages\lsgetnext.tex (1683, 2006-03-14)
arm7_mmc\docs\pages\lsopendir.tex (1276, 2006-03-14)
arm7_mmc\docs\pages\mkdir.tex (1379, 2006-03-14)
arm7_mmc\docs\pages\plibc.tex (1841, 2006-03-14)
arm7_mmc\docs\pages\preface.tex (1783, 2006-03-14)
arm7_mmc\docs\pages\rmfile.tex (1292, 2006-03-14)
arm7_mmc\docs\pages\tms6713.tex (4180, 2006-03-14)
arm7_mmc\docs\pages\types.tex (999, 2006-03-14)
arm7_mmc\docs\pages\utils.tex (4123, 2006-03-14)
arm7_mmc\docs\pics\CVS\Entries (100, 2006-03-14)
... ...

* * efsl SD-Card SPI-Interface for * - Philips LPC2000 ARM7TDMI-S * - Atmel AT91SAM7S ARM7TDMI * * The LPC2000 and AT91SAM7 interfaces are * Copyright (c) 2005, 2006 * by Martin Thomas, Kaiserslautern, Germany * * http://www.siwawi.arubi.uni-kl.de/avr_projects * All interfaces inherit the license from the main efsl-source. ------------------------------------------------- Common "ARM7" Interface Information: - A GNU arm-elf toolchain/cross-compiler must be available to build the examples and the library. Ready-made toolchains: i.e. WinARM or GNUARM Other ARM-compilers may work too but have not been tested. - #define BYTE_ALIGNMENT is disabled for the ARM-interfaces in config*.h It didn't work with alignment enabled. - The hardware connection is similar to the connection described in the efsl-manual for Atmel AVRs. Pullup-Resistors should be optional. Tests did work without pullups. ------------------------------------------------- For each interface an example application is provided. The examples can be build with the library libefsl.a or with the efsl source code. (1) To use the efsl-source "directly" - Verfiy that conf/config.h is present and the settings match the used interfaces (see templates). - Modify the line in the example's Makefile to: EFSL_AS_LIB = 0 - "make all" in the example's directory. (2) To use the efsl-library (libefsl.a) - Verfiy that conf/config.h is present and the settings match the used interfaces (see templates). - Build the library libefsl.a with the Makefile from the efsl root- directory for the used interface. (i.e. "make --makefile=Makefile-AT91 lib" or "make --makefile=Makefile-LPC2000 lib" ) - Modify the line in the example's Makefile to: EFSL_AS_LIB = 1 - "make all" in the example's directory The example-applications demonstrate: - Init of the efsl ARM debug-system - Init of the efsl - List contents of the SD-Card's root directory - Open a file and type the content - Append a line of text to a file - "cat/type" the file's content again The applications print status- and debug-messages to the UART1 on LPC2000 or UART0 on AT91SAM7 (115200,8,N,1,no FC). ------------------------------------------------- Additional Information for the LPC2000 Interface - The efsl-interface supports SD-Cards connected to the LPC2000 SPI ("SPI0") and SSP ("SPI1") interface. The used SPI-interface is hardcoded by the value defined in config.h and can not be changed during runtime. - Only some parts of the LPC2000-family have the fast SSP-Interface (i.e. LPC213x, LPC214x) others only provide the slower SPI interface. - To build the library create the file conf/config.h based on the template config-sample-lpc2000.h and use the Makefile Makefile-LPC2000 in the efsl-root-directory for LPC2000s (ARM7TDMI-S) - I have tested the interface with a LPC2138-controller and the SPI(0) and SSP/SPI1-Interface. Other LPC2000-ARM7 controllers should be supported too. (I have got positive feedback from LPC2148-users). Verify that the register-adresses in inc/interfaces/LPC2000_regs.h match the used controller and the maximum speed defined in lpc2000_spi.c is available for the part. Verify the pin-connections in lpc2000_spi.c. Adjust the memory-setting in the linker-script. ------------------------------------------------- Additional Information for the AT91 Interface - The interface supports SD-Cards connected to the AT91SAM7 SPI interface. - To build the library create a file conf/config.h based on the template config-sample-at91.h and use the Makefile Makefile-AT91 in the efsl-root-directory for AT91 (ARM7TDMI) - The AT91SAM7 offers 4 chip-select signals which can be mapped to different pins. Chip-select is done by the Hardware. See at91_spi.c for configuration options. Chip-Select is hardcoded in the current version of the interface (Fixed peripheral select - see datasheet). - I have tested the interface with an AT91SAM7S***-controller. Other AT91-ARM7 controllers should be supported too. (I have got a positive feedback from an AT91SAM7S256-user.) To adapt the code for another target: - replace AT91SAM7S***.h by the header file provided by Atmel for the used part (see at91.com) - verify the maximum speed in at91_spi.c - verfiy the pin-connections in at91_spi.c - Check the memory-setting in the linker-script. - AT91 TODO: PDC/"DMA", 16bit-transfer, SSC-support, Variable Peripheral Select ------------------------------------------------- Test Hard- and Software: - Keil (keil.com) MCB2130 board with LPC2138 - Atmel AT91SAM7S-EK board with AT91SAM7S*** - SD/MMC-connector from Buerklin.de - SanDisk "standard" SD-Card 256MB (not the "highspeed"-version) - WinARM (arm-elf GNU toolchain) - Bray++ Terminal WinARM is available at: http://www.siwawi.arubi.uni-kl.de/avr_projects/arm_projects ------------------------------------------------- Credits: - The code in efsl_debug_printf_arm.c is based on code from Holger Klabunde and has been modified to support a "fdevopen"-function. The original code has no copyright-notice and is derived from an free code by Volker Oth. - Register-definitions for LPC213x are based on a header-file from Keil GmbH (supplied with the DKARM trial-version). - Register-definitions for AT91SAM7 are from at91.com (provided by Atmel). - The basic method to handle the SPI interface on AT91 has been found in a free example from Olimex.com. ------------------------------------------------- I hope the ARM-interfaces are useful for you. Martin Thomas 4/2006

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