diff options
| author | Harald Welte <laforge@gnumonks.org> | 2011-07-30 19:31:47 +0200 |
|---|---|---|
| committer | Harald Welte <laforge@gnumonks.org> | 2011-07-30 19:31:47 +0200 |
| commit | 482b39a98fb736be26b8ad09d9d4620871eaa235 (patch) | |
| tree | d8fb6de4916d502e2562e79d84e8dd8127a56505 /basic-dataflash-project | |
| parent | 2f3c63fe3098a72b31050f0e89e3106ca8bd0e1e (diff) | |
add basic-dataflash-example
Diffstat (limited to 'basic-dataflash-project')
| -rw-r--r-- | basic-dataflash-project/Makefile | 152 | ||||
| -rw-r--r-- | basic-dataflash-project/bin/.empty | 0 | ||||
| -rw-r--r-- | basic-dataflash-project/main.c | 434 | ||||
| -rw-r--r-- | basic-dataflash-project/obj/.empty | 0 |
4 files changed, 586 insertions, 0 deletions
diff --git a/basic-dataflash-project/Makefile b/basic-dataflash-project/Makefile new file mode 100644 index 0000000..63de4ee --- /dev/null +++ b/basic-dataflash-project/Makefile @@ -0,0 +1,152 @@ +# ----------------------------------------------------------------------------
+# ATMEL Microcontroller Software Support
+# ----------------------------------------------------------------------------
+# Copyright (c) 2008, Atmel Corporation
+#
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#
+# - Redistributions of source code must retain the above copyright notice,
+# this list of conditions and the disclaimer below.
+#
+# Atmel's name may not be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
+# DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
+# OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# ----------------------------------------------------------------------------
+
+# Makefile for compiling basic-dataflash-project
+
+#-------------------------------------------------------------------------------
+# User-modifiable options
+#-------------------------------------------------------------------------------
+
+# Chip & board used for compilation
+# (can be overriden by adding CHIP=chip and BOARD=board to the command-line)
+CHIP = at91sam7s128
+BOARD = simtrace
+
+# Trace level used for compilation
+# (can be overriden by adding TRACE_LEVEL=#number to the command-line)
+# TRACE_LEVEL_DEBUG 5
+# TRACE_LEVEL_INFO 4
+# TRACE_LEVEL_WARNING 3
+# TRACE_LEVEL_ERROR 2
+# TRACE_LEVEL_FATAL 1
+# TRACE_LEVEL_NO_TRACE 0
+TRACE_LEVEL = 4
+
+# Optimization level, put in comment for debugging
+OPTIMIZATION = -Os
+
+# AT91 library directory
+AT91LIB = ../at91lib
+
+# Output file basename
+OUTPUT = basic-dataflash-project-$(BOARD)-$(CHIP)
+
+# Compile for all memories available on the board (this sets $(MEMORIES))
+include $(AT91LIB)/boards/$(BOARD)/board.mak
+
+# Output directories
+BIN = bin
+OBJ = obj
+
+#-------------------------------------------------------------------------------
+# Tools
+#-------------------------------------------------------------------------------
+
+# Tool suffix when cross-compiling
+CROSS_COMPILE = arm-elf-
+
+# Compilation tools
+CC = $(CROSS_COMPILE)gcc
+SIZE = $(CROSS_COMPILE)size
+STRIP = $(CROSS_COMPILE)strip
+OBJCOPY = $(CROSS_COMPILE)objcopy
+
+# Flags
+INCLUDES = -I$(AT91LIB)/boards/$(BOARD) -I$(AT91LIB)/peripherals
+INCLUDES += -I$(AT91LIB)/memories -I$(AT91LIB)
+
+CFLAGS = -Wall -mlong-calls -ffunction-sections
+CFLAGS += -g $(OPTIMIZATION) $(INCLUDES) -D$(CHIP) -DTRACE_LEVEL=$(TRACE_LEVEL)
+ASFLAGS = -g $(OPTIMIZATION) $(INCLUDES) -D$(CHIP) -D__ASSEMBLY__
+LDFLAGS = -g $(OPTIMIZATION) -nostartfiles -Wl,--gc-sections
+
+#-------------------------------------------------------------------------------
+# Files
+#-------------------------------------------------------------------------------
+
+# Directories where source files can be found
+PERIPH = $(AT91LIB)/peripherals
+MEM = $(AT91LIB)/memories
+BOARDS = $(AT91LIB)/boards
+UTILITY = $(AT91LIB)/utility
+
+VPATH += $(MEM)/spi-flash
+VPATH += $(UTILITY)
+VPATH += $(PERIPH)/dbgu $(PERIPH)/pio $(PERIPH)/aic $(PERIPH)/pmc
+VPATH += $(PERIPH)/cp15
+VPATH += $(BOARDS)/$(BOARD) $(BOARDS)/$(BOARD)/$(CHIP)
+
+# Objects built from C source files
+C_OBJECTS = main.o
+C_OBJECTS += spid.o at45.o
+C_OBJECTS += string.o stdio.o
+C_OBJECTS += dbgu.o pio.o aic.o pmc.o cp15.o
+C_OBJECTS += board_memories.o board_lowlevel.o
+
+# Objects built from Assembly source files
+ASM_OBJECTS = board_cstartup.o
+#ASM_OBJECTS += cp15_asm_gcc.o
+ASM_OBJECTS += cp15_asm.o
+
+# Append OBJ and BIN directories to output filename
+OUTPUT := $(BIN)/$(OUTPUT)
+
+#-------------------------------------------------------------------------------
+# Rules
+#-------------------------------------------------------------------------------
+
+all: $(BIN) $(OBJ) $(MEMORIES)
+
+$(BIN) $(OBJ):
+ mkdir $@
+
+define RULES
+C_OBJECTS_$(1) = $(addprefix $(OBJ)/$(1)_, $(C_OBJECTS))
+ASM_OBJECTS_$(1) = $(addprefix $(OBJ)/$(1)_, $(ASM_OBJECTS))
+
+$(1): $$(ASM_OBJECTS_$(1)) $$(C_OBJECTS_$(1))
+ $(CC) $(LDFLAGS) -T"$(AT91LIB)/boards/$(BOARD)/$(CHIP)/$$@.lds" -o $(OUTPUT)-$$@.elf $$^
+ $(OBJCOPY) -O binary $(OUTPUT)-$$@.elf $(OUTPUT)-$$@.bin
+ $(SIZE) $$^ $(OUTPUT)-$$@.elf
+
+$$(C_OBJECTS_$(1)): $(OBJ)/$(1)_%.o: %.c Makefile $(OBJ) $(BIN)
+ $(CC) $(CFLAGS) -D$(1) -c -o $$@ $$<
+
+$$(ASM_OBJECTS_$(1)): $(OBJ)/$(1)_%.o: %.S Makefile $(OBJ) $(BIN)
+ $(CC) $(ASFLAGS) -D$(1) -c -o $$@ $$<
+
+debug_$(1): $(1)
+ perl ../resources/gdb/debug.pl $(OUTPUT)-$(1).elf
+
+endef
+
+$(foreach MEMORY, $(MEMORIES), $(eval $(call RULES,$(MEMORY))))
+
+clean:
+ -rm -f $(OBJ)/*.o $(BIN)/*.bin $(BIN)/*.elf
+
diff --git a/basic-dataflash-project/bin/.empty b/basic-dataflash-project/bin/.empty new file mode 100644 index 0000000..e69de29 --- /dev/null +++ b/basic-dataflash-project/bin/.empty diff --git a/basic-dataflash-project/main.c b/basic-dataflash-project/main.c new file mode 100644 index 0000000..f30f263 --- /dev/null +++ b/basic-dataflash-project/main.c @@ -0,0 +1,434 @@ +/* ----------------------------------------------------------------------------
+ * ATMEL Microcontroller Software Support
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2008, Atmel Corporation
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the disclaimer below.
+ *
+ * Atmel's name may not be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
+ * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
+ * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ----------------------------------------------------------------------------
+ */
+//------------------------------------------------------------------------------
+/// \dir "Basic-dataflash-project"
+///
+/// !!!Purpose
+///
+/// The Basic Dataflash project will help new users get familiar with SPI interface
+/// on Atmel's AT91 family of microcontrollers. This project gives you an AT45
+/// Dataflash programming code so that can help develop your own SPI devices
+/// applications with maximum efficiency.
+///
+/// You can find following information depends on your needs:
+/// - A Spi low level driver performs SPI device Initializes, data transfer and
+/// receive. It can be used by upper SPI driver such as AT45 %dataflash.
+/// - A Dataflash driver is based on top of the corresponding Spi driver.
+/// It allow user to do operations with %dataflash in a unified way.
+///
+/// !See also
+/// - "spi-flash": Dataflash interface driver.
+///
+/// !!!Requirements
+///
+/// This package can be used with all Atmel evaluation kits that have SPI
+/// interface and on-board or external Serialflash connected. The package runs at
+/// SRAM or SDRAM, so SDRAM device is needed if you want to run this package in SDRAM.
+///
+///
+/// !!!Description
+///
+/// The demonstration program tests the dataflash present on the evaluation kit by
+/// erasing and writing each one of its pages.
+///
+/// !!!Usage
+///
+/// -# Build the program and download it inside the evaluation board. Please
+/// refer to the <a href="http://www.atmel.com/dyn/resources/prod_documents/doc6224.pdf">SAM-BA User Guide</a>,
+/// the <a href="http://www.atmel.com/dyn/resources/prod_documents/doc6310.pdf">GNU-Based Software Development</a>
+/// application note or to the <a href="ftp://ftp.iar.se/WWWfiles/arm/Guides/EWARM_UserGuide.ENU.pdf">IAR EWARM User Guide</a>,
+/// depending on your chosen solution.
+/// -# On the computer, open and configure a terminal application
+/// (e.g. HyperTerminal on Microsoft Windows) with these settings:
+/// - 115200 bauds
+/// - 8 bits of data
+/// - No parity
+/// - 1 stop bit
+/// - No flow control
+/// -# Start the application.
+/// -# Upon startup, the application will output the following lines on the DBGU.
+/// \code
+/// -- Basic Dataflash Project xxx --
+/// -- AT91xxxxxx-xx
+/// -- Compiled: xxx xx xxxx xx:xx:xx --
+/// -I- Initializing the SPI and AT45 drivers
+/// -I- At45 enabled
+/// -I- SPI interrupt enabled
+/// -I- Waiting for a dataflash to be connected ...
+/// \endcode
+/// -# As soon as a dataflash is connected, the tests will start. Eventually,
+/// the test result (pass or fail) will be output on the DBGU.
+//------------------------------------------------------------------------------
+
+//------------------------------------------------------------------------------
+/// \unit
+///
+/// !Purpose
+///
+/// This file contains all the specific code for the basic-dataflash-project.
+/// It tests the dataflash present on the evaluation kit by erasing and writing
+/// each one of its pages
+///
+/// !Contents
+/// The code can be roughly broken down as follows:
+/// - AT45 Dataflash write data function.
+/// - AT45 Dataflash read data function.
+/// - AT45 Dataflash erase function.
+/// - Other AT45 functions (such as AT45_GetStatus())
+/// - The main() function, which implements the program behavior.
+/// - Initializes an AT45 instance and configures SPI chip select pin.
+/// - Config SPI Interrupt Service Routine.
+/// - Identifier the AT45 device connected to the evaluation kit.
+/// - Test the dataflash by erasing and writing each one of its pages.
+///
+/// !See also
+/// - "spi-flash": Dataflash interface driver.
+/// Please refer to the list of functions in the #Overview# tab of this unit
+/// for more detailed information.
+//------------------------------------------------------------------------------
+//------------------------------------------------------------------------------
+// Headers
+//------------------------------------------------------------------------------
+
+#include <board.h>
+#include <pio/pio.h>
+#include <aic/aic.h>
+#include <utility/assert.h>
+#include <utility/trace.h>
+#include <spi-flash/at45.h>
+
+#include <string.h>
+
+//------------------------------------------------------------------------------
+// Local definitions
+//------------------------------------------------------------------------------
+
+/// SPI clock frequency, in Hz.
+#define SPCK 1000000
+
+/// If there is no on-board dataflash socket, use SPI0/NPCS0.
+#ifndef BOARD_AT45_A_SPI_PINS
+ #ifdef AT91C_BASE_SPI0
+ #define BOARD_AT45_A_SPI_BASE AT91C_BASE_SPI0
+ #define BOARD_AT45_A_SPI_ID AT91C_ID_SPI0
+ #define BOARD_AT45_A_SPI_PINS PINS_SPI0
+ #define BOARD_AT45_A_NPCS_PIN PIN_SPI0_NPCS0
+ #else
+ #define BOARD_AT45_A_SPI_BASE AT91C_BASE_SPI
+ #define BOARD_AT45_A_SPI_ID AT91C_ID_SPI
+ #define BOARD_AT45_A_SPI_PINS PINS_SPI
+ #define BOARD_AT45_A_NPCS_PIN PIN_SPI_NPCS0
+ #endif
+ #define BOARD_AT45_A_SPI 0
+ #define BOARD_AT45_A_NPCS 0
+#endif
+
+//------------------------------------------------------------------------------
+// Internal variables
+//------------------------------------------------------------------------------
+
+/// SPI driver instance.
+static Spid spid;
+
+/// AT45 driver instance.
+static At45 at45;
+
+/// Pins used by the application.
+static const Pin pins[] = {BOARD_AT45_A_SPI_PINS, BOARD_AT45_A_NPCS_PIN};
+
+/// Page buffer.
+static unsigned char pBuffer[2112];
+
+//------------------------------------------------------------------------------
+// Internal functions
+//------------------------------------------------------------------------------
+
+//------------------------------------------------------------------------------
+/// SPI interrupt handler. Invokes the SPI driver handler to check for pending
+/// interrupts.
+//------------------------------------------------------------------------------
+static void ISR_Spi(void)
+{
+ SPID_Handler(&spid);
+}
+
+//------------------------------------------------------------------------------
+/// Retrieves and returns the At45 current status, or 0 if an error
+/// happened.
+/// \param pAt45 Pointer to a At45 driver instance.
+//------------------------------------------------------------------------------
+static unsigned char AT45_GetStatus(At45 *pAt45)
+{
+ unsigned char error;
+ unsigned char status;
+
+ // Sanity checks
+ ASSERT(pAt45, "-F- AT45_GetStatus: pAt45 is null\n\r");
+
+ // Issue a status register read command
+ error = AT45_SendCommand(pAt45, AT45_STATUS_READ, 1, &status, 1, 0, 0, 0);
+ ASSERT(!error, "-F- AT45_GetStatus: Failed to issue command.\n\r");
+
+ // Wait for command to terminate
+ while (AT45_IsBusy(pAt45));
+
+ return status;
+}
+
+//------------------------------------------------------------------------------
+/// Waits for the At45 to be ready to accept new commands.
+/// \param pAt45 Pointer to a At45 driver instance.
+//------------------------------------------------------------------------------
+static void AT45_WaitReady(At45 *pAt45)
+{
+ unsigned char ready = 0;
+
+ // Sanity checks
+ ASSERT(pAt45, "-F- AT45_WaitUntilReady: pAt45 is null\n\r");
+
+ // Poll device until it is ready
+ while (!ready) {
+
+ ready = AT45_STATUS_READY(AT45_GetStatus(pAt45));
+ }
+}
+
+//------------------------------------------------------------------------------
+/// Reads and returns the JEDEC identifier of a At45.
+/// \param pAt45 Pointer to a At45 driver instance.
+//------------------------------------------------------------------------------
+static unsigned int AT45_GetJedecId(At45 *pAt45)
+{
+ unsigned char error;
+ unsigned int id;
+
+ // Sanity checks
+ ASSERT(pAt45, "-F- AT45_GetJedecId: pAt45 is null\n\r");
+
+ // Issue a manufacturer and device ID read command
+ error = AT45_SendCommand(pAt45, AT45_ID_READ, 1, (void *) &id, 4, 0, 0, 0);
+ ASSERT(!error, "-F- AT45_GetJedecId: Could not issue command.\n\r");
+
+ // Wait for transfer to finish
+ while (AT45_IsBusy(pAt45));
+
+ return id;
+}
+
+//------------------------------------------------------------------------------
+/// Reads data from the At45 inside the provided buffer. Since a continuous
+/// read command is used, there is no restriction on the buffer size and read
+/// address.
+/// \param pAt45 Pointer to a At45 driver instance.
+/// \param pBuffer Data buffer.
+/// \param size Number of bytes to read.
+/// \param address Address at which data shall be read.
+//------------------------------------------------------------------------------
+static void AT45_Read(
+ At45 *pAt45,
+ unsigned char *pBuffer,
+ unsigned int size,
+ unsigned int address)
+{
+ unsigned char error;
+
+ // Sanity checks
+ ASSERT(pAt45, "-F- AT45_Read: pAt45 is null\n\r");
+ ASSERT(pBuffer, "-F- AT45_Read: pBuffer is null\n\r");
+
+ // Issue a continuous read array command
+ error = AT45_SendCommand(pAt45, AT45_CONTINUOUS_READ_LEG, 8, pBuffer, size, address, 0, 0);
+ ASSERT(!error, "-F- AT45_Read: Failed to issue command\n\r");
+
+ // Wait for the read command to execute
+ while (AT45_IsBusy(pAt45));
+}
+
+//------------------------------------------------------------------------------
+/// Writes data on the At45 at the specified address. Only one page of
+/// data is written that way; if the address is not at the beginning of the
+/// page, the data is written starting from this address and wraps around to
+/// the beginning of the page.
+/// \param pAt45 Pointer to a At45 driver instance.
+/// \param pBuffer Buffer containing the data to write.
+/// \param size Number of bytes to write.
+/// \param address Destination address on the At45.
+//------------------------------------------------------------------------------
+static void AT45_Write(
+ At45 *pAt45,
+ unsigned char *pBuffer,
+ unsigned int size,
+ unsigned int address)
+{
+ unsigned char error;
+
+ // Sanity checks
+ ASSERT(pAt45, "-F- AT45_Write: pAt45 is null.\n\r");
+ ASSERT(pBuffer, "-F- AT45_Write: pBuffer is null.\n\r");
+ ASSERT(size <= pAt45->pDesc->pageSize, "-F- AT45_Write: Size too big\n\r");
+
+ // Issue a page write through buffer 1 command
+ error = AT45_SendCommand(pAt45, AT45_PAGE_WRITE_BUF1, 4, pBuffer, size, address, 0, 0);
+ ASSERT(!error, "-F- AT45_Write: Could not issue command.\n\r");
+
+ // Wait until the command is sent
+ while (AT45_IsBusy(pAt45));
+
+ // Wait until the At45 becomes ready again
+ AT45_WaitReady(pAt45);
+}
+
+//------------------------------------------------------------------------------
+/// Erases a page of data at the given address in the At45.
+/// \param pAt45 Pointer to a At45 driver instance.
+/// \param address Address of page to erase.
+//------------------------------------------------------------------------------
+static void AT45_Erase(At45 *pAt45, unsigned int address)
+{
+ unsigned char error;
+
+ // Sanity checks
+ ASSERT(pAt45, "-F- AT45_Erase: pAt45 is null\n\r");
+
+ // Issue a page erase command.
+ error = AT45_SendCommand(pAt45, AT45_PAGE_ERASE, 4, 0, 0, address, 0, 0);
+ ASSERT(!error, "-F- AT45_Erase: Could not issue command.\n\r");
+
+ // Wait for end of transfer
+ while (AT45_IsBusy(pAt45));
+
+ // Poll until the At45 has completed the erase operation
+ AT45_WaitReady(pAt45);
+}
+
+//------------------------------------------------------------------------------
+// Exported functions
+//------------------------------------------------------------------------------
+
+//------------------------------------------------------------------------------
+/// Tests the At45 connected to the board by performing several command
+/// on each of its pages.
+//------------------------------------------------------------------------------
+int main()
+{
+ unsigned int i;
+ unsigned int page;
+ unsigned char testFailed;
+ const At45Desc *pDesc;
+
+ // Configure pins
+ PIO_Configure(pins, PIO_LISTSIZE(pins));
+
+ // Configure traces
+ TRACE_CONFIGURE(DBGU_STANDARD, 115200, BOARD_MCK);
+ printf("-- Basic Dataflash Project %s --\n\r", SOFTPACK_VERSION);
+ printf("-- %s\n\r", BOARD_NAME);
+ printf("-- Compiled: %s %s --\n\r", __DATE__, __TIME__);
+
+ // SPI and At45 driver initialization
+ TRACE_INFO("Initializing the SPI and AT45 drivers\n\r");
+ AIC_ConfigureIT(BOARD_AT45_A_SPI_ID, 0, ISR_Spi);
+ SPID_Configure(&spid, BOARD_AT45_A_SPI_BASE, BOARD_AT45_A_SPI_ID);
+ SPID_ConfigureCS(&spid, BOARD_AT45_A_NPCS, AT45_CSR(BOARD_MCK, SPCK));
+ AT45_Configure(&at45, &spid, BOARD_AT45_A_NPCS);
+ TRACE_INFO("At45 enabled\n\r");
+ AIC_EnableIT(BOARD_AT45_A_SPI_ID);
+ TRACE_INFO("SPI interrupt enabled\n\r");
+
+ // Identify the At45 device
+ TRACE_INFO("Waiting for a dataflash to be connected ...\n\r");
+ pDesc = 0;
+ while (!pDesc) {
+
+ pDesc = AT45_FindDevice(&at45, AT45_GetStatus(&at45));
+ }
+ TRACE_INFO("%s detected\n\r", at45.pDesc->name);
+
+ // Output JEDEC identifier of device
+ TRACE_INFO("Device identifier: 0x%08X\n\r", AT45_GetJedecId(&at45));
+
+ // Test all pages
+ testFailed = 0;
+ page = 0;
+ while (!testFailed && (page < AT45_PageNumber(&at45))) {
+
+ TRACE_INFO("Test in progress on page: %6u\r", page);
+
+ // Erase page
+ AT45_Erase(&at45, page * AT45_PageSize(&at45));
+
+ // Verify that page has been erased correctly
+ memset(pBuffer, 0, AT45_PageSize(&at45));
+ AT45_Read(&at45, pBuffer, AT45_PageSize(&at45), page * AT45_PageSize(&at45));
+ for (i=0; i < AT45_PageSize(&at45); i++) {
+
+ if (pBuffer[i] != 0xff) {
+
+ TRACE_ERROR("Could not erase page %u\n\r", page);
+ testFailed = 1;
+ break;
+ }
+ }
+
+ // Write page
+ for (i=0; i < AT45_PageSize(&at45); i++) {
+
+ pBuffer[i] = i & 0xFF;
+ }
+ AT45_Write(&at45, pBuffer, AT45_PageSize(&at45), page * AT45_PageSize(&at45));
+
+ // Check that data has been written correctly
+ memset(pBuffer, 0, AT45_PageSize(&at45));
+ AT45_Read(&at45, pBuffer, AT45_PageSize(&at45), page * AT45_PageSize(&at45));
+ for (i=0; i < AT45_PageSize(&at45); i++) {
+
+ if (pBuffer[i] != (i & 0xFF)) {
+
+ TRACE_ERROR("Could not write page %u\n\r", page);
+ testFailed = 1;
+ break;
+ }
+ }
+
+ page++;
+ }
+
+ // Display test result
+ if (testFailed) {
+
+ TRACE_ERROR("Test failed.\n\r");
+ }
+ else {
+
+ TRACE_INFO("Test passed.\n\r");
+ }
+
+ return 0;
+}
+
diff --git a/basic-dataflash-project/obj/.empty b/basic-dataflash-project/obj/.empty new file mode 100644 index 0000000..e69de29 --- /dev/null +++ b/basic-dataflash-project/obj/.empty |