S-record load to RAM tested successfully. basflash.s19 is a short test program (just a single line of code) that can be loaded from SD card and executed. Control is given back to BaS() on return.

BaS_gcc/.cproject

@@ -122,33 +122,6 @@
 			<path value=""/>
 		</doc-comment-owner>
 	</storageModule>
-	<storageModule moduleId="org.eclipse.cdt.make.core.buildtargets">
-		<buildTargets>
-			<target name="all" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments/>
-				<buildTarget>all</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
-			<target name="clean" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildTarget>clean</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
-			<target name="ram" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments/>
-				<buildTarget>ram</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
-		</buildTargets>
-	</storageModule>
 	<storageModule moduleId="scannerConfiguration">
 		<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId=""/>
 		<scannerConfigBuildInfo instanceId="cdt.managedbuild.toolchain.gnu.cross.base.500844171.756690686;cdt.managedbuild.toolchain.gnu.cross.base.500844171.756690686.;cdt.managedbuild.tool.gnu.cross.c.compiler.1024005096;cdt.managedbuild.tool.gnu.c.compiler.input.1427165564">
@@ -191,4 +164,38 @@
 		</scannerConfigBuildInfo>
 	</storageModule>
 	<storageModule moduleId="org.eclipse.cdt.core.LanguageSettingsProviders"/>
+	<storageModule moduleId="org.eclipse.cdt.make.core.buildtargets">
+		<buildTargets>
+			<target name="all" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildTarget>all</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+			<target name="clean" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments/>
+				<buildTarget>clean</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+			<target name="ram" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildTarget>ram</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+			<target name="basflash" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments/>
+				<buildTarget>basflash</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+		</buildTargets>
+	</storageModule>
 </cproject>

BaS_gcc/Makefile

@@ -48,11 +48,13 @@ MAPFILE=bas.map
 # Linker control file. The final $(LDCFILE) is intermediate only (preprocessed  version of $(LDCSRC)
 LDCFILE=bas.lk
 LDCSRC=bas.lk.in
+LDCBFS=basflash.lk
 
 # this Makefile can create the BaS to flash or an arbitrary ram address (for BDM debugging). See
 # below for the definition of TARGET_ADDRESS
 FLASH_EXEC=bas.$(EXE)
 RAM_EXEC=ram.$(EXE)
+BASFLASH_EXEC=basflash.$(EXE)
 
 CSRCS= \
 	$(SRCDIR)/sysinit.c \
@@ -65,7 +67,8 @@ CSRCS= \
 	$(SRCDIR)/ff.c \
 	$(SRCDIR)/sd_card.c \
 	$(SRCDIR)/wait.c \
-	$(SRCDIR)/s19reader.c
+	$(SRCDIR)/s19reader.c\
+	$(SRCDIR)/basflash.c
 
 ASRCS= \
 	$(SRCDIR)/startcf.S \
@@ -82,9 +85,12 @@ OBJS=$(COBJS) $(AOBJS)
 	
 all: $(FLASH_EXEC)
 ram: $(RAM_EXEC)
+.PHONY basflash: $(BASFLASH_EXEC)
+
 .PHONY clean:
 	@ rm -f $(FLASH_EXEC) $(FLASH_EXEC).elf $(FLASH_EXEC).s19\
 			$(RAM_EXEC) $(RAM_EXEC).elf $(RAM_EXEC).s19\
+			$(BASFLASH_EXEC) $(BASFLASH_EXEC).elf $(BASFLASH_EXEC).s19 \
 			$(OBJS) $(MAPFILE) $(LDCFILE) depend 
 
 $(FLASH_EXEC): TARGET_ADDRESS=0xe0000000
@@ -99,6 +105,14 @@ else
 	objcopy -I srec -O elf32-big --alt-machine-code 4 $@ $@.elf
 endif
 
+$(BASFLASH_EXEC): $(OBJS) $(LDCBFL)
+	$(LD) --oformat $(FORMAT) -Map $(MAPFILE) --cref -T $(LDCBFS) -o $@
+ifeq ($(COMPILE_ELF),Y)
+	$(OBJCOPY) -O srec $@ $@.s19
+else
+	objcopy -I srec -O elf32-big --alt-machine-code 4 $@ $@.elf
+endif	
+
 # compile init_fpga with -mbitfield for testing purposes
 $(OBJDIR)/init_fpga.o:	CFLAGS += -mbitfield
 

BaS_gcc/basflash.lk

@@ -0,0 +1,28 @@
+MEMORY
+{
+   flasher (WX) : ORIGIN = 0x10000000, LENGTH = 0x00100000		/* target to load basflash */
+}
+
+SECTIONS
+{
+	.text :
+	{
+		objs/basflash.o(.text)
+		objs/unicode.o(.text)
+		objs/mmc.o(.text)
+		objs/ff.o(.text)
+		objs/sd_card.o(.text)
+		objs/s19reader.o(.text)
+		objs/bas_printf.o(.text)
+		objs/printf_helper.o(.text)
+		objs/cache.o(.text)
+		*(.data)
+		*(.bss)	
+		*(.rodata)
+		*(.rodata.*)		
+	} > flasher
+	
+	/* Memory mapped registers */
+ 	__MBAR                  = 0xFF000000;
+	
+}

BaS_gcc/sources/basflash.c

@@ -0,0 +1,14 @@
+/*
+ * basflash.c
+ *
+ *  Created on: 18.12.2012
+ *      Author: mfro
+ */
+
+#include <stdint.h>
+#include <bas_printf.h>
+
+void basflash(void)
+{
+	xprintf("Hello from BASFLASH.S19!\r\n");
+}

BaS_gcc/sources/s19reader.c

@@ -195,7 +195,7 @@ typedef err_t (*memcpy_callback_t)(uint8_t *dst, uint8_t *src, uint32_t length);
  *   returns
  *   	OK or an err_t error code if anything failed
  */
-err_t read_srecords(char *filename, uint8_t **start_address, uint32_t *actual_length, memcpy_callback_t callback)
+err_t read_srecords(char *filename, void **start_address, uint32_t *actual_length, memcpy_callback_t callback)
 {
 	FRESULT fres;
 	FIL file;
@@ -210,8 +210,6 @@ err_t read_srecords(char *filename, uint8_t **start_address, uint32_t *actual_le
 		bool found_block_end = FALSE;
 		bool found_block_data = FALSE;
 
-		xprintf("succesfully opened file \"%s\"\r\n", filename);
-
 		while (ret == OK && (uint8_t *) f_gets((char *) line, sizeof(line), &file) != NULL)
 		{
 			lineno++;
@@ -230,7 +228,6 @@ err_t read_srecords(char *filename, uint8_t **start_address, uint32_t *actual_le
 				switch (vector[0])
 				{
 				case 0:	/* block header */
-					xprintf("S0 record (block header) found\r\n");
 					found_block_header = TRUE;
 					if (found_block_data || found_block_end)
 					{
@@ -257,7 +254,8 @@ err_t read_srecords(char *filename, uint8_t **start_address, uint32_t *actual_le
 					}
 					else
 					{
-						xprintf("S7 record (end) found after %d valid data blocks\r\n", data_records);
+						// xprintf("S7 record (end) found after %d valid data blocks\r\n", data_records);
+						*start_address = (void *) SREC_ADDR32(vector);
 					}
 					break;
 
@@ -336,11 +334,9 @@ void flasher_load(char *flasher_filename)
 	FRESULT fres;
 	FATFS fs;
 	err_t err;
-	uint8_t *start_address;
+	void *start_address;
 	uint32_t length;
 
-	xprintf("S-record reader\r\n");
-
 	disk_initialize(0);
 	res = disk_status(0);
 	if (res == RES_OK)
@@ -349,32 +345,41 @@ void flasher_load(char *flasher_filename)
 		if (fres == FR_OK)
 		{
 			/* first pass: parse and check for inconsistencies */
+			xprintf("check file integrity: ");
 			err = read_srecords(flasher_filename, &start_address, &length, simulate);
 			if (err == OK)
 			{
 				/* next pass: copy data to destination */
+				xprintf("OK.\r\ncopy/flash data: ");
 				err = read_srecords(flasher_filename, &start_address, &length, memcpy);
 				if (err == OK)
 				{
 					/* next pass: verify data */
+					xprintf("OK.\r\nverify data: ");
 					err = read_srecords(flasher_filename, &start_address, &length, verify);
 					if (err == OK)
 					{
-						xprintf("target successfully written and verified\r\n");
+						xprintf("OK.\r\n");
+						typedef void void_func(void);
+						void_func *func;
+						xprintf("target successfully written and verified. Start address: %p\r\n", start_address);
+
+						func = start_address;
+						(*func)();
 					}
 					else
 					{
-						xprintf("verification failed\r\n");
+						xprintf("failed\r\n");
 					}
 				}
 				else
 				{
-					xprintf("copy memory pass failed\r\n");
+					xprintf("failed\r\n");
 				}
 			}
 			else
 			{
-				xprintf("check file pass failed\r\n");
+				xprintf("failed\r\n");
 			}
 		}
 		else