added demo_gpio

6 files changed, 657 insertions, 0 deletions

diff --git a/FreedomStudio/E51FPGA/demo_gpio/.cproject b/FreedomStudio/E51FPGA/demo_gpio/.cproject
new file mode 100644
index 0000000..36c90f8
--- /dev/null
+++ b/FreedomStudio/E51FPGA/demo_gpio/.cproject
@@ -0,0 +1,171 @@
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+		</scannerConfigBuildInfo>
+		<scannerConfigBuildInfo instanceId="org.eclipse.cdt.cross.riscv.gnu.linux.elf.release.1469682639;org.eclipse.cdt.cross.riscv.gnu.linux.elf.release.1469682639.;org.eclipse.cdt.cross.riscv.gnu.linux.elf.c.compiler.release.356623662;org.eclipse.cdt.cross.riscv.gnu.linux.c.compiler.base.input.270161515">
+			<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId="org.eclipse.cdt.cross.riscv.gnu.RISCV_GCCManagedMakePerProjectProfileC"/>
+		</scannerConfigBuildInfo>
+		<scannerConfigBuildInfo instanceId="org.eclipse.cdt.cross.riscv.gnu.linux.elf.debug.83943911;org.eclipse.cdt.cross.riscv.gnu.linux.elf.debug.83943911.;org.eclipse.cdt.cross.riscv.gnu.linux.elf.assembler.debug.2136801255;org.eclipse.cdt.cross.riscv.gnu.linux.assembler.base.input.1388230464">
+			<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId="org.eclipse.cdt.cross.riscv.gnu.RISCV_GCCManagedMakePerProjectProfileC"/>
+		</scannerConfigBuildInfo>
+		<scannerConfigBuildInfo instanceId="org.eclipse.cdt.cross.riscv.gnu.linux.elf.debug.83943911;org.eclipse.cdt.cross.riscv.gnu.linux.elf.debug.83943911.;org.eclipse.cdt.cross.riscv.gnu.linux.elf.c.compiler.debug.1126128967;org.eclipse.cdt.cross.riscv.gnu.linux.c.compiler.base.input.873855873">
+			<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId="org.eclipse.cdt.cross.riscv.gnu.RISCV_GCCManagedMakePerProjectProfileC"/>
+		</scannerConfigBuildInfo>
+	</storageModule>
+	<storageModule moduleId="org.eclipse.cdt.core.LanguageSettingsProviders"/>
+	<storageModule moduleId="refreshScope" versionNumber="2">
+		<configuration configurationName="Debug">
+			<resource resourceType="PROJECT" workspacePath="/hello"/>
+		</configuration>
+		<configuration configurationName="Release">
+			<resource resourceType="PROJECT" workspacePath="/hello"/>
+		</configuration>
+	</storageModule>
+	<storageModule moduleId="org.eclipse.cdt.make.core.buildtargets"/>
+</cproject>
diff --git a/FreedomStudio/E51FPGA/demo_gpio/.gitignore b/FreedomStudio/E51FPGA/demo_gpio/.gitignore
new file mode 100644
index 0000000..3df573f
--- /dev/null
+++ b/FreedomStudio/E51FPGA/demo_gpio/.gitignore
@@ -0,0 +1 @@
+/Debug/
diff --git a/FreedomStudio/E51FPGA/demo_gpio/.project b/FreedomStudio/E51FPGA/demo_gpio/.project
new file mode 100644
index 0000000..4aebbeb
--- /dev/null
+++ b/FreedomStudio/E51FPGA/demo_gpio/.project
@@ -0,0 +1,228 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>demo_gpio</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.cdt.managedbuilder.core.genmakebuilder</name>
+			<triggers>clean,full,incremental,</triggers>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.cdt.managedbuilder.core.ScannerConfigBuilder</name>
+			<triggers>full,incremental,</triggers>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.cdt.core.cnature</nature>
+		<nature>org.eclipse.cdt.managedbuilder.core.managedBuildNature</nature>
+		<nature>org.eclipse.cdt.managedbuilder.core.ScannerConfigNature</nature>
+	</natures>
+	<linkedResources>
+		<link>
+			<name>bsp</name>
+			<type>2</type>
+			<locationURI>virtual:/virtual</locationURI>
+		</link>
+		<link>
+			<name>demo_gpio.c</name>
+			<type>1</type>
+			<locationURI>PARENT-3-PROJECT_LOC/software/demo_gpio/demo_gpio.c</locationURI>
+		</link>
+		<link>
+			<name>bsp/.DS_Store</name>
+			<type>1</type>
+			<locationURI>PARENT-3-PROJECT_LOC/bsp/.DS_Store</locationURI>
+		</link>
+		<link>
+			<name>bsp/drivers</name>
+			<type>2</type>
+			<locationURI>virtual:/virtual</locationURI>
+		</link>
+		<link>
+			<name>bsp/env</name>
+			<type>2</type>
+			<locationURI>virtual:/virtual</locationURI>
+		</link>
+		<link>
+			<name>bsp/include</name>
+			<type>2</type>
+			<locationURI>virtual:/virtual</locationURI>
+		</link>
+		<link>
+			<name>bsp/drivers/fe300prci</name>
+			<type>2</type>
+			<locationURI>virtual:/virtual</locationURI>
+		</link>
+		<link>
+			<name>bsp/drivers/plic</name>
+			<type>2</type>
+			<locationURI>virtual:/virtual</locationURI>
+		</link>
+		<link>
+			<name>bsp/env/.DS_Store</name>
+			<type>1</type>
+			<locationURI>PARENT-3-PROJECT_LOC/bsp/env/.DS_Store</locationURI>
+		</link>
+		<link>
+			<name>bsp/env/coreplexip-e51-arty</name>
+			<type>2</type>
+			<locationURI>virtual:/virtual</locationURI>
+		</link>
+		<link>
+			<name>bsp/env/encoding.h</name>
+			<type>1</type>
+			<locationURI>PARENT-3-PROJECT_LOC/bsp/env/encoding.h</locationURI>
+		</link>
+		<link>
+			<name>bsp/env/entry.S</name>
+			<type>1</type>
+			<locationURI>PARENT-3-PROJECT_LOC/bsp/env/entry.S</locationURI>
+		</link>
+		<link>
+			<name>bsp/env/start.S</name>
+			<type>1</type>
+			<locationURI>PARENT-3-PROJECT_LOC/bsp/env/start.S</locationURI>
+		</link>
+		<link>
+			<name>bsp/include/.DS_Store</name>
+			<type>1</type>
+			<locationURI>PARENT-3-PROJECT_LOC/bsp/include/.DS_Store</locationURI>
+		</link>
+		<link>
+			<name>bsp/include/sifive</name>
+			<type>2</type>
+			<locationURI>virtual:/virtual</locationURI>
+		</link>
+		<link>
+			<name>bsp/drivers/fe300prci/fe300prci_driver.c</name>
+			<type>1</type>
+			<locationURI>PARENT-3-PROJECT_LOC/bsp/drivers/fe300prci/fe300prci_driver.c</locationURI>
+		</link>
+		<link>
+			<name>bsp/drivers/fe300prci/fe300prci_driver.h</name>
+			<type>1</type>
+			<locationURI>PARENT-3-PROJECT_LOC/bsp/drivers/fe300prci/fe300prci_driver.h</locationURI>
+		</link>
+		<link>
+			<name>bsp/drivers/plic/plic_driver.c</name>
+			<type>1</type>
+			<locationURI>PARENT-3-PROJECT_LOC/bsp/drivers/plic/plic_driver.c</locationURI>
+		</link>
+		<link>
+			<name>bsp/drivers/plic/plic_driver.h</name>
+			<type>1</type>
+			<locationURI>PARENT-3-PROJECT_LOC/bsp/drivers/plic/plic_driver.h</locationURI>
+		</link>
+		<link>
+			<name>bsp/env/coreplexip-e51-arty/init.c</name>
+			<type>1</type>
+			<locationURI>PARENT-3-PROJECT_LOC/bsp/env/coreplexip-e51-arty/init.c</locationURI>
+		</link>
+		<link>
+			<name>bsp/env/coreplexip-e51-arty/init.o</name>
+			<type>1</type>
+			<locationURI>PARENT-3-PROJECT_LOC/bsp/env/coreplexip-e51-arty/init.o</locationURI>
+		</link>
+		<link>
+			<name>bsp/env/coreplexip-e51-arty/link.lds</name>
+			<type>1</type>
+			<locationURI>PARENT-3-PROJECT_LOC/bsp/env/coreplexip-e51-arty/link.lds</locationURI>
+		</link>
+		<link>
+			<name>bsp/env/coreplexip-e51-arty/openocd.cfg</name>
+			<type>1</type>
+			<locationURI>PARENT-3-PROJECT_LOC/bsp/env/coreplexip-e51-arty/openocd.cfg</locationURI>
+		</link>
+		<link>
+			<name>bsp/env/coreplexip-e51-arty/platform.h</name>
+			<type>1</type>
+			<locationURI>PARENT-3-PROJECT_LOC/bsp/env/coreplexip-e51-arty/platform.h</locationURI>
+		</link>
+		<link>
+			<name>bsp/env/coreplexip-e51-arty/settings.mk</name>
+			<type>1</type>
+			<locationURI>PARENT-3-PROJECT_LOC/bsp/env/coreplexip-e51-arty/settings.mk</locationURI>
+		</link>
+		<link>
+			<name>bsp/include/sifive/.DS_Store</name>
+			<type>1</type>
+			<locationURI>PARENT-3-PROJECT_LOC/bsp/include/sifive/.DS_Store</locationURI>
+		</link>
+		<link>
+			<name>bsp/include/sifive/bits.h</name>
+			<type>1</type>
+			<locationURI>PARENT-3-PROJECT_LOC/bsp/include/sifive/bits.h</locationURI>
+		</link>
+		<link>
+			<name>bsp/include/sifive/const.h</name>
+			<type>1</type>
+			<locationURI>PARENT-3-PROJECT_LOC/bsp/include/sifive/const.h</locationURI>
+		</link>
+		<link>
+			<name>bsp/include/sifive/devices</name>
+			<type>2</type>
+			<locationURI>virtual:/virtual</locationURI>
+		</link>
+		<link>
+			<name>bsp/include/sifive/sections.h</name>
+			<type>1</type>
+			<locationURI>PARENT-3-PROJECT_LOC/bsp/include/sifive/sections.h</locationURI>
+		</link>
+		<link>
+			<name>bsp/include/sifive/smp.h</name>
+			<type>1</type>
+			<locationURI>PARENT-3-PROJECT_LOC/bsp/include/sifive/smp.h</locationURI>
+		</link>
+		<link>
+			<name>bsp/include/sifive/devices/aon.h</name>
+			<type>1</type>
+			<locationURI>PARENT-3-PROJECT_LOC/bsp/include/sifive/devices/aon.h</locationURI>
+		</link>
+		<link>
+			<name>bsp/include/sifive/devices/clint.h</name>
+			<type>1</type>
+			<locationURI>PARENT-3-PROJECT_LOC/bsp/include/sifive/devices/clint.h</locationURI>
+		</link>
+		<link>
+			<name>bsp/include/sifive/devices/gpio.h</name>
+			<type>1</type>
+			<locationURI>PARENT-3-PROJECT_LOC/bsp/include/sifive/devices/gpio.h</locationURI>
+		</link>
+		<link>
+			<name>bsp/include/sifive/devices/otp.h</name>
+			<type>1</type>
+			<locationURI>PARENT-3-PROJECT_LOC/bsp/include/sifive/devices/otp.h</locationURI>
+		</link>
+		<link>
+			<name>bsp/include/sifive/devices/plic.h</name>
+			<type>1</type>
+			<locationURI>PARENT-3-PROJECT_LOC/bsp/include/sifive/devices/plic.h</locationURI>
+		</link>
+		<link>
+			<name>bsp/include/sifive/devices/prci.h</name>
+			<type>1</type>
+			<locationURI>PARENT-3-PROJECT_LOC/bsp/include/sifive/devices/prci.h</locationURI>
+		</link>
+		<link>
+			<name>bsp/include/sifive/devices/pwm.h</name>
+			<type>1</type>
+			<locationURI>PARENT-3-PROJECT_LOC/bsp/include/sifive/devices/pwm.h</locationURI>
+		</link>
+		<link>
+			<name>bsp/include/sifive/devices/spi.h</name>
+			<type>1</type>
+			<locationURI>PARENT-3-PROJECT_LOC/bsp/include/sifive/devices/spi.h</locationURI>
+		</link>
+		<link>
+			<name>bsp/include/sifive/devices/uart.h</name>
+			<type>1</type>
+			<locationURI>PARENT-3-PROJECT_LOC/bsp/include/sifive/devices/uart.h</locationURI>
+		</link>
+	</linkedResources>
+</projectDescription>
diff --git a/FreedomStudio/E51FPGA/demo_gpio/demo_gpio Debug.launch b/FreedomStudio/E51FPGA/demo_gpio/demo_gpio Debug.launch
new file mode 100644
index 0000000..492c56b
--- /dev/null
+++ b/FreedomStudio/E51FPGA/demo_gpio/demo_gpio Debug.launch
@@ -0,0 +1,59 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<launchConfiguration type="ilg.gnuarmeclipse.debug.gdbjtag.openocd.launchConfigurationType">
+<booleanAttribute key="ilg.gnuarmeclipse.debug.gdbjtag.openocd.doContinue" value="true"/>
+<booleanAttribute key="ilg.gnuarmeclipse.debug.gdbjtag.openocd.doDebugInRam" value="false"/>
+<booleanAttribute key="ilg.gnuarmeclipse.debug.gdbjtag.openocd.doFirstReset" value="true"/>
+<booleanAttribute key="ilg.gnuarmeclipse.debug.gdbjtag.openocd.doGdbServerAllocateConsole" value="true"/>
+<booleanAttribute key="ilg.gnuarmeclipse.debug.gdbjtag.openocd.doGdbServerAllocateTelnetConsole" value="false"/>
+<booleanAttribute key="ilg.gnuarmeclipse.debug.gdbjtag.openocd.doSecondReset" value="true"/>
+<booleanAttribute key="ilg.gnuarmeclipse.debug.gdbjtag.openocd.doStartGdbServer" value="true"/>
+<booleanAttribute key="ilg.gnuarmeclipse.debug.gdbjtag.openocd.enableSemihosting" value="false"/>
+<stringAttribute key="ilg.gnuarmeclipse.debug.gdbjtag.openocd.firstResetType" value="init"/>
+<stringAttribute key="ilg.gnuarmeclipse.debug.gdbjtag.openocd.gdbClientOtherCommands" value="set mem inaccessible-by-default off&#10;set arch riscv:rv64"/>
+<stringAttribute key="ilg.gnuarmeclipse.debug.gdbjtag.openocd.gdbClientOtherOptions" value=""/>
+<stringAttribute key="ilg.gnuarmeclipse.debug.gdbjtag.openocd.gdbServerConnectionAddress" value=""/>
+<stringAttribute key="ilg.gnuarmeclipse.debug.gdbjtag.openocd.gdbServerExecutable" value="${FSBINDIR}/${openocd_executable}"/>
+<intAttribute key="ilg.gnuarmeclipse.debug.gdbjtag.openocd.gdbServerGdbPortNumber" value="3333"/>
+<stringAttribute key="ilg.gnuarmeclipse.debug.gdbjtag.openocd.gdbServerLog" value=""/>
+<stringAttribute key="ilg.gnuarmeclipse.debug.gdbjtag.openocd.gdbServerOther" value="-f openocd.cfg"/>
+<intAttribute key="ilg.gnuarmeclipse.debug.gdbjtag.openocd.gdbServerTelnetPortNumber" value="4444"/>
+<stringAttribute key="ilg.gnuarmeclipse.debug.gdbjtag.openocd.otherInitCommands" value=""/>
+<stringAttribute key="ilg.gnuarmeclipse.debug.gdbjtag.openocd.otherRunCommands" value=""/>
+<stringAttribute key="ilg.gnuarmeclipse.debug.gdbjtag.openocd.secondResetType" value="halt"/>
+<stringAttribute key="org.eclipse.cdt.debug.gdbjtag.core.imageFileName" value=""/>
+<stringAttribute key="org.eclipse.cdt.debug.gdbjtag.core.imageOffset" value=""/>
+<stringAttribute key="org.eclipse.cdt.debug.gdbjtag.core.ipAddress" value="localhost"/>
+<stringAttribute key="org.eclipse.cdt.debug.gdbjtag.core.jtagDevice" value="GNU ARM OpenOCD"/>
+<booleanAttribute key="org.eclipse.cdt.debug.gdbjtag.core.loadImage" value="true"/>
+<booleanAttribute key="org.eclipse.cdt.debug.gdbjtag.core.loadSymbols" value="true"/>
+<stringAttribute key="org.eclipse.cdt.debug.gdbjtag.core.pcRegister" value=""/>
+<intAttribute key="org.eclipse.cdt.debug.gdbjtag.core.portNumber" value="3333"/>
+<booleanAttribute key="org.eclipse.cdt.debug.gdbjtag.core.setPcRegister" value="false"/>
+<booleanAttribute key="org.eclipse.cdt.debug.gdbjtag.core.setResume" value="false"/>
+<booleanAttribute key="org.eclipse.cdt.debug.gdbjtag.core.setStopAt" value="true"/>
+<stringAttribute key="org.eclipse.cdt.debug.gdbjtag.core.stopAt" value="main"/>
+<stringAttribute key="org.eclipse.cdt.debug.gdbjtag.core.symbolsFileName" value=""/>
+<stringAttribute key="org.eclipse.cdt.debug.gdbjtag.core.symbolsOffset" value=""/>
+<booleanAttribute key="org.eclipse.cdt.debug.gdbjtag.core.useFileForImage" value="false"/>
+<booleanAttribute key="org.eclipse.cdt.debug.gdbjtag.core.useFileForSymbols" value="false"/>
+<booleanAttribute key="org.eclipse.cdt.debug.gdbjtag.core.useProjBinaryForImage" value="true"/>
+<booleanAttribute key="org.eclipse.cdt.debug.gdbjtag.core.useProjBinaryForSymbols" value="true"/>
+<booleanAttribute key="org.eclipse.cdt.debug.gdbjtag.core.useRemoteTarget" value="true"/>
+<stringAttribute key="org.eclipse.cdt.dsf.gdb.DEBUG_NAME" value="${FSBINDIR}/${cross_prefix}gdb${cross_suffix}"/>
+<booleanAttribute key="org.eclipse.cdt.dsf.gdb.UPDATE_THREADLIST_ON_SUSPEND" value="false"/>
+<intAttribute key="org.eclipse.cdt.launch.ATTR_BUILD_BEFORE_LAUNCH_ATTR" value="2"/>
+<stringAttribute key="org.eclipse.cdt.launch.COREFILE_PATH" value=""/>
+<stringAttribute key="org.eclipse.cdt.launch.DEBUGGER_REGISTER_GROUPS" value=""/>
+<stringAttribute key="org.eclipse.cdt.launch.PROGRAM_NAME" value="Debug/demo_gpio.elf"/>
+<stringAttribute key="org.eclipse.cdt.launch.PROJECT_ATTR" value="demo_gpio"/>
+<booleanAttribute key="org.eclipse.cdt.launch.PROJECT_BUILD_CONFIG_AUTO_ATTR" value="true"/>
+<stringAttribute key="org.eclipse.cdt.launch.PROJECT_BUILD_CONFIG_ID_ATTR" value="org.eclipse.cdt.cross.riscv.gnu.linux.elf.debug.83943911"/>
+<listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_PATHS">
+<listEntry value="/demo_gpio"/>
+</listAttribute>
+<listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_TYPES">
+<listEntry value="4"/>
+</listAttribute>
+<stringAttribute key="org.eclipse.dsf.launch.MEMORY_BLOCKS" value="&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot; standalone=&quot;no&quot;?&gt;&#10;&lt;memoryBlockExpressionList context=&quot;Context string&quot;/&gt;&#10;"/>
+<stringAttribute key="process_factory_id" value="org.eclipse.cdt.dsf.gdb.GdbProcessFactory"/>
+</launchConfiguration>
diff --git a/FreedomStudio/E51FPGA/demo_gpio/link.lds b/FreedomStudio/E51FPGA/demo_gpio/link.lds
new file mode 100644
index 0000000..45a82d7
--- /dev/null
+++ b/FreedomStudio/E51FPGA/demo_gpio/link.lds
@@ -0,0 +1,167 @@
+OUTPUT_ARCH( "riscv" )
+
+ENTRY( _start )
+
+MEMORY
+{
+  flash (rxai!w) : ORIGIN = 0x40400000, LENGTH = 512M
+  ram (wxa!ri) : ORIGIN = 0x80000000, LENGTH = 16K
+}
+
+PHDRS
+{
+  flash PT_LOAD;
+  ram_init PT_LOAD;
+  ram PT_NULL;
+}
+
+SECTIONS
+{
+  __stack_size = DEFINED(__stack_size) ? __stack_size : 2K;
+
+  .init           :
+  {
+    KEEP (*(SORT_NONE(.init)))
+  } >flash AT>flash :flash
+
+  .text           :
+  {
+    *(.text.unlikely .text.unlikely.*)
+    *(.text.startup .text.startup.*)
+    *(.text .text.*)
+    *(.gnu.linkonce.t.*)
+  } >flash AT>flash :flash
+
+  .fini           :
+  {
+    KEEP (*(SORT_NONE(.fini)))
+  } >flash AT>flash :flash
+
+  PROVIDE (__etext = .);
+  PROVIDE (_etext = .);
+  PROVIDE (etext = .);
+
+  .rodata         :
+  {
+    *(.rdata)
+    *(.rodata .rodata.*)
+    *(.gnu.linkonce.r.*)
+  } >flash AT>flash :flash
+
+  . = ALIGN(4);
+
+  .preinit_array  :
+  {
+    PROVIDE_HIDDEN (__preinit_array_start = .);
+    KEEP (*(.preinit_array))
+    PROVIDE_HIDDEN (__preinit_array_end = .);
+  } >flash AT>flash :flash
+
+  .init_array     :
+  {
+    PROVIDE_HIDDEN (__init_array_start = .);
+    KEEP (*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))
+    KEEP (*(.init_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .ctors))
+    PROVIDE_HIDDEN (__init_array_end = .);
+  } >flash AT>flash :flash
+
+  .fini_array     :
+  {
+    PROVIDE_HIDDEN (__fini_array_start = .);
+    KEEP (*(SORT_BY_INIT_PRIORITY(.fini_array.*) SORT_BY_INIT_PRIORITY(.dtors.*)))
+    KEEP (*(.fini_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .dtors))
+    PROVIDE_HIDDEN (__fini_array_end = .);
+  } >flash AT>flash :flash
+
+  .ctors          :
+  {
+    /* gcc uses crtbegin.o to find the start of
+       the constructors, so we make sure it is
+       first.  Because this is a wildcard, it
+       doesn't matter if the user does not
+       actually link against crtbegin.o; the
+       linker won't look for a file to match a
+       wildcard.  The wildcard also means that it
+       doesn't matter which directory crtbegin.o
+       is in.  */
+    KEEP (*crtbegin.o(.ctors))
+    KEEP (*crtbegin?.o(.ctors))
+    /* We don't want to include the .ctor section from
+       the crtend.o file until after the sorted ctors.
+       The .ctor section from the crtend file contains the
+       end of ctors marker and it must be last */
+    KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .ctors))
+    KEEP (*(SORT(.ctors.*)))
+    KEEP (*(.ctors))
+  } >flash AT>flash :flash
+
+  .dtors          :
+  {
+    KEEP (*crtbegin.o(.dtors))
+    KEEP (*crtbegin?.o(.dtors))
+    KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors))
+    KEEP (*(SORT(.dtors.*)))
+    KEEP (*(.dtors))
+  } >flash AT>flash :flash
+
+  .lalign         :
+  {
+    . = ALIGN(4);
+    PROVIDE( _data_lma = . );
+  } >flash AT>flash :flash
+
+  .dalign         :
+  {
+    . = ALIGN(4);
+    PROVIDE( _data = . );
+  } >ram AT>flash :ram_init
+
+  .data          :
+  {
+    *(.data .data.*)
+    *(.gnu.linkonce.d.*)
+  } >ram AT>flash :ram_init
+
+  .srodata        :
+  {
+    PROVIDE( _gp = . + 0x800 );
+    *(.srodata.cst16)
+    *(.srodata.cst8)
+    *(.srodata.cst4)
+    *(.srodata.cst2)
+    *(.srodata .srodata.*)
+  } >ram AT>flash :ram_init
+
+  .sdata          :
+  {
+    *(.sdata .sdata.*)
+    *(.gnu.linkonce.s.*)
+  } >ram AT>flash :ram_init
+
+  . = ALIGN(4);
+  PROVIDE( _edata = . );
+  PROVIDE( edata = . );
+
+  PROVIDE( _fbss = . );
+  PROVIDE( __bss_start = . );
+  .bss            :
+  {
+    *(.sbss*)
+    *(.gnu.linkonce.sb.*)
+    *(.bss .bss.*)
+    *(.gnu.linkonce.b.*)
+    *(COMMON)
+    . = ALIGN(4);
+  } >ram AT>ram :ram
+
+  . = ALIGN(8);
+  PROVIDE( _end = . );
+  PROVIDE( end = . );
+
+  .stack ORIGIN(ram) + LENGTH(ram) - __stack_size :
+  {
+    PROVIDE( _heap_end = . );
+    . = __stack_size;
+    PROVIDE( _sp = . );
+  } >ram AT>ram :ram
+}
diff --git a/FreedomStudio/E51FPGA/demo_gpio/openocd.cfg b/FreedomStudio/E51FPGA/demo_gpio/openocd.cfg
new file mode 100644
index 0000000..8b382dc
--- /dev/null
+++ b/FreedomStudio/E51FPGA/demo_gpio/openocd.cfg
@@ -0,0 +1,31 @@
+# JTAG adapter setup
+adapter_khz     10000
+
+interface ftdi
+ftdi_device_desc "Olimex OpenOCD JTAG ARM-USB-TINY-H"
+ftdi_vid_pid 0x15ba 0x002a
+
+ftdi_layout_init 0x0808 0x0a1b
+ftdi_layout_signal nSRST -oe 0x0200
+#ftdi_layout_signal nTRST -data 0x0100 -oe 0x0100
+ftdi_layout_signal LED -data 0x0800
+
+set _CHIPNAME riscv
+jtag newtap $_CHIPNAME cpu -irlen 5 -expected-id 0x20000001
+
+set _TARGETNAME $_CHIPNAME.cpu
+
+target create $_TARGETNAME.0 riscv -chain-position $_TARGETNAME
+$_TARGETNAME.0 configure -work-area-phys 0x80000000 -work-area-size 10000 -work-area-backup 1
+
+# Un-comment these two flash lines if you have a SPI flash and want to write
+# it.
+flash bank spi0 fespi 0x40000000 0 0 0 $_TARGETNAME.0 0x20004000
+init
+if {[ info exists pulse_srst]} {
+  ftdi_set_signal nSRST 0
+  ftdi_set_signal nSRST z
+}
+halt
+flash protect 0 64 last off
+echo "Ready for Remote Connections"