OctoClock firmware upgrade, added host driver

* OctoClock can communicate with UHD over Ethernet
* Can read NMEA strings from GPSDO and send to host
* Added multi_usrp_clock class for clock devices
* uhd::device can now filter to return only USRP devices or clock devices
* New OctoClock bootloader can accept firmware download over Ethernet
* Added octoclock_burn_eeprom,octoclock_firmware_burner utilities
* Added test_clock_synch example to show clock API

1 files changed, 47 insertions, 0 deletions

diff --git a/firmware/octoclock/octoclock_r4/CMakeLists.txt b/firmware/octoclock/octoclock_r4/CMakeLists.txt
new file mode 100644
index 000000000..a030d3249
--- /dev/null
+++ b/firmware/octoclock/octoclock_r4/CMakeLists.txt
@@ -0,0 +1,47 @@
+#
+# Copyright 2014 Ettus Research LLC
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+add_executable(octoclock_r4_fw.elf octoclock_r4_main.c)
+target_link_libraries(octoclock_r4_fw.elf octoclock)
+
+add_custom_command(
+    OUTPUT ${CMAKE_BINARY_DIR}/octoclock_r4_fw.bin
+    DEPENDS octoclock_r4_fw.elf
+    COMMENT "Generating octoclock_r4_fw.bin"
+    COMMAND ${AVR_OBJCOPY} -O binary ${CMAKE_CURRENT_BINARY_DIR}/octoclock_r4_fw.elf ${CMAKE_BINARY_DIR}/octoclock_r4_fw.bin
+)
+add_custom_target(
+    octoclock_r4_fw_bin ALL
+    DEPENDS ${CMAKE_BINARY_DIR}/octoclock_r4_fw.bin
+)
+add_custom_command(
+    OUTPUT ${CMAKE_BINARY_DIR}/octoclock_r4_fw.hex
+    DEPENDS octoclock_r4_fw.elf
+    COMMENT "Generating octoclock_r4_fw.hex"
+    COMMAND ${AVR_OBJCOPY} -O ihex ${CMAKE_CURRENT_BINARY_DIR}/octoclock_r4_fw.elf ${CMAKE_BINARY_DIR}/octoclock_r4_fw.hex
+)
+add_custom_target(
+    octoclock_r4_fw_hex ALL
+    DEPENDS ${CMAKE_BINARY_DIR}/octoclock_r4_fw.hex
+)
+add_custom_target(
+    upload_r4
+    ${AVRDUDE} -p atmega128 -c ${PROGRAMMER} -P usb -U efuse:w:0xFF:m -U hfuse:w:0x81:m -U lfuse:w:0xFF:m -U flash:w:octoclock_r4_fw.hex:i
+    WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
+    DEPENDS octoclock_r4_fw_hex
+    COMMENT "Uploading OctoClock firmware to device with ${PROGRAMMER}"
+)