20 files changed, 899 insertions, 0 deletions

diff --git a/host/apps/omap_debug/Makefile b/host/apps/omap_debug/Makefile
new file mode 100644
index 000000000..13b834e28
--- /dev/null
+++ b/host/apps/omap_debug/Makefile
@@ -0,0 +1,19 @@
+CFLAGS=-Wall
+
+all : usrp-e-spi usrp-e-i2c usrp-e-rw usrp-e-uart
+
+usrp-e-spi : usrp-e-spi.c
+
+usrp-e-i2c : usrp-e-i2c.c
+
+usrp-e-rw : usrp-e-rw.c
+	gcc -o $@ $< -lpthread
+
+usrp-e-uart : usrp-e-uart.c
+
+clean :
+	rm -f usrp-e-spi
+	rm -f usrp-e-i2c
+	rm -f usrp-e-rw
+	rm -f usrp-e-uart
+
diff --git a/host/apps/omap_debug/README b/host/apps/omap_debug/README
new file mode 100644
index 000000000..bbe0c2cc4
--- /dev/null
+++ b/host/apps/omap_debug/README
@@ -0,0 +1 @@
+OMAP development tools go here
diff --git a/host/apps/omap_debug/fetch-bin.sh b/host/apps/omap_debug/fetch-bin.sh
new file mode 100755
index 000000000..beff7ffcd
--- /dev/null
+++ b/host/apps/omap_debug/fetch-bin.sh
@@ -0,0 +1,2 @@
+scp balister@astro:/workspace/usrp1-e-dev/u1e.bin .
+sync
diff --git a/host/apps/omap_debug/fetch-kernel.sh b/host/apps/omap_debug/fetch-kernel.sh
new file mode 100755
index 000000000..7023f5d28
--- /dev/null
+++ b/host/apps/omap_debug/fetch-kernel.sh
@@ -0,0 +1,3 @@
+scp balister@192.168.1.167:src/git/kernel_usrp/arch/arm/boot/uImage /media/mmcblk0p1/uImage
+sync
+
diff --git a/host/apps/omap_debug/fetch-module.sh b/host/apps/omap_debug/fetch-module.sh
new file mode 100755
index 000000000..45cf1f052
--- /dev/null
+++ b/host/apps/omap_debug/fetch-module.sh
@@ -0,0 +1,3 @@
+scp balister@192.168.1.167:src/git/kernel_usrp/drivers/misc/usrp_e.ko /lib/modules/2.6.33-rc3/kernel/drivers/misc
+scp balister@192.168.1.167:src/git/kernel_usrp/include/linux/usrp_e.h .
+sync
diff --git a/host/apps/omap_debug/fetch-u-boot.sh b/host/apps/omap_debug/fetch-u-boot.sh
new file mode 100755
index 000000000..63d4edcf2
--- /dev/null
+++ b/host/apps/omap_debug/fetch-u-boot.sh
@@ -0,0 +1,3 @@
+scp balister@astro:/workspace/usrp1-e-dev/u-boot-overo/u-boot.bin /media/mmcblk0p1/
+sync
+
diff --git a/host/apps/omap_debug/fpga-downloader.cc b/host/apps/omap_debug/fpga-downloader.cc
new file mode 100644
index 000000000..fb96b64a3
--- /dev/null
+++ b/host/apps/omap_debug/fpga-downloader.cc
@@ -0,0 +1,251 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2003,2004,2008,2009 Free Software Foundation, Inc.
+ *
+ * This file is part of GNU Radio
+ *
+ * GNU Radio 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, or (at your option)
+ * any later version.
+ *
+ * GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+*/
+
+#include <iostream>
+#include <sstream>
+#include <fstream>
+#include <string>
+#include <cstdlib>
+
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+
+#include <linux/spi/spidev.h>
+
+/*
+ * Configuration connections
+ *
+ * CCK    - MCSPI1_CLK
+ * DIN    - MCSPI1_MOSI
+ * PROG_B - GPIO_175     - output (change mux)
+ * DONE   - GPIO_173     - input  (change mux)
+ * INIT_B - GPIO_114     - input  (change mux)
+ *
+*/
+
+const unsigned int PROG_B = 175;
+const unsigned int DONE   = 173;
+const unsigned int INIT_B = 114;
+
+static std::string bit_file = "safe_u1e.bin";
+
+const int BUF_SIZE = 4096;
+
+enum gpio_direction {IN, OUT};
+
+class gpio {
+	public:
+
+	gpio(unsigned int gpio_num, gpio_direction pin_direction);
+
+	bool get_value();
+	void set_value(bool state);
+
+	private:
+
+	std::stringstream base_path;
+	std::fstream value_file;	
+};
+
+class spidev {
+	public:
+
+	spidev(std::string dev_name);
+	~spidev();
+
+	void send(char *wbuf, char *rbuf, unsigned int nbytes);
+
+	private:
+
+	int fd;
+
+};
+
+gpio::gpio(unsigned int gpio_num, gpio_direction pin_direction)
+{
+	std::fstream export_file;
+
+	export_file.open("/sys/class/gpio/export", std::ios::out);
+	if (!export_file.is_open())  ///\todo Poor error handling
+		std::cout << "Failed to open gpio export file." << std::endl;
+
+	export_file << gpio_num << std::endl;
+
+	base_path << "/sys/class/gpio/gpio" << gpio_num << std::flush;
+
+	std::fstream direction_file;
+	std::string direction_file_name;
+
+	direction_file_name = base_path.str() + "/direction";
+
+	direction_file.open(direction_file_name.c_str()); 
+	if (!direction_file.is_open())
+		std::cout << "Failed to open direction file." << std::endl;
+	if (pin_direction == OUT)
+		direction_file << "out" << std::endl;
+	else
+		direction_file << "in" << std::endl;
+
+	std::string value_file_name;
+
+	value_file_name = base_path.str() + "/value";
+
+	value_file.open(value_file_name.c_str(), std::ios_base::in | std::ios_base::out);
+	if (!value_file.is_open())
+		std::cout << "Failed to open value file." << std::endl;
+}
+
+bool gpio::get_value()
+{
+
+	std::string val;
+
+	std::getline(value_file, val);
+	value_file.seekg(0);
+
+	if (val == "0")
+		return false;
+	else if (val == "1")
+		return true;
+	else
+		std::cout << "Data read from value file|" << val << "|" << std::endl;
+
+	return false;
+}
+
+void gpio::set_value(bool state)
+{
+
+	if (state)
+		value_file << "1" << std::endl;
+	else
+		value_file << "0" << std::endl;
+}
+
+static void prepare_fpga_for_configuration(gpio &prog, gpio &init)
+{
+
+	prog.set_value(true);
+	prog.set_value(false);
+	prog.set_value(true);
+
+#if 0
+	bool ready_to_program(false);
+	unsigned int count(0);
+	do {
+		ready_to_program = init.get_value();
+		count++;
+
+		sleep(1);
+	} while (count < 10 && !ready_to_program);
+
+	if (count == 10) {
+		std::cout << "FPGA not ready for programming." << std::endl;
+		exit(-1);
+	}
+#endif
+}
+
+spidev::spidev(std::string fname)
+{
+	int ret;
+	int mode = 0;
+	int speed = 12000000;
+	int bits = 8;
+
+	fd = open(fname.c_str(), O_RDWR);
+
+	ret = ioctl(fd, SPI_IOC_WR_MODE, &mode);
+	ret = ioctl(fd, SPI_IOC_WR_MAX_SPEED_HZ, &speed);
+	ret = ioctl(fd, SPI_IOC_WR_BITS_PER_WORD, &bits);
+}
+	
+
+spidev::~spidev()
+{
+	close(fd);
+}
+
+void spidev::send(char *buf, char *rbuf, unsigned int nbytes)
+{
+	int ret;
+
+	struct spi_ioc_transfer tr;
+	tr.tx_buf = (unsigned long) buf;
+	tr.rx_buf = (unsigned long) rbuf;
+	tr.len = nbytes;
+	tr.delay_usecs = 0;
+	tr.speed_hz = 48000000;
+	tr.bits_per_word = 8;
+
+	ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr);	
+
+}
+
+static void send_file_to_fpga(std::string &file_name, gpio &error, gpio &done)
+{
+	std::ifstream bitstream;
+
+	std::cout << "File name - " << file_name.c_str() << std::endl;
+
+	bitstream.open(file_name.c_str(), std::ios::binary);
+	if (!bitstream.is_open())
+		std::cout << "File " << file_name << " not opened succesfully." << std::endl;
+
+	spidev spi("/dev/spidev1.0");
+	char buf[BUF_SIZE];
+	char rbuf[BUF_SIZE];
+
+	do {
+		bitstream.read(buf, BUF_SIZE);
+		spi.send(buf, rbuf, bitstream.gcount());
+
+		if (error.get_value())
+			std::cout << "INIT_B went high, error occured." << std::endl;
+
+		if (!done.get_value())
+			std::cout << "Configuration complete." << std::endl;
+
+	} while (bitstream.gcount() == BUF_SIZE);
+}
+
+int main(int argc, char *argv[])
+{
+
+	gpio gpio_prog_b(PROG_B, OUT);
+	gpio gpio_init_b(INIT_B, IN);
+	gpio gpio_done  (DONE,   IN);
+
+	if (argc == 2)
+		bit_file = argv[1];
+
+	std::cout << "FPGA config file: " << bit_file << std::endl;
+
+	prepare_fpga_for_configuration(gpio_prog_b, gpio_init_b);
+
+	std::cout << "Done = " << gpio_done.get_value() << std::endl;
+
+	send_file_to_fpga(bit_file, gpio_init_b, gpio_done);
+}
+
diff --git a/host/apps/omap_debug/set_debug_pins.py b/host/apps/omap_debug/set_debug_pins.py
new file mode 100755
index 000000000..fdd085c9e
--- /dev/null
+++ b/host/apps/omap_debug/set_debug_pins.py
@@ -0,0 +1,34 @@
+#!/usr/bin/python
+
+import os
+
+# Memory Map
+misc_base = 0 << 7
+uart_base = 1 << 7
+spi_base = 2 << 7
+i2c_base = 3 << 7
+gpio_base = 4 << 7
+settings_base = 5 << 7
+
+# GPIO offset
+gpio_pins = 0
+gpio_ddr = 4
+gpio_ctrl_lo = 8
+gpio_ctrl_hi = 12
+
+def set_reg(reg, val):
+    os.system("./usrp1-e-ctl w %d 1 %d" % (reg,val))
+
+def get_reg(reg):
+    fin,fout = os.popen4("./usrp1-e-ctl r %d 1" % (reg,))
+    print fout.read()
+
+# Set DDRs to output
+set_reg(gpio_base+gpio_ddr, 0xFFFF)
+set_reg(gpio_base+gpio_ddr+2, 0xFFFF)
+
+# Set CTRL to Debug #0 ( A is for debug 0, F is for debug 1 )
+set_reg(gpio_base+gpio_ctrl_lo, 0xAAAA)
+set_reg(gpio_base+gpio_ctrl_lo+2, 0xAAAA)
+set_reg(gpio_base+gpio_ctrl_hi, 0xAAAA)
+set_reg(gpio_base+gpio_ctrl_hi+2, 0xAAAA)
diff --git a/host/apps/omap_debug/test.c b/host/apps/omap_debug/test.c
new file mode 100644
index 000000000..36f4d700a
--- /dev/null
+++ b/host/apps/omap_debug/test.c
@@ -0,0 +1,34 @@
+#include <stdio.h>
+
+void
+main()
+{
+  int x;
+  char *y;
+  long long z;
+
+  x = 0x01020304;
+  z = 0x0102030405060708LL;
+
+  printf("%x\n",x);
+  y = (char *)&x;
+  printf("%x\n",y[0]);
+  printf("%x\n",y[1]);
+  printf("%x\n",y[2]);
+  printf("%x\n",y[3]);
+
+  printf("Printing z ...\n");
+  printf("%llx\n",z);
+  printf("Printing z done\n");
+
+  y = (char *)&z;
+  printf("%x\n",y[0]);
+  printf("%x\n",y[1]);
+  printf("%x\n",y[2]);
+  printf("%x\n",y[3]);
+  printf("%x\n",y[4]);
+  printf("%x\n",y[5]);
+  printf("%x\n",y[6]);
+  printf("%x\n",y[7]);
+}
+
diff --git a/host/apps/omap_debug/u1e-read-stream.c b/host/apps/omap_debug/u1e-read-stream.c
new file mode 100644
index 000000000..4e4c21d9e
--- /dev/null
+++ b/host/apps/omap_debug/u1e-read-stream.c
@@ -0,0 +1,21 @@
+#include <stdio.h>
+#include <sys/types.h>
+#include <fcntl.h>
+
+int main(int rgc, char *argv[])
+{
+	int fp, cnt, n;
+	short buf[1024];
+
+	n = 0;
+
+	fp = open("/dev/usrp1_e0", O_RDONLY);
+	printf("fp = %d\n", fp);
+
+	do {
+		cnt = read(fp, buf, 2048);
+		n++;
+//		printf("Bytes read - %d\n", cnt);
+	} while(n < 10*512);
+	printf("Data - %hX\n", buf[0]);
+}
diff --git a/host/apps/omap_debug/usrp-e-ctl.c b/host/apps/omap_debug/usrp-e-ctl.c
new file mode 100644
index 000000000..045e7ce19
--- /dev/null
+++ b/host/apps/omap_debug/usrp-e-ctl.c
@@ -0,0 +1,52 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <linux/ioctl.h>
+
+#include "usrp1_e.h"
+
+// Usage: usrp1_e_ctl w|r offset number_of_values val1 val2 ....
+
+int main(int argc, char *argv[])
+{
+	int fp, i, cnt, ret;
+	struct usrp1_e_ctl *ctl_data;
+
+	if (argc < 4) {
+		printf("Usage: usrp1_e_ctl w|r offset number_of_values val1 val2 ....\n");
+		exit(-1);
+	}
+
+	cnt = atoi(argv[3]);
+
+	ctl_data = malloc(sizeof(struct usrp1_e_ctl) + cnt*2);
+
+	ctl_data->offset = atoi(argv[2]);
+	ctl_data->count  = cnt;
+
+	printf("Sizeof usrp1_e_ctl struct = %d\n", sizeof(struct usrp1_e_ctl));
+
+	fp = open("/dev/usrp1_e0", O_RDWR);
+	printf("fp = %d\n", fp);
+
+	if (*argv[1] == 'w') {
+		for (i=0; i<cnt; i++)
+			ctl_data->buf[i] = atoi(argv[4+i]);
+
+		ret = ioctl(fp, USRP1_E_WRITE_CTL, ctl_data);
+		printf("Return value from write ioctl = %d\n", ret);
+	}
+
+	if (*argv[1] == 'r') {
+		ret = ioctl(fp, USRP1_E_READ_CTL, ctl_data);
+		printf("Return value from write ioctl = %d\n", ret);
+
+		for (i=0; i<ctl_data->count; i++) {
+			if (!(i%8))
+				printf("\nData at %4d :", i);
+			printf(" %5d", ctl_data->buf[i]);
+		}
+		printf("\n");
+	}
+}
diff --git a/host/apps/omap_debug/usrp-e-i2c.c b/host/apps/omap_debug/usrp-e-i2c.c
new file mode 100644
index 000000000..19d64731b
--- /dev/null
+++ b/host/apps/omap_debug/usrp-e-i2c.c
@@ -0,0 +1,71 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+
+#include "usrp_e.h"
+
+// Usage: usrp_e_i2c w address data0 data1 data 2 ....
+// Usage: usrp_e_i2c r address count
+
+int main(int argc, char *argv[])
+{
+	int fp, ret, i;
+	struct usrp_e_i2c *i2c_msg;
+	int direction, address, count;
+
+	if (argc < 3) {
+		printf("Usage: usrp_e_i2c w address data0 data1 data2 ...\n");
+		printf("Usage: usrp_e_i2c r address count\n");
+		exit(-1);
+	}
+
+	if (strcmp(argv[1], "r") == 0) {
+		direction = 0;
+	} else if (strcmp(argv[1], "w") == 0) {
+		direction = 1;
+	} else {
+		return -1;
+	}
+
+	address = atoi(argv[2]);
+
+	fp = open("/dev/usrp_e0", O_RDWR);
+	printf("fp = %d\n", fp);
+
+	if (direction) {
+		count = argc - 3;
+	} else {
+		count = atoi(argv[3]);
+	}
+
+	i2c_msg = malloc(sizeof(i2c_msg) + count * sizeof(char));
+
+	i2c_msg->addr = address;
+	i2c_msg->len = count;
+
+	if (direction) {
+		// Write
+
+		for (i=0; i<count; i++) {
+			i2c_msg->data[i] = atoi(argv[3+i]);
+		}
+
+		ret = ioctl(fp, USRP_E_I2C_WRITE, i2c_msg);
+		printf("Return value from i2c_write ioctl: %d\n", ret);
+	} else {
+		// Read
+
+		ret = ioctl(fp, USRP_E_I2C_READ, i2c_msg);
+
+		printf("Ioctl: %d Data read :", ret);
+		for (i=0; i<count; i++) {
+			printf(" %X", i2c_msg->data[i]);
+		}
+		printf("\n");
+			
+	}
+	return 0;
+}
diff --git a/host/apps/omap_debug/usrp-e-ram.c b/host/apps/omap_debug/usrp-e-ram.c
new file mode 100644
index 000000000..d548f7ccd
--- /dev/null
+++ b/host/apps/omap_debug/usrp-e-ram.c
@@ -0,0 +1,25 @@
+#include <stdio.h>
+#include <sys/types.h>
+#include <fcntl.h>
+
+int main(int rgc, char *argv[])
+{
+	int fp, i, cnt;
+	unsigned short buf[1024];
+	unsigned short buf_rb[1024];
+
+	fp = open("/dev/usrp1_e0", O_RDWR);
+	printf("fp = %d\n", fp);
+
+	for (i=0; i<1024; i++)
+		buf[i] = i*256; 
+	write(fp, buf, 2048);
+	read(fp, buf_rb, 2048);
+
+	printf("Read back %hX %hX\n", buf_rb[0], buf_rb[1]);
+
+	for (i=0; i<1024; i++) {
+		if (buf[i] != buf_rb[i])
+			printf("Read - %hX, expected - %hX\n", buf_rb[i], buf[i]);
+	}
+}
diff --git a/host/apps/omap_debug/usrp-e-read.c b/host/apps/omap_debug/usrp-e-read.c
new file mode 100644
index 000000000..c28f018d5
--- /dev/null
+++ b/host/apps/omap_debug/usrp-e-read.c
@@ -0,0 +1,18 @@
+#include <stdio.h>
+#include <sys/types.h>
+#include <fcntl.h>
+
+int main(int rgc, char *argv[])
+{
+	int fp, cnt;
+	short buf[1024];
+
+	fp = open("/dev/usrp1_e0", O_RDONLY);
+	printf("fp = %d\n", fp);
+
+	do {
+	cnt = read(fp, buf, 2048);
+//	printf("Bytes read - %d\n", cnt);
+	} while(1);
+	printf("Data - %hX\n", buf[0]);
+}
diff --git a/host/apps/omap_debug/usrp-e-rw.c b/host/apps/omap_debug/usrp-e-rw.c
new file mode 100644
index 000000000..5607166b0
--- /dev/null
+++ b/host/apps/omap_debug/usrp-e-rw.c
@@ -0,0 +1,97 @@
+#include <stdio.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+struct pkt {
+	int checksum;
+	int seq_num;
+	short data[1020];
+};
+
+static int fp;
+
+static int calc_checksum(struct pkt *p)
+{
+	int i, sum;
+
+	i = 0;
+	sum = 0;
+
+	for (i=0; i<1020; i++)
+		sum += p->data[i];
+
+	sum += p->seq_num;
+
+	return sum;
+}
+
+static void *read_thread(void *threadid)
+{
+	int cnt, prev_seq_num;
+	struct pkt rx_data;
+
+	printf("Greetings from the reading thread!\n");
+
+	prev_seq_num = 0;
+
+	while (1) {
+		cnt = read(fp, &rx_data, 2048);
+
+		if (rx_data.seq_num != prev_seq_num + 1)
+			printf("Sequence number fail, current = %d, previous = %d\n",
+				rx_data.seq_num, prev_seq_num);
+		prev_seq_num = rx_data.seq_num;
+
+		if (calc_checksum(&rx_data) != rx_data.checksum)
+			printf("Checksum fail packet = %d, expected = %d\n",
+				calc_checksum(&rx_data), rx_data.checksum);
+	}
+
+}
+
+static void *write_thread(void *threadid)
+{
+	int seq_number, i, cnt;
+	struct pkt tx_data;
+
+	printf("Greetings from the write thread!\n");
+
+	for (i=0; i<1020; i++)
+		tx_data.data[i] = random() >> 16;
+
+
+	seq_number = 1;
+
+	while (1) {
+		tx_data.seq_num = seq_number++;
+		tx_data.checksum = calc_checksum(&tx_data);
+		cnt = write(fp, &tx_data, 2048);
+	}
+}
+
+
+int main(int argc, char *argv[])
+{
+	pthread_t tx, rx;
+	long int t;
+
+	fp = open("/dev/usrp_e0", O_RDWR);
+	printf("fp = %d\n", fp);
+
+	if (pthread_create(&rx, NULL, read_thread, (void *) t)) {
+		printf("Failed to create rx thread\n");
+		exit(-1);
+	}
+
+	if (pthread_create(&tx, NULL, write_thread, (void *) t)) {
+		printf("Failed to create tx thread\n");
+		exit(-1);
+	}
+
+	sleep(10000);
+
+	printf("Done sleeping\n");
+}
diff --git a/host/apps/omap_debug/usrp-e-spi.c b/host/apps/omap_debug/usrp-e-spi.c
new file mode 100644
index 000000000..de1409647
--- /dev/null
+++ b/host/apps/omap_debug/usrp-e-spi.c
@@ -0,0 +1,43 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+
+#include "usrp_e.h"
+
+// Usage: usrp_e_spi w|rb slave data
+
+int main(int argc, char *argv[])
+{
+	int fp, slave, length, data, ret;
+	struct usrp_e_spi spi_dat;
+
+	if (argc < 5) {
+		printf("Usage: usrp_e_spi w|rb slave transfer_length data\n");
+		exit(-1);
+	}
+
+	slave = atoi(argv[2]);
+	length = atoi(argv[3]);
+	data = atoi(argv[4]);
+
+	fp = open("/dev/usrp_e0", O_RDWR);
+	printf("fp = %d\n", fp);
+
+	spi_dat.slave = slave;
+	spi_dat.data = data;
+	spi_dat.length = length;
+	spi_dat.flags = 0;
+
+	if (*argv[1] == 'r') {
+		spi_dat.readback = 1;
+		ret = ioctl(fp, USRP_E_SPI, &spi_dat);
+		printf("Data returned = %d\n", ret);
+	} else {
+		spi_dat.readback = 0;
+		ioctl(fp, USRP_E_SPI, &spi_dat);
+	}
+
+	return 0;
+}
diff --git a/host/apps/omap_debug/usrp-e-uart.c b/host/apps/omap_debug/usrp-e-uart.c
new file mode 100644
index 000000000..239df9444
--- /dev/null
+++ b/host/apps/omap_debug/usrp-e-uart.c
@@ -0,0 +1,37 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <string.h>
+#include <sys/ioctl.h>
+
+#include "usrp_e.h"
+
+// Usage: usrp_e_uart <string>
+
+#define UART_WRITE_ADDR (0x80 + 12) 
+
+int main(int argc, char *argv[])
+{
+	int fp, i, ret;
+	struct usrp_e_ctl16 d;
+	char *str = argv[1];
+
+	if (argc < 2) {
+		printf("Usage: usrp_e_uart <string>n");
+		exit(-1);
+	}
+
+	fp = open("/dev/usrp_e0", O_RDWR);
+	printf("fp = %d\n", fp);
+
+	for (i=0; i<strlen(str); i++) {
+		d.offset = UART_WRITE_ADDR;
+		d.count = 1;
+		d.buf[0] = str[i];
+		ret = ioctl(fp, USRP_E_WRITE_CTL16, &d);
+		printf("Wrote %X, to %X, ret = %d\n", d.buf[0], d.offset, ret);
+	}
+
+	return 0;
+}
diff --git a/host/apps/omap_debug/usrp-e-write.c b/host/apps/omap_debug/usrp-e-write.c
new file mode 100644
index 000000000..903c0071f
--- /dev/null
+++ b/host/apps/omap_debug/usrp-e-write.c
@@ -0,0 +1,21 @@
+#include <stdio.h>
+#include <sys/types.h>
+#include <fcntl.h>
+
+int main(int rgc, char *argv[])
+{
+	int fp, i, cnt;
+	short buf[1024];
+
+	fp = open("/dev/usrp1_e0", O_WRONLY);
+	printf("fp = %d\n", fp);
+
+	for (i=0; i<1024; i++) {
+		buf[i] = i;
+	}
+
+//	do {
+		cnt = write(fp, buf, 2048);
+		printf("Bytes written - %d\n", cnt);
+//	} while (1);
+}
diff --git a/host/apps/omap_debug/usrp_e.h b/host/apps/omap_debug/usrp_e.h
new file mode 100644
index 000000000..aa8ef3d57
--- /dev/null
+++ b/host/apps/omap_debug/usrp_e.h
@@ -0,0 +1,72 @@
+/*
+ *  Copyright (C) 2010 Ettus Research, LLC
+ *
+ *  Written by Philip Balister <philip@opensdr.com>
+ *
+ *  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 2 of the License, or
+ *  (at your option) any later version.
+ */
+
+#ifndef __USRP_E_H
+#define __USRP_E_H
+
+#include <linux/types.h>
+#include <linux/ioctl.h>
+
+struct usrp_e_ctl16 {
+	__u32 offset;
+	__u32 count;
+	__u16 buf[20];
+};
+
+struct usrp_e_ctl32 {
+	__u32 offset;
+	__u32 count;
+	__u32 buf[10];
+};
+
+// SPI interface
+
+#define UE_SPI_TXONLY	0
+#define UE_SPI_TXRX	1
+
+// Defines for spi ctrl register
+#define UE_SPI_CTRL_ASS		(1<<13)
+#define UE_SPI_CTRL_IE		(1<<12)
+#define UE_SPI_CTRL_LSB		(1<<11)
+#define UE_SPI_CTRL_TXNEG	(1<<10)
+#define UE_SPI_CTRL_RXNEG	(1<<9)
+#define UE_SPI_CTRL_GO_BSY	(1<<8)
+#define UE_SPI_CTRL_CHAR_LEN_MASK	0x7f
+
+#define UE_SPI_PUSH_RISE	0
+#define UE_SPI_PUSH_FALL	UE_SPI_CTRL_TXNEG
+#define UE_SPI_LATCH_RISE	0
+#define UE_SPI_LATCH_FALL	UE_SPI_CTRL_RXNEG
+
+struct usrp_e_spi {
+	__u8 readback;
+	__u32 slave;
+	__u32 data;
+	__u32 length;
+	__u32 flags;
+};
+
+struct usrp_e_i2c {
+	__u8 addr;
+	__u32 len;
+	__u8 data[];
+};
+
+#define USRP_E_IOC_MAGIC	'u'
+#define USRP_E_WRITE_CTL16	_IOW(USRP_E_IOC_MAGIC, 0x20, struct usrp_e_ctl16)
+#define USRP_E_READ_CTL16	_IOWR(USRP_E_IOC_MAGIC, 0x21, struct usrp_e_ctl16)
+#define USRP_E_WRITE_CTL32	_IOW(USRP_E_IOC_MAGIC, 0x22, struct usrp_e_ctl32)
+#define USRP_E_READ_CTL32	_IOWR(USRP_E_IOC_MAGIC, 0x23, struct usrp_e_ctl32)
+#define USRP_E_SPI		_IOW(USRP_E_IOC_MAGIC, 0x24, struct usrp_e_spi)
+#define USRP_E_I2C_READ		_IOR(USRP_E_IOC_MAGIC, 0x25, struct usrp_e_i2c)
+#define USRP_E_I2C_WRITE	_IOW(USRP_E_IOC_MAGIC, 0x26, struct usrp_e_i2c)
+
+#endif
diff --git a/host/apps/omap_debug/write-eeprom.sh b/host/apps/omap_debug/write-eeprom.sh
new file mode 100755
index 000000000..301b06f07
--- /dev/null
+++ b/host/apps/omap_debug/write-eeprom.sh
@@ -0,0 +1,92 @@
+#!/bin/bash
+
+if [ $# -ne 3 ] && [ $# -ne 5 ];
+then
+	echo "Usage:"
+	echo ""
+	echo "writeprom.sh deviceid rev fab_rev [envvar envsetting]"
+	echo	
+	echo " deviceid   - expansion board device number from table:"
+	echo 
+	echo "   Summit     0x01"
+	echo "   Tobi       0x02"
+	echo "   Tobi Duo   0x03"
+	echo "   Palo35     0x04"
+	echo "   Palo43     0x05"
+	echo "   Chestnut43 0x06"
+	echo "   Pinto      0x07"
+	echo
+	echo " rev          - board revision (e.g. 0x00)"
+	echo " fab_rev      - revision marking from pcb (e.g. R2411)"
+	echo " envvar       - optional u-boot env variable name"
+	echo "                (e.g. dvimode)"
+	echo " envsetting   - optional u-boot env variable setting"
+	echo "                (e.g. 1024x768MR-16@60)"
+	exit 1
+fi
+
+fabrevision=$3
+if [ ${#fabrevision} -ge 8 ]; then
+	echo "Error: fab revision string must less than 8 characters"
+	exit 1
+fi
+
+envvar=$4
+if [ ${#envar} -ge 16 ]; then
+	echo "Error: environment variable name string must less than 16 characters"
+	exit 1
+fi
+
+envsetting=$5
+if [ ${#ensetting} -ge 64 ]; then
+	echo "Error: environment setting string must less than 64 characters"
+	exit 1
+fi
+
+bus=3
+device=0x51
+vendorid=0x03
+
+i2cset -y $bus $device 0x00 0x00
+i2cset -y $bus $device 0x01 $vendorid
+i2cset -y $bus $device 0x02 0x00
+i2cset -y $bus $device 0x03 $1
+i2cset -y $bus $device 0x04 $2
+i2cset -y $bus $device 0x05 00
+
+let i=6
+hexdumpargs="'${#fabrevision}/1 \"0x%02x \"'"
+command="echo -n \"$fabrevision\" | hexdump -e $hexdumpargs"
+hex=$(eval $command)
+for character in $hex; do
+	i2cset -y $bus $device $i $character
+	let i=$i+1
+done
+i2cset -y $bus $device $i 0x00
+
+if [ $# -eq 5 ]
+then
+	i2cset -y $bus $device 0x05 0x01
+
+	let i=14
+	hexdumpargs="'${#envvar}/1 \"0x%02x \"'"
+	command="echo -n \"$envvar\" | hexdump -e $hexdumpargs"
+	hex=$(eval $command)
+	for character in $hex; do
+		i2cset -y $bus $device $i $character
+		let i=$i+1
+	done
+ 	i2cset -y $bus $device $i 0x00
+
+	let i=30
+	hexdumpargs="'${#envsetting}/1 \"0x%02x \"'"
+	command="echo -n \"$envsetting\" | hexdump -e $hexdumpargs"
+	hex=$(eval $command)
+	for character in $hex; do
+		i2cset -y $bus $device $i $character
+		let i=$i+1
+	done	 
+	i2cset -y $bus $device $i 0x00
+fi
+
+