Add test program to send characters to the wishbone uart.

2 files changed, 42 insertions, 1 deletions

diff --git a/host/apps/omap_debug/Makefile b/host/apps/omap_debug/Makefile
index 34446ccc3..13b834e28 100644
--- a/host/apps/omap_debug/Makefile
+++ b/host/apps/omap_debug/Makefile
@@ -1,6 +1,6 @@
 CFLAGS=-Wall
 
-all : usrp-e-spi usrp-e-i2c usrp-e-rw
+all : usrp-e-spi usrp-e-i2c usrp-e-rw usrp-e-uart
 
 usrp-e-spi : usrp-e-spi.c
 
@@ -8,8 +8,12 @@ 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/usrp-e-uart.c b/host/apps/omap_debug/usrp-e-uart.c
new file mode 100644
index 000000000..92f89f45c
--- /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 ((1<<6) + 16) 
+
+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;
+}