diff options
| -rw-r--r-- | host/apps/omap_debug/Makefile | 5 | ||||
| -rw-r--r-- | host/apps/omap_debug/usrp-e-uart-rx.c | 53 |
2 files changed, 57 insertions, 1 deletions
diff --git a/host/apps/omap_debug/Makefile b/host/apps/omap_debug/Makefile index f292379f4..4779969de 100644 --- a/host/apps/omap_debug/Makefile +++ b/host/apps/omap_debug/Makefile @@ -1,6 +1,6 @@ CFLAGS=-Wall -I../../lib/usrp/usrp_e/ -all : usrp-e-spi usrp-e-i2c usrp-e-rw usrp-e-uart usrp-e-led usrp-e-ctl usrp-e-button +all : usrp-e-spi usrp-e-i2c usrp-e-rw usrp-e-uart usrp-e-led usrp-e-ctl usrp-e-button usrp-e-uart-rx usrp-e-spi : usrp-e-spi.c @@ -11,6 +11,8 @@ usrp-e-rw : usrp-e-rw.c usrp-e-uart : usrp-e-uart.c +usrp-e-uart-rx : usrp-e-uart-rx.c + usrp-e-led : usrp-e-led.c usrp-e-ctl : usrp-e-ctl.c @@ -22,6 +24,7 @@ clean : rm -f usrp-e-i2c rm -f usrp-e-rw rm -f usrp-e-uart + rm -f usrp-e-uart-rx rm -f usrp-e-led rm -f usrp-e-ctl rm -f usrp-e-button diff --git a/host/apps/omap_debug/usrp-e-uart-rx.c b/host/apps/omap_debug/usrp-e-uart-rx.c new file mode 100644 index 000000000..24b417980 --- /dev/null +++ b/host/apps/omap_debug/usrp-e-uart-rx.c @@ -0,0 +1,53 @@ +#include <stdio.h> +#include <stdlib.h> +#include <sys/types.h> +#include <fcntl.h> +#include <string.h> +#include <sys/ioctl.h> + +#include "usrp_e.h" +#include "usrp_e_regs.hpp" + +// Usage: usrp_e_uart <string> + + +int main(int argc, char *argv[]) +{ + int fp, ret; + struct usrp_e_ctl16 d; + __u16 clkdiv; + + if (argc == 0) { + printf("Usage: usrp-e-uart-rx <opt clkdiv>\n"); + printf("clkdiv = 278 is 230.4k \n"); + printf("clkdiv = 556 is 115.2k \n"); + exit(-1); + } + + fp = open("/dev/usrp_e0", O_RDWR); + printf("fp = %d\n", fp); + + if (argc == 2) { + clkdiv = atoi(argv[1]); + d.offset = UE_REG_UART_CLKDIV; + d.count = 1; + d.buf[0] = clkdiv; + ret = ioctl(fp, USRP_E_WRITE_CTL16, &d); + } + + while(1) { + d.offset = UE_REG_UART_RXLEVEL; + d.count = 1; + ret = ioctl(fp, USRP_E_READ_CTL16, &d); + + if (d.buf[0] > 0) { + d.offset = UE_REG_UART_RXCHAR; + d.count = 1; + ret = ioctl(fp, USRP_E_READ_CTL16, &d); + printf("%c", d.buf[0]); + fflush(stdout); + } + } + + return 0; +} |