diff options
| -rw-r--r-- | host/apps/omap_debug/Makefile | 5 | ||||
| -rwxr-xr-x | host/apps/omap_debug/set_debug_pins.py | 13 | ||||
| -rw-r--r-- | host/apps/omap_debug/usrp-e-gpio.c | 83 |
3 files changed, 94 insertions, 7 deletions
diff --git a/host/apps/omap_debug/Makefile b/host/apps/omap_debug/Makefile index cd95d36fc..31229d45c 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 usrp-e-uart-rx fpga-downloader +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 fpga-downloader usrp-e-gpio usrp-e-spi : usrp-e-spi.c @@ -21,6 +21,8 @@ usrp-e-button : usrp-e-button.c fpga-downloader : fpga-downloader.cc +usrp-e-gpio : usrp-e-gpio.c + clean : rm -f usrp-e-spi rm -f usrp-e-i2c @@ -31,3 +33,4 @@ clean : rm -f usrp-e-ctl rm -f usrp-e-button rm -f fpga-downloader + rm -f usrp-e-gpio diff --git a/host/apps/omap_debug/set_debug_pins.py b/host/apps/omap_debug/set_debug_pins.py index fdd085c9e..0f9ecd7b9 100755 --- a/host/apps/omap_debug/set_debug_pins.py +++ b/host/apps/omap_debug/set_debug_pins.py @@ -3,12 +3,12 @@ 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 +misc_base = 0 +uart_base = 1 +spi_base = 2 +i2c_base = 3 +gpio_base = 4 * 128 +settings_base = 5 # GPIO offset gpio_pins = 0 @@ -32,3 +32,4 @@ 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/usrp-e-gpio.c b/host/apps/omap_debug/usrp-e-gpio.c new file mode 100644 index 000000000..adef877d3 --- /dev/null +++ b/host/apps/omap_debug/usrp-e-gpio.c @@ -0,0 +1,83 @@ +#include <stdio.h> +#include <stdlib.h> +#include <unistd.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_gpio <string> + +static int fp; + +static int read_reg(__u16 reg) +{ + int ret; + struct usrp_e_ctl16 d; + + d.offset = reg; + d.count = 1; + ret = ioctl(fp, USRP_E_READ_CTL16, &d); + return d.buf[0]; +} + +static void write_reg(__u16 reg, __u16 val) +{ + int ret; + struct usrp_e_ctl16 d; + + d.offset = reg; + d.count = 1; + d.buf[0] = val; + ret = ioctl(fp, USRP_E_WRITE_CTL16, &d); +} + +int main(int argc, char *argv[]) +{ + int i, test, data_in; + + test = 0; + if (argc > 1) + test = 1; + + fp = open("/dev/usrp_e0", O_RDWR); + printf("fp = %d\n", fp); + + write_reg(UE_REG_GPIO_TX_DDR, 0x0); + write_reg(UE_REG_GPIO_RX_DDR, 0xFFFF); + + for (i=0; i < 16; i++) { + write_reg(UE_REG_GPIO_RX_IO, 1 << i); + sleep(1); + if (test) { + data_in = read_reg(UE_REG_GPIO_TX_IO); + if (data_in != (1 << i)) + printf("Read failed, wrote: %X read: %X\n", \ + 1 << i, data_in); + } + } + + write_reg(UE_REG_GPIO_RX_DDR, 0x0); + write_reg(UE_REG_GPIO_TX_DDR, 0xFFFF); + + sleep(1); + + for (i=0; i < 16; i++) { + write_reg(UE_REG_GPIO_TX_IO, 1 << i); + sleep(1); + if (test) { + data_in = read_reg(UE_REG_GPIO_RX_IO); + if (data_in != (1 << i)) + printf("Read failed, wrote: %X read: %X\n", \ + 1 << i, data_in); + } + } + + write_reg(UE_REG_GPIO_RX_DDR, 0x0); + write_reg(UE_REG_GPIO_TX_DDR, 0x0); + + return 0; +} |