Hello,\
\
After building the MPM daemon, I am trying (currently unsuccessfully) to
execute the MPM daemon & RPC server.\
\
The following MPM build sequence creates the file
**‘libusrp-periphs.so.4.8.0’** in the directory **‘/usr/lib’**. In the same
directory **‘/usr/lib’**, the symlink **‘libus
Hi,
What is the minimum time to toggle the GPIO pin?
I want to make the GPIO pin high for 1microsecond and low for
1milliseconds. How i achieve this through code?
Thanks.
On 2025-02-24 01:57, Martin Braun wrote:
You don't specify a delay, you send one timed command to make the pin
go H
Hi,
I have written a c code for GPIO toggling in USRP B205mini-i board.
The pin should be high for 1microseconds and low for 1milliseconds. I
have given the c code to verify whether it is correct or not?
while(1)
{
uhd_usrp_get_time_now(usrp, mboard, &full_secs, &frac_secs);
OK, sounds like you're more than halfway there. Also, you can ignore
UHD_REGISTER_EXTENSION() for now, that's for a different purpose.
The way I've been testing "simple" applications is through
probe_gain_block.cpp. The way I've been testing "complex" applications is
through the GNU Radio integrat
On Mon, Feb 24, 2025 at 10:42 AM wrote:
> Hi,
>I have written a c code for GPIO toggling in USRP B205mini-i board.
> The pin should be high for 1microseconds and low for 1milliseconds. I
> have given the c code to verify whether it is correct or not?
>
> while(1)
> {
> uhd_
Hi,
while(1)
{
uhd_usrp_get_time_now(usrp, mboard, &full_secs, &frac_secs);
uhd_usrp_set_command_time(usrp, full_secs , frac_secs + 1e-6,
mboard);
error = uhd_usrp_set_gpio_attr(usrp, bank, "OUT", 0x01, mask1,
mboard);
uhd_usrp_clear_command_time(usrp,
Assuming t_high is a uhd::time_spec_t that marks the start time of your
HIGH state, simply do
auto t_low = t_high + 1e-6;
and then use t_low for your second timed command:
usrp->set_command_time(t_high);
usrp->set_gpio_attr(/* set your pin high */);
usrp->set_command_time(t_low);
usrp->set_gpio_
Hi,
Can you give me the corrected c code for my application?
Thanks.
On 2025-02-24 08:17, Martin Braun wrote:
On Mon, Feb 24, 2025 at 10:42 AM wrote:
Hi,
I have written a c code for GPIO toggling in USRP B205mini-i
board.
The pin should be high for 1microseconds and low for 1milliseconds
I found a clue today.
The constructor of my control block never gets called in the test where I use
the rfnoc-vastech shared library in a totally separate project.
(In an application directly compiled in my rfnoc OOT repo it definitely does
get called.)
It seems like the “UHD_RFNOC_BL
