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,
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,
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
You don't specify a delay, you send one timed command to make the pin go
HIGH, and another timed command to make it go LOW. And the two
command-times should be "your delay" apart.
This may help:
https://www.youtube.com/watch?v=ppD06ZETnek&t=75s&pp=ygUPZ3Jjb24gdXNycCBncGlv
--M
On Sat, Feb 22, 202
Hi,
How to give the delay in uhd_usrp_set_command_time(uhd_usrp_handle
h,int64_t full_secs,double frac_secs,size_t mboard) function?
On 2025-02-22 00:10, Marcus D. Leech wrote:
On 21/02/2025 23:56, kavin...@atindriya.co.in wrote:
Hi,
Can I use usleep(1) or any other technique is t
On 21/02/2025 23:56, kavin...@atindriya.co.in wrote:
Hi,
Can I use usleep(1) or any other technique is there for GPIO .
You might be able to use timed commands:
https://files.ettus.com/manual/page_timedcmds.html#timedcmds_gen_cmds
But since usleep() cannot guarantee any kind of maximum peri
Hi,
Can I use usleep(1) or any other technique is there for GPIO .
On 2025-02-21 23:37, Marcus D. Leech wrote:
On 21/02/2025 23:22, kavin...@atindriya.co.in wrote:
Hi,
Thanks for answering.
Can you explain me clearly?
Thanks.
I'd suggest, at a minimum, looking at the MAN page for usleep(
On 21/02/2025 23:22, kavin...@atindriya.co.in wrote:
Hi,
Thanks for answering.
Can you explain me clearly?
Thanks.
I'd suggest, at a minimum, looking at the MAN page for usleep().
On 2025-02-21 23:11, Marcus D. Leech wrote:
On 21/02/2025 23:05, kavin...@atindriya.co.in wrote:
Hi,
I
Hi,
Thanks for answering.
Can you explain me clearly?
Thanks.
On 2025-02-21 23:11, Marcus D. Leech wrote:
On 21/02/2025 23:05, kavin...@atindriya.co.in wrote:
Hi,
In USRP B205mini-i I am able to access the GPIO Pin. I have to
create a Pulse in the GPIO pin. I want to make high the gpio
On 21/02/2025 23:05, kavin...@atindriya.co.in wrote:
Hi,
In USRP B205mini-i I am able to access the GPIO Pin. I have to
create a Pulse in the GPIO pin. I want to make high the gpio pin for
1microsecond and low for 999microseconds. How to achieve this timings
through coding. Can you give me
The mask affects the bits that you actually write to the attribute. In this
case:
uhd_usrp_set_gpio_attr(usrp, bank, "DDR", 1, 0x02, mboard);
...you're setting the DDR register to 0x01 and the mask to 0x02. 0x01 &
0x02 == 0, so you're not setting anything.
This works:
uhd_usrp_set_gpio_attr(usr
11 matches
Mail list logo
