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 <kavin...@atindriya.co.in> 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_usrp_get_time_now(usrp, mboard, &full_secs,
&frac_secs);
uhd_usrp_set_command_time(usrp, full_secs , frac_secs +
1e-6,
mboard);
This won't work, you need to set this in the future from "time now".
error = uhd_usrp_set_gpio_attr(usrp, bank, "OUT", 0x01,
mask1,
mboard);
uhd_usrp_clear_command_time(usrp, 0);
uhd_usrp_get_time_now(usrp, mboard, &full_secs,
&frac_secs);
uhd_usrp_set_command_time(usrp, full_secs , frac_secs +
1e-3,
mboard);
Same here.
error = uhd_usrp_set_gpio_attr(usrp, bank, "OUT", 0x00,
mask1,
mboard);
uhd_usrp_clear_command_time(usrp, 0);
}
Get the time "now" outside of the loop, and use that as a base
reference. When you've fixed that, I recommend you connect it to an
oscilloscope for verification.
--M
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