discuss-gnuradio
[
Top
][
All Lists
]
Advanced
[
Date Prev
][
Date Next
][
Thread Prev
][
Thread Next
][
Date Index
][
Thread Index
]
[Discuss-gnuradio] Problem with driving IO pin with Flex900 on USRP
From
:
sergey kostanbaev
Subject
:
[Discuss-gnuradio] Problem with driving IO pin with Flex900 on USRP
Date
:
Sat, 7 Nov 2009 17:12:45 +0300
Hi All!
I tried to set RX_IO8-RX_IO15 pins to output on Flex900 board but without success
I used this code
m_u_rx->_write_oe(1, 0xff00, 0xff00);
m_u_rx->write_io(1, 0xff00, 0xff00);
where m_u_rx is an usrp_standard_rx_sptr object.
Applying an oscilloscope probe (or voltmeter) didn't point to a value change.
But configuring its for input is ok, using this
m_u_rx->_write_oe(1, 0x0000, 0xff00);
int b = m_u_rx->read_io(1);
and placing pullup / pulldown resistor on pins lead to value change.
What's wrong with the output part?
reply via email to
[Prev in Thread]
Current Thread
[Next in Thread]
[Discuss-gnuradio] Problem with driving IO pin with Flex900 on USRP
,
sergey kostanbaev
<=
Prev by Date:
Re: [Discuss-gnuradio] Peak in FFT.
Next by Date:
[Discuss-gnuradio] run GNU Radio (spectrum analyzer) and OpenBTS on one computer with 2 USRPs at the same time
Previous by thread:
[Discuss-gnuradio] Regarding Master and Slave
Next by thread:
[Discuss-gnuradio] run GNU Radio (spectrum analyzer) and OpenBTS on one computer with 2 USRPs at the same time
Index(es):
Date
Thread