I tried to set RX_IO8-RX_IO15 pins to output on Flex900 board but
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
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?