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-rw-r--r--host/lib/usrp/usrp_e/io_impl.cpp11
1 files changed, 7 insertions, 4 deletions
diff --git a/host/lib/usrp/usrp_e/io_impl.cpp b/host/lib/usrp/usrp_e/io_impl.cpp
index 9ebc5b560..7c451a75f 100644
--- a/host/lib/usrp/usrp_e/io_impl.cpp
+++ b/host/lib/usrp/usrp_e/io_impl.cpp
@@ -73,11 +73,14 @@ private:
std::cout << boost::format(
"calling read on fd %d, buff size is %d"
) % _fd % boost::asio::buffer_size(buff) << std::endl;
- return read(
+ ssize_t ret = read(
_fd,
boost::asio::buffer_cast<void *>(buff),
boost::asio::buffer_size(buff)
);
+ if (ret < ssize_t(sizeof(usrp_transfer_frame))) return 0;
+ std::cout << "len " << int(boost::asio::buffer_cast<usrp_transfer_frame *>(buff)->len) << std::endl;
+ return boost::asio::buffer_cast<usrp_transfer_frame *>(buff)->len;
}
};
@@ -93,7 +96,7 @@ struct usrp_e_impl::io_impl{
void usrp_e_impl::io_init(void){
//setup rx data path
- _iface->poke32(UE_REG_CTRL_RX_NSAMPS_PER_PKT, 1000); //FIXME magic number
+ _iface->poke32(UE_REG_CTRL_RX_NSAMPS_PER_PKT, 300); //FIXME magic number
_iface->poke32(UE_REG_CTRL_RX_NCHANNELS, 1);
_iface->poke32(UE_REG_CTRL_RX_CLEAR_OVERRUN, 1); //reset
_iface->poke32(UE_REG_CTRL_RX_VRT_HEADER, 0
@@ -142,7 +145,7 @@ size_t usrp_e_impl::send(
otw_type_t send_otw_type;
send_otw_type.width = 16;
send_otw_type.shift = 0;
- send_otw_type.byteorder = otw_type_t::BO_NATIVE;
+ send_otw_type.byteorder = otw_type_t::BO_BIG_ENDIAN;
return vrt_packet_handler::send(
_io_impl->send_state,
@@ -170,7 +173,7 @@ size_t usrp_e_impl::recv(
otw_type_t recv_otw_type;
recv_otw_type.width = 16;
recv_otw_type.shift = 0;
- recv_otw_type.byteorder = otw_type_t::BO_NATIVE;
+ recv_otw_type.byteorder = otw_type_t::BO_BIG_ENDIAN;
return vrt_packet_handler::recv(
_io_impl->recv_state,