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authorNick Foster <nick@ettus.com>2012-03-16 11:26:34 -0700
committerNick Foster <nick@ettus.com>2012-03-16 11:27:39 -0700
commit63991f7922a4e20888f001b802a8d8c88a8a16ee (patch)
tree0026d0cb7a615a66c6dc90826d58015efe0a22ed /host/lib
parentf91e247da23c09626cf215a7cede145b09376575 (diff)
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B100: enable_gpif(0) disables FIFO output clock on FX2. this prevents the "stuffing zeroes" problem and improves transport reliability.
Diffstat (limited to 'host/lib')
-rw-r--r--host/lib/usrp/b100/b100_impl.cpp4
1 files changed, 2 insertions, 2 deletions
diff --git a/host/lib/usrp/b100/b100_impl.cpp b/host/lib/usrp/b100/b100_impl.cpp
index 41e451481..991e6efd3 100644
--- a/host/lib/usrp/b100/b100_impl.cpp
+++ b/host/lib/usrp/b100/b100_impl.cpp
@@ -182,12 +182,11 @@ b100_impl::b100_impl(const device_addr_t &device_addr){
//-- setup clock after making fx2 and before loading fpga --//
_clock_ctrl = b100_clock_ctrl::make(_fx2_ctrl, device_addr.cast<double>("master_clock_rate", B100_DEFAULT_TICK_RATE));
- //load FPGA image, gpif is disabled while loading
+ //load FPGA image, slave xfers are disabled while loading
this->enable_gpif(false);
_fx2_ctrl->usrp_load_fpga(b100_fpga_image);
_fx2_ctrl->usrp_fpga_reset(false); //active low reset
_fx2_ctrl->usrp_fpga_reset(true);
- this->enable_gpif(true);
//create the control transport
device_addr_t ctrl_xport_args;
@@ -203,6 +202,7 @@ b100_impl::b100_impl(const device_addr_t &device_addr){
ctrl_xport_args
);
while (_ctrl_transport->get_recv_buff(0.0)){} //flush ctrl xport
+ this->enable_gpif(true);
////////////////////////////////////////////////////////////////////
// Initialize FPGA wishbone communication