Hi Manuel, On Jul 22, 2010, at 1:48 PM, Manuel Fuhr wrote:
>> Test case 03: Setting the maximum USRP2 sample rate (100M) doesnt work, it >> switches to 25Msps. > That's because it's impossible to transfer 32-bit samples with 100Msps > over Gigabit (even without any overhead). Why does the uhd benchmark_rx sample fail ? I haven't seen the UHD driver working till now, and documentation is very poor for a first time user. I've spent USD$2000 (USRP2 + WBX) and still haven't been able to figure out how to get clear FM reception or the UHD driver up and running, and its been over a week now. If someone else has this setup running, please do let me know. At the very least, these units should have some working samples, just to get the hw configuration/setup issues out of the way, with a simple demo. $ ./benchmark_rx_rate Creating the usrp device with: ... Current recv sock buff size: 50000000 bytes Current send sock buff size: 50000000 bytes Using: WBX TX (0x0053) Using: WBX RX (0x0052) RX samples per packet: 362 TX samples per packet: 363 Recv pirate num frames: 33967 Using Device: Simple USRP: Device: usrp2 device Mboard: usrp2 mboard0 - rev 4:0 RX DSP: usrp2 ddc0 RX Dboard: usrp2 dboard (rx unit) RX Subdev: WBX TX (0x0053) TX DSP: usrp2 duc0 TX Dboard: usrp2 dboard (tx unit) TX Subdev: WBX RX (0x0052) Testing receive rate 0.500000 Msps (10.000000 second run) Unexpected error on recv, exit test... Testing receive rate 1.000000 Msps (10.000000 second run) Unexpected error on recv, exit test... Testing receive rate 2.000000 Msps (10.000000 second run) Unexpected error on recv, exit test... Testing receive rate 4.000000 Msps (10.000000 second run) Unexpected error on recv, exit test... Testing receive rate 8.333333 Msps (10.000000 second run) Unexpected error on recv, exit test... Testing receive rate 16.666667 Msps (10.000000 second run) Unexpected error on recv, exit test... Testing receive rate 25.000000 Msps (10.000000 second run) Unexpected error on recv, exit test... Done!
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