Thank you for the quick reply, so if I write the block in C++ or C, it may work at a higher rate?
Regards, Wei Marcus D. Leech <patchvonbr...@gmail.com> 于2021年7月9日周五 下午5:29写道： > On 07/09/2021 12:05 PM, Huang Wei wrote: > > Sorry, I mean it's the underrun problem > > Huang Wei <weizar...@gmail.com> 于2021年7月9日周五 下午5:02写道： > >> Hello everyone, >> >> I am using the embedded python block in GRC to realize some simple >> functions. All works fine in the GRC local set-up. However, if I connect a >> USRP sink to the flowgraph which includes that python block, and set >> the sample rate more than 20 MHz (I need 100 MHz in my case), it will keep >> output "UUUUUUUU....", and then GRC will stop working. >> I tried the defaulted python block, where the output is simply multiplied >> by a factor k, the same overrun problem happened. And GRC works fine with >> the USRP sink if the python block is not used. >> >> Does anyone know what could be the problem? >> Thank you! >> >> Regards, >> Wei >> > Because there's absolutely no way a Python-based work function is ever > going to keep up at multi-MSPS rates. > > >
