Hello. Thank you so much for your attention. I'm writing my own block using python, trying to get the output of the *OFDM Channel Estimation* block to be the input of my own block.
I'm getting the following error: *RuntimeError: itemsize mismatch: ofdm_chanest_vcvc0:0 using 512, cir_sink_c0:0 using 8* I'm using: *def __init__(self, fft_len): gr.sync_block.__init__(self, name="cir_sink_c", in_sig=[np.complex64], out_sig=None) self.fft_len = fft_len* and in the YML file: *inputs:- label: in domain: stream dtype: complex vlen: ${fft_len}* I've tried to use *complex_vetor *in the dtype, but I kept getting this error message: * File "/root/prefix/lib/python3/dist-packages/gnuradio/grc/core/ports/port.py", line 91, in item_size return Constants.TYPE_TO_SIZEOF[self.dtype] * self.vlenKeyError: 'complex_vector'* I've also tried to use *np.complex128 *in the in_sig, but that doesn't work either. Does anyone a solution for this? Thank you so much for your help! Yours sincerely, Vinicius.