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428 Views
Registered: ‎03-09-2019

error in implementing OFDM TRANSMITTER RECEIVER BLOCK

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I am getting an error in parallel to serial convertor block in IFFT subsystem in OFDM tranceiver implementation.

ERROR: The S-function 'sysgen' in 'tx_rx/IFFT /Parallel to Serial1' has specified the option SS_OPTION_PORT_SAMPLE_TIMES_ASSIGNED and specified inherited for sample time number 0. Inheriting a sample time is not supported when specifying SS_OPTION_PORT_SAMPLE_TIMES_ASSIGNED
Component: System Generator | Category: Design error

I have attached the .slx file for your reference. Kindly help me with that error.

 

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Xilinx Employee
Xilinx Employee
365 Views
Registered: ‎09-18-2018

Re: error in implementing OFDM TRANSMITTER RECEIVER BLOCK

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Hi ,I have checked the desing attached. Please bring out the Gatewayout block in the IFFT su-block into the main design. Looks like this is causing a feedback loop with in the the Sysgen block. Can you please check your design for serial to parallel converters and parallel to serial converters. Appears that they have been used to change the data type of the input to FFT and output of FFT. Please use "Convert" blocks to change the datatypes

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Xilinx Employee
Xilinx Employee
366 Views
Registered: ‎09-18-2018

Re: error in implementing OFDM TRANSMITTER RECEIVER BLOCK

Jump to solution

Hi ,I have checked the desing attached. Please bring out the Gatewayout block in the IFFT su-block into the main design. Looks like this is causing a feedback loop with in the the Sysgen block. Can you please check your design for serial to parallel converters and parallel to serial converters. Appears that they have been used to change the data type of the input to FFT and output of FFT. Please use "Convert" blocks to change the datatypes

View solution in original post

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316 Views
Registered: ‎03-09-2019

Re: error in implementing OFDM TRANSMITTER RECEIVER BLOCK

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Thank you for your reply... I will try your solution 

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