Why does the O-RAN Intel® FPGA IP give incorrect values when Block floating-point compression is turned on? - Why does the O-RAN Intel® FPGA IP give incorrect values when Block floating-point compression is turned on?
Description Due to a problem in the O-RAN Intel® FPGA IP version 1.6.0 and earlier, you may see the O-RAN Intel FPGA IP gives incorrect values when Block floating-point compression is turned on. When the original PRB value is almost saturated at maximum positive value, O-RAN intel FPGA IP may generate a negative value of compressed PRB. For example, the original PRB value “8180” is compressed to 9 bits using the exponent value `5` and the compressed PRB value is incorrectly generated as 256 (0x100). The compressed value is expected to be decompressed as 16-bits and the expected value is 8192 (0x2000). However, the decompressed outcome becomes 8192(0xE000). This problem impacts the IqWidth from `8` to `15`. The Fronthaul Compression Intel® FPGA IP has the same problem. Resolution This problem is fixed starting with the O-RAN Intel® FPGA IP and the Fronthaul Compression Intel FPGA IP webcore version 22.2.
Custom Fields values:
['novalue']
Troubleshooting
15011379692, 15010988485
False
['novalue']
['FPGA Dev Tools Quartus® Prime Software Pro']
22.2
22.1
['Agilex™ 7 FPGAs and SoCs', 'Arria® 10 FPGAs and SoCs', 'Stratix® 10 FPGAs and SoCs']
['novalue']
['novalue']
['novalue'] - 2023-05-26
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