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ModelSharedMem

v4	v5
5	5	= Programmable Modulation Schemes =
6	6	The WARP MIMO OFDM core implements a flexible modulation scheme. The core allows any combination of modulation schemes across subcarriers and antennas to be used in a given packet. The schemes are programmed by writing a modulation selection for each subcarrier to a shared memory block in the core. Unique schemes can be programmed for the full-rate symbols at antennas A and B and for the base-rate symbols; see [wiki:OFDM/MIMO/Docs/PHYDetails/FrameFormat OFDM Frame Format] for more details about base- and full-rate symbols.
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	8	The current version of the OFDM core requires the modulation schemes to be pre-programmed at both the transmitterand receiver. A future revision will include the ability to communicate this information with the header of each packet.
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8	10	The transmitter and receiver sections of the core have separate modulation selection memory blocks. The organization of these two memory blocks are identical. The C-code below illustrates the memory organization and how user-code can write to these memory blocks. The macros ''ofdm_TxRx_mimo_SMWO_TxModulation_OFFSET'' and ''ofdm_TxRx_mimo_SMWO_TxModulation_OFFSET'' represent the address offsets (relative to the OFDM core's base address) for the two memory blocks. These macros are defined in the OFDM core's driver ([source:/PlatformSupport/CustomPeripherals/drivers/ofdm_TxRx_mimo_opbw_v1_07_a/src/ofdm_TxRx_mimo.h@449#L141 ofdm_TxRx_mimo.h]).