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2.7. AFビットストリームの読み込みとホスト・アプリケーションの実行
Intel Quartus Prime v18.1を使用してHLSコンポーネントをコンパイルした場合、run.shが失敗する場合があります。 もう一度実行すると、動作するはずです。
- AFをFPGAにロードします。
# sudo fpgaconf hls_afu.gbs
- hello_worldディレクトリーに移動します。
- ホスト・アプリケーションをビルドして実行します（ USE_ASE = 1を使用しないでください）。
$ make $ sudo ./hls_afu_host
予想される出力は次のとおりです。
Using Avalon Slave at offset 0x40
No vector size specified. Default to size 64 floats! run ./hls_afu_host <vectorsize> to specify a vector size at runtime.
Using test vector of size 64.
Running Test
AFU DFH REG = 1000010000000000
AFU ID LO = 944028430b016f3d
AFU ID HI = 5fa7fd4b867c484c
AFU NEXT = 00000000
AFU RESERVED = 00000000
end of output memory before executing kernel:
[62] - -6259853398707798016.000000 (0xdeadbeef)
[63] - -6259853398707798016.000000 (0xdeadbeef)
[64] - -6259853398707798016.000000 (0xdeadbeef)
[65] - 0.000000 (0x0)
Interrupt enabled = 00000000
Interrupt enabled = 00000001
AFU Latency: 0.01600 milliseconds
Poll success. Return = 1
check output memory:
output memory OK!
sum: Expected 715.000000, calculated 715.000000.
The FPGA writes a full 512-bit word (64 bytes) to host memory, so if the size of your test vector
(in bytes) is not a multiple of 64, the FPGA will overwrite some space at the end of output memory.
fpgaPrepareBuffer() allocates your host memory in a buffer that is a multiple of 64 bytes, so the
FPGA behavior will not affect your application. You should expect to see a single 0xdeadbeef at the
end of the output memory if and only if the size of your test vector (determined by vector_size, and
the datatype) is a multiple of 64 bytes (that is, if vector_size is a multiple of 16).
end of output memory after executing kernel:
[62] - 22.333334 (0x41b2aaab)
[63] - 22.666666 (0x41b55555)
[64] - -6259853398707798016.000000 (0xdeadbeef)
[65] - 0.000000 (0x0)
Vector size is 64 (256 bytes), so expect memory output at [64] = 0xdeadbeef
Finished Running Test.
Test PASSED