| This fuzzer creates the tilegrid.json bitstream database |
| This database contains segment definitions including base frame address and frame offsets |
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| Example workflow for CLB: |
| generate.tcl LOCs one LUT per segment column towards generating frame base addresses |
| A reference bitstream is generated and then a series of bitstreams are generated each with one LUT bit toggled |
| These are compared to find a toggled bit in the CLB segment column |
| The resulting address is truncated to get the base frame address |
| Finally, generate.py calculates the segment word offsets based on known segment column structure |
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| Environment variables |
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| XRAY_ROI |
| This environment variable must be set with a valid ROI |
| See database for example values |
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| XRAY_ROI_FRAMES |
| This can be set to a specific value to speed up processing and reduce disk space |
| If you don't know where your ROI is, just set to to include all values (0x00000000:0xfffffff) |
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| XRAY_ROI_GRID_* |
| Optionally these as a small performance optimization: |
| -XRAY_ROI_GRID_X1 |
| -XRAY_ROI_GRID_X2 |
| -XRAY_ROI_GRID_Y1 |
| -XRAY_ROI_GRID_Y2 |
| Which should, if unused, be set to -1, with this caveat: |
| WARNING: CLB test generates this based on CLBs but implicitly includes INT |
| Therefore, if you don't set an explicit XRAY_ROI_GRID_* it may fail |
| if you don't have a CLB*_L at left and a CLB*_R at right |
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