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25 lines
462 B
Bash
Executable File
25 lines
462 B
Bash
Executable File
#!/bin/bash
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#
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# peek - retrieve the first 256 NOR bytes via JTAG, then compare them with
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# the reference standby bitstream
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#
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jtag -q <<EOF
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cable milkymist
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detect
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instruction CFG_OUT 000100 BYPASS
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instruction CFG_IN 000101 BYPASS
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pld load fjmem.bit
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initbus fjmem opcode=000010
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frequency 6000000
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detectflash 0
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endian big
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readmem 0 0x100 peek.bin
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pld reconfigure
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EOF
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diff -u \
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<(dd if=standby.fpg bs=256 count=1 | hexdump -C) \
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<(hexdump -C peek.bin)
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