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20 lines
849 B
Markdown
20 lines
849 B
Markdown
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# Hardware Verify Script
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This is a sketch for low-level debugging of the TommyPROM hardware. It allows the EEPROM data, address,
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and control pins to be individually set so that they can be probed to catch wiring errors. The usage is
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described in the [Troubleshooting documentation page](https://tomnisbet.github.io/TommyPROM/docs/troubleshooting).
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This sketch should only be used for debugging if the main TommyPROM sketch does not seem to be working. To
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get started with a new TommyPROM build, load the TommyPROM sketch into the hardware and try the Unlock,
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Display and Zap commands to test reading and writing. For example:
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```
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u
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d0 ff
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z0
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d0 ff
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```
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The above commands will Unlock the Software Data Protection, Display the first 256 bytes, burn a
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sequence of test data into the first 32 bytes, and then Display the first 256 bytes again.
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