21 lines
675 B
Markdown
21 lines
675 B
Markdown
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# SWD
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### Summary
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* SWD Pins
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### SWD pins
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* SWCLK: Clock into the core
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* SWDIO: Data in / out
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JTAG and SWD are similar and can be interfaced with each other:
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| JTAG Mode | SWD Mode | Signal |
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| --------- | -------- | --------------------------------------------- |
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| TCK | SWCLK | Clock into the core |
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| TDI | - | JTAG test data input |
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| TDO | SWV | JTAG Test data output / SWV trace data output |
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| TMS | SWDIO | JTAG test mode select / SWD data in and out |
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| GND | GND | - |
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