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| docs:user-guide:hardware:turnoff.jtag.to.gpio [2018/02/17 21:36] – ↷ Page moved from doc:recipes:turnoff.jtag.to.gpio to docs:user-guide:hardware:turnoff.jtag.to.gpio bobafetthotmail | docs:guide-user:hardware:turnoff.jtag.to.gpio [2019/08/26 16:33] (current) – tag optimization vgaetera | ||
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| ====== How to turnoff JTAG to free GPIO (only on ath79 processors) ====== | ====== How to turnoff JTAG to free GPIO (only on ath79 processors) ====== | ||
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| You may need to disable the JTAG, to be able to use the TDI, TDO, TMS and TCK as GPIO-pin. The fact that the some special routers with EJTAG on PCB - EJTAG default is locked by hardware. | You may need to disable the JTAG, to be able to use the TDI, TDO, TMS and TCK as GPIO-pin. The fact that the some special routers with EJTAG on PCB - EJTAG default is locked by hardware. | ||
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| So, it is possible to turn off the built-in JTAG by simple script, without the NO need to patch/ | So, it is possible to turn off the built-in JTAG by simple script, without the NO need to patch/ | ||
| ===== Method (NO need re-build the Kernel): ===== | ===== Method (NO need re-build the Kernel): ===== | ||
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| Install io: | Install io: | ||
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| </ | </ | ||
| - | ===== Tags ===== | ||
| - | [[meta: | ||
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| - | {{tag> | ||