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Specify KiCAD ver., because this is important
Clarissa Walker authored on 2023/06/09 03:16:30
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This project was originally for my own private personal use, but I am deciding to make this a repository anyway. |
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-This is also my first time using vias on a PCB layout! |
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+This is also my first time using vias on a PCB layout! Oh, this was made with KiCAD 7.0, so any earlier release will not work. |
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The circuit was tested with a 74HC244 IC and TJTAG 3.0.1 and 3.0.2.1 on a few machines with success barring issues with using one 74HC244; replacing it with another 74HC244 from the same set fixed the recognition issue. This is why a 74HCT244 is recommended with this circuit. |
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Browse code
Update README.md
Previous commit also fixes TJTAG version typo. Current commit adds a bottom view photo and adds some detail regarding the jumpers on the prototype circuit.
Clarissa Walker authored on 2023/06/08 23:28:54
• GitHub committed on 2023/06/08 23:28:54
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The circuit was tested with a 74HC244 IC and TJTAG 3.0.1 and 3.0.2.1 on a few machines with success barring issues with using one 74HC244; replacing it with another 74HC244 from the same set fixed the recognition issue. This is why a 74HCT244 is recommended with this circuit. |
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-The circuit on a perfboard - prototype unit before the PCB design |
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+This same circuit on a perfboard - prototype unit before the final PCB design... photos aren't as clear; my long retired LG G7 ThinQ was better for this. |
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+Also, the jumpers for switching 3V3/5V0 exist because I do not have a DPDT switch on hand. |
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+Top view |
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+Bottom view |
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Browse code
Update README.md
Add top view of prototype circuit design. Remind self to take a photo of the bottom view later.
Clarissa Walker authored on 2023/06/08 21:32:40
• GitHub committed on 2023/06/08 21:32:40
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This is also my first time using vias on a PCB layout! |
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-The circuit was tested with a 74HC244 IC and TJTAG 3.0.1. and 3.0.2.1 on a few machines with success barring issues with using one 74HC244; replacing it with another 74HC244 from the same set fixed the recognition issue. This is why a 74HCT244 is recommended with this circuit. |
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+The circuit was tested with a 74HC244 IC and TJTAG 3.0.1 and 3.0.2.1 on a few machines with success barring issues with using one 74HC244; replacing it with another 74HC244 from the same set fixed the recognition issue. This is why a 74HCT244 is recommended with this circuit. |
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+The circuit on a perfboard - prototype unit before the PCB design |
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Browse code
Initial commit
Clarissa Walker authored on 2023/06/08 01:19:16
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+This project was originally for my own private personal use, but I am deciding to make this a repository anyway. |
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+ |
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+This is also my first time using vias on a PCB layout! |
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+ |
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+The circuit was tested with a 74HC244 IC and TJTAG 3.0.1. and 3.0.2.1 on a few machines with success barring issues with using one 74HC244; replacing it with another 74HC244 from the same set fixed the recognition issue. This is why a 74HCT244 is recommended with this circuit. |
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