NEW: HP 15C Collectors Edition
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11-10-2023, 08:49 AM
Post: #666
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RE: NEW: HP 15C Collectors Edition
(11-09-2023 09:09 PM)Harald Wrote:(11-09-2023 07:57 PM)ijabbott Wrote: Is the new design just a passive USB cable with some buttons and the special connector? I'm wondering if it could be used to flash a HP-30b by wiring the D+ and D- pins on the standard USB connector (Type A?) to TTL 3.3V serial TX and RX signals. I think this could be possible without disassembling the new cable: make a pigtail with one end connected (or soldered) to the USB-Serial adapter serial lines, the other end with a Type-A USB receptacle, then connect it to the new cable. If I'm not wrong the reset and erase lines are connected to the same pins in the pogo connector. The USB-Serial adapter has to have its own USB cable to connect to the computer. Just a bit weird to have a segment of the cable with USB connectors carrying serial signals (I would label it clearly), but it should work. |
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