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PSoC 3
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Bob
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Hi,
You should take a look at the programming specifications of PSoC3 for the hardware connections.
Link:
http://www.cypress.com/?rID=44327
You actually don't need any external resistors on the lines. Also take care that when your Vddio1 is 5V, your power of operation of miniprog should be 5V.
Take a look at the spec section 1.2.2.
Regards,
Garima
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The BMP that was attached definitely answered my question about isolated supplies. It is not possible. However that doesn't fix my problem, because I have had their references tied together while trying all this troubleshooting. I tried running out of the 5 pin connector on the miniprog3 but that doesn't change anything. Furthermore, after exploring those options, the miniprogrammer software does not list my device under any protocol but JTAG. The best I can get is a list of unknown devices 0xffffffff. It can't ever seem to acquire the device in PSOC creator or miniprogrammer.
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Does anyone know if the device uses an internal oscillator or the external crystal the first time it is ready to be programmed?
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Of course, use internal oscillator when the programming is started.
If not so, When the Xtal was broken, programming never can start.
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The example schematic at end of programming specification does not show
an external clock.
Regards, Dana.