How to get into ISP mode

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Chip: At32UC3C2512, 64 pin. Any ideas how the get this chip into ISP mode? 64 pin version doesn't have a PA14 pin. Is there an alternative pin for 64QFP?

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Download the AT32UC3C Data Sheet

On page 11 you find Table 3-1

Follow the first column down [QFN 64]

Pins associated with SPI are;

33, 39, 40, 41 etc, there are many other pins that can be used for SPI functions.

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UC3 devices don't support ISP programming mode. Only JTAG and aWire.

Letting the smoke out since 1978

 

 

 

 

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digitalDan wrote:
UC3 devices don't support ISP programming mode. Only JTAG and aWire.

Then what is the ISP register at 0x808001FC for?

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Where did you get that address? The peripheral registers start at 0xFFFD0000 and go up.

Letting the smoke out since 1978

 

 

 

 

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I think he is confused by reading the bootloader document? UC3 devices with an USB device interface ships with a pre-programmed USB bootloader, capable of programming the device.

Hans-Christian