How to get into ISP mode

Log in or register to post comments
Go To Last Post
6 posts / 0 new
Author
Message
scorpdaddy
scorpdaddy's picture
Level: New Member
Joined: Sun. Mar 18, 2012
Posts: 8 View posts
#1
Posted by scorpdaddy: Sun. Mar 18, 2012 - 03:57 AM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

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?

Tags:

Tools, Evaluation and Development Kits (AVR-related)
Top
jabram
jabram's picture
Level: Hangaround
Joined: Thu. Jul 21, 2005
Posts: 119 View posts
Location: Australia
Posted by jabram: Mon. Mar 19, 2012 - 01:17 AM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

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.

Top
digitalDan
digitalDan's picture
Level: Resident
Joined: Sat. Nov 1, 2008
Posts: 614 View posts
Posted by digitalDan: Mon. Mar 19, 2012 - 10:49 AM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

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

Letting the smoke out since 1978

 

 

 

 

Top
scorpdaddy
scorpdaddy's picture
Level: New Member
Joined: Sun. Mar 18, 2012
Posts: 8 View posts
Posted by scorpdaddy: Fri. Mar 23, 2012 - 02:26 AM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

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

Then what is the ISP register at 0x808001FC for?

Top
digitalDan
digitalDan's picture
Level: Resident
Joined: Sat. Nov 1, 2008
Posts: 614 View posts
Posted by digitalDan: Fri. Mar 23, 2012 - 10:50 AM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

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

Letting the smoke out since 1978

 

 

 

 

Top
hce
hce's picture
Level: Raving Lunatic
Joined: Tue. Jan 7, 2003
Posts: 4581 View posts
Location: Oslo, Norway
Posted by hce: Fri. Mar 23, 2012 - 12:10 PM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

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

Top