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SAM4 bootloader - good progress, but a couple of Qs
I do no want to be guilty of inter forum cross-posting, so here's a link to the post I just made in the AT91 forum. http://www.at91.com/forum/viewtopic.php/f,29/t,22140/p,40616/#...
Saturday, 18 January 2014 - 11:08
Writing to Flash for SAM4S
Does anyone have any experience of this? I can't make head or tail of the documentation. In particular, I don't understand where the "internal latch buffer" is, or how to access...
Saturday, 11 January 2014 - 10:46
Bootloader support for SAM4S16C
I need to write a bootloader for the SAM4S16C. I know it has a built-in SAM BA in ROM, but, as far as I can tell, there is no timeout mechanism, so in the event that the GPNVM bit...
Wednesday, 8 January 2014 - 20:18
Where files should go in AS6.1(so Visual Studio question?)
I am unsure as to how to organize files in AS6.1 If I just lump everything into the scr folder it works, but I would rather separate things into folders. However, if I add .c...
Tuesday, 24 December 2013 - 11:53
RE: How can i creat flash table in C?
Quote: the avr-gcc compiler chooses to implement "__flash" and no special pgm() accessor functions are required any more. When did this happen? I feel so out of date now!...
Thursday, 19 December 2013 - 09:13
Redirect printf on SAM4(asf)
Anyone have any ideas how I can redirect printf stdout to my TFT print function? The AVR methods that I have used for XMega etc. don't seem to exist.
Friday, 13 December 2013 - 11:47
Using assembler for SAM4
Inevitably, I will want to explore the use of assembler on the SAM4. Is there any information about register usage for arguments/return values etc? This is well-documented for...
Tuesday, 3 December 2013 - 09:16
Reading 10 switches with five I/O pins.
I suggested a while back in response to another thread that, provided one is not concerned with multiple simultaneous switch closures, it should be possible to read 6 switches...
Friday, 15 November 2013 - 17:29
printf with floats
I know I really shouldn't have to ask this, as I have been through this before with XMega projects, but I'm having a hard time getting printf to work with floats in AS6.1 in my...
Saturday, 9 November 2013 - 00:27
Help shows wrong prototype info
I'm not sure if this belongs here or in the ASF forum. Still learning to use AS6 and ASF, and I have to say that I don't dislike it as much as I did. One problem I've encountered...
Thursday, 10 October 2013 - 11:54
SAM4 JTAG ICE3
Probably a dumb question, but if I go down the SAM4 route for my current application/product, will I be able to use the Atmel JTAG ICE3 on the target PCB? Currently all my...
Friday, 6 September 2013 - 13:41
SAM4 TWI master example anywhere?
Is there any example code for using the TWI on the SAM4S? The problem I'm coming up against is that I can't find the definition for TWI0, which I believe is the device structure...
Tuesday, 3 September 2013 - 08:39

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