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atprogram without -chiperase
Has anyone tried atprogram without chiperase? Supposedly it should erase the affected pages automatically ("SAM devices will always do this"), but it looks that it does not....
Thursday, 2 February 2017 - 18:06
Reading ADC->INTFLAG.reg seems to clear the RESRDY bit. On samd20 and samd21. What am I missing?
Saturday, 19 November 2016 - 04:14
SAMD flash write
OK, I understand that it has to be erased in (256 byte) rows. But it looks that it has to be written in 64-byte chunks? Really? Am I missing something? Looking at application...
Wednesday, 2 November 2016 - 16:41
Internal pullup on RX
So, on megas and xmegas one can enable internal pullup on USART RX lines. I just tried the same on SAMD21 and that does not seem to work. I.e., it looks that as soon as I add...
Monday, 20 June 2016 - 17:53
SAMD21 does not always start on power-up
An application often does not start on powerup. Starts just fine on external reset. Default fuses. Minimal initialization. No fancy clocking, just internal OSC8M. Just flashes an...
Friday, 20 May 2016 - 03:06
Difference between Device Variant A and Device Variant A
This is in the Errata for the SAMD21. Anybody knows which one is which and what is the difference between them? And what is the difference between Revision B and Revision B and...
Friday, 20 May 2016 - 01:50
Problem installing driver bundle (on an XP SP2 system)
A colleague of mine was unable to install the driver bundle. Got multiple "Error 0x800b010a: Failed authenticode verification of payload" (see a chunk of the log file below). That...
Tuesday, 1 December 2015 - 01:48
XML files in Studio 7
Can someone with Studio 7 tell me if it still has the devices/*.xml files like the previous versions? Any atsaml*.xml files there too? Thanks, Eugene
Thursday, 26 November 2015 - 11:09
Atmel USB Driver Package certificate error
Tried installing the drivers on an 8.1. Got an error described here: http://atmel.force.com/support/a... I'll try a newer version, I guess. But can anybody tell me what this crap...
Wednesday, 18 November 2015 - 00:46
EDBG Virtual COM Port
Not sure which forum this belongs to. If I write to a Windows COM port that has no flow control of any kind, why would a write block indefinitely? This happens when I try to write...
Monday, 19 October 2015 - 14:03
What is an "input buffer"?
The SAMD10 datasheet says the following about the INEN bit in the PINCFG registers: "Writing a zero to this bit disables the input buffer completely, preventing read-back of the...
Monday, 21 September 2015 - 02:00
XOSC startup delay on SAM D
Let's say I want to use XOSC as a source for GCLK0. It would be something like this, roughly, right? void config_gclk0_with_XOSC_as_a_source(void) { SYSCTRL->XOSC.reg = 0...
Monday, 21 September 2015 - 01:17