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PTC Baremetal / without QTouch Library I'm using an ATSAML21 chip. The datasheet section on the Peripheral Touch Controller is a joke - no registers listed, and the Functional Description doesn't describe squat.... |
Sunday, 16 February 2020 - 12:46 |
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Demystify DAC Empty Event on SAM L21? I'm building a project using the DAC on the SAM L21. I thought I could use the DAC's EMPTY0 event to feed new samples into DATABUF0, but it's not working the way I would... |
Tuesday, 11 February 2020 - 08:14 |
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Reading/writing a SAML21 pin clobbers synchronous event output to all other pins While troubleshooting the DAC on my SAM L21, I tried to set up a pin to monitor one of its event signals. I configured a new channel that triggers off the DAC's EMPTY0 event... |
Monday, 10 February 2020 - 12:49 |
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Source for __libc_init_array and other mystery code showing up in my disassembly I have a very simple Atmel Studio 7 project for the SAM L21, and the disassembly shows some machine code generated after the end of my vector table, but before my reset handler or... |
Friday, 31 January 2020 - 04:01 |
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Stepping artifact on SAM L21 DAC transitions I'm seeing this stepping artifact coming from the DAC of an ATSAML21J18B on a SAM L21 Xplained Pro board at the start of conversions: ... |
Friday, 24 January 2020 - 09:31 |
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DISKIO for SAM L21 I'm using Atmel START to generate a project for my SAM L21 Xplained Pro (ATSAML21J18B). When I attempt to add a DISKIO middleware component I get the error "Missing... |
Thursday, 9 January 2020 - 07:05 |
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Atmel SAM L21 CPU startup I'm reading the datasheet for the SAM L21 family and in section 9.3.4 Fetching of Initial Instructions it mentions: After Reset has been released, the CPU starts fetching PC and... |
Monday, 6 January 2020 - 21:41 |
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Missing symbols in avr-libc I'm using an ATtiny861a, and noticed iotn861a.h has several macros defined under "Device Pin Definitions", for example: #define PB0_DDR DDRDOSI #define PB0_PORT PORTMOSI #... |
Thursday, 10 October 2019 - 02:57 |
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AVRDUDE Could not find USB device "USBasp" error, despite driver being installed I'm trying to program an ATmega162 using my 51 AVR ISP programmer. When I run avrdude, I get this error: C:\Program Files (x86)\Atmel Studio\AVRDude>avrdude -p... |
Friday, 8 June 2018 - 18:10 |
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Keyboard Shortcut and Menu Bugs in AVR Studio 4 Apologies if any (or even all) of these have been reported before. 1) Customized keyboard shortcut for Build command not honoured To reproduce, remove F5 from the RUN command and... |
Thursday, 27 August 2009 - 05:51 |
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When to set Sleep Enable Generally the Atmel datasheets are pretty clear, but I'm trying to figure out how to interpret this tidbit: Quote:The SE bit must be set (one) to make the MCU enter the Sleep mode... |
Wednesday, 26 August 2009 - 06:54 |
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Volatile or Register? Hi guys, I'm trying to squeeze all the optimization I can out of GCC, and wouldn't mind some input. I have global variables that are updated in an interrupt. I've noticed when I... |
Tuesday, 25 August 2009 - 05:51 |