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EVSYS_ID_USER_ADC_START on SAML21
EVSYS_ID_USER_ADC_START on SAML21 doesn't seem to work unless I select EVSYS_CHANNEL_PATH_ASYNCHRONOUS. On SAMD21 EVSYS_ID_USER_ADC_START is "Asynchronous path only". But on...
Friday, 4 September 2020 - 14:01
Trying to make sense of SAML21 datasheet
It says "When an analog peripheral is enabled, the analog output of the peripheral will interfere with the alternative functions of this pin. This is also true even when the...
Thursday, 13 August 2020 - 20:21
AC_COMPCTRL_INTSEL_FALLING on SAMD21
The comparator output generates an event tied to a TC timer capture. Everything seems good if AC_COMPCTRL_INTSEL_RISING. I see both TC->COUNT16.INTFLAG.reg and AC->INTFLAG....
Tuesday, 11 August 2020 - 16:14
Trying to make sense of SAMD I2C datasheets
They have two formulas (see SAMD10 datasheet, for example): fSCL = 1 / tLOW + tHIGH + tRISE fSCL = fGCLK / (2 * (5 + BAUD) + fGCLK * tRISE) Am I the only one who thinks that the...
Friday, 3 July 2020 - 18:46
Pin mapping of all USART0 can optionally be moved to high nibble of port
How? On ATxmega64A3U, for example. Not that I need to, just curious.
Thursday, 14 November 2019 - 22:21
avr-gcc bug?
The toolchain is "AVR 8-bit Toolchain v3.62 – Windows", which I just got from: https://www.microchip.com/mymicr...   #include <stdio.h> volatile uint8_t vv; static...
Tuesday, 27 August 2019 - 14:01
Standalone atprogram (again)
I have been using a standalone atprogram for a while. It's from a 6.2 Studio and the USB drivers:   from http://ww1.microchip.com/downloa...   from https://www.microchip...
Wednesday, 17 April 2019 - 12:31
CLK_CPU and CLK_PER on 0-series
Are they always the same or not? It looks that they are. But I don't see this clearly spelled in the (ATmega4809) datasheet. Interestingly, one of the older ATtiny417/814/816/817...
Saturday, 6 April 2019 - 18:05
Serial Downloading
AVR datasheets include Serial Downloading section that define a way to reprogram flash/EEPROM/fuses. Is there something similar for SAMD's?
Friday, 8 December 2017 - 18:52
Is it possible to modify a flash location from the debugger?
Well, the title says it all. Captcha! Argh!
Thursday, 13 July 2017 - 01:05
Not happy with Atmel/Microchip support
I need to vent. Absolutely not happy with Atmel/Microchip support. There is unexplained hard fault (https://community.atmel.com/foru...). - I provided a short complete compilable...
Wednesday, 29 March 2017 - 13:41
Toolchain release notes
Is there release notes somewhere that would tell me what changed between different versions of the GCC toolchain? In particular, I'm looking for changes between the following two...
Sunday, 5 March 2017 - 02:05

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