Questions tagged [atsamc21]

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Which pins of ATSAMD51 are used for I2C in Adafruit Grand Central?

I am trying to recycle my old Adafruit Grand Central board to use with Atmel Studio.I Adafruit website , I2C pins ( SDA , SCL ) are marked as PB20 and PB21 to be used as SERCOM-3 but in ADSAMD51 ...
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10 views

ATSAM / ASF4 - how to use HRI driver

While trying to change the analog reference voltage in ATMEL Studio for ATSAMC21 I found no way to configure this in ATMEL start and in the higher level drivers. So I searched around the ASF a bit ...
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13 views

ATSAMC21 - Change ADC reference voltage

I'm trying to change the ADC reference voltage on an ATSAMC21. However whatever i tried so far it is not working. I am using ATMEL Start to created the clock configuration and ADC configuration. I am ...
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87 views

Error 4109 No device detected in Atmel Studio

I'm working on a project involving an ATSAMC21. I soldered it onto the board and tested all pins to ensure that; a) they weren't shorted to the adjacent pins, b) they were connected to the nodes that ...
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25 views

ATSAMC21N18A xplained board Boot/App reprogramming issue

I am using ATSAMC21N18A xplained board for a project. I created a bootloader partition. I was able to run and flash it on the target. Then started working on application. It has correct start ...
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24 views

ATSAM4E UART1 interrupt not working

I am working on ATSAM4E8C on custom board. The uart0 and its interrupt is working fine but while on uart1 I faced an strange issue. The uart1 is sending the data but interrupt handler is not calling ...
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2answers
129 views

ATSAMC21 - CAN configuration - Nominal bit timing vs. data bit timing & time quanta calculation

I'm trying to configure the CAN bit rate of an ATSAMC21 to 125ksps in a CAN2.0B configuration. However, after reading through the datasheet, the ASF documentation and the ATMEL start help I'm confused....
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62 views

power consuption of internal 32kHz RC oscillator

I am looking for the typical power consumption of the OSCULP32K (Ultra Low Power Internal 32kHz RC Oscillator) of ATSAMC20J18A. Found nothing in family datasheet so far, only XOSC32K. Can I expect the ...
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22 views

SAMC21 - SDADC - VREF B - which pin?

I'm planning to use an ATSAMC21G16 in one of my current projects. But I got a hard time finding the correct pin in the Datasheet for the SDADC. On page 907 the block diagram shows, that VREFB can be ...