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SAMD21 enable External IRQ causes USART to stop working
Hi All,   I was hoping someone could please help me.   I have a project using the SAMD21 and ASF4. The SAMD21 communicates to an external peripheral via USART.   I...
Saturday, 7 May 2022 - 14:32
SAMD21 Internal flash read and write not retaining values
Hi,   I was using the atmel start example for reading and writing to flash as illustrated below:   The problem im seeing is that when I power off the system and power...
Wednesday, 30 March 2022 - 08:34
USB Host CDC ACM failed to write
Hi,   I was hoping you could please help me with this issue.   Im using a SAMD21 with ASF4 as a virtual USB host to send and receive data. I can successfully send and...
Friday, 18 March 2022 - 11:03
SAMD21 Sleep standby mode still drawing more than 4uA
Hi,   I have been trying to get the SAMD21 to go into sleep(3) mode. I can see that the chip does go into this mode however I noticed that it is still using alot more than...
Wednesday, 18 August 2021 - 13:37
SAMD21 flash erase page row instead of entire page
Hi All,   working with the older ASF3 framwork I was able to via NVM Access Managementt to erase page rows using   enum status_code nvm_erase_row( const uint32_t...
Thursday, 13 May 2021 - 15:31
USART Async using Hardware flow control
Hi All,   im new to the community. Im using a SAMD21 micro and I have been trying to locate a basic example of using USART Async with hardware flow control lines.   The...
Wednesday, 12 May 2021 - 11:09