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Sam D10/D20 ADC freerunning mode
Hello Jcandle!   No, it has nothing to do with the sampling capacitor, as I have increased the sampling time drastically, and the results were absolutely the same. I have the...
Monday, 16 April 2018 - 22:47
Sam D10/D20 ADC freerunning mode
Thanks Jcandle for your answer!   The same sentence with resuming a transaction is also mentioned in the D10 manual. But it is difficult to imagine, that new settings for a...
Monday, 16 April 2018 - 17:10
D20 USART interrupt
Thank you Larry for your nice words!    Yes, I fully agree with you! And yes, I did not introduce a FIFO or even ring buffer. That's another item, another chapter, I...
Tuesday, 20 March 2018 - 18:41
Impossible Graphics Power from an ATiny85!
Incredible, absolutely awesome, congratulations!!! And assembly language rules!!!
Friday, 16 March 2018 - 10:14
D20 USART interrupt
Very friendly of you, ok, code remains as a bad, unintended example :-) I can correct the missing defines in my code example, so that it is compileable for SAM D10. Whether few...
Thursday, 15 March 2018 - 21:30
D20 USART interrupt
Larry, I understand your argument, normally you are absolutely right! Originally I did not intend to spread my code (when I did it, I did not think over), because programming is...
Thursday, 15 March 2018 - 21:08
D20 USART interrupt
Yes I know Lars, also ready structures exist. Even ready code.  But I do not like their long and complicated names. And strange expressions are difficult to keep in ones...
Thursday, 15 March 2018 - 17:36
D20 USART interrupt
Hello Maaply!   Of course, generally ARM Cortex M family, even the plain M0(+) are diffent worlds, compared with AVR. AVR is kindergarden, ARM Cortex university :-) I give...
Thursday, 15 March 2018 - 08:56
D20 USART interrupt
Hallo Larry vc!   Very interesting graphical surface you introduce here to create code. But the disadvantage is like with ASF, you do not know, how the uC works, what is...
Thursday, 15 March 2018 - 08:33
Powering SAML21 from 3.6 battery and voltage drops
How long is the 200 mA burst? If short (less than some ms), an electrolytic capacitor and a schottky diode could decouple the uC from the Sigfox module, so that the DC...
Wednesday, 14 March 2018 - 19:19
D20 USART interrupt
I give you my Sercom_handler, written for SAM D10. Therefore you must possibly adapt some register addresses for your D20:   void SERCOM1_Handler()     {...
Wednesday, 14 March 2018 - 16:30
Hard Fault When Debugging
Disable IRQs and check stability If stable, check interrupt handlers (always only one interrupt enabled ) for reentrant code. If Hardfaults go on, check, whether you have...
Wednesday, 7 March 2018 - 22:27