Post Created date
SAMD21 multiple pins as external interrupt sources
Are you sure the clock for the EIC and the RTC are set up to run in standby?
Sunday, 24 June 2018 - 06:56
Issues with memcpy on SAML21
Still open to any ideas on this, but I changed the architecture of my design. Originally I was relying on the FreeRTOS stream buffer watermark to block until it was hit. It seems...
Sunday, 24 June 2018 - 02:39
SamD20 SysTick & sleep
ekalyvio wrote: Well, yes! I am using the watermark of both the accelerator and the gyro sensors. They both trigger an interrupt callback from which they call ...
Wednesday, 13 June 2018 - 22:59
SamD20 SysTick & sleep
westfw wrote: SysTick does not run in sleep modes since it requires the CPU clock.  This is apparently "implementation dependent", somehow.  In another thread, someone...
Wednesday, 13 June 2018 - 22:44
Issues with memcpy on SAML21
The magic numbers are only in my debug code. The actual acceleration and magnetic data was hard to tell apart so I added the memset right before transmission to make sure the data...
Wednesday, 13 June 2018 - 22:37
Issues with memcpy on SAML21
nice catch, But i was actually using memset() in my tests. It is no longer in my code though, so i typed the (wrong) line back in by hand here when I copied my code over. I fixed...
Tuesday, 12 June 2018 - 23:41
SamD20 SysTick & sleep
Is there a reason you need ms ticks? if you are looking for low power then there is no real reason to make your tick rate so high. The system I am making (and linked to my github...
Monday, 11 June 2018 - 17:27
SamD20 SysTick & sleep
SysTick does not run in sleep modes since it requires the CPU clock. Other things can still wake up the CPU, such as external interrupts, but the systick will have been stopped an...
Sunday, 10 June 2018 - 21:08
RTC periodic event / interrupt
This is not really an option, since the system needs to sleep for the majority of the time. I actually tried this (with the slower period/lower resolution) just to see because it...
Friday, 8 June 2018 - 17:18
SAME70: working with REAL usb baud-rate
CDC device class acts like a serial port, and you interact with it from the host side as if it were a serial port. But it is still USB and you will get "full" USB throughput....
Monday, 4 June 2018 - 02:43
ASFv4 CDC USB sending garbage data when used with freeRTOS
Just for anyone finding this post, the problem ended up being a bad USB Hub. Kind of wild since many of the errors were 1-bit off and USB packets have CRCs built in... I ended up...
Saturday, 2 June 2018 - 08:56
XMega Fulle Speed USB with low CPU voltage
thanks, I've been looking at the silabs offerings, but it seems like every bridge chip enumerates as either a HID or CDC device without letting my micro handle any of the...
Wednesday, 12 July 2017 - 21:15