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SPI output on SAM D20
Are you sure channel 03 purple is on the SPI-Enable line?  It looks like the data line (MOSI) with b7..b0=11000000=0xC0=192.  You can check it by sending 0x0C and see if...
Wednesday, 31 January 2018 - 15:27
SAMD21 NVMCTRL ADDR register
Don't know exactly but one trick with byte memory set/copy/erase functions is to use pointers to 32-bit quantities and increment those pointers by one 32-bit quantity each time...
Monday, 29 January 2018 - 18:09
math sin wave
<first response deleted - apparently I'm no good at maths either>   Two thoughts: 1. make sure your sin() function expects degrees from 0.0 to 360.0, not radians or...
Monday, 29 January 2018 - 17:59
Using Clock Config from Atmel Start and EEPROM from ASF?
You want to mix ASF4 (Start) with ASF3.  They don't play together well automatically.  But it can be done manually.   I've had success splitting a "Solution" into...
Monday, 29 January 2018 - 14:30
Printf doesn't work in Start generated project
The EDBG UART project from START uses the driver's io_read() and io_write() functions only.  To add printf() capability you need to add support for stdio redirect in the...
Monday, 29 January 2018 - 14:18
Can we use read_callbacks when using Standard Serial I/O (stdio) driver (ASF 3)?
ASF3 or ASF4?  Are you using the sync or async usart drivers? In ASF4 for whatever reason it requires you to use the sync drivers with START.  But it's easy enough to...
Monday, 29 January 2018 - 13:54
C++ alignas keyword
azy.development wrote: Ah good call. Looks like the AS7 release notes say ARM GCC is 4.9 and it does look like GCC 4.8 has support: Really?  That's a pretty old version of...
Wednesday, 24 January 2018 - 15:41
Question for SAM E70 SSC Usage / Frequency Configuration
I took a quick look using start.atmel.com, SAME70Q20, adding I2S, and playing with the clocks.  There are quite a few paths upstream to configure the clocks.  Not sure...
Tuesday, 23 January 2018 - 19:05
Nano second daly with SAME70
Not possible.  The fastest E70 clock is 300Mhz with a period of 3.33ns.  The fastest single cycle instruction cannot be faster than the processor clock. But if you drop...
Monday, 22 January 2018 - 18:07
SAME70 Dual CDC and MSD USB Device possible?
Don't know the answer to your specific questions but I can say with certainty that ASF4/START does not support more than one CDC on the SAME70.  You will need to use ASF3 for...
Friday, 19 January 2018 - 20:35
Solved: unintended pause with a stepper motor during the ramp up phase
Make sure the stepper motor ISR is higher priority than your serial port ISR.  It's likely the pause is due to servicing the Serial.println() call inside the loop (while the...
Friday, 19 January 2018 - 17:30
Connecting SAME70 XPLAINED kit wtih JTAG
I'm pretty sure with the SAME70 chip the JTAG port is not available for programming, just boundary scans.  But SWD is available.  So use a SWD compatible programmer...
Monday, 15 January 2018 - 22:31

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