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Is this a good way to do this?
skeeve wrote: What is the matter with int sample[10][zx1]={ 0 }; ? It seems simpler to code. It probably costs the minimum (2 cycles/byte).   Initialized data like this...
Wednesday, 5 December 2018 - 19:14
External Interrupt only hits once
OK, misread your post, you are using the Xplained board.  Assuming it's the SAM G55 Xplained Pro Evaluation Kit, download the design document PDF and check the schematic...
Tuesday, 27 November 2018 - 17:17
External Interrupt only hits once
Not sure if you are using a custom board or one of the Atmel XPlained boards.  First check your schematic and trace the GPIO pin through the button and everywhere else it...
Tuesday, 27 November 2018 - 16:12
C language question/ printing functions
Dave_Zeb. wrote: for example in this expression: transmitByte('0' + number / 10);    ( '0' + number/10) = lets consider number/10 is 7, so if we rewrite it ('0' + 7) =...
Monday, 12 November 2018 - 14:48
SAM4, ASF and eMMC
Just checked the schematic for our custom PCB with a working eMMC chip.  There is a 10K external pullup on the MCCDA signal and 49.9K on the MCDAx lines.  These are...
Tuesday, 6 November 2018 - 15:51
Pulse interrupt debounce handling
Are you sure the signal is bouncing?  Have you put a scope on the pin and verified?  What type of signal are you monitoring at a 2ms period?  An encoder perhaps?...
Wednesday, 31 October 2018 - 13:03
Reading 10 bytes data from URAT rx_cb using Timer day
Dump the timer - there is no need to use a timer on top of the async USART driver.  It adds unnecessary complexity.  Plus timer_add_task() should be called once during...
Thursday, 25 October 2018 - 13:01
math.h in SAMD project
So the red underscore comes from Tomato's Visual Assist extension (VAssistX on the main menu).  Turn off VA via "VAssistX->Enable/Disable Visual Assist" on the menu and...
Wednesday, 24 October 2018 - 15:53
SAM4N16C Software Reset Delay
Hmmm, odd.  I'd check the interrupts.  Perhaps something is active early in the boot process and is not being serviced properly, exiting the ISR then re-entering over...
Friday, 12 October 2018 - 12:24
SAM4N16C Software Reset Delay
For my Cortex-M7 processor I'm using the NVIC_SystemReset() call from the CMSIS header.  It resets without delay.  It's in core_cm7.h file and listed below for...
Thursday, 11 October 2018 - 20:39
ATSAMX7EA UPLOAD CODE
As Lajon says your processor is a ATSAMV71Q21A, not a ATSAMX7EA.  So you need the ability to load your program into the builtin flash memory of a SAM V71 processor...
Wednesday, 19 September 2018 - 15:02
Programming the Atmel ARM-Cortex, Smart Series development toolchain related question
Get yourself an Atmel evaluation board like the SAM E70 Xplained, or the SAM V71 Xplained   http://www.microchip.com/Develop... http://www.microchip.com/Develop...   For...
Wednesday, 19 September 2018 - 13:26

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