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How can I dynamically determine heap used? I am working on a safety critical medical device on a SAMV71. One of the requirements is that the program monitor the heap usage dynamically and generate a warning when the... |
Friday, 11 February 2022 - 14:19 |
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ASF 4 Flashdriver Callback causes infinite loop I am using the ASF 4 EFC driver routines to write to internal flash on a SAMv71. I registered a callback so that I can tell when the Flash is ready to accept a new command.... |
Thursday, 11 February 2021 - 21:43 |
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Why Can’t I see Watchdog Reset in RSTC? (SAMV71) I have written code to determine the cause of a Reset on a SAMV71. The RSTC Status Register contains a code that can tell me if the CPU reset was caused by General Reset (powerup... |
Thursday, 4 February 2021 - 21:14 |
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SAMV70 – How to Run ADC without Interrupts? I am trying to figure out how to run the ADC without interrupts on a SAMV70 using ASF4. My current code runs both ADC0 and ADC with all channels sampling at 20 msecs using... |
Thursday, 7 January 2021 - 19:39 |
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Atmel Start ASF4 Bug List I have now been using the Atmel Start (AS4) tool for 8 months and I have compiled a list of the bugs I have found so far. Please feel free to add to this list. I hope this will... |
Monday, 30 November 2020 - 16:16 |
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Error in ASF Uart Interrupt Handler? I am tracking down an issue where I lose occasional bytes received through the UART (SAMV70). I am running at 115Kb. I am using RX interrupts and setting the UART to... |
Saturday, 21 November 2020 - 22:08 |
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Problem with V70 Quadrature Decoder I am using a SAMV70 processor as a Quadrature decoder to read a position sensor. I have it configured for just Timer Counter Channel 0 with no Index. My sensor counts... |
Saturday, 14 November 2020 - 19:05 |
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How can I independently change PWM channel settings in ASF4? Atmel Start has a driver for PWM that allows you to control up to 4 PWM channels. The configuration lets you set the initial period and duty cycle for the PWM channels. I... |
Friday, 2 October 2020 - 19:31 |
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Can Pullups be enabled on Analog Input pins? I would think that pull-ups / pulldown resistors are disabled (SAMV71, ASF4) when an Analog function is selected for an ADC pin. However, I can’t find anything in the data sheet... |
Wednesday, 9 September 2020 - 20:37 |
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How to write to GPNVM on V71 from program? I want to use the SAMV71 built in bootloader to boot my program from USB. In order to get the V71 into bootmode from my application software, I need to change the GPNMV bits... |
Wednesday, 26 August 2020 - 18:12 |
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My ASF4 USB CDC Virtual Comm port works, but Why? (SOLVED) The information on using ASF4 with USB is somewhere between sparse and non-existent as far as I can tell. I actually have my USB CDC virtual COM port working. However, I am... |
Friday, 21 August 2020 - 19:47 |
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How to trigger DAC from TimerCounter? I want to use the SamvV71 DAC to generate a waveform at a specific frequency. I am using the ASF4 drivers but I can’t find a good example for the DAC. I am setting up TC0... |
Friday, 14 August 2020 - 11:44 |