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SAME70/SAMV71 GPIO pin source current
I feel like I've read through the datasheet multiple times now looking for this, but can anyone point me to the GPIO source/sink capabilities of the SAME70/SAMV71? I'm trying to...
Wednesday, 9 December 2020 - 23:08
2-wire potentiometer ADC input protection
Hi,   I'm working on an ADC circuit and am trying to account for user error when connecting sensors to the circuit. The inputs are designed to interface with 2-wire, passive...
Wednesday, 2 December 2020 - 09:59
SAME70 CAN - Clarifying watermark, put/get indexes and batch processing
Hi,   I've got an ASF3-based CAN framework working on a SAME70Q21. At the moment I trigger an interrupt on each 'new message' FIFO RX message receipt, which works as intended...
Thursday, 19 November 2020 - 22:48
Basic CAN FIFO clarification
Hi,   I'm looking to clarify MCAN operation on the SAME70 based on the example code I've reviewed and the CAN section in the datasheet. The datasheet specifies two FIFO...
Thursday, 29 October 2020 - 00:07
SAME70Q21 ASF CAN Example
Hi everyone,   I'm trying to get a very basic CAN setup working with a SAME70Q21. Unfortunately it seems that ASF doesn't have a basic CAN example for the SAME70 (although it...
Wednesday, 7 October 2020 - 21:25
SAME70 UART RX DMA Circular Linked List
Hi all,   My SAME70 receives data via the UART0 interface. I've confirmed successful implementation of the ASF UART drivers, and can see the correct data being received with...
Thursday, 9 July 2020 - 06:42
lwIP Raw TCP Data Transmission
Hi,   My SAME70Q21-based device uses the Ethernet interface to send data to a CPU situated elsewhere on the same PCB (i.e. a direct Ethernet connection, no switches or...
Thursday, 16 April 2020 - 03:45
SAME70 Timer Capture Issues
Hi,   I'm working with a SAME70 and need to calculate the frequency of an input square wave on a GPIO pin (PIO_PA5 in this example). I've read through the various Timer and...
Wednesday, 25 March 2020 - 03:22
Unable to ioport_set_pin_level for specific pins
My foray into ASF isn't going quite as planned    Following on from this post I'm looking to implement a basic bitbang sequence to a shift register. As I've never used...
Thursday, 7 November 2019 - 07:42
Shifting data from SAME70 via TWIHS
Hi,   I have an ATSAME70Q21 (144-pin) MCU on my board, which (among other things) is used to drive 3 TLC5971 LED driver ICs. The TLC5971s are essentially shift registers,...
Wednesday, 6 November 2019 - 04:20
6-layer stack confirmation
Afternoon,   I've been back and forth with various PCB manufacturers this week regarding their 'standard' 6-layer configurations. The following diagram represents the...
Sunday, 30 June 2019 - 03:49
MCU ADC input when MCU powered down
Morning,   I have an external battery which is permanently connected to my device. I have a basic A/D circuit to read the voltage of the battery (current limiting resistor...
Sunday, 23 June 2019 - 23:20

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