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Questions tagged [samd51]

7 questions
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How does the memory layout of a struct of 2 floats differ from an array float[2][1]?

I can successfully cast a pointer to a struct of 2 floats to a void pointer (used to discard incompatible pointer types warning), and then cast that to a float array and use that normally, however it doesn't seem to work in reverse with…
TheRedstoneHive
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Can't get gpio ouput working after pins were used for spi (SAMD51)

I am writing in c++ for SAMD51G19A. I have a project that someone else wrote that I am wanting to make some changes to. In the interest of speed and not knocking down the figurative Jenga tower, I want to change as little of what is already there as…
Indi008
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How to set Chip Erase Lock (CELCK) on SAMD51 microcontroller?

I am trying to execute the Chip Erase Lock command (CELCK) on Microchip/Atmel ATSAMD51J20A microcontroller. I am using the following procedure: Wait for NVMCTRL STATUS.READY bit to set. Clear NVMCTRL INTFLAG.DONE bit and INTFLAG.PROGE bit if…
theihaq
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Multiple definition error while attempting to edit bootloader of SAMD51

I am currently working on adding some new functionality to a SAMD51 bootloader. The original bootloader code I am basing this off of is the Adafruit UF2 bootloader for SAMD microcontrollers, found here: https://github.com/adafruit/uf2-samdx1 I am…
David
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micropython uart.read() in SAMD51 is incomplete (only 2 bytes returned)

I have an ATSAMD51 microcontroller integrated in a project-specific board which has also a xbee3 RF module. This xbee3 module is configured for Transparent Mode and the device type is 'router'. I can check this on the XCTU software. Now, my goal is…
Carlos Mão de Ferro
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Issues with EEPROM functions not saving data for board type (Arduino)

I am trying to work on an Arduino project and for some reason, I cannot get it to store the data on the Adafruit Metro M4 controller or data logger shield (saving so that when reconnected, the data entered would still be there). I have an SD card…
user15881691
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Where is the default Arduino TwoWire constructor defined?

I'm a bit confused by something in the TwoWire Arduino library. The Wire.h and Wire.cpp files define a single constructor which requires three arguments: TwoWire::TwoWire(SERCOM * s, uint8_t pinSDA, uint8_t pinSCL). Yet the Wire.h file instantiates…
David Patterson
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