small atmel SAM S70 based dev board.
* 300 MHz ARM cortex-M7
* 2MB flash
* 384k RAM
* 480 Mbps high-speed USB
* micro sd card
* battery charger
* 64 x 34 mm
Are there any tricks to USB on the S70? My project (https://hackaday.io/project/20772-orthrus) has an S70N19 and SAM-BA works properly, but I'm building firmware with Atmel Start and USB just doesn't seem to work at all. I'm paranoid that I made some kind of bonehead mistake in either the schematic or layout and that SAM-BA working is just a coincidence something.
I think if you would keep the same pinout as the Raspi for power, GND, I2C, SPI and UART, a lot of Raspi Hat would be compatible. Would that be too much of a burden with the PCB routing ?
Are there any tricks to USB on the S70? My project (https://hackaday.io/project/20772-orthrus) has an S70N19 and SAM-BA works properly, but I'm building firmware with Atmel Start and USB just doesn't seem to work at all. I'm paranoid that I made some kind of bonehead mistake in either the schematic or layout and that SAM-BA working is just a coincidence something.