nRF52340 USB SPI3

[TobiasLaut]

 Initializing the USB inerterface blocks the SPI3 interface. The SPI3 is not responding to any commands like reset. We do not use any SPI interrupts, just read the registers. Do you have a solution for this problem?

[TobiasLaut]

Thank you for your help. We checked for all possible Errata. We do not use PPI, thus the only possibility is the EVENTS_END bug [193]. The SPI3 communication stops working after connecting the device via usb to a windows PC. 

[TobiasLaut]

*(volatile uint32_t *)0x4002000 = -1 improves the situation but does not solve it completely