Benjamin Valentin 585dc15f99 cpu/sam0_common: UART: implement inverted RX & TX ... The UART TX and TX lines on SAMD5x and SAML1x can be inverted. However, the flags don't do exactly what one would expect. See errata 2.18.5: SERCOM-UART: TXINV and RXINV Bits Reference: > The TXINV and RXINV bits in the CTRLA register have inverted functionality. > > Workaround: > In software interpret the TXINV bit as a functionality of RXINV, and conversely, > interpret the RXINV bit as a functionality of TXINV.		2020-06-16 22:55:37 +02:00
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vendor	cpu/sam0_common: samr30: add integer literal macros	2020-02-25 21:52:24 +01:00
cpu_conf.h	Merge pull request #12928 from benpicco/newlib-multiheap	2020-02-25 19:16:42 +01:00
exti_config.h	cpu/sam0_common: use generic exti_config	2020-02-20 11:23:51 +01:00
periph_cpu_common.h	cpu/sam0_common: UART: implement inverted RX & TX	2020-06-16 22:55:37 +02:00
sam_usb.h	sam0_common: Add USB peripheral driver	2019-03-26 10:26:11 +01:00