circuitpython

djsundog/circuitpython

Fork 0

Commit Graph

Author	SHA1	Message	Date
robert-hh	9a567b04e7	samd/machine_uart: Support buffered TX for UART. It can be enabled/disabled by a configuration switch. The code size increase is 308 bytes, but it requires RAM space for buffers, the larger UART object and root pointers.	2022-10-06 22:57:37 +11:00
robert-hh	3625388d8c	samd/samd_isr: Change the way a Sercom ISR is registered and called. Code size diff: +12 Bytes BSS diff: -12 Bytes RAM usage: +16 Bytes Speed increase: a few clock cycles per call Style improvement: ++	2022-10-06 22:52:10 +11:00
robert-hh	b33f204529	samd/machine_uart: Add the machine.UART class. All board pins that have UART's assigned can be used. Baud rate range is 75 Baud to ~2 MBaud. No flow control yet, and only RX is buffered. TX buffer and flow control may be added later for SAMD51 with its larger RAM and Flash.	2022-10-06 22:48:12 +11:00

Author

SHA1

Message

Date

robert-hh

9a567b04e7

samd/machine_uart: Support buffered TX for UART.

It can be enabled/disabled by a configuration switch.  The code size
increase is 308 bytes, but it requires RAM space for buffers, the larger
UART object and root pointers.

2022-10-06 22:57:37 +11:00

robert-hh

3625388d8c

samd/samd_isr: Change the way a Sercom ISR is registered and called.

Code size diff: +12 Bytes
BSS diff: -12 Bytes
RAM usage: +16 Bytes
Speed increase: a few clock cycles per call
Style improvement: ++

2022-10-06 22:52:10 +11:00

robert-hh

b33f204529

samd/machine_uart: Add the machine.UART class.

All board pins that have UART's assigned can be used.  Baud rate range is
75 Baud to ~2 MBaud.

No flow control yet, and only RX is buffered.  TX buffer and flow control
may be added later for SAMD51 with its larger RAM and Flash.

2022-10-06 22:48:12 +11:00

3 Commits