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18 Commits

Author SHA1 Message Date
Scott Gauche a8d8651873 Canonical C style for half_duplex = true/false 2022-02-08 23:13:22 -05:00
Scott Gauche 89ad767b8f add half_duplex to spi constructs in other ports but raise not implemented errors 2022-02-08 22:25:23 -05:00
Dan Halbert cc410ad6a3 common-hal I2C combined write_read 2022-01-31 22:03:30 -05:00
Dan Halbert afd686986a
Merge pull request #5800 from tannewt/rpi_zero 
Initial Pi Zero support
 2022-01-07 09:05:30 -05:00
Scott Shawcroft 2a2f94df15
Update tinyusb for zero support 2022-01-06 08:52:33 -08:00
Scott Shawcroft 48d826b15d
Never reset SD card pins 2022-01-04 19:08:14 -08:00
Scott Shawcroft 756b9f6dfa
Initial Pi Zero support 
Both SD card and USB don't work. REPL works over UART.

Progress on #5631
 2021-12-30 18:32:59 -08:00
jerryneedell 14815f6de7 fix typo in comment 2021-12-30 14:12:37 -05:00
jerryneedell 9dea49516e update logic for JTAG pull downs 2021-12-30 14:09:43 -05:00
jerryneedell ed3ddea2da set pulldown for broadcom jtag pins 2021-12-28 11:26:47 -05:00
Scott Shawcroft 5e4cb4f1e2
Yes, index is unused. That's ok. 2021-12-15 13:46:31 -08:00
Scott Shawcroft 2693e2ce0a
Add neopixel support on PWM capable pins 
It'll be hard to do PWM from them concurrently

Fixes #5697
 2021-12-14 16:59:53 -08:00
Scott Shawcroft 6626319338
Add SPI support 
It uses both SPI and AUX SPI peripherals
 2021-12-09 17:30:03 -08:00
Scott Shawcroft 92a4261ad5
Full UART support for RPI 
This adds PL011 UART support which is more plentiful.

It also:
* Fixes PI4 build by including .dtb files on the SD card.
* Enables the activity LED as the status LED on PI4 and CM4 I/O.
* Adds that LED as board.LED.

Fixes #5650 and progress on #5629
 2021-12-06 18:36:14 -08:00
Scott Shawcroft 8adb0ecd33
Fix loop bounds 2021-12-02 10:28:26 -08:00
Scott Shawcroft 2433c9572c
Add full pin mux info and use it for I2C 
All I2C peripherals should be usable now. This also adds pin
in-use tracking and resetting.

Part of #5629
 2021-12-01 17:19:57 -08:00
Scott Shawcroft 927a720de9
Fix I2C and feedback from Dan 2021-11-23 17:23:13 -08:00
Timon a1052d5f73
Initial broadcom port for Raspberry Pi 
This targets the 64-bit CPU Raspberry Pis. The BCM2711 on the Pi 4
and the BCM2837 on the Pi 3 and Zero 2W. There are 64-bit fixes
outside of the ports directory for it.

There are a couple other cleanups that were incidental:
* Use const mcu_pin_obj_t instead of omitting the const. The structs
  themselves are const because they are in ROM.
* Use PTR <-> OBJ conversions in more places. They were found when
  mp_obj_t was set to an integer type rather than pointer.
* Optimize submodule checkout because the Pi submodules are heavy
  and unnecessary for the vast majority of builds.

Fixes #4314
 2021-11-22 14:54:44 -08:00