nuttx/Documentation/platforms
dechao_gong d960bc39ee
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arch/arm/rtl8721f: add GPIO character driver support
Wire the shared Ameba GPIO driver into the RTL8721F (amebagreen2) build and
add the EVB board glue:

  - arch/arm/src/rtl8721f: build ameba_gpio.c (CMake/Make.defs), source the
    common Ameba Kconfig, and add ameba_gpio_chip.h describing the chip's
    three GPIO ports (A/B/C), their IRQs and the APBPeriph clock bit.
  - arch/arm/src/common/ameba: teach the driver that amebagreen2's ROM
    GPIO_Init does not call PAD_PullCtrl or GPIO_INTMode, so call both
    explicitly after GPIO_Init; on RTL8721Dx (ram_common) these are harmless
    redundant writes.  Add the AMEBA_PORT_C / AMEBA_PC() helpers.
  - boards/arm/rtl8721f/rtl8721f_evb: register output/input/interrupt demo
    pins, add the bringup hook, and provide a minimal 'gpio' NSH defconfig.
  - Documentation: add a GPIO section for the RTL8721F EVB and fix a
    rising/falling typo in the PKE8721DAF page.

Hardware-verified on the RTL8721F EVB: output, input, and all interrupt
trigger/polarity combinations (rising/falling edge, level high/low).

Signed-off-by: dechao_gong <dechao_gong@realsil.com.cn>
Assisted-by: Claude <noreply@anthropic.com>
2026-07-31 08:49:23 +02:00
..
arm arch/arm/rtl8721f: add GPIO character driver support 2026-07-31 08:49:23 +02:00
arm64 docs/boards/raspberrypi-4b: Document updated NXDoom config 2026-07-28 02:46:42 +08:00
avr arch/avr/src/avrdx/avrdx_delay: add custom up_udelay function 2026-06-12 09:55:11 -04:00
ceva Documentation: add missing platforms to platforms/ and remove introduction/platforms 2023-10-22 19:06:44 +08:00
hc docs/m9s12/demo9s12ne64: Migrate README.txt to RST 2026-02-12 10:43:53 +01:00
mips arch/mips/jz4780: Add USB host and display controller drivers 2026-07-24 12:17:35 +08:00
misco misco/lm32/boards/misoc: Migrate README.txt to RST 2025-05-08 03:04:04 +02:00
or1k docs/or1k: Migrate README.txt to RST format 2026-02-06 08:54:28 -03:00
renesas Documentation: PBKDF2 login docs, board Kconfig, and CI password 2026-07-21 20:19:14 +08:00
risc-v Docs/platforms/espressif: Add ULP app variables docs 2026-07-29 09:53:59 +08:00
sim arch/sim: Add PTY mode for simulated UART 2026-07-25 15:03:56 +08:00
sparc Documentation: migrate the rest boards 2023-10-26 18:13:34 -03:00
tricore arch/tricore: support tc4evb board. 2026-03-10 10:38:19 +01:00
x86 doc/qemu-i486: Add documentation about qemu-i486:vga_fb 2026-04-30 11:56:49 +08:00
x86_64 Documentation: add notes about TAP configuration for qemu 2025-12-18 11:39:54 -03:00
xtensa boards/stm32h7/linum-stm32h753bi: enable USB FS host, add lvglterm_kbda 2026-07-08 14:08:16 -04:00
z16 Documentation: update broken links 2024-04-10 15:17:53 -03:00
z80 style: Fix "the the" typo across the codebase. 2026-03-23 11:07:49 +01:00
index.rst docs: Fix duplicate toctree references causing build warnings 2026-06-03 15:02:22 +08:00