一、可以使用的GPIO管脚
去掉占用调用的GPIO驱动,包括leds,buzzer,camera ov5640,WIFI mt6620 ,Keyboards
- VIDEO_OV5640– Device Drivers
- – Multimedia support(MEDIA_SUPPORT [=y])
- – Video capture adapters(VIDEO_CAPTURE_DRIVERS [=y])(去掉)
- MTK_COMBO_CHIP_MT6620– Device Drivers
- – MediaTek Connectivity Combo Chip Config
- – MediaTek Connectivity Combo Chip Support (MTK_COMBO [=y])(去掉)
- – Select Chip (<choice> [=y])
- Enable LEDS config– Device Drivers
- – Character devices
- – Enable LEDS config
- Enable BUZZER config
- – Device Drivers
- – Character devices
- – Enable BUZZER config
- Enable Keyboards
- Device Drivers --->
- Input device support --->
- Keyboards --->
static int led_gpios[] = { EXYNOS4_GPL2(0), EXYNOS4_GPK(1), /* Led IO 2个 */ EXYNOS4_GPD0(0), /* BUZZER IO 1个 */ EXYNOS4_GPX1(0), EXYNOS4_GPX1(3),EXYNOS4_GPX1(5),EXYNOS4_GPX1(6), /* 矩阵健盘8个 */ EXYNOS4_GPX3(0),EXYNOS4_GPX2(6),EXYNOS4_GPX2(7),EXYNOS4_GPX3(5), EXYNOS4212_GPJ1(3),EXYNOS4_GPL0(1),EXYNOS4_GPL0(3),EXYNOS4212_GPJ1(0), /* 摄像头14个 */ EXYNOS4212_GPJ1(2),EXYNOS4212_GPJ1(1),EXYNOS4212_GPJ0(7),EXYNOS4212_GPJ0(6), EXYNOS4212_GPJ0(5),EXYNOS4212_GPJ0(4),EXYNOS4212_GPJ0(0),EXYNOS4212_GPJ0(3), EXYNOS4212_GPJ0(1),EXYNOS4212_GPJ0(2), EXYNOS4_GPK3(6),EXYNOS4_GPK3(1),EXYNOS4_GPK3(4),EXYNOS4_GPK3(0), /* WIFI 7个 */ EXYNOS4_GPK3(3),EXYNOS4_GPK3(5),EXYNOS4_GPC1(1), };