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Mango-AM335x-ST LED Timer로 깜박이기

 

1.    커널 수정

 

arch/arm/mach-omap2/board-am335xevm.c 파일 수정

 

/* pinmux for led device */

static struct pinmux_config gpio_led_mux[] = {

        //CRZ_icanjji crazyboys 20160701

        {"emu0.gpio3_7", OMAP_MUX_MODE7 | AM33XX_PIN_INPUT},

        {"emu1.gpio3_8", OMAP_MUX_MODE7 | AM33XX_PIN_INPUT},

        {NULL, 0},

};

 

static struct gpio_led gpio_leds[] = {

//CRZ_icanjji crazyboys 20160701

        {

                .name                   = "am335x:EVM_SK:heartbeat",

                .gpio                   = GPIO_TO_PIN(3, 7),    /* D4 */

                .default_trigger        = "heartbeat",

        },

        {

                .name                   = "am335x:EVM_SK:heartbeat2",

                .gpio                   = GPIO_TO_PIN(3, 8),    /* D4 */

                .default_trigger        = "heartbeat",

        },

 

};

 

static struct evm_dev_cfg evm_sk_dev_cfg[] = {

        {mmc0_init,     DEV_ON_BASEBOARD, PROFILE_ALL},

        {uart1_init,            DEV_ON_BASEBOARD, PROFILE_ALL},

        {uart2_init,            DEV_ON_BASEBOARD, PROFILE_ALL},

{mfd_tscadc_init,       DEV_ON_BASEBOARD, PROFILE_ALL},

        {gpio_led_init,  DEV_ON_BASEBOARD, PROFILE_ALL},

        {button_keys_init,      DEV_ON_BASEBOARD, PROFILE_ALL},

        {evm_nand_init,         DEV_ON_BASEBOARD, PROFILE_ALL},

        {sgx_init,       DEV_ON_BASEBOARD, PROFILE_ALL},

        {mcasp1_init,   DEV_ON_BASEBOARD, (PROFILE_ALL)},//crazyboys 20151109

        {i2c1_init,     DEV_ON_BASEBOARD, PROFILE_ALL},//crazyboys 20151109

        {NULL, 0, 0},

};

 

 

커널 configuration

CONFIG_NEW_LEDS=y

CONFIG_LEDS_CLASS=y

CONFIG_LEDS_GPIO=y

CONFIG_LEDS_TRIGGER_TIMER=y

CONFIG_LEDS_TRIGGER_HEARTBEAT=y

CONFIG_LEDS_TRIGGERS=y

CONFIG_LEDS_TRIGGER_GPIO=y

 

 

 

2.    실행 결과

 

LED가 깜박이는 것을 볼수 있습니다.

https://www.youtube.com/watch?v=_vzuFnKfpQI



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이름 / 2014-11-20 / ★★★☆☆ [수정 / 삭제]

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