Fujitsu SK-AMAPOLLO-BASE-V11 사용자 설명서 - 페이지 18

{카테고리_이름} Fujitsu SK-AMAPOLLO-BASE-V11에 대한 사용자 설명서을 온라인으로 검색하거나 PDF를 다운로드하세요. Fujitsu SK-AMAPOLLO-BASE-V11 46 페이지. Ambiq micro apollo 1 / 2 evaluation board

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2.6 RBG LED

The user RGB LED is connected as followed:

Figure 1-10: RGB LED at EVK-Apollo-Base

Start with the FEEU MCU Temlate for Apollo 1 or Apollo 2. Enable CTIMER FEEU Low-

Level-Driver for Apollo in RTE_Device.h (in example\source\config):

#define APOLLOCTIMER_ENABLED 1

#define APOLLOGPIO_ENABLED

Add apolloctimer.c to your project and include apolloctimer.h in you C-file. Following code

gives an example how to use a PWM to dim a LED:

#include "mcu.h"

#include "apollogctimer.h"

int main(void)

{

ApolloCTimer_PwmInitByGpio(PIN_GPIO42,TRUE);

ApolloCTimer_PwmInitByGpio(PIN_GPIO43,TRUE); //set GPIO43

ApolloCTimer_PwmInitByGpio(PIN_GPIO46,TRUE); //set GPIO46 to

PWM

ApolloCTimer_PwmSetDutyByGpio(42,0.5f); //set red LED to

while(1)

{

__NOP();

}

EEU-UG-2017120001-10

FEEU Ultra-Low-Power Apollo Evaluation Kit Platform

Chapter 2 Using the Hardware

- 18 -

//set GPIO42

//to PWM

//50% duty cycle