1. UNIT 10
GPIO Test
로봇 SW 교육원
조용수

2. 학습 목표 GPIO Config GPIO Output Test GPIO Input Test

3. GPIO Config Target Board 에 맞게 GPIO 를 설정하는 단계 설정 포트 LED 4 : Output
Button Input 1 : Input

4. GPIO Examples CMSIS 라이브러리를 이용하여 Empty Project 구성 void PortInit() { }
int main()
PortInit();

5. GPIO Output Examples MPF Config void PortInit() {
// GPIO Port 2-1, 2-2, 2-3, 2-4 -> OUTPUT
// MPF Config
// SYS->P2_MFP // Default GPIO Mode }
int main()
PortInit();

6. GPIO Output Examples GPIO Out Config void PortInit() {
// GPIO Port 2-1, 2-2, 2-3, 2-4 -> OUTPUT
// MPF Config
// SYS->P2_MFP // Default GPIO Mode
// GPIO In/Out Control
P2->PMD &= ~((0x3 << 2) | (0x3 << 4) | (0x3 << 6) | (0x3 << 8) );
P2->PMD |= (0x1 << 2) | (0x1 << 4) | (0x1 << 6) | (0x1 << 8) ; }
int main()
PortInit();

7. GPIO Output Examples main void PortInit() {
// GPIO Port 2-1, 2-2, 2-3, 2-4 -> OUTPUT … }
int main()
PortInit();
P2->DOUT = 0xFF;

8. GPIO Output Examples main void PortInit() {
// GPIO Port 2-1, 2-2, 2-3, 2-4 -> OUTPUT … }
int main()
PortInit();
P2->DOUT = 0x00;

9. GPIO Input Examples GPIO Input Config void PortInit() { …
// GPIO Port 3-2 -> INPUT
// SYS->P3_MFP // Default GPIO Mode
P3->PMD &= ~(0x3 << 4); }
int main()
PortInit();
while(1) {
if(P3->PIN & 0x4) {
P2->DOUT = 0xFF;
} else {
P2->DOUT = 0x00;

10. GPIO Output Examples GPIO Input [00] -> Tri state void PortInit() {…
// GPIO Port 3-2 -> INPUT
// SYS->P3_MFP // Default GPIO Mode
P3->PMD &= ~(0x3 << 4); }
int main()
PortInit();
while(1) {
if(P3->PIN & 0x4) {
P2->DOUT = 0xFF;
} else {
P2->DOUT = 0x00;

11. GPIO Output Examples GPIO Input [00] -> Tri state void PortInit() {…
// GPIO Port 3-2 -> INPUT
// SYS->P3_MFP // Default GPIO Mode
//P3->PMD &= ~(0x3 << 4);
P3->PMD |= (0x3 << 4); }
int main()
PortInit();
while(1) {
if(P3->PIN & 0x4) {
P2->DOUT = 0xFF;
} else {
P2->DOUT = 0x00;

12. GPIO 를 이용한 게임 만들기 러시안 룰렛 게임 만들기 난수를 발생하여 저장
저장된 난수만큼의 버튼이 눌리는 경우 LED ON!
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include "M051Series.h"
void PortInit() {
// GPIO Port 2-1, 2-2, 2-3, 2-4 -> OUTPUT
// MPF Config
// SYS->P2_MFP // Default GPIO Mode
// GPIO In/Out Control
P2->PMD &= ~((0x3 << 2) | (0x3 << 4) | (0x3 << 6) | (0x3 << 8) );
P2->PMD |= (0x1 << 2) | (0x1 << 4) | (0x1 << 6) | (0x1 << 8) ;
// GPIO Port 3-2 -> INPUT
// SYS->P3_MFP // Default GPIO Mode
//P3->PMD = (P3->PMD & ~(0x3 << 6));
//P3->PMD |= (0x10 << 6);
//P3->PMD &= ~(0x3 << 4);
P3->PMD |= (0x3 << 4); }

13. GPIO 를 이용한 게임 만들기 int main() {
int result = rand() % 6; // 0~5 까지의 난수 발생
int isStart = -1;
int isContinue = -1;
//GPIO_SetMode(P3, BIT6, GPIO_PMD_INPUT);
PortInit();
while(1) {
if(isStart < 0) {
result = rand() % 6; }
if(P3->PIN & 0x4) {
if(isContinue > 0) {
isContinue = -1;
result --;
if(result <= 0) {
P2->DOUT = 0x00;
isStart = -1;
} else {
if(isContinue < 0 ) {
P2->DOUT = 0xFF;
isContinue = 1;
isStart = 1; // Start Game