CSR8670 ADK3.5中自带的button（part1）实例运行无法检测button事件，求原因
小弟我安装ADK3.5后，运行目录下的apps\tutorials\buttons\part1实例，可以运行，但是检测不到button事件，各位高手帮忙看看，附上代码：/* Copyright Cambridge Silicon Radio Limited 2008-2014 *//* Part of BlueLab-6.5.2-Release */
/*
* Buttons Tutorial: Part 1 - PIO messages
*/
#include <pio.h>
#include <stdio.h>
#include <message.h>
#define BUTTON_A (1 << 0) /* PIO0 is BUTTON_A */
#define BUTTON_B (1 << 1) /* PIO1 is BUTTON_B */
#define BUTTON_C (1 << 2) /* PIO2 is BUTTON_C */
#define BUTTON_D (1 << 3) /* PIO3 is BUTTON_D */
typedef struct
{
TaskData task; /* task is required for messages to be delivered */
} appState;
appState app;
/* Function prototypes */
static void app_handler(Task task, MessageId id, Message message);
static void handle_pio(Task task, MessagePioChanged *pio);
int main(void)
{
/* Set app_handler() function to handle app's messages */
app.task.handler = app_handler;
/* Set app task to receive PIO messages */
MessagePioTask(&app.task);
/* Setup PIO interrupt messages */
PioDebounce32(BUTTON_A | BUTTON_B,/* PIO pins we are interested in */
2, 20); /* 2 reads and 20ms between them */
MessageLoop();
return 0;
}
static void app_handler(Task task, MessageId id, Message message)
{
switch (id)
{
case MESSAGE_PIO_CHANGED:
handle_pio(task, (MessagePioChanged*)message);
break;
default:
printf("Unhandled message 0x%x\n", id);
}
}
static void handle_pio(Task task, MessagePioChanged *pio)
{
if (pio->state & BUTTON_A) printf("Button A pressed\n");
if (pio->state & BUTTON_B) printf("Button B pressed\n");
}
/* End-of-File */
你的按键不是连接在PIO0,1,2,3上吧，你看一下你的电路图，把对应的pio改一下应该可以
#define BUTTON_A (1 << 0) /* PIO0 is BUTTON_A */
#define BUTTON_B (1 << 1) /* PIO1 is BUTTON_B */
#define BUTTON_C (1 << 2) /* PIO2 is BUTTON_C */
#define BUTTON_D (1 << 3) /* PIO3 is BUTTON_D */
就是这个
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