capturepwmdisplay去掉pwm信号还是进回调callback

很高兴您能解决问题！

这个问题解决了，不过程序里有两个地方不是特别懂

程序里我设置的是捕获上升沿，当开始捕捉后，应该捕捉到一个上升沿就进一次capturecallback回调函数，然后semaphorep_post和while循环里的semaphorep_pend两个函数在这里具体是什么意思呢？是进一次中断，变量加1后就跳到while循环打印变量值？然后while循环里打印变量值后检测到上升沿再跳到capturecallback，如此往复吗？主要是两个semaphore_p函数的功能不太清楚。谢谢！

我现在要捕获脉冲上升沿，并计数无线发送到TCP server，主要程序段如下，之前试了在缓冲区放一组数可以发送成功，当把这段capture相关函数加进来，然后在capture的回调函数里发送就不行，TCP server接收不到数据。


void captureCallback(Capture_Handle handle, uint32_t count);
uint32_t curCount = 0;
static SemaphoreP_Handle captureSem;
int32_t sock;
int32_t status;
int32_t TCPClient()
{
SlSockAddr_t *sa;
int32_t addrSize;
sockAddr_t sAddr;

/* filling the TCP server socket address */
sAddr.in4.sin_family = SL_AF_INET;
sAddr.in4.sin_port = sl_Htons(6000);
sAddr.in4.sin_addr.s_addr = sl_Htonl(SL_IPV4_VAL(192,168,1,100));

sa = (SlSockAddr_t*)&sAddr.in4;
addrSize = sizeof(SlSockAddrIn_t);

/* Get socket descriptor - this would be the
* socket descriptor for the TCP session.
*/
sock = sl_Socket(SL_AF_INET, SL_SOCK_STREAM, TCP_PROTOCOL_FLAGS);
ASSERT_ON_ERROR(sock, SL_SOCKET_ERROR);

status = -1;

while(status < 0)
{
/* Calling 'sl_Connect' followed by server's
* 'sl_Accept' would start session with
* the TCP server. */
status = sl_Connect(sock, sa, addrSize);

if(status < 0)
{
UART_PRINT("[line:%d, error:%d] %s\n\r", __LINE__, status, SL_SOCKET_ERROR);
sl_Close(sock);
return -1;
}

break;
}

SemaphoreP_Params semParams;
Capture_Params captureParams;
Capture_Handle capture;

Capture_init();

UART_PRINT("Init succeed!\n\r");

/* Semaphore to wait for capture data */
SemaphoreP_Params_init(&semParams);
semParams.mode = SemaphoreP_Mode_BINARY;
captureSem = SemaphoreP_create(0, &semParams);

if (captureSem == NULL)
{
UART_PRINT("SemaphoreP_create failed!\n\r");
while(1);
}

/* Setting up the Capture driver to detect two rising edges and report
the result in microseconds
*/
Capture_Params_init(&captureParams);
captureParams.mode = CAPTURE_MODE_RISING_RISING;
captureParams.periodUnit = CAPTURE_PERIOD_COUNTS;
captureParams.callbackFxn = captureCallback;

capture = Capture_open(Board_CAPTURE1, &captureParams);
if (capture == NULL)
{
UART_PRINT("Failed to initialized Capture!\n");
while(1);
}

UART_PRINT("About to Capture!\n");

Capture_start(capture);


return 0;
}

void captureCallback(Capture_Handle handle, uint32_t count)
{
curCount += 1;
UART_PRINT("%d", curCount);
status = sl_Send(sock, &curCount, sizeof(curCount), 0);
SemaphoreP_post(captureSem);
}