Arduino的FreeRtos相关问题，，求助
在FreeRtos中创建一个新任务TaskJsonRecive时，只要执行到JsonObject& root = jsonBuffer.parseObject(json);
就会使整个系统卡死，无反应，
求大神讲解
下面试该任务代码：
void TaskJsonRecive( void *pvParameters __attribute__((unused)) )// This is a Task.
{
for (;;)
{
// read the input on analog pin 0:
//int sensorValue = analogRead(A0);
// See if we can obtain or "Take" the Serial Semaphore.
// If the semaphore is not available, wait 5 ticks of the Scheduler to see if it becomes free.
if ( xSemaphoreTake( xSerialSemaphore, ( TickType_t ) 5 ) == pdTRUE )
{
// We were able to obtain or "Take" the semaphore and can now access the shared resource.
// We want to have the Serial Port for us alone, as it takes some time to print,
// so we don't want it getting stolen during the middle of a conversion.
// print out the value you read:
//Serial.println(sensorValue);
if (Serial.available() > 0) {
delay(200);
numdata = Serial.readBytes(json, 99);
StaticJsonBuffer<400> jsonBuffer;
JsonObject& root = jsonBuffer.parseObject(json);///逐步排查是这句代码有问题，，但不知道如何处理
if (!root.success()) {
Serial.println("parseObject() failed");
Serial.println("END");
return;
}
const char* sensor = root["sensor"];
const char* go = root["go"];
Serial.println(sensor);
Serial.println(go);
}
while (Serial.read() >= 0){
for (int i = 0; i < 99; i++) {
json = '\0';
}
}//清空串口缓存
xSemaphoreGive( xSerialSemaphore ); // Now free or "Give" the Serial Port for others.
}
vTaskDelay(67);// one tick delay (15ms) in between reads for stability
}
}
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