请教一下,如何使用两台CC1352P-2 Development Kit开发板,利用样本程序,想实现两台机器的连续无线通讯。
使用甲PC机输入一串字符到单片机,另一台单片机接受字符串后在乙PC机上显示。
单独无线通讯,和单独PC到芯片的通讯通过DEBUG已经试通,但PC到无线通讯再PC接收一直没有试通,想请教一下大家。
我PC到单片机通讯利用的是 uart2callback_CC1352P_2_LAUNCHXL_tirtos_ccs
单片机到单片机无线通讯利用的是 rfPacketRx_CC1352P_2_LAUNCHXL_tirtos_ccs
下面是我修改过的rfPacketRx_CC1352P_2_LAUNCHXL_tirtos_ccs
无线送信端我是用了rfListenBeforeTalk_CC1352P_2_LAUNCHXL_tirtos_ccs,改造成每秒发射一组30byte的固定数字。
现在问题是,在下面source 289行,终端中加中断点时,开启无线送信,接入DEBUG,
可以看到无线收信发生,收到数据也对,
然后继续运行在265行,将数据送到PC上。
但是,不加中断点时,直接运行,PC上看不到接收到的数据。
直接运行,运行中在289行加上中断点,程序也可以停下,然后运行到265行将数据送到PC上。
但这个操作几次之后,无线信号再也不能接受数据了,可能发生了溢出错误,这个也不知如何处理。
感觉运程设计可能有些问题,请指点一下。
/***** Includes *****/
/* Standard C Libraries */
#include <stdlib.h>
/* TI Drivers */
#include <ti/drivers/rf/RF.h>
#include <ti/drivers/PIN.h>
/* Driverlib Header files */
#include DeviceFamily_constructPath(driverlib/rf_prop_mailbox.h)
/* Board Header files */
#include "ti_drivers_config.h"
/* Application Header files */
#include "RFQueue.h"
#include <ti_radio_config.h>
#include <semaphore.h>
#include <ti/drivers/GPIO.h>
#include <ti/drivers/UART2.h>
#include <application.h>
/***** Defines *****/
/* Packet RX Configuration */
//#define DATA_ENTRY_HEADER_SIZE 8 /* Constant header size of a Generic Data Entry */
//#define MAX_LENGTH 30 /* Max length byte the radio will accept */
//#define NUM_DATA_ENTRIES 2 /* NOTE: Only two data entries supported at the moment */
//#define NUM_APPENDED_BYTES 2 /* The Data Entries data field will contain:
// * 1 Header byte (RF_cmdPropRx.rxConf.bIncludeHdr = 0x1)
// * Max 30 payload bytes
// * 1 status byte (RF_cmdPropRx.rxConf.bAppendStatus = 0x1) */
/***** Prototypes *****/
static void callback(RF_Handle h, RF_CmdHandle ch, RF_EventMask e);
/***** Variable declarations *****/
static RF_Object rfObject;
static RF_Handle rfHandle;
/* Pin driver handle */
static PIN_Handle ledPinHandle;
static PIN_State ledPinState;
/* Buffer which contains all Data Entries for receiving data.
* Pragmas are needed to make sure this buffer is 4 byte aligned (requirement from the RF Core) */
#if defined(__TI_COMPILER_VERSION__)
#pragma DATA_ALIGN (rxDataEntryBuffer, 4);
static uint8_t
rxDataEntryBuffer[RF_QUEUE_DATA_ENTRY_BUFFER_SIZE(NUM_DATA_ENTRIES,
MAX_LENGTH,
NUM_APPENDED_BYTES)];
#elif defined(__IAR_SYSTEMS_ICC__)
#pragma data_alignment = 4
static uint8_t
rxDataEntryBuffer[RF_QUEUE_DATA_ENTRY_BUFFER_SIZE(NUM_DATA_ENTRIES,
MAX_LENGTH,
NUM_APPENDED_BYTES)];
#elif defined(__GNUC__)
static uint8_t
rxDataEntryBuffer[RF_QUEUE_DATA_ENTRY_BUFFER_SIZE(NUM_DATA_ENTRIES,
MAX_LENGTH,
NUM_APPENDED_BYTES)]
__attribute__((aligned(4)));
#else
#error This compiler is not supported.
#endif
/* Receive dataQueue for RF Core to fill in data */
static dataQueue_t dataQueue;
static rfc_dataEntryGeneral_t* currentDataEntry;
static uint8_t packetLength;
static uint8_t* packetDataPointer;
static uint8_t packet[MAX_LENGTH + NUM_APPENDED_BYTES - 1]; /* The length byte is stored in a separate variable */
static uint8_t rfLength;
static sem_t semrf;
extern UART2_Handle uart;
extern void callbackFxn(UART2_Handle handle, void *buffer, size_t count,
void *userArg, int_fast16_t status);
/*
* Application LED pin configuration table:
* - All LEDs board LEDs are off.
*/
PIN_Config pinTable[] =
{
CONFIG_PIN_RLED | PIN_GPIO_OUTPUT_EN | PIN_GPIO_LOW | PIN_PUSHPULL | PIN_DRVSTR_MAX,
PIN_TERMINATE
};
/***** Function definitions *****/
void *rfThread(void *arg0)
{
RF_Params rfParams;
RF_Params_init(&rfParams);
UART2_Params uartParams;
int32_t semStatus;
uint32_t status = UART2_STATUS_SUCCESS;
int i;
/* Create semaphore */
semStatus = sem_init(&semrf, 0, 0);
/* Open LED pins */
/* ledPinHandle = PIN_open(&ledPinState, pinTable);
if (ledPinHandle == NULL)
{
while(1);
}
*/
/* Create a UART in CALLBACK read mode */
UART2_Params_init(&uartParams);
uartParams.readMode = UART2_Mode_CALLBACK;
uartParams.readCallback = callbackFxn;
uartParams.baudRate = 2000000;
uart = UART2_open(CONFIG_UART2_0, &uartParams);
if (uart == NULL) {
/* UART2_open() failed */
while (1);
}
/* Pass NULL for bytesWritten since it's not used in this example */
UART2_write(uart, echoPrompt, sizeof(echoPrompt), NULL);
for(i= 0;i<500;i++);
UART2_close(uart);
if( RFQueue_defineQueue(&dataQueue,
rxDataEntryBuffer,
sizeof(rxDataEntryBuffer),
NUM_DATA_ENTRIES,
MAX_LENGTH + NUM_APPENDED_BYTES))
{
/* Failed to allocate space for all data entries */
while(1);
}
/* Modify CMD_PROP_RX command for application needs */
/* Set the Data Entity queue for received data */
RF_cmdPropRx.pQueue = &dataQueue;
/* Discard ignored packets from Rx queue */
RF_cmdPropRx.rxConf.bAutoFlushIgnored = 1;
/* Discard packets with CRC error from Rx queue */
RF_cmdPropRx.rxConf.bAutoFlushCrcErr = 1;
/* Implement packet length filtering to avoid PROP_ERROR_RXBUF */
RF_cmdPropRx.maxPktLen = MAX_LENGTH;
RF_cmdPropRx.pktConf.bRepeatOk = 1;
RF_cmdPropRx.pktConf.bRepeatNok = 1;
/* Request access to the radio */
#if defined(DeviceFamily_CC26X0R2)
rfHandle = RF_open(&rfObject, &RF_prop, (RF_RadioSetup*)&RF_cmdPropRadioSetup, &rfParams);
#else
rfHandle = RF_open(&rfObject, &RF_prop, (RF_RadioSetup*)&RF_cmdPropRadioDivSetup, &rfParams);
#endif// DeviceFamily_CC26X0R2
/* Set the frequency */
RF_postCmd(rfHandle, (RF_Op*)&RF_cmdFs, RF_PriorityNormal, NULL, 0);
/* Enter RX mode and stay forever in RX */
RF_EventMask terminationReason = RF_runCmd(rfHandle, (RF_Op*)&RF_cmdPropRx,
RF_PriorityNormal, &callback,
RF_EventRxEntryDone);
switch(terminationReason)
{
case RF_EventLastCmdDone:
// A stand-alone radio operation command or the last radio
// operation command in a chain finished.
break;
case RF_EventCmdCancelled:
// Command cancelled before it was started; it can be caused
// by RF_cancelCmd() or RF_flushCmd().
break;
case RF_EventCmdAborted:
// Abrupt command termination caused by RF_cancelCmd() or
// RF_flushCmd().
break;
case RF_EventCmdStopped:
// Graceful command termination caused by RF_cancelCmd() or
// RF_flushCmd().
break;
default:
// Uncaught error event
while(1);
}
uint32_t cmdStatus = ((volatile RF_Op*)&RF_cmdPropRx)->status;
switch(cmdStatus)
{
case PROP_DONE_OK:
// Packet received with CRC OK
break;
case PROP_DONE_RXERR:
// Packet received with CRC error
break;
case PROP_DONE_RXTIMEOUT:
// Observed end trigger while in sync search
break;
case PROP_DONE_BREAK:
// Observed end trigger while receiving packet when the command is
// configured with endType set to 1
break;
case PROP_DONE_ENDED:
// Received packet after having observed the end trigger; if the
// command is configured with endType set to 0, the end trigger
// will not terminate an ongoing reception
break;
case PROP_DONE_STOPPED:
// received CMD_STOP after command started and, if sync found,
// packet is received
break;
case PROP_DONE_ABORT:
// Received CMD_ABORT after command started
break;
case PROP_ERROR_RXBUF:
// No RX buffer large enough for the received data available at
// the start of a packet
break;
case PROP_ERROR_RXFULL:
// Out of RX buffer space during reception in a partial read
break;
case PROP_ERROR_PAR:
// Observed illegal parameter
break;
case PROP_ERROR_NO_SETUP:
// Command sent without setting up the radio in a supported
// mode using CMD_PROP_RADIO_SETUP or CMD_RADIO_SETUP
break;
case PROP_ERROR_NO_FS:
// Command sent without the synthesizer being programmed
break;
case PROP_ERROR_RXOVF:
// RX overflow observed during operation
break;
default:
// Uncaught error event - these could come from the
// pool of states defined in rf_mailbox.h
while(1);
}
while(1){
sem_wait(&semrf);
// sem_post(&sem);
if(packetLength > 0) {
uart = UART2_open(CONFIG_UART2_0, &uartParams);
if (uart == NULL) {
/* UART2_open() failed */
while (1);
}
status = UART2_write(uart, packet, rfLength, NULL);
for(i= 0;i<500;i++);
UART2_close(uart);
}
}
}
void callback(RF_Handle h, RF_CmdHandle ch, RF_EventMask e)
{
if (e & RF_EventRxEntryDone)
{
/* Toggle pin to indicate RX */
PIN_setOutputValue(ledPinHandle, CONFIG_PIN_RLED,
!PIN_getOutputValue(CONFIG_PIN_RLED));
/* Get current unhandled data entry */
currentDataEntry = RFQueue_getDataEntry();
/* Handle the packet data, located at ¤tDataEntry->data:
* - Length is the first byte with the current configuration
* - Data starts from the second byte */
packetLength = *(uint8_t*)(¤tDataEntry->data);
packetDataPointer = (uint8_t*)(¤tDataEntry->data + 1);
/* Copy the payload + the status byte to the packet variable */
memcpy(packet, packetDataPointer, (packetLength + 1));
rfLength = packetLength + 1;
// RF_close(&rfObject);
sem_post(&semrf);
RFQueue_nextEntry();
}
}