z-stack UART cc2530

I just get in terminal a follow message ->   <0><0><0><0>

It is look like wrong speed, but i don't know  exactly

You use 115200 as baud rate in UART open. Do you set the same 115200 baud rate in the terminal?

yes of course

when I use this configure in Z-Stack 2.4.0 I have no problem - everything works fine (I redefined putchar of stdio.h and used DLIB in Project Options instead of CLIB)

but when I use Z-Stack Home Automation UART sent crashed messages. I use CLIB because when i choose DLIB there is some error of linking.  

What should i do? 

I've done it, you were right YiKai Chen about flowcontrol. I download another terminal and turned off flowcontrol , now it is works. Thank you very much!

following code works:

unsigned char str[]="Hello everybody";
halUARTCfg_t uartConfig;
uartConfig.configured = TRUE; // 2x30 don't care - see uart driver.
uartConfig.baudRate = HAL_UART_BR_115200;
uartConfig.flowControl = TRUE;
uartConfig.flowControlThreshold = 48; // 2x30 don't care - see uart driver.
uartConfig.rx.maxBufSize = 128; // 2x30 don't care - see uart driver.
uartConfig.tx.maxBufSize = 128; // 2x30 don't care - see uart driver.
uartConfig.idleTimeout = 6; // 2x30 don't care - see uart driver.
uartConfig.intEnable = TRUE; // 2x30 don't care - see uart driver.
uartConfig.callBackFunc = NULL;
HalUARTOpen (HAL_UART_PORT_1, &uartConfig);
HalUARTWrite(HAL_UART_PORT_1, str, 15);

preprocessor:

FEATURE_GREEN_POWER
SECURE=1
TC_LINKKEY_JOIN
NV_INIT
xNV_RESTORE
xHOLD_AUTO_START
ZTOOL_P2
MT_TASK
MT_APP_FUNC
MT_SYS_FUNC
MT_ZDO_FUNC
ZCL_READ
ZCL_WRITE
ZCL_REPORT
ZCL_EZMODE
ZCL_BASIC
ZCL_IDENTIFY
ZCL_ON_OFF
ZCL_SCENES
ZCL_GROUPS
xZCL_LEVEL_CTRL
HAL_LCD=FALSE
HAL_UART=TRUE

hal_board_cfg.h

/* Set to TRUE enable UART usage, FALSE disable it */
#ifndef HAL_UART
#if (defined ZAPP_P1) || (defined ZAPP_P2) || (defined ZTOOL_P1) || (defined ZTOOL_P2)
#define HAL_UART TRUE
#else
#define HAL_UART TRUE
#endif
#endif

I am having trouble with incorporating UART in Home Automation demo examples. I want to connect a separate microcontroller to a CC2530EM SoC via UART.

1. How can I add UART code in '........._event_loop', say in the 'zclSampleSw_event_loop()' in the SampleSwitch? Is it necessary to add the code in the event loop?

2. If not then how can I receive UART data in the CC2530SoC? How and where to incorporate the code other than the event loop?

Thanks in advance.

When you init UART by the following code, you should assign UART RX callback function to receive UART incoming characters.

HalUARTInit
 halUARTCfg_t uartConfig;
 uartConfig.configured = TRUE;
 uartConfig.baudRate = HAL_UART_BR_115200; //HAL_UART_BR_1M;
 uartConfig.flowControl = HAL_UART_FLOW_OFF;
 uartConfig.flowControlThreshold = 48;
 uartConfig.rx.maxBufSize = 128; //max if DMA gets enabled, don't think it is, but just in case
 uartConfig.tx.maxBufSize = 128;
 uartConfig.idleTimeout = 6;
 uartConfig.intEnable = TRUE;
 uartConfig.callBackFunc = UART RX callback;

HalUARTOpen (HAL_UART_PORT_1, &uartConfig);

Thanks a lot, Yikai Chen.I am sorry to bother you again. I far as I understand, the following event loop is the main loop that runs continuously. So from where do I modify and how to get the message? Will there be any SYS_EVENT_MSG which I would use in the event loop? If so, what is the header?  And how do I get the UART incoming message?

uint16 zclSampleSw_event_loop( uint8 task_id, uint16 events )
{
  afIncomingMSGPacket_t *MSGpkt;
  (void)task_id;  // Intentionally unreferenced parameter

  if ( events & SYS_EVENT_MSG )
  {
    while ( (MSGpkt = (afIncomingMSGPacket_t *)osal_msg_receive( zclSampleSw_TaskID )) )
    {
      switch ( MSGpkt->hdr.event )
      {
#ifdef ZCL_EZMODE
        case ZDO_CB_MSG:
          zclSampleSw_ProcessZDOMsgs( (zdoIncomingMsg_t *)MSGpkt );
          break;
#endif
        case ZCL_INCOMING_MSG:
          // Incoming ZCL Foundation command/response messages
          zclSampleSw_ProcessIncomingMsg( (zclIncomingMsg_t *)MSGpkt );
          break;

        case KEY_CHANGE:
          zclSampleSw_HandleKeys( ((keyChange_t *)MSGpkt)->state, ((keyChange_t *)MSGpkt)->keys );
          break;

        case ZDO_STATE_CHANGE:
          zclSampleSw_NwkState = (devStates_t)(MSGpkt->hdr.status);

          // now on the network
          if ( (zclSampleSw_NwkState == DEV_ZB_COORD) ||
               (zclSampleSw_NwkState == DEV_ROUTER)   ||
               (zclSampleSw_NwkState == DEV_END_DEVICE) )
          {
#ifndef HOLD_AUTO_START
            giSwScreenMode = SW_MAINMODE;
            zclSampleSw_LcdDisplayUpdate();
#endif
#ifdef ZCL_EZMODE
            zcl_EZModeAction( EZMODE_ACTION_NETWORK_STARTED, NULL );
#endif
          }
          break;

        default:
          break;
      }

      // Release the memory
      osal_msg_deallocate( (uint8 *)MSGpkt );
    }

    // return unprocessed events
    return (events ^ SYS_EVENT_MSG);
  }

  if ( events & SAMPLESW_IDENTIFY_TIMEOUT_EVT )
  {
    zclSampleSw_IdentifyTime = 10;
    zclSampleSw_ProcessIdentifyTimeChange();

    return ( events ^ SAMPLESW_IDENTIFY_TIMEOUT_EVT );
  }

  if ( events & SAMPLESW_MAIN_SCREEN_EVT )
  {
    giSwScreenMode = SW_MAINMODE;

    zclSampleSw_LcdDisplayUpdate();

#ifdef LCD_SUPPORTED
    HalLcdWriteString( (char *)sClearLine, HAL_LCD_LINE_2 );
#endif
    return ( events ^ SAMPLESW_MAIN_SCREEN_EVT );
  }

#ifdef ZCL_EZMODE
  if ( events & SAMPLESW_EZMODE_NEXTSTATE_EVT )
  {
    zcl_EZModeAction ( EZMODE_ACTION_PROCESS, NULL );   // going on to next state
    return ( events ^ SAMPLESW_EZMODE_NEXTSTATE_EVT );
  }

  if ( events & SAMPLESW_EZMODE_TIMEOUT_EVT )
  {
    zcl_EZModeAction ( EZMODE_ACTION_TIMED_OUT, NULL ); // EZ-Mode timed out
    return ( events ^ SAMPLESW_EZMODE_TIMEOUT_EVT );
  }
#endif // ZLC_EZMODE

  // Discard unknown events
  return 0;
}

Hi M,

1. You can put the UART init code in zcl_SampleSw_Init().

halUARTCfg_t uartConfig;
 uartConfig.configured = TRUE;
 uartConfig.baudRate = HAL_UART_BR_115200; //HAL_UART_BR_1M;
 uartConfig.flowControl = HAL_UART_FLOW_OFF;
 uartConfig.flowControlThreshold = 48;
 uartConfig.rx.maxBufSize = 128; //max if DMA gets enabled, don't think it is, but just in case
 uartConfig.tx.maxBufSize = 128;
 uartConfig.idleTimeout = 6;
 uartConfig.intEnable = TRUE;
 uartConfig.callBackFunc = UartProcessData;

HalUARTOpen (HAL_UART_PORT_1, &uartConfig);

2. Add the following UART RX callback function into your zcl_SampleSw.c to receive UART characters.

void UartProcessData ( uint8 port, uint8 event )
{
  uint8  ch;
  uint8  bytesInRxBuffer;
 
  while (Hal_UART_RxBufLen(port))
  {
    HalUARTRead (port, &ch, 1);
  }
}

Thanks again,YiKai Chen. In my setup, incoming data is not continuous. I need a method to read UART buffer only when there is incoming data in the serial port. That is like an interrupt. I am confused about one thing, whenever I call the 'UartProcessData(port, event)', won't it hang the program until there is an incoming message? And is 'uint8 event' the 'Task_id' of my End Point?

Or am I completely wrong about the whole thing?

Thanks a lot YiKai Chen. It's working now.

where s this function zclSampleSw_NwkState used ???

Hi dhileep,

It is a variable that show you device network state and you can search zclSampleSw_NwkState in zcl_samplesw.c to see how it works.

yes sir ... i checked the whole pgm but couldnt find it 

Hi dhileep,

Which examples are you testing?

sample switch in coordinator node 

sample light in sensor node

Hi Dhileep,

I have tried to answer you at http://e2e.ti.com/support/wireless_connectivity/f/158/p/380198/1342904.aspx#1342904

yes sir .... sorry for bothering you ... bt i didnt get the intended results yet sir 

hi Chen ，

     how can i use the uart to send out the Variable value to PC？? 

    i mean how to use the sending function。now i can use it to send string ，but i don't know howto send variable value

To output variable value, you can use sprintf function like the followings:

char str[8];

int a =100;

sprintf(str, "%d", a);

HalUARTWrite(HAL_UART_PORT_0,  str, 8);

I'm trying to do the same task but I'm having some trouble

I'm using the following code:

unsigned char my_str[] = "Pranav and Saswat";

HalUARTInit();
halUARTCfg_t config_uart;
config_uart.configured = TRUE;
config_uart.baudRate = HAL_UART_BR_115200;
config_uart.flowControl = TRUE;
config_uart.flowControlThreshold =48;
config_uart.rx.maxBufSize = 128;
config_uart.tx.maxBufSize = 128;
config_uart.idleTimeout = 6;
config_uart.intEnable = TRUE;
config_uart.callBackFunc = NULL;
HalUARTOpen (HAL_UART_PORT_0, &config_uart);
HalUARTWrite(HAL_UART_PORT_0, my_str, 17);

Instead of simply displaying the required string, the following output is obtained on hyperterminal:

"H€ZigBee Coord§þHPranav and Saswat"

Could you please help me remove the unwanted part?

Thanks,

Pranav Pal Lekhi