SensorController Stdio uartEmulator can not receive any data

Rugooo Zhang

Other Parts Discussed in Thread: CC2650

When I use Sensor Controller Stdio UART Emulator , I can not receive or Transfer any data, why?

First,I used the default example provided by SCS below:

Second, i found the UART Emulator only Provide the function uartEmulator(), and then generate Code and import it to my SimpleProfile Project in CCS,

Third,Init UART below:

scifOsalInit();
scifOsalRegisterCtrlReadyCallback(scCtrlReadyCallback);
scifOsalRegisterTaskAlertCallback(scTaskAlertCallback);
scifInit(&scifDriverSetup);

// Start the UART emulator
scifExecuteTasksOnceNbl(BV(SCIF_UART_EMULATOR_TASK_ID));

// Enable baud rate generation
scifUartSetBaudRate(57600);

// Enable RX (10 idle bit periods required before enabling start bit detection)
scifUartSetRxFifoThr(SCIF_UART_RX_FIFO_MAX_COUNT / 2);
scifUartSetRxTimeout(10 * 2);
scifUartSetRxEnableReqIdleCount(10 * 2);
scifUartRxEnable(1);

// Enable events (half full RX FIFO or 10 bit period timeout
scifUartSetEventMask(BV_SCIF_UART_ALERT_RX_FIFO_ABOVE_THR | BV_SCIF_UART_ALERT_RX_BYTE_TIMEOUT);

after that i still can not receive or transfer any data , is there anything i have to do before i can successful transfer or receive data.

over 9 years ago

0 Christin Lee over 9 years ago

TI__Guru 56605 points

how do you integrate the project into simpleprofile?

In the code you provided, I could not see any send/receive data related function is called...
ex:
scifUartTxPutChar;
scifUartRxGetChar;

All the driver functions are in scif.c

0 Rugooo Zhang over 9 years ago in reply to Christin Lee

Intellectual 380 points

scif_framework.c
scif_framework.h
scif_osal_tirtos.c
scif_osal_tirtos.h
scif.c
scif.h

I add these H and C files to my project driver list, and add a new task to process UART Emulator data .

in main loop , i do below:

while (1) {

// Wait for an ALERT callback
Semaphore_pend(Semaphore_handle(&semScTaskAlert), BIOS_WAIT_FOREVER);

// Clear the ALERT interrupt source
scifClearAlertIntSource();

// Echo all characters currently in the RX FIFO
int rxFifoCount = scifUartGetRxFifoCount();
while (rxFifoCount--) {
scifUartTxPutChar((char) scifUartRxGetChar());
}

// Clear the events that triggered this
scifUartClearEvents();

// Acknowledge the alert event
scifAckAlertEvents();
}

after do this, i still can not receive data. is anything i have missing.

0 Christin Lee over 9 years ago in reply to Rugooo Zhang

TI__Guru 56605 points

There are couple of thing you can try.
1. Try the stand alone project first
2. Call scifUartTxPutChar before your while loop
3.a if none of the above work, then trace your UART signal with logic analyzer.
3.b if both work, then there might be some conflict when you merge it together with BLE examples.

Please debug with the step listed above, and then we can take it from there.

0 Rugooo Zhang over 9 years ago in reply to Christin Lee

Intellectual 380 points

yes , i will step by step test the list you suggest .

but i have another doubt: when i use sensor controller stdio "task testing", there is still no data. i can not understand.

i will like you to determine the few things : when i use SCS UARTEmulator , i should not add any data in "Initialization Code " and "Termination Code ", just only run uartEmulator() function in Execution Code that i can successful use UART ?

0 Rugooo Zhang over 9 years ago in reply to Christin Lee

Intellectual 380 points

another thing i fogot

I use CC2650 Launchpad , BLE Stack 4.2 , and simple_peripheral example

in this example , is there anything confilct with SCS UART? Shoule be the Timer 0 ,because it has used for Baud rate??

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SensorController Stdio uartEmulator can not receive any data