CCS/LAUNCHXL-CC1310: UART data inside mainThread can only write once to uart terminal per loop

yaniv maor

Intellectual 455 points

Part Number: LAUNCHXL-CC1310
Other Parts Discussed in Thread: CC1310

Tool/software: Code Composer Studio

hello ,

1. i'm tring to write two times to uart , some reasne it anly write once per loop !!

1.1 we using Version: 9.1.0.00010 all latest vertion

here is the code :

void *mainThread(void *arg0)
{

uint32_t curtime;
RF_Params rfParams;

UART_init();
ADC_init();
RF_Params_init(&rfParams);

.....

sprintf(str,"Send3 %d bytes O.k {%s} [%s] %d ADC0 %d\r\n",packetLength,&txPacket[2],&rxPacket[2],PacketCompare(&txPacket[2],&rxPacket[2],15), adcValue);
UART_write(uart,str,strlen(str)); // write to urt is o.k

sprintf(str,"execute done %d\r\n",);
UART_write(uart,str,strlen(str)); // does not write to uart ??

please advice

over 5 years ago

0 PM over 5 years ago

TI__Mastermind 27145 points

Hi,

I sent it to a concerned engineer. We will get back to you ASAP. Please bear with us.

Thanks,

0 Alexis Crandall20 over 5 years ago in reply to PM

TI__Genius 15590 points

Hi Yaniv,

With UART_MODE_BLOCKING (which is used by default), UART_write() blocks task execution until all the data in buffer has been written. Your second UART_write() is most likely being blocked by the first one, so you will need to account for this in your code or consider using UART_MODE_CALLBACK.

Thanks,

Alexis

0 Shai Berman over 5 years ago in reply to Alexis Crandall20

Mastermind 7400 points

Hi Yaniv,

About your question of using two UART (on CC1310).

Since there is only one physical UART for CC1310, you can use the sensor controller to emulate another UART.

You can download and install Sensor Controller Studio, There is a UART emulator example in it.

Hope that helps

Regards,

Shai

Sub-1 GHz

Sub-1 GHz forum

CCS/LAUNCHXL-CC1310: UART data inside mainThread can only write once to uart terminal per loop