C5515 Ezdsp UART communication.

Rupesh Mehta

Hi,

I wanted to use the uart for communicating with a camera.The test program CSL_UART_pollExample works fine.

The problem is the uart write function.It requires using a char array as data input.The camera works on hex command (56:00:26:00) which on converting to char (V:NULL:&:NULL)

On giving the above char command,the transmit buffer reads only V and considers NULL as a terminator.I did try both UART_puts and UART_write functions but the issue persists.

pl tell me if i am going wrong and do suggest an approach.

Thanks

over 14 years ago

0 Hyun Kim over 14 years ago

TI__Genius 14965 points

Hi,

You can modify UART_fputs function to fit your application.

Regards,

Hyun

0 Rupesh Mehta over 14 years ago in reply to Hyun Kim

Prodigy 40 points

Hey

Thanks , now i can send a null character after modifying the function

I had another issue with UART Receive function

I can only receive 16 bytes of information at a time using UART_read . I have modified the polled mode example.The example reads upto 99 characters from the hyperterminal ,but the data i am able to receive from a camera in response to a command is limited to 16 bytes.

If the number is greater than 16,it sort of hangs at UART_read command.

Regards,

Rupesh

0 Hyun Kim over 14 years ago in reply to Rupesh Mehta

TI__Genius 14965 points

Do you still have this issue?

Regards,

Hyun

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C5515 Ezdsp UART communication.