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[FreeRTOS Home] [Live FreeRTOS Forum] [FAQ] [Archive Top] [November 2008 Threads] Lpc2106 Uart ProblemsPosted by Cminor Dimitris Ps on November 8, 2008 Hello Everyone, I'm new to this stuff and i'm experimenting with an Olimex Lpc2106 board using FreeRTOS. I have some problems with the Uart Driver though (the one included in demo application).
I have three tasks, the two of them blink 2 leds, and the third is used for sending a string to uart0 and receive something. I use Teraterm as terminal.
The problem is : When I receive ONE char, everything works well, and I can resend it to Uart :
xSerialGetChar( xPort, &jimR, comRX_BLOCK_TIME ); xSerialPutChar( xPort, jimR, comNO_BLOCK );
But, when I want to receive a string, using an array variable, if I send any char everything hangs. (Assume I send only 2 chars)
char *array; xSerialGetChar( xPort, &array[0], comRX_BLOCK_TIME ); xSerialGetChar( xPort, &array[1], comRX_BLOCK_TIME );
This does not happen if I use two different variables for my two chars :
xSerialGetChar( xPort, &jimR, comRX_BLOCK_TIME ); xSerialGetChar( xPort, &jimR2, comRX_BLOCK_TIME ); xSerialPutChar( xPort, jimR, comNO_BLOCK ); xSerialPutChar( xPort, jimR2, comNO_BLOCK );
Any thoughts..?
Regards, Dimitris
RE: Lpc2106 Uart ProblemsPosted by MEdwards on November 8, 2008 char *array -> This only defines a pointer to a character, not an array. You need char array[2].
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