I am trying to set up UART communication to my PC, in a new standalone project. I have written a function, myPrintf(), to direct strings to print to Putty. When I add this function to the BF707_char_echo project, it works fine. However, in my standalone project, after I successfully initiate the UART, when the program reaches the adi_uart_Write() inside of my function, I am given the following error:
A non-recoverable error or exception has occurred.
Description: A data CPLB miss has occurred without a corresponding CPLB entry.
General Type: RunTimeError
Specific Type: DCPLBMissWithoutReplacement
Error PC: 0x11a02366
In disassembly, I see:
1493 if((eResult = SubmitBuffer(pDevice,
11a02366: R1=[P1+0x38];
My UART initialization consists of the code inside the main function in UART_char_echo.c, up until but not including the UART processing loop. This sections runs fine. The issue only occurs when I try to print with my function (which internally calls adi_uart_Write(). My function is as follows.
void myPrintf(char* format,...){
char tempBuffer[1000];
char printBuffer[1000];
ADI_UART_RESULT result;
va_list args;
va_start(args, format);
uint32_t length;
length = snprintf(tempBuffer, 0, format, args);
length += 1;
vsnprintf(printBuffer, length, format, args);
va_end(args);
printf("About to write a string!\r\n");
if((result = adi_uart_Write(ghUART,
&printBuffer[0],
length
)) != ADI_UART_SUCCESS)
{
REPORT_ERROR("Could not do a write 0x%08X \n", result);
}
}
I would like some insight about what is happening. Please let me know if I can provide more information.
