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Software Application Development Can not be input to and output from UART1 to Terminal.
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Related

Can not be input to and output from UART1 to Terminal.

Former Member
Former Member over 10 years ago

Dear all.

I would like to input and output to 'TERATERM' in the following program.
I can input and output to the STDIO_Console of Xilinx SDK.
But it will not be input and output to UART1(MicroZed) => USB => PC(TERATERM).
Is there a mistake in the program?
---------------------------------------------------
/* ------------------------------------------------
   * | UART TYPE   BAUD RATE                        |
   * ------------------------------------------------
   *   ps7_uart    115200 (configured by bootrom/bsp)
   */

#include <stdio.h>
#include "xparameters.h"
#include "platform.h"
#include "xil_cache.h"
#include "xil_exception.h"

static int str2ui(char *str);

u32 nml_dt;

int main()
{

char buf[20], *bfp, lp;
u8 datb;
u16 datw;
u32 adb, adw, adi, dati, mofs;
int sts;

      init_platform();
      Xil_DCacheDisable();

lp = 1;

while (lp) {

MN_LP0:
printf("rZynq> "); // <=== Not output to Terminal.
bfp = &buf[0];
mofs = 0;
gets(bfp);          // <=== Not input to Terminal.
// printf("%s", bfp);
if((*bfp == 'M')||(*bfp == 'm')) { //"M" or "m"?
......

---------------------------------------------------
Regards,

-fuji3085

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  • Former Member
    0 Former Member over 10 years ago

    If UART0 has been enabled that will become the STDIO console. If you only have UART1 enabled then make sure that you have setup the Silicon Labs USB-UART driver on your host computer. You can follow an example in Tutorial 02 for the MicroZed found here: http://www.zedboard.org/support/design/1519/10

     

    There is also a setup guide for the USB to UART device here: http://www.zedboard.org/support/documentation/1519

     

    Even if you have set up the USB-UART driver it can be difficult to see the first time through. You may not be able to connect to TeraTerm until you have started your program and you may miss the first output. If this happens try running your program again with the TeraTerm terminal still connected.

     

    -Gary

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