Transmitting variable to UART ?

[antonius]

Posted on February 12, 2016 at 06:02

Guys,

I want to transmit ''res'' into UART buffer :FRESULT f_open (     FIL* fp,            /* Pointer to the blank file object */     const TCHAR* path,    /* Pointer to the file name */     BYTE mode            /* Access mode and file open mode flags */ ) {     FRESULT res; I want to print ''res'' to UART buffervoid Transmit_String_ff(unsigned char *s) {   HAL_UART_Transmit(&huart1, s, strlen(s), 1000); // As a pointer, with a length } I can't do Transmit_String_ff(res) I got this error,error:  #167: argument of type ''FRESULT'' is incompatible with parameter of type ''unsigned char *'' How can I fix it ? thanks

[AvaTar]

Posted on February 12, 2016 at 07:08

The FatFS source file

ff.h

says:

typedef enum {

    .... } FRESULT; Thus, just cast it; enum is usually (but not necessarily)

int

:

  sprintf (buf, ''%d'',

(int)

fres); That is more or less basic C stuff.