LCD_DisplayStringLine help

Question

So I am trying to display a text file saved on a micro SD CARD on the touch screen. I have altered the example given by ST (FatFs example). One particular command in this example is this: printf("rc=%u FR_%s
", (UINT)rc, str); and so I altered it so as to be displayed on the LCD to: LCD_DisplayStringLine (Line2, "rc=%u FR_%s", (UINT)rc, str); However since the variable rc is not of type uint8, I am getting an error of: Error[Pe140]: too many arguments in function call. Is there another command that I can use or another solution? Thanks for all you help and support

Kilohercas · Accepted Answer

can you give LCD_StringLine() function prototype ? ( i don't use ST library, so i need to know before answering)

if you have u8 and you need string
use :
char buffer[512];

sprintf(buffer,"%d",u8);
and use buffer to print string on screen

Kilohercas · Answer

i guess char is same as u8.

So you need to print data to char.

I don't know what format is data, is it f32,u16,long? . So sprintf is needed

LCD_DisplayStringLine (Line2, str); (not 3 parameters, but two)