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Skip SD menu refresh if nothing has changed

pull/1/head
Brendan-csel 11 years ago
committed by Nicolas Rossi
parent
commit
d7f384f680
  1. 2
      Marlin/ultralcd.cpp

2
Marlin/ultralcd.cpp

@ -695,6 +695,8 @@ static void lcd_sd_updir()
void lcd_sdcard_menu()
{
if (lcdDrawUpdate == 0 && LCD_CLICKED == 0)
return; // nothing to do (so don't thrash the SD card)
uint16_t fileCnt = card.getnrfilenames();
START_MENU();
MENU_ITEM(back, MSG_MAIN, lcd_main_menu);

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