when we connect SD card to PC, the PLLCLK will be set to 72MHZ
but when we quit this, OS has not change clock to the default value
so, the PCLK1 will be 36MHZ, reaching the maximum. peripherals that use PCLK1 as clock input should work, but maybe because of the crystal is not so accurate, or some other reasons, exceed the max clock range, peripherals fail.
well, maybe it is not a error, but anyway, it would be nice when you quit apps, all the sources go back to the default settings, so i suggest add the following code to the function
enum MENU_code Fct_Download_Handler( void )
Last edited by xuwa0800 (2010-12-29 14:25:18)