I am "Learning" assembly, So I have tried to program my stm32f103 in assembly (a simple program to blink a led). The problem is that the program runs when uploaded using st-flash utility. But, If I press reset button, the program stops working.Here a...

I ​have stm32f103. I have tested serial test program that prints hello word continuously without any delay. But after that when I I try to upload new program or erase, I cannot succeed in it. Please help me, what will be the problem how to rectify.I ...