stm32f030系列单片机 IAP在线升级，APP代码部分，主要是要对向量表操作，因为030是M0系列内核，与M3系列内核稍有不同。(Stm32f030 series microcontroller IAP online upgrade, APP code part, mainly to vector table operation, because 030 is the M0 series kernel, and M3 series kernel is slightly different.