(To_bsl)0x00202000;
if (watchdogHandle != NULL)
Watchdog_close(watchdogHandle);
MAP_Interrupt_disableMaster();
NVIC->ICER[0] = 0xFFFF;
NVIC->ICPR[0] = 0xFFFF;
NVIC->ICER[1] = 0xFFFF;
NVIC->ICPR[1] = 0xFFFF;
To_bsl(0xFC48FFFF);
bsl使用的是官方432p4014bsl源码