SECBOOT汾£
secboot_v3.13:
   1UART0/UART1secbootλͨſ
   2޸Ĺ̼ʱimageͷĴ߼ֹ̼ƻ

secboot_v3.14:
   1UART1secbootλͨſڡ
   2޸Ĺ̼ʱimageͷĴ߼ֹ̼ƻ

2M Flashĺ1MĲָ21 06 00 9f 6f 48 00 00 00