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bit_ref [2018/09/22 08:41]
mangogeek [VDD_FLASH供电(适用BIT3)]
bit_ref [2019/03/10 22:27] (current)
Line 28: Line 28:
 <wrap hi>​BIT4,​BIT5的VDD_FLASH引脚无需用户处理</​wrap>​ <wrap hi>​BIT4,​BIT5的VDD_FLASH引脚无需用户处理</​wrap>​
 ^ FLASH容量<​ =16MB ^ FLASH>​=32MB,且4B地址模式 ^ FLASH>​=32MB,且3B地址模式(该模式已经逐渐淘汰) ^ ^ FLASH容量<​ =16MB ^ FLASH>​=32MB,且4B地址模式 ^ FLASH>​=32MB,且3B地址模式(该模式已经逐渐淘汰) ^
-| 3.3V电源经过低Vf二极管到VDD_FLASH,例如RB520S30 \\ {{ ::​flashvdddiode.png?​300 |}} | 3.3V电源经过低Vf二极管到VDD_FLASH,例如RB520S30 \\ {{ ::​flashvdddiode.png?​300 |}} \\ CS1通过1K电阻拉高到3.3V电平 | 通过CPURST_N信号和MOS、三极管组成FLASH断电电路 \\ {{ ::​flashvdd.png?​300 |}} |+| 3.3V电源经过低Vf二极管到VDD_FLASH,例如RB520S30 \\ {{ ::​flashvdddiode.png?​300 |}} | 3.3V电源经过低Vf二极管到VDD_FLASH,例如RB520S30 \\ {{ ::​flashvdddiode.png?​300 |}} \\ <wrap hi>CS1通过1K电阻拉高到3.3V电平</​wrap> ​| 通过CPURST_N信号和MOS、三极管组成FLASH断电电路 \\ {{ ::​flashvdd.png?​300 |}} |
  
  
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