< div class = "字段field-name-taxonomy-forums field-type-taxonomy-term-reference field-label-above”> < div class = "字段标签" >论坛:,< / div > < div class = "字段条目" > < div class =”field-item甚至“rel = " sioc: has_container " > < a href = " /论坛/ dialog-smartbond-bluetooth-low-energy - % E2 % 80% 93 -软件”“=“sioc:容器sioc:论坛”属性= " rdfs: label skos: prefLabel”数据类型= " " >对话框Smartbond蓝牙低能量-软件< / > < / div > < / div > < / div > < div class =”字段field-name-body field-type-text-with-summary field-label-hidden”> < div class = "字段条目" > < div class =”field-item甚至“财产=“内容:编码”> < p >我用SPI通信控制器。我决定使用内部flash在启动时使用的相同SPI引脚，因为我认为它们被选为SPI是有原因的。我特别遗漏了CS引脚(P2_3)，以不干扰其启动，相反，我选择P2_1为CS显示控制器。SCK, SI, SO与内闪光相同。(P2_0, P2_4, P2_9) On power up我只给DA14586通电，不给显示控制器通电。我想用DA14586控制电源切换到电路的其余部分。我看到的问题是，如果我没有启动显示控制器，DA14586就不能启动。我有时甚至不能flash DA14586，它成功连接，但我一直得到SPI flash读取错误在Smartsnippet工具箱。如果我给显示控制器上电，一切似乎都运转正常。
Does this sound like the display controller in unpowered mode is affecting the GPIO used to interface to the SPI flash?
If this is a problem, I can move to using different GPIO for SPI to display controller. I just wanted to check with you to see if this is what could be happening on power up... and also so I don't make the same mistake in the future.
Thanks!