雷竞技电竞平台对话半导体客户支持- DA14585 xtal_trim https://support.dialog-semiconductor.com/resource-keywords/da14585-xtaltrimming xtal_trimming https://support.dialog-semiconductor.com/forums/post/dialog-smartbond-bluetooth-low-energy-%E2%80%93-software/xtaltrimming < 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 >亲爱的对话框中,< / p > < p >我们想要为我们做晶体修剪基于DA14585的原型,用于更精确的无线电频率。我们正在参考AN-B-020应用笔记,有几个问题

1)下载prod_test_585。十六进制进入系统RAM,我们可以使用SWD(通过pro开发工具包)代替应用程序说明中提到的UART吗?< br / > 2)以下是port0别针的分配我们的原型< br / > P0_0——界面的SPI flash时钟销< br / > P0_1——而不是连接不了< br / > P0_2——而不是连接不了< br / > P0_3 - SPI的flash芯片选择销< br / > P0_4——属下销和拿出10-pin连接器< br / > P0_5——界面的
P0_6 - interface to SPI flash data in pin
P0_7 - interface to FET gate to control power supply to SPI flash.
P0_7 - interface to FET gate to control power supply to SPI flash。还提供了测试点< br / >我的问题是,在考虑上述分配使用水晶晶体修剪频率输出到指定的GPIO端口是不可能的,因为只有一对UART拿出,冲突与输出的默认销的P0_5晶体频率。有什么办法我可以改变P0_5到P0_7(因为我有一个测试点探针)输出晶体频率?GPIO引脚的默认状态是什么?
3)如果我们想做XTAL微调使用无调制的方法,确切地说,我们需要探测。 I have attached the schematic of the RF section. Do I need to probe at the ends of the L2 inductor?
4) In the application note, it is mentioned that the calibrated trim value is then flashed into the OTP, so that when the device boots next time this value is set. Is there any way to set this trim value to SPI flash since we are not using the OTP.

Thanks & Regards,
sr9213

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2018年9月1日星期六05:22:23 +0000 sr9213 225844年https://support.dialog-semiconductor.com https://support.dialog-semiconductor.com/forums/post/dialog-smartbond-bluetooth-low-energy-%E2%80%93-software/xtaltrimming#comments