yabo国际娱乐Dialog半导体客户支持- PDM https://support.dialog-semiconductor.com/resource-keywords/pdm DA14585上的PDM https://support.dialog-semiconductor.com/forums/post/dialog-smartbond-bluetooth-low-energy-%E2%80%93-software/pdm-da14585 < 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 >我想生成一个PDM DA14585使用的信号SDK中的驱动程序。
我的程序挂起在boot_vectors中定义的SRCIN_Handler。只要我启用PDM驱动程序。

我是否在使用驱动程序时犯了错误,或者驱动程序不完整?在我看来,没有一个SRCIN、SRCOUT和PCM处理程序是实现的。< / p > < / div > < / div > < / div > < div class =”字段field-name-field-forum-keywords field-type-taxonomy-term-reference field-label-above”> < div class = "字段标签" >关键词:,< / div > < div class = "字段条目" > < div class =”field-item甚至“> < a href = " / resource-keywords / pdm”“=“skos:概念”属性=“rdfs: label skos: prefLabel”数据类型= " " > PDM < / > < / div > < / div > < / div > < div class =”字段field-name-field-device field-type-taxonomy-term-reference field-label-above”> < div class = "字段标签" >设备:,< / div > < div class = "字段条目" > < div class =”field-item甚至“> < a href = " /分类/ / 1491”一词typeof =“skos:概念”属性=“rdfs: label skos: prefLabel”数据类型= " " > DA14585 < / > < / div > < / div > < / div > 2017年5月16日星期二10:05:39 +0000 Eric Scammell 36115年https://support.dialog-semiconductor.com https://support.dialog-semiconductor.com/forums/post/dialog-smartbond-bluetooth-low-energy-%E2%80%93-software/pdm-da14585#comments 使用采样率转换器(SRC)实现低比特深度和低采样率音频 https://support.dialog-semiconductor.com/forums/post/dialog-smartbond-bluetooth-low-energy-%E2%80%93-hardware-device-reference-designs/using-sample < 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 -硬件-设备-引用-设计”“= " sioc:容器sioc:Forum" property="rdfs:label skos:prefLabel" datatype="">Dialog Smartbond Bluetooth Low Energy - Hardware (device &< div>

你好,
我想输出一个PDM流从低fidelity音频流,但是SRC和PDM外围设备是否支持这一点还不清楚。以下是我的申请细节:< / p > < p >音频文件细节:< br / > -存储在外部flash < br / > Mono < br / >位深度:8位< br / > -采样率:16赫兹< / p > < p > PDM输出要求:< br / > - (a) 128 x采样过量PDM在2.048 MHz PDM时钟或(b) 256 x采样过量PDM在4.096 MHz PDM时钟< br / > -立体声输出。一个通道应该是单声道音频文件,一个通道可以是任何值(它会被音频链中的下一个设备忽略)。

在数据表的SRC部分,列出了支持的转换为“SRC_IN(24位)到PDM_OUT(1位)”。此外,它列出了SRC_IN采样率从62.5 kHz到16 MHz。

SRC和PDM外设能否支持我的输入和输出需求?SRC输入能否将位深度降低到8位,采样率降低到16khz ?

Thank you for the help,
-Andy

Keywords: 
Device: 
2017年4月27日星期四12:16:09 +0000 andy.heidt 26472年https://support.dialog-semiconductor.com https://support.dialog-semiconductor.com/forums/post/dialog-smartbond-bluetooth-low-energy-%E2%80%93-hardware-device-reference-designs/using-sample#comments