嗨,谢谢你的suggestions. After I removed the SPI FLASH and the Vbat3V supply of pull-up resistors, the current was 90ua, and after I removed the Vbat3V supply of SPI FLASH, lis3dh, bme280 and pull-up resistors, the current dropped to 1.5ua. I also did more tests, but I am not going to describing the tedious details. Now I have one question, how can I set the SDA and SCL line indeed high-impedance ? As far as I am concerned, the high current may caused by one of the following two sources: the i2c bus or lis3dh, but I can not figure it out now. So please be kind to help me push it forward, thanks.
好吧,我只是想确认,即使基于“增大化现实”技术e no pull-up resistors, the SCL and SDA levels as high as Vbat3V, is it true ? Because I have removed the pull-up resistors already.
嗨夏季,是160A的常数,平均还是峰值?是嘈杂还是干净......如果你在DA14580周围探测,你是否在任何GPIO等中看到任何活动?此外,10OHM可能有点高:你可以看看以下文件的第4.1节吗?
http://support.dialog-semicondiondiondum/system/files/resources/an-b-015 _...
BR JE_DIALOG.
嗨,160ua电流是恒定的,这是测量结果的偏移量。我之前已经读过了文档,但我仍然对高测量的电流混淆。也许我的董事会有问题?但我昨天整天仔细检查了原理图,不幸的是,不要进行任何进展。
在那里,你提到的是,HTE 160ua是一个偏移量:所以即使你完全断开电源也是如此是1.6mv的?我想知道您是否在测量电路上看到1.6mv的偏移/噪音。在10欧姆的房句上,看起来像160UA的内容只有1.6mV,可能是偏移/噪声。BR JE_DIALOG.
谢谢您的回复,但我衡量另一个董事会是中国一家公司的BLE产品,没有抵消电流。亚博全网
好的..没问题。我会向您发送一条消息,并拥有其中一个团队来看看这一点:我们需要您的原理图和您所看到的范围的范围。BR JE_DIALOG.
好的,我通过电子邮件发送给您,我很欣赏你的工作,谢谢。
似乎现在是caused by i2c interface, but I am sure I have set correct low power mode of the sensors attached to the i2c bus. What do you think about it ?
嗨夏天,
the I2C pull-up resistors (1K) connected to Vbat3 could be the source for your leakage current.
在睡眠时,SDA和SCL线是否确实高阻抗?
您是否能够单独测量DA14580设备的VBAT3V电流?
How much current are the SPI Flash devices drawing?
Is the buzzer really completely switched off when not used?
最好的问候,bb_dialog。
嗨,谢谢你的suggestions. After I removed the SPI FLASH and the Vbat3V supply of pull-up resistors, the current was 90ua, and after I removed the Vbat3V supply of SPI FLASH, lis3dh, bme280 and pull-up resistors, the current dropped to 1.5ua. I also did more tests, but I am not going to describing the tedious details. Now I have one question, how can I set the SDA and SCL line indeed high-impedance ? As far as I am concerned, the high current may caused by one of the following two sources: the i2c bus or lis3dh, but I can not figure it out now. So please be kind to help me push it forward, thanks.
嗨夏天,
当DA14580处于睡眠模式时,I2C线路应处于高阻抗状态,它们不会绘制电流。
最好的问候,bb_dialog。
但是当我测量SCL和SDA引脚的电压时,结果高达VBAT3V电平。更重要的是,据说DA14580将在睡眠模式下锁存PIN状态,并且I2C总线空闲高,因此我得到的结果可能是正确的。所以有什么我错了吗?
嗨夏天。
测量SCL和SDA水平高达VBAT3V时,表示上拉电阻的电流无电流。引脚很高。
我们看来都是好的。
我们认为您必须在其他设备中寻找电流泄漏。
最好的问候,bb_dialog。
好吧,我只是想确认,即使基于“增大化现实”技术e no pull-up resistors, the SCL and SDA levels as high as Vbat3V, is it true ? Because I have removed the pull-up resistors already.
嗨夏天,
是的,我们会期待那个。
在这个状态下,您可以介于1.5μA睡眠电流?
最好的问候,bb_dialog。
对我来说很奇怪。在未初始化I2C接口的情况下卸下上拉电阻和LIS3DH的VBAT3V电源后,电流约为13UA。但是,如果启用I2C接口,则当前电流高达100UA。
在我完全从电路板上删除LIS3DH后,似乎当前返回正常。所以我的问题在这里,当我使用LIS3DH时应该需要治疗什么?似乎在尽管有高电流之前,LIS3DH似乎很好地工作。
我用KX022更改了加速度计LIS3DH,现在电流低于10 uA。
嗨夏天,谢谢你让我们知道你修复了这个问题。我很惊讶LIS3DH不起作用,因为它非常受欢迎的产品,我们有多个客户使用DA14580 .KX022看起来像一个好的设备!BR JE_DIALOG.