1
完善资料让更多小伙伴认识你,还能领取20积分哦, 立即完善>
一年多以前,TraveSmithPress发布了一个将RN861放入最低可能的电源模式休眠模式的程序,它只需要绘制1.7个UA。我终于成功地实现了这一点,但只有在意识到我认为不重要的最后一步的意义之后。由于我没有在最后设置RXJIN高,而不是绘制1.7uA,我的RN878绘制超过100UA。似乎RXYND通常在内部被拉到RN48 71。在我的申请中,我要么全权要么休眠,两者之间没有任何关系。所以我一直离开RXJIN低。但我认为RXIN内部的上拉必须是在我拉低电流的时候补充额外的电流。现在,当我在TraveSmith'步骤中遵循步骤6并设置RxJIN高时,在RN878的供电线路上的测量电流是1.5 UA。我进入休眠模式的程序是:1。发送“O,0 R”(“$$ $”是不需要的,因为我已经在命令模式。“0”是因为我不希望芯片对这个命令做出任何反应。2)。等待200毫秒。3。设置RXJIN高。当唤醒RN48的时候,我将BTYRead线脉冲发送到芯片并设置RXIN低,并进行通常的启动通信。
以上来自于百度翻译 以下为原文 Over a year ago, traversjames posted a procedure for putting the RN4871 into the lowest possible power mode - dormant mode - which is supposed to draw only 1.7 uA. I have finally succeeded in achieving that too, but only after realizing the significance of the last step that I didn't think was important. Instead of drawing 1.7uA, my RN4871 was drawing over 100uA because I didn't set RX_IND high at the end. It seems that RX_IND is normally pulled up internally to the RN4871. In my application I want either full power or dormant, nothing in-between. So I was leaving RX_IND low all the time. But I think the internal pull-up on RX_IND must be sourcing the extra current when I pull it low. Now when I follow step 6 in traversjames' steps and set RX_IND high, the measured current on the supply line to the RN4871 is 1.5 uA. My procedure for going into dormant mode is now: 1. Send "O,0r" (The "$$$" was not needed because I was already in command mode. The ",0" is because I don't want any response from the chip to this command.) 2. Wait 200 msec. 3. Set RX_IND high. When it is time to wake up the RN4871, I pulse the BT_Reset line to the chip and set RX_IND low and do the usual boot-up communication. |
|
相关推荐
1个回答
|
|
谢谢这个有趣的反馈。在错误的水平上的一个引脚可以产生HuGHE差异;
以上来自于百度翻译 以下为原文 Thanks for this interesting feedback. A single pin at the wrong level can make a hughe difference ;=) |
|
|
|
只有小组成员才能发言,加入小组>>
5238 浏览 9 评论
2028 浏览 8 评论
1950 浏览 10 评论
请问是否能把一个ADC值转换成两个字节用来设置PWM占空比?
3204 浏览 3 评论
请问电源和晶体值之间有什么关系吗?PIC在正常条件下运行4MHz需要多少电压?
2253 浏览 5 评论
778浏览 1评论
666浏览 1评论
有偿咨询,关于MPLAB X IPE烧录PIC32MX所遇到的问题
595浏览 1评论
PIC Kit3出现目标设备ID(00000000)与预期的设备ID(02c20000)不匹配。是什么原因
677浏览 0评论
576浏览 0评论
小黑屋| 手机版| Archiver| 德赢Vwin官网 ( 湘ICP备2023018690号 )
GMT+8, 2024-12-23 09:17 , Processed in 1.228275 second(s), Total 76, Slave 60 queries .
Powered by 德赢Vwin官网 网
© 2015 bbs.elecfans.com
关注我们的微信
下载发烧友APP
德赢Vwin官网 观察
版权所有 © 湖南华秋数字科技有限公司
德赢Vwin官网 (电路图) 湘公网安备 43011202000918 号 电信与信息服务业务经营许可证:合字B2-20210191 工商网监 湘ICP备2023018690号