【应用】沁恒蓝牙MCU CH582用于带触摸按键的智能门锁等电子产品,支持BLE V5.3
沁恒WCH系列MCU绝大部分片上集成了触摸按键功能模块,其中CH58X系列蓝牙MCU不仅集成了沁恒最新一代触摸按键模块,内置2.4GHz RF收发器和基带及链路控制,支持BLE V5.3,并且有着出色的低功耗表现。这些性能使得CH58X系列蓝牙MCU成为带触摸按键的低功耗智能化电子产品最佳选择之一。
本文以CH582触摸按键评估板为例,讲述CH582如何实现低功耗触摸唤醒。下图为CH582触摸按键评估板通过蓝牙连接手机的示意图,该评估板引出四通道触摸焊盘、四颗LED灯珠、一个4位数码管和板载蓝牙天线。为了准确测量触摸按键的功耗,功耗测试中关闭蓝牙功能,并断开数码管,仅在检测到触摸时,亮起对应的LED灯珠。
实现方式如下,首先在蓝牙tmos中注册一个每隔0.5s唤醒执行一次的任务,在该任务中首先把触摸按键相关IO置浮空态,然后载入休眠前保存的设置,进行一次简易扫描,如果无疑似按键,则再次进入休眠等待下次唤醒,如果有疑似按键,对疑似按键接口进行正式扫描,根据扫描结果进行后续处理。该任务的流程图如下图。
在CH582触摸按键评估板上,未开启DCDC功能情况下实测得到0.5s简易扫描间隔情况下平均功耗约为33.7μA左右(未扫描到按键情况下),若开启片上DCDC功能之后,功耗可降至20μA以下(理论推算值),拉长扫描间隔功耗可降至更低。唤醒后每隔25ms进行一次正式扫描,此时平均功耗约为578μA。功耗测试如下图所示。
休眠简易扫描功耗
唤醒25ms间隔扫描功耗
主要使用触摸库函数如下表
- |
- +1 赞 0
- 收藏
- 评论 0
本文由犀牛先生转载自沁恒,原文标题为:支持休眠唤醒的低功耗触摸方案,本站所有转载文章系出于传递更多信息之目的,且明确注明来源,不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
相关推荐
沁恒的无线MCU可单芯片构建8kHz高回报率无线应用方案,用技术改写速度!
沁恒的无线MCU可单芯片构建各类高性能无线方案,助力客户轻松应对高端电子产品8k回报率的严苛性能要求。用技术改写速度,用专业打造极致。
【应用】沁恒MCU CH569用于U盘,内置双层DMA架构,接口模式采用通知优先方式
沁恒CH569 MCU配有EMMC卡控制器和USB3.0 OTG控制器及收发器,通过EMMC接口挂载SD/TF/EMMC卡后即可具备U盘设计的基本物理资源。系统得到供电5V,通过DC-DC转换为3.3V电压供应给CH569 MCU和存储卡。
【应用】基于沁恒微控制器CH582的BLE/2.4G/USB三模机械键盘方案,集成度高,功耗更低
沁恒微控制器CH582机械键盘方案和传统机械键盘方案对比,单芯片集成BLE、RF和USB模块,集成度高,功耗更低,集成多路PWM驱动接口,用于键盘背光控制,同时集成IIC/SPI接口,便于RGB拓展控制。
CH芯片的引脚图器件库和封装图
型号- CH366Q,CH378Q,CH451L,CH463Q,CH451S,CH32F205RBT6,CH452A,CH331A,CH246D,CH331G,CH343G,CH32F203C8T6,CH355L,CH573F,CH367L,CH440G,CH365P,CH450K,CH353L,CH462Q,CH571K,CH583M,CH32V208WBU6,CH341T,CH32V208RBT6,CH9350L,CH32V003J4M6,CH462X,CH32V305RBT6,CH342F,CH342K,CH221K,CH378L,CH9374B,CH340K,CH352L,CH376T,CH376S,CH340N,CH364P,CH582M,CH9102X-1,CH340T,CH9141K,CH340X,CH32V208GBU6,CH341B,CH341A,CH341F,CH571F,CH32V203C8T6,CH341C,CH450H,CH484M,CH351Q,CH,CH32V203G6U6,CH340E,CH582F,CH32F203C8U6,CH340C,CH32V203C8U6,CH340B,CH243K,CH340G,CH390H,CH334R,CH32V303VCT6,CH334Q,CH334P,CH552T,CH390L,CH334U,CH552P,CH334S,CH32V003A4M6,CH456G,CH335F,CH456K,CH32F203C6T6,CH359L,CH444G,CH456H,CH311L,CH541G,CH9328,CH563Q,CH9329,CH345T,CH454S,CH9326,CH343G(编带),CH334F,CH32F208RBT6,CH358L,CH334H,CH455H,CH455G,CH334G,CH32F203VCT6,CH32F208WBU6,CH552E,CH443K,CH552G,CH455K,CH540G,CH344Q,CH182H,CH182F,CH235S,CH236D,CH32V203C6T6,CH563L,CH442E,CH32V307VCT6,CH224K,CH551G,CH343P,CH181H,CH561Q,CH376T(编带装),CH452L,CH440R,CH9340K,CH9340C,CH247D,CH32F207VCT6,CH344L,CH368L,CH423S,CH32V303RCT6,CH382L,CH217X,CH32V103R8T6,CH370T,CH448F,CH32F203K8T6,CH412A,CH32V203F8U6,CH315G,CH412K,CH9143,CH557Q,CH32V203G8R6,CH9140,CH9142,CH9141,CH545L,CH543T,CH446Q,CH446X,CH9126,CH555Q,CH32F103R8T6,CH32F203RCT6,CH217K,CH568L,CH554T,CH457S,CH32V003F4P6,CH445P,CH9101Y,CH554P,CH32V303RBT6,CH9101N,CH9101R,CH9101U,CH9343G,CH579F,CH543D,CH9101H,CH32V307RCT6,CH32V203K8T6,CH334H(编带),CH9343L,CH555L,CH543K,CH9121,CH422G,CH543G,CH9120,CH32V203G8P6,CH410K,CH567L,CH32V307WCU6,CH579M,CH432Q,CH347T,CH9102X,CH444P,CH541T,CH9103,CH432T,CH541P,CH565W,CH421A,CH554E,CH9344L,CH578M,CH348L,CH554G,CH348Q,CH392F,CH227P,CH32V203F6P6,CH542G,CH9102F,CH32V203RBT6,CH483M,CH241K,CH32F203CBT6,CH32V103C8T6,CH374U,CH374T,CH374S,CH483X,CH549L,CH375C,CH549F,CH375B,CH549G,CH581F,CH9434A,CH32F103C8T6,CH559T,CH32V103C8U6,CH32V003F4U6,CH482X,CH397Y,CH548G,CH374F,CH592F,CH132F,CH548L,CH548N,CH132H,CH374G,CH32V208CBU6,CH384L,CH558T,CH32V303CBT6,CH32V305FBP6,CH547G,CH32V203K6T6,CH397A,CH547F,CH482D,CH397G,CH591D,CH397F,CH457VS,CH591F,CH438L,CH317L,CH559L,CH547L,CH438Q,CH569W,CH395L,CH424Q,CH395Q,CH412Z,CH449F,CH546G,CH372C,CH372B,CH558L,CH546L,CH481D
WCH-Link 使用说明
描述- WCH-Link是一款适用于沁恒RISC-V架构MCU和ARM内核MCU的在线调试和下载工具。它支持RISC-V和ARM两种模式,可通过MounRiver Studio、WCH-LinkUtility等软件进行模式切换和下载配置。WCH-Link具备串口、USB和3.3V/5V电源输出等功能,支持多种下载和调试工具,适用于不同类型的芯片和开发环境。
型号- WCH-LINKE,WCH-LINKW,WCH-LINK,WCH-DAPLINK
沁恒多层次以太网芯片一览:高效、稳定的数据传输能力,轻松应对各式联网需求
沁恒自研的接口技术打通了以太网的垂直层次,物理层收发器、控制器芯片、协议栈芯片、转接芯片和内置PHY的MCU久经市场考验。这些高品质、易于使用的产品,为嵌入式系统高效联网、快速拓展网络连接提供了便捷、灵活的解决方案。
CH585/CH584 数据手册
描述- 本资料详细介绍了CH585和CH584两款RISC-V MCU微控制器的技术规格和功能。CH585集成了蓝牙BLE、高速USB、NFC等无线通信功能,以及丰富的外设资源,如LCD驱动、LED点阵屏接口、SPI、串口、ADC等。CH584是CH585的简化版,去除了部分USB和SPI模块,RAM容量也相应减少。两款芯片均支持低功耗设计,适用于各种物联网和智能设备应用。
型号- CH585C,CH585M,CH584M,CH585,CH584,CH585F,CH584F
沁恒(WCH)MCU产品选型表
型号- CH32V303VCT6,CH552T,CH32F203CBT6,CH32V103C8T6,CH32V303RCT6,CH552P,CH32V103R8T6,CH32V103C6T6,CH577F,CH549L,CH32F205RBT6,CH549F,CH549G,CH32F203C6T6,CH581F,CH32F203C8T6,CH565M,CH557Q,CH573F,CH532,CH545L,CH531,CH32F103C8T6,CH563Q,CH32V103C8U6,CH559T,CH571K,CH32V208WBU6,CH583M,CH32V208RBT6,CH32F103R8T6,CH32F103C6T6,CH32F203RCT6,CH32V305RBT6,CH32F208RBT6,CH548G,CH32F203VCT6,CH32F208WBU6,CH552E,CH548L,CH568L,CH552G,CH548N,CH32V208CBU6,CH554T,CH32F103C8U6,CH558T,CH554P,CH32V303RBT6,CH582M,CH32V303CBT6,CH32V305FBP6,CH32V208GBU6,CH579F,CH547G,CH32V307RCT6,CH32V203K8T6,CH32V203K6T6,CH547F,CH571F,CH555L,CH32V203C8T6,CH32V203C6T6,CH563L,CH559L,CH32V307VCT6,CH547L,CH571D,CH32V307WCU6,CH567L,CH579M,CH551G,CH569W,CH522,CH561Q,CH525,CH527,CH573X,CH565W,CH578F,CH546G,CH554E,CH32V203G6U6,CH32F207VCT6,CH582F,CH578M,CH32F203C8U6,CH32V203C8U6,CH554G,CH32V203F6P6,CH558L,CH546L,CH521,CH32V203RBT6
CH573/CH571 数据手册
描述- 本资料详细介绍了CH573/CH571系列RISC-V MCU微控制器的技术规格和功能特性。该系列芯片集成蓝牙BLE无线通讯模块、USB控制器、多种外设接口,支持低功耗模式,适用于物联网、智能家居等领域。
型号- CH573Q,CH571K,CH573X,CH571F,CH571,CH571R,CH573,CH573F,CH571D
沁恒(WCH)通讯接口芯片和全栈MCU选型指南
描述- 南京沁恒微电子股份有限公司专注于连接技术和微处理器内核研究,是一家基于自研专业接口IP、微处理器内核IP构建芯片的集成电路设计企业。公司致力于为客户提供万物互联、上下互通的芯片及解决方案,主要产品包括USB/蓝牙/以太网接口芯片和连接型/互联型/无线型MCU,产品侧重于连接联网和控制。
型号- CH24X,CH233P,CH36X,CH32X035F8U6,CH32X035G8R6,CH32V103C6T6,CH32F205RBT6,CH370,CH372,CH251,CH343G,CH374,CH132,CH253,CH252,CH376,CH343K,CH375,CH254,CH32V006F8P6,CH378,CH377,CH440G,CH32X035,CH25X,CH32V208WBU6,CH583M,CH341T,CH32V003J4M6,CH32F103C6T6,CH233A,CH342F,CH382,CH32V006E8R6,CH384,CH342K,CH233K,CH37X,CH9374B,CH237,CH236,CH58X,CH32F103C8U6,CH340K,CH231K,CH22X,CH238,CH34X,CH340N,CH582M,CH340T,NET-SER-DT TTL,CH341B,CH341A,CH592,CH341F,CH591,CH231,CH486F,CH230,CH233,CH235,CH35X,CH32X035F7P6,CH368,CH484M,CH230K,CH23X,CH231A,CH32V203G6U6,CH340E,CH582F,CH482,CH481,CH340C,CH484,CH340B,CH483,CH365,CH486,CH364,CH340G,CH246,CH367,CH59X,CH4XX,CH366,CH578,CH334R,CH457,CH577,CH32V303VCT6,CH335,CH334Q,CH456,CH334P,CH338,CH579,CH32V,CH56X,CH334U,CH339,CH32X,CH564Q,CH334S,CH32V003A4M6,CH32X033F8P6,CH32F,CH335F,CH347F,CH32M,CH335J,CH32L,CH565M,CH451,CH571,CH450,CH444G,CH238P,CH453,CH573,CH452,CH334,CH455,CH454,CH347,CH226,CH57X,CH225,CH348,CH32X035G8U6,CH237D,CH9342G,CH334F,CH581,CH583,CH564L,CH334H,CH341,CH220,CH462,CH582,CH32F208WBU6,CH340,CH32X035R8T6,CH564F,CH343,CH342,CH221,CH463,CH334L,CH345,CH224,CH443K,CH344,CH223,CH344Q,CH555,CH557,CH315,CH318,CH54X,CH559,CH317,CH438,NET-485-9120,CH235S,CH32V002系列,CH32M007,CH236D,CH442E,CH552,CH551,CH554,CH432,CH567,CH343P,CH446,CH445,CH569,CH55X,CH448,CH568,CH440R,CH31X,CH449,CH440P,CH9340K,CH9340C,CH32F207VCT6,CH561,CH440,CH563,CH442,CH344L,CH565,CH323,CH444,CH564,CH443,CH412,CH64X,CH338X,CH52X,CH32V103R8T6,CH448F,CH32V203F8U6,CH9103M,CH32V203G8R6,CH532,CH531,CH545,CH423,CH547,CH546,CH446Q,CH53X,CH549,CH446X,CH548,CH32F103R8T6,BLE-DONGLE,CH338F,CH9104L,CH338L,CH541,CH543,CH422,CH32V003F4P6,CH9101Y,CH445P,CH9101N,CH9101R,CH9101U,CH9101H,CH32V307RCT6,CH347T,CH643,CH522,CH9102X,CH525,CH444P,CH645,CH524,CH527,CH528,CH565W,CH9344L,CH348L,BLE-SER-A-ANT,CH348Q,CH32V203F6P6,CH521,CH641,CH9102F,CH645W,CH32F203CBT6,CH32V006K8U6,CH32F207,CH32F205,CH32F203,CH32V003F4U6,CH32F208,CH645F,BLE2U-C-ANT,CH643U,CH643W,CH643Q,CH449X,CH32V303CBT6,CH32L103F8U6,CH32V305FBP6,CH569W,CH32F103,CH449F,CH32L103G8R6,CH643L,CH32X035系列,CH32F203C8T6,CH32V208RBT6,CH32V203系列,CH32V305RBT6,CH32V007系列,NET-232-9120,CH32V208GBU6,CH32L103F8P6,CH32V203C8T6,CH32V307,CH32V305,CH32F203C8U6,CH32V203C8U6,CH32V303,CH9160-DG-R0,BLE-TPT-A-ANT,CH32F203C6T6,BLE2U-A-ANT,CH9343,NET-TTL-9120,CH9328,CH9329,CH9326,CH9445,CH32L103C8T6,CH32F208RBT6,CH32F203VCT6,CH32V005F6U6,CH182H,CH182F,CH32V305GBU6,CH9434,CH32V203C6T6,CH32V307VCT6,CH181H,CH32L103系列,CH32V203F8P6,BLE-TPT-B-ANT,CH32V005D6U6,CH912X,CH32V303RCT6,CH32V005E6R6,CH32V003系列,CH32F203K8T6,NET-SER-DT RS232,CH9143,CH93XX,CH9140,CH9142,CH9141,CH9126,CH32V005F6P6,CH32F203RCT6,NET-SER-DT RS485,CH32L103,CH32V006,CH32V007,CH32V005,CH32V002,CH32V003,CH32X035C8T6,CH32V303RBT6,CH32V203K8T6,CH9121,CH9120,CH32V307WCU6,CH32V303系列,CH32F203RBT6,CH32V203RBT6,CH9350,CH483M,CH32V103C8T6,CH32V005系列,CH592X,CH483X,CH32M系列,CH230A,CH32V317,CH581F,CH32F103C8T6,CH32V103C8U6,CH482X,CH32L103K8U6,CH591R,CH32V208,CH182,CH592F,CH32V103系列,CH32V203,CH592D,CH32V208CBU6,CH914X,CH390,CH32V203K6T6,CH392,CH271,CH591D,CH482D,CH591F,CH275,CH395,CH397,CH38X,BLE232-NEP,CH32V006F8U6,CH32V103,CH39X,CH481D
沁恒低功耗蓝牙MCU选型表
沁恒提供Cortex-M3、Cortex-M0和RISC-V三种内核低功耗蓝牙选择,包括BLE4.2和BLE5.3。低功耗蓝牙MCU集成了低功耗蓝牙模块、全速USB主机、设备控制器和收发器、串口、以太网控制器和收发器、SPI等外设资源,并提供了GPIO、同步GPIO、ADC采集等功能。
产品型号
|
品类
|
内核
|
Freq(MHz)
|
Flash(KB)
|
SRAM(KB)
|
DataFlash(KB)
|
BLE
|
USB
|
Ethernet
|
TouchKey/ADC
|
LCD
|
Timer
|
PWM
|
UART/SPI/IIC
|
GPIO
|
VDD(V)
|
Package
|
CH592
|
低功耗蓝牙MCU
|
RISC-V
|
20MHz
|
448KB
|
26KB
|
32KB
|
5.4
|
1*H/1*D
|
-
|
12/12*12b
|
-
|
4*26b
|
12
|
4/1/1
|
24
|
1.7/3.3V
|
QFN32/QFN28
|
选型表 - 沁恒 立即选型
国民技术(Nations)蓝牙SoC选型表
目录- 超低功耗蓝牙芯片
型号- N32WB020,N32WB031,N32WB452REQ6,NZ8801,N32WB020GEQI,N32WB452LEQ6,N32WB031KCQ6-1,N32WB452CEQ6,N32WB452,N32WB031KEQ6-2
【产品】工作电压3.3V的SPI转四串口控制芯片CH9434,支持多种睡眠模式,SPI最高速率为16MHz
CH9434是沁恒推出的一款SPI转四串口控制芯片,提供四组全双工的9线异步串口,用于单片机/嵌入式系统扩展异步串口。CH9434包含四个兼容16C550的异步串口,最高支持4Mbps波特率通讯。
电子商城
服务
可定制显示屏的尺寸0.96”~15.6”,分辨率80*160~3840*2160,TN/IPS视角,支持RGB、MCU、SPI、MIPI、LVDS、HDMI接口,配套定制玻璃、背光、FPCA/PCBA。
最小起订量: 1000 提交需求>
提供语音芯片、MP3芯片、录音芯片、音频蓝牙芯片等IC定制,语音时长:40秒~3小时(外挂flash),可以外挂TF卡或U盘扩容。
最小起订量: 1pcs 提交需求>
登录 | 立即注册
提交评论