销售点（POS）终端通过读取借记卡或信用卡上的信息 — 使用ISO/IEC 7816系列、ISO/IEC 14443非接触式和磁条读取等既定标准之一 — 然后连接到银行的服务器登记交易，从而实现安全的支付交易。
便携式ePOS终端需要无线连接 — 通常通过蓝牙低功耗（BLE）、Wi-Fi或蜂窝网络连接到基站或银行。
ePOS终端受EMVCo Level 1和2标准、支付卡行业 - 数据安全标准（PCI-DSS）、中国人民银行（PBOC）有关交易认证规定、以及联邦通信委员会（FCC）等部门法规的约束。
我们的非接触式卡交易解决方案以ST25R NFC读取器为核心，提供高灵敏度和天线适应性 — 这可以显著减少认证工作 — 以及蓝牙低能耗连接。此外，我们还提供电源管理解决方案，包括符合Qi标准的无线充电芯片组。
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Security has emerged as one of the 3 key areas that developers of embedded and IoT applications are thriving to improve. The STM32L5 microcontroller series is the solution and provide a new optimal balance between performance, power and security.
Rich by its features-set, STM32CubeMX is changing its skin today to provide to the developers an improved access to the Pinout, Peripherals and Middlewares parameters to ease the configuration and optimized the project development time. This new look is also standardizing the User Interface of the different Software Development Tools of the STM32Cube ecosystem.
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