[原创] ST BlueNRG-2蓝牙低功耗(BLE)无线系统芯片开发方案

ST公司的BlueNRG-2是蓝牙标准兼容的非常低功耗蓝牙低功耗(BLE)单模式系统芯片(SoC),集成了256KB可编程闪存,24KB静态RAM存储器和SPI,UART,I2C标准通信接口,以及多功能计时器,RTC和DMA控制器,线性稳压器和DC/DC降压控制器,工作电压1.7V-3.6V,工作温度-40 °C到105 °C,主要用在手表,健美,健康和运动设备,消费类医疗设备,遥控,家庭和工业自动化,生活协助,手机外设,照明和PC外设.本文介绍了BlueNRG-2主要特性,架构图和总线架构图,时钟树和应用电路,以及BlueNRG-1/ BlueNRG-2开发板主要特性,电路图和材料清单.

The BlueNRG-2 is a very low power Bluetooth low energy (BLE) single-mode system-on-chip, compliant withBluetooth specifications.

The BlueNRG-2 extends the features of award-winning BlueNRG network processor, enabling the usage of theembedded Cortex M0 to run the user application code.

The BlueNRG-2 includes 256 kB of programming Flash memory, 24 kB of static RAM memory with retention (two12 kB banks) and SPI, UART, I²C standard communication interface peripherals. It also features multifunctiontimers, watchdog, RTC and DMA controller.

An ADC is available to interface with analog sensors, and to read the measurement of the integrated batteryvoltage sensor. A digital filter is available to process a PDM stream.

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