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| MSP430F522x系列MCU蓝牙和音频源参考设计 |
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| 文章来源： 更新时间：2015/3/7 11:32:00 |
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TI公司的MSP430F522x和MSP430F521x系列是超低功耗混合信号MCU,包括了功能强大的16位RISC CPU,16位寄存器,具有最高代码效率的常数发生器,四个16位计时器,高性能10位ADC两个通用串行通信接口(USCI),硬件乘法器DMA比较器和带告警功能的RTC模块.主要用于模拟和数字传感器系统,通用应用以及数据采集.本文介绍了MSP430F522x 主要特性, MSP430F5229/27和MSP430F5219/17功能框图, 蓝牙和MSP430音频参考设计BT-MSPAUDSOURCE板主要特性,电路图和材料清单,PCB设计文件.
The Texas Instruments MSP430 family of ultra-low-power microcontrollers consists of several devices featuring different sets of peripherals targeted for various applications. The architecture, combined with extensive low-power modes, is optimized to achieve extended battery life in portable measurement applications. The device features a powerful 16-bit RISC CPU, 16-bit registers, and constant generators that contribute to maximum code efficiency. The digitally controlled oscillator (DCO) allows the device to wake up from low-power modes to active mode in 3.5 µs (typical).
The MSP430F522x series are microcontrollers with four 16-bit timers, a high-performance 10-bit ADC, two universal serial communication interfaces (USCIs), a hardware multiplier, DMA, a comparator, and an RTC module with alarm capabilities.
The MSP430F521x series include all of the peripherals of the MSP430F522x series with the exception of the ADC.
All devices have a split I/O supply system that allows for a seamless interface to other devices that have a nominal 1.8-V I/O interface without the need for external level translation.
Typical applications include analog and digital sensor systems, data loggers, and various general-purpose applications.
MSP430F522x 主要特性:
Dual Supply Voltage Device
Primary Supply (AVCC, DVCC):
Powered From External Supply: 3.6 V Down to 1.8 V
Up to 22 General-Purpose I/O With up to Four External Interrupts
Low-Voltage Interface Supply (DVIO):
Powered From Separate External Supply: 1.62 V to 1.98 V
Up to 31 General-Purpose I/O With up to 12 External Interrupts
Serial Communications
Ultra-Low Power Consumption
Active Mode (AM):
All System Clocks Active
290 µA/MHz at 8 MHz, 3.0 V, Flash Program Execution (Typical)
150 µA/MHz at 8 MHz, 3.0 V, RAM Program Execution (Typical)
Standby Mode (LPM3):
Real-Time Clock (RTC) With Crystal, Watchdog, and Supply Supervisor Operational, Full RAM Retention, Fast Wakeup:
1.9 µA at 2.2 V, 2.1 µA at 3.0 V (Typical)
Low-Power Oscillator (VLO), General-Purpose Counter, Watchdog, and Supply Supervisor Operational, Full RAM Retention, Fast Wakeup:
1.4 µA at 3.0 V (Typical)
Off Mode (LPM4):
Full RAM Retention, Supply Supervisor Operational, Fast Wakeup:
1.1 µA at 3.0 V (Typical)
Shutdown Mode (LPM4.5):
0.18 µA at 3.0 V (Typical)
Wakeup From Standby Mode in 3.5 µs (Typical)
16-Bit RISC Architecture, Extended Memory, up to 25-MHz System Clock
Flexible Power-Management System
Fully Integrated LDO With Programmable Regulated Core Supply Voltage
Supply Voltage Supervision, Monitoring, and Brownout
Unified Clock System
FLL Control Loop for Frequency Stabilization
Low-Power Low-Frequency Internal Clock Source (VLO)
Low-Frequency Trimmed Internal Reference Source (REFO)
32-kHz Watch Crystals (XT1)
High-Frequency Crystals up to 32 MHz (XT2)
16-Bit Timer TA0, Timer_A With Five Capture/Compare Registers
16-Bit Timer TA1, Timer_A With Three Capture/Compare Registers
16-Bit Timer TA2, Timer_A With Three Capture/Compare Registers
16-Bit Timer TB0, Timer_B With Seven Capture/Compare Shadow Registers
Two Universal Serial Communication Interfaces
USCI_A0 and USCI_A1 Each Support:
Enhanced UART With Automatic Baud Rate Detection
IrDA Encoder and Decoder
Synchronous SPI
USCI_B0 and USCI_B1 Each Support:
I2C
Synchronous SPI
10-Bit Analog-to-Digital Converter (ADC) With Internal Reference, Sample-and-Hold
Comparator
Hardware Multiplier Supports 32-Bit Operations
Serial Onboard Programming, No External Programming Voltage Needed
Three Channel Internal DMA
Basic Timer With RTC Feature
MSP430F522x应用:
• Analog and Digital Sensor Systems
• General-Purpose Applications
• Data Loggers
图1. MSP430F5229/27功能框图
图2. MSP430F5219/17功能框图
图3. MSP430F5214/12功能框图
蓝牙和MSP430音频参考设计
The Bluetooth and MSP430 Audio Source reference design can be used by customers to create a variety of applications for low-end, low-power audio source solutions for applications including toys, projectors, smart remotes and any audio streaming accessories. This reference design is a cost-effective audio implementation and with full design files provided allows you to focus your efforts on application and end product development. This reference design also provides the TI Bluetooth Stack.
This design is compliant with the following standards:
• FCC/IC Regulatory Compliance
• FCC Part 15 Class A Compliant
• IC ICES-003 Class A Compliant
This kit contains:
• One BT-MSPAUDSOURCE board
• One mini-USB cable
• One stereo audio cable with 3.5-mm plug connectors
蓝牙和MSP430音频参考设计主要特性:
Enables Bluetooth audio (SBC encode/decode) with low cost, low power MSP430F5229 Design offloads audio processing from MCU to the Bluetooth device which enables low power audio Cost-effective low end wireless audio solution with a four layer layout and QFN packages Core of the solution is TI’s SimpleLink™ CC2564 which offers best-in-class Bluetooth performance (+12dBm output power) leading to robust connection over long range CC256x and TI Bluetooth Stack both have Bluetooth Subsystem QDIDs allowing you to only need a Bluetooth End Product Listing This circuit design is tested and includes firmware, demo and wiki page for quick start guide.
图4.BT-MSPAUDSOURCE板外形图
图5.音频源线输入连接图
图6.BT-MSPAUDSOURCE板电路图(1)
图7.BT-MSPAUDSOURCE板电路图(2)
图8.BT-MSPAUDSOURCE板电路图(3)
图9.BT-MSPAUDSOURCE板电路图(4)
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