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| MSP430F522x系列MCU藍(lán)牙和音頻源參考設(shè)計(jì) |
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| 文章來源： 更新時(shí)間：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號MCU,包括了功能強(qiáng)大的16位RISC CPU,16位寄存器,具有最高代碼效率的常數(shù)發(fā)生器,四個(gè)16位計(jì)時(shí)器,高性能10位ADC兩個(gè)通用串行通信接口(USCI),硬件乘法器DMA比較器和帶告警功能的RTC模塊.主要用于模擬和數(shù)字傳感器系統(tǒng),通用應(yīng)用以及數(shù)據(jù)采集.本文介紹了MSP430F522x 主要特性, MSP430F5229/27和MSP430F5219/17功能框圖, 藍(lán)牙和MSP430音頻參考設(shè)計(jì)BT-MSPAUDSOURCE板主要特性,電路圖和材料清單,PCB設(shè)計(jì)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應(yīng)用:
• Analog and Digital Sensor Systems
• General-Purpose Applications
• Data Loggers
圖1. MSP430F5229/27功能框圖
圖2. MSP430F5219/17功能框圖
圖3. MSP430F5214/12功能框圖
藍(lán)牙和MSP430音頻參考設(shè)計(jì)
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
藍(lán)牙和MSP430音頻參考設(shè)計(jì)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.
圖4.BT-MSPAUDSOURCE板外形圖
圖5.音頻源線輸入連接圖
圖6.BT-MSPAUDSOURCE板電路圖(1)
圖7.BT-MSPAUDSOURCE板電路圖(2)
圖8.BT-MSPAUDSOURCE板電路圖(3)
圖9.BT-MSPAUDSOURCE板電路圖(4) |
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