TIStellarisLM3S2000混合动力汽车电池充电器解决方案

ervation of power, the LM3S2B93 microcontroller features a battery-backed Hibernation module to efficiently power down the LM3S2B93 to a low-power state during extended periods of inactivity. With a power-up/power-down sequencer, a continuous time counter (RTC), a pair of match registers, an APB interface to the system bus, and dedicated non-volatile memory, the Hibernation module positions the LM3S2B93 microcontroller perfectly for battery applications.

In addition, the LM3S2B93 microcontroller offers the advantages of ARM’s widely available development tools, System-on-Chip (SoC) infrastructure IP applications, and a large user community.

Additionally, the microcontroller uses ARM’s Thumb®-compatible Thumb-2 instruction set to reduce memory requirements and, thereby, cost. Finally, the LM3S2B93 microcontroller is code-compatible to all members of the extensive Stellaris family; providing flexibility to fit our customers’ precise needs.

Texas Instruments offers a complete solution to get to market quickly, with evaluation and
development boards, white papers and application notes, an easy-to-use peripheral driver library, and a strong support, sales, and distributor network. See “Ordering and Contact Information” on page 1180 for ordering information for Stellaris family devices.

图2. LM3S2B93 MCU方框图

图3. LM3S2B93 MCU最基本连接电路图

其中各元件如下:

Pull-up resistors might also be needed on JTAG signals if these pins are not driven externally. VDD, VDDC and GND connections are shown as thick PCB traces for clarity. Normally these connections would be extended as copper pours.

• R1 Reset input pull-up resistor

• C1 Reset input filter capacitor

• C3 LDO regulator filter capacitor

• C2, C4-C6, C11 VDD Decoupling capacitors

• C7, C18 VDDC Decoupling capacitors

• C12-C17 Crystal load capacitors

• Y1 Ethernet Crystal

• Y2 Main Oscillator Crystal

• Y3 Hibernate Module Crystal

• R3 Ethernet RBIAS resistor

• R2 Hibernate Oscillator resistor

• R5 USB RBIAS

• R4 MDIO Pull-up resistor

Stellaris® LM3S9B96开发板

Stellaris® LM3S9B96 Development Kit

The Stellaris® LM3S9B96 Development Board provides a platform for developing systems around the advanced capabilities of the LM3S9B96 ARM® Cortex™-M3-based microcontroller.

The LM3S9B96 is a member of the Stellaris Tempest-class microcontroller family. Tempest-class devices include capabilities such as 80 MHz clock speeds, an External Peripheral Interface (EPI) and Audio I2S interfaces. In addition to new hardware to support these features, the DK-LM3S9B96 board includes a rich set of peripherals found on other Stellaris boards.

The development board includes an on-board in-circuit debug interface (ICDI) that supports both JTAG and SWD debugging. A standard ARM 20-pin debug header supports an array of debugging solutions.

The Stellaris® LM3S9B96 Development Kit accelerates development of Tempest-class microcontrollers. The kit also includes extensive example applications and complete source code.

Stellaris® LM3S9B96开发板主要特性:

The Stellaris® LM3S9B96 Development Board includes the following features.

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