NXP Semiconductors MCU LPC1500 Motor Control ARM Cortex-M3
Le MCU LPC1500 Motor Control ARM Cortex-M3 NXPsono ottimizzate per un controllo del motore veloce, facile e a elevata precisione per motori a corrente continua senza spazzole con o senza sensore (BLDC) e per motori sincroni a magnete permanente (PMSM). L'LPC1500 è ideale per grandi dispositivi di consumo, impianti ad aria condizionata, controllo di ascensori e scale mobili, controllo di pompe e generatori industriali. L'LPC1500 supporta due motori per mezzo di due ADC a 12 bit, 12 canali, 2 Msps e un'interfaccia di quadratura del trasduttore. Una precisa generazione del PWM consente un efficiente azionamento del motore. Gli avanzati sottosistemi analogici e di temporizzazione sono ideali per i loop di controllo dei PID. Il modulo CAN semplifica la connettività di tipo industriale e l'USB consente un agevole aggiornamento sul campo. È disponibile un firmware FOC gratuito per il controllo del motore e gli strumenti dotati di interfaccia grafica semplificano qualsiasi regolazione e calibrazione ripetitiva.
Each LPC1500 MCU is equipped with a PWM/timer subsystem that includes a total of four state-configurable timers (SCTimer/PWMs), a peripheral function exclusive to NXP that makes it easy to configure the advanced PWM and timing functions necessary for motion control. The on-chip QEI is ideal for applications that use sensored motion control.
LPC1500 MCUs feature two ADCs, each supporting a resolution of up to 12 bits and a fast conversion rate of up to 2 MHz. The ADCs are supported by a 12-bit DAC and four analog comparators. Sequences of A-to-D conversions can be triggered by multiple sources, including internal connections to other on-chip peripherals such as the SCTimer/PWM and analog comparator outputs. A temperature sensor completes this sophisticated analog subsystem.
The DMA controller, which has 18 channels and 20 programmable input triggers, services memory and peripheral resources.
Putting special functions in ROM helps improve time-to-market, reduce code size, and simplify development. Pre-loaded into the ROM are a boot loader, In-System Programming (ISP) and In-Application Programming (IAP) support for Flash (with an IAP erase command), and for EEPROM. There are ROM-based USB drivers and USB-compliant stacks for HID, CDC, and MS classes, as well as C_CAN drivers. Flash updates via USB and C_CAN are also supported. There are ROM-based drivers for USART, I2C, and DMA ROM-based power profiles configure power consumption, PLL settings, and power-saving modes.
To simplify the development of motion-control applications, the LPC1500 is equipped with “Quick Drive” firmware, which demonstrates sensored and sensorless motion-control functions. The firmware uses a fast Field Oriented Control (FOC) algorithm and a PI loop controller to maintain speed and torque, and minimize the code footprint.
Caratteristiche
- 72-MHz ARM Cortex-M3
- Operating voltage: 2.4V to 3.6V
- Up to 256kB Flash
- Up to 36kB SRAM
- 4kB EEPROM with EEPROM ROM drivers
- Serial interfaces: C_CAN controller, FS USB with PHY, three USART, one I2C, two SPI
- State-configurable timer and PWM block (SCTimer/PWM) for advanced control functions
- Two 12-bit ADCs, one 12-bit DAC, and four comparators
- 18-channel DMA engine
- Quadrature Encoder Interface (QEI)
- ROM API support
- Up to 78 GPIO
- Extended temp range of -40 to +105 °C
- Compact LQFP package
Applicazioni
- Motion drives
- Motor control
- Digital power supplies
- Solar inverters
- Home appliances
- Building and factory automation
- Industrial and medical
Video
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