-
Q恩智浦的技术支持如何,是否也有大量的可函数可供用户参考?
A 恩智浦以及我们的代理商会一起为客户提供完善的技术支持, 资料大部分已经译成中文,方便中国客户。 参考例程,可以通过www.lpcware.com获取,参考lpcopen,里边例程丰富,各个外设例程应有尽有。
-
Q请问该款控制器是否自身具有FOC和正弦波发生器功能?另外对于电机定位和测速有什么硬件支持?
A 这款控制器不带硬件的FOC和正弦波发生器功能, 在定位和测速上有QEI硬件接口和丰富的ADC资源, 谢谢
-
Q2个2M sps的ADC采样精度怎么样,能达到多少位的分辨率?有没有DMA功能?如果不使用外部参考电压,内部的参考电压稳定性怎么样?这颗芯片的功耗怎么样?
AADC是12位分辨率;有DMA功能;需要外部参考电压;功耗很低,最低在1uA左右;power-down模式在4uA左右
-
Q有引脚兼容的ARM7产品可以去替代吗?
A 目前LPC1500不能完全兼容ARM7的产品, 可以了解下NXP LPC1700系列, 此系列和ARM7的引脚有兼容, 谢谢
-
QST,microchip,TI,freescale,nuvoTon等等都有用到,NXP还没有真正使用过,如果能从PC1549 LPCXpress V2(OM13056 BLDC Motor Control Solution 入门使用是个不错的选择,期待使用NXP。
A谢谢支持!
-
Q1、请问2MSPS的ADC,如果全速采集的话LPC1500的存储空间和处理速率来得及吗? 2、请问ADC的分辨率是都少? 3、恩智浦是否有其他系列的微控制器,具有多路ADC(8路以上,分辨率12位,采样时间1us以下)、多路PWM功能(8路)、含USB接口、IOC口等功能?是否有选型手册?方便的话请发到:zhaobing@ectek.com.cn谢谢(问题答复能发到邮箱就更好了☺)。 4、我对电机控制比较感兴趣,请问LPC1500开发板提供相应的程序控制示例吗?电机是什么样的电机,伺服电机还是三相直流电机?有霍尔,无霍尔?
A1、来得及处理的,ADC配有DMA通道;2、12-bit 分辨率;3、可参考LPC7xx系列,选型手册可以在官方网站上下载;4、提供相应的例程;BLDC和PMSM,有感或无感的方案均有。
-
Q片上温度传感器监视系统温度以快速纠正过热条件。是需要我们自己编程序吗?片上监控过热条件都有什么?
A 带有硬件的过热保护功能, 通过MCU初始化配置可以实现(硬件触发保护), 如需要根据温度的变化,做调整, 那需要对应的程序去调节. 谢谢
-
Q看到AD和DA的参数以及片上温度监控功能,如对两台电机进行复杂控制,板上系统设计控制处理程序较多,控制板供电功耗参数如何?
A NXP的MCU在运行状态下的功耗是行业内数一数二的, 这个可以放心, 以下数据供你参考, 详细的功耗情况可查阅数据手册(datasheet), 谢谢 IDD supply current Active mode; code while(1){} executed from flash; system clock = 12 MHz; default mode; VDD = 3.3 V [3][4][5] [7][8] - 4.3 - mA system clock = 12 MHz; low-current mode; VDD = 3.3 V [3][4][5] [7][8] - 2.7 - mA system clock = 72 MHz; default mode; VDD = 3.3 V [3][4][7] [8][10] - 19.3 - mA system clock = 72 MHz; low-current mode; VDD = 3.3 V [3][4][7] [8][10] - 18 - mA
-
Q开发平台的兼容性很大,又有如此之多的外设且精度采样速率非同小可,是否留有足够INpin和OUTpin的端口(或者跳线口),以供当成开发板独立使用?
A 我们已经引出所有功能的IO口,板子可以作为独立的开发板使用,兼容Arduino和LPCXpresso两种模式。
-
Q希望不是PPT图片式的展示,而是有动态视频的功能演示,以此证明他的强大! 比如:通过 CAN 或 USB 总线可进行外部控制; PMSM电机控制解决方案演示了(FOC)有传感器和无传感器永磁电机的电机控制; BLDC电机控制解决方案演示了有传感器的BLDC电机上的经典梯形电机控制功能。
A有准备相应video,相信不久就会公布于众的。
-
Q板上是否提供直接接入的液晶屏和触摸屏端口?以便进行扩展功能设计延伸。
A板上无该接口
-
Q有几个问题咨询: 1,目前采用Cortex-M0核的ARM产品很多都能够满足FOC的电机控制算法了,咱们的LPC1500系列相比有什么最大的优势? 2,LPC1500最多可以同时控制几路BLDC电机?是否可以支持旋变编码器? 3,因为STM32的Cortex-M3核产品已经批量很多年了,而且在电机控制领域内也得到了很广泛的应用,同ARM核的LPC1500是新产品么?相对STM32在电机控制方面有什么独到的优势? 4,希望能够了解LPC1500为什么说是运动控制的绝佳选择? 非常期待,多谢!
A1、优势在于集成了几乎所需要的外设;2、同时控制4个BLDC;支持正交编码器;3、LPC1500是今年新推出来的芯片,在性能和价格上有自己的优势;4、在同类芯片中,其性能有独到的优势
-
Q请问开关矩阵是类似于silicon Labs的交叉开关吗?芯片内部有没有PCA模块?
A开关矩阵是为了方便把数字外设的管脚灵活分配到任意的IO;内部无PCA
-
Q请问开关矩阵是类似于silicon Labs的交叉开关吗?
A是类似的。
-
Q28PWM是两两互补的还是独立的 有没有死区时间控制单元? 需要外部晶振么?
A28PWM中, 分成多组的, 每组内的多路PWM是可以实现两辆互补的, 这个是带有死去控制单元的,而且可以非常灵活的去配置死区时间, 切带有故障输入保护功能. 带有内部的晶振, 可以根据应用需求去判断是否需要外部晶振. 谢谢
-
Q这款新片的可用内存有多大?
A最大可达36kB
-
Q请问有开发板吗?
A 有的, 可以和NXP的代理商去申请, 谢谢!
-
Q外设是不是跟M3基本相同
A 基本M3的外设,LPC1500都具有,我觉得具有状态可配置定时器,使其定时器和PWM方面更加灵活多变, ROM API也是一大特色,提供了囊括USB等外设的API函数,节约Flash空间的同时也大大提高的程序的稳定性和客户的开发周期。温宽提高到了105度,12bit 2M采样率的ADC也异常的强大。ADC和状态可配置定时器SCT的联动做的也很好。 System: ARM Cortex-M3 processor (version r2p1), running at frequencies of up to 72 MHz. ARM Cortex-M3 built-in Nested Vectored Interrupt Controller (NVIC). System tick timer. Serial Wire Debug (SWD) with four breakpoints and two watchpoints. Single-cycle multiplier supported. Memory Protection Unit (MPU) included. Memory: Up to 256 kB on-chip flash programming memory with 256 Byte page write and erase. Up to 36 kB SRAM. 4 kB EEPROM. ROM API support: Boot loader with boot options from flash or external source via USART, C_CAN, or USB USB drivers ADC drivers SPI drivers USART drivers I2C drivers Power profiles and power mode configuration with low-power mode configuration option DMA drivers C_CAN drivers Flash In-Application Programming (IAP) and In-System Programming (ISP). Digital peripherals: Simple DMA engine with 18 channels and 20 programmable input triggers. High-speed GPIO interface with up to 76 General-Purpose I/O (GPIO) pins with configurable pull-up/pull-down resistors, open-drain mode, input inverter, and programmable digital glitch filter. GPIO interrupt generation capability with boolean pattern-matching feature on eight external inputs. Two GPIO grouped port interrupts. Switch matrix for flexible configuration of each I/O pin function. CRC engine. Quadrature Encoder Interface (QEI). Configurable PWM/timer/motor control subsystem: Up to four 32-bit counter/timers or up to eight 16-bit counter/timers or combinations of 16-bit and 32-bit timers. Up to 28 match outputs and 22 configurable capture inputs with input multiplexer. Up to 28 PWM outputs total. Dither engine for improved average resolution of pulse edges. Four State Configurable Timers (SCTimers) for highly flexible, event-driven timing and PWM applications. SCT Input Pre-processor Unit (SCTIPU) for processing timer inputs and immediate handling of abort situations. Integrated with ADC threshold compare interrupts, temperature sensor, and analog comparator outputs for motor control feedback using analog signals. Special-application and simple timers: 24-bit, four-channel, multi-rate timer (MRT) for repetitive interrupt generation at up to four programmable, fixed rates. Repetitive interrupt timer for general purpose use. Windowed Watchdog timer (WWDT). High-resolution 32-bit Real-time clock (RTC) with selectable 1 s or 1 ms time resolution running in the always-on power domain. RTC can be used for wake-up from all low power modes including Deep power-down. Analog peripherals: Two 12-bit ADC with up to 12 input channels per ADC and with multiple internal and external trigger inputs and sample rates of up to 2 Msamples/s. Each ADC supports two independent conversion sequences. ADC conversion clock can be the system clock or an asynchronous clock derived from one of the three PLLs. One 12-bit DAC. Integrated temperature sensor and band gap internal reference voltage. Four comparators with external and internal voltage references (ACMP0 to 3). Comparator outputs are internally connected to the SCTimer/PWMs and ADCs and externally to pins. Each comparator output contains a programmable glitch filter. Serial interfaces: Three USART interfaces with DMA, RS-485 support, autobaud, and with synchronous mode and 32 kHz mode for wake-up from Deep-sleep and Power-down modes. The USARTs share a fractional baud-rate generator. Two SPI controllers. One I2 C-bus interface supporting fast mode and Fast-mode Plus with data rates of up to 1Mbit/s and with multiple address recognition and monitor mode. One C_CAN controller. One USB 2.0 full-speed device controller with on-chip PHY. Clock generation: 12 MHz internal RC oscillator trimmed to 1 % accuracy for 25 C Tamb +85 C that can optionally be used as a system clock. Crystal oscillator with an operating range of 1 MHz to 25 MHz. Watchdog oscillator with a frequency range of 503 kHz. 32 kHz low-power RTC oscillator with 32 kHz, 1 kHz, and 1 Hz outputs. System PLL allows CPU operation up to the maximum CPU rate without the need for a high-frequency crystal. May be run from the system oscillator or the internal RC oscillator. Two additional PLLs for generating the USB and SCTimer/PWM clocks. Clock output function with divider that can reflect the crystal oscillator, the main clock, the IRC, or the watchdog oscillator. Power control: Integrated PMU (Power Management Unit) to minimize power consumption. Reduced power modes: Sleep mode, Deep-sleep mode, Power-down mode, and Deep power-down mode. APIs provided for optimizing power consumption in active and sleep modes and for configuring Deep-sleep, Power-down, and Deep power-down modes. Wake-up from Deep-sleep and Power-down modes on activity on USB, USART, SPI, and I2C peripherals. Wake-up from Sleep, Deep-sleep, Power-down, and Deep power-down modes from the RTC alarm or wake-up interrupts. Timer-controlled self wake-up from Deep power-down mode using the RTC high-resolution/wake-up 1 kHz timer. Power-On Reset (POR). BrownOut Detect BOD). JTAG boundary scan modes supported. Unique device serial number for identification Single power supply 2.4 V to 3.6 V. Temperature range 40 °C to +105 °C. Available as LQFP100, LQFP64, and LQFP48 packages
-
Q有没有中文资料?
A 目前主要以英文资料为主, 中文资料会陆续补充, 谢谢
-
Q我还是个新手,LPC1500容易上手吗?
A 比较容易,我们提供详细的例程资料,具体可以上www.lpcware.com,谢谢!
- 1113召开 以48V电机驱动技术引领绿色创新
- 1030召开 交流/直流电源输入过流和过压保护选型指南