• 如何在MCUXpresso IDE中使用第三方封装函数库(How to use the foreign library in "MCUXpresso IDE")

    大家好!目前我有一个基于MCUXpresso IDE的LPC822M101的项目需要调用外来库文件(对方不披露源代码),但是发现调用过程中出现 undefined reference to `gt_24_data_B',然后网上搜索资料时发现只能找到自建lib.a的link方式(但这种方式下编写的一个简单return 程序竟然无法测量返回值(提示优化过度,但是我只做了1级优化)),对此实在盲目无策,不知道大家有没有遇到过同样的问题...
    志荣 陈
    last modified by 志荣 陈
  • Using the LPC54114 SPI API

    Had a question about the LPC54114 SPI API. I've been banging my head against the wall for close to two days on something that should seemingly be working. I am trying to read the UID code from a Microchip EEPROM, PN ...
    James Whitney
    last modified by James Whitney
  • LPC1769 doesn't communicate with Linux Ubuntu 18.04

    Hello,   We are using the usbd_lib_cdc_uart code in debug mode on the OM13085 board. We are trying to get it to communicate with a serial terminal program called screen.   The device works perfectly fine o...
    Neel Shah
    last modified by Neel Shah
  • secondary bootloader lpc54608

    Hi, i have the following problem with a secondary bootloader in LPC54608 custom board. It is very similar to evaluation kit OM13092. If i load the application program to the address 0x8000 with the JFlash program an...
    miguel ibarra
    last modified by miguel ibarra
  • Global constant in GNU AS

    I have an assembler program consisting of several partial programs. I know that labels have to be declared as "global" so that other partial programs can see them: label: LDR R0,[R1] can only be seen by the same pa...
    Ian Benton
    created by Ian Benton
  • a LPC54xx  main clock issue.

    what i did :  1.  i set the lpc54606 main_clk:48Mhz       2. I initialize a GPIO as output, then in main i did this:    so i got a clk . but  the frequency...
    yangyong wu
    last modified by yangyong wu
  • LPC1766 UART send garbled

    My code is below, when i run this code, I received the data like the picture. Anyone can tell me why? Receive baudrate is 9600. Use TTL-USB connect to my computer.  int main(void) { uint32_t i,j, k=0; Syst...
    ma teng
    last modified by ma teng
  • Programming Flash from which the program was booted, LPC43xx (LPC-Link2)

    Hi, I want to program Flash memory from the running program (the Flash is 1MB W25Q80BV on LPC-Link2, LPC4370 chip). I'm using SPIFI example from LPCOpen 3.02 for LPCXpresso. This example is currently located in direc...
    Dmitry Kuklin
    last modified by Dmitry Kuklin
  • How to merge a FatFS Project with a second project ?

    Hello, to All, With the help of Kerry Zhou I was able to get some SD Card code from a previous 'Community project going. This question is somewhat of a follow on. I have an application very similar to the 'periph_i2s...
    James Whitney
    last modified by James Whitney
  • How to put 12 MHz of IRC oscillator into PLL and make 30 MHz CPU operating clock?

    Hi. I am using LPC 824. How to put 12 MHz of IRC oscillator into PLL and make 30 MHz CPU operating clock? In MCUXpresso Config Tools, SYSPLL CLOCK = 24MHz seems to be able to Can I use 30 MHz with the IRC oscillator?...
    jun yamada
    last modified by jun yamada
  • Security Boot LPC1830

    Dears, I have a question about LPC1830 security boot, After reading the LPC1830 user manual and lpcscript user guide, the security boot will be:   Encrypt :        ...
    Ken Su
    last modified by Ken Su
  • LPC1343 I2C example from LPCOpen, how to use?

    Related to the issue I reported few days ago (I2C read/write with LPC1343 ), I'm now trying to run the i2c example code as-it-is   I imported the project in MCUXpresso from the LPCOpen archive for LPC1343, ...
    Dario Murgia
    last modified by Dario Murgia
  • Cannot use with 'key' argument in image_manager.exe

    Hi,   From the LpcScript user guide, it can use AES key to encrypt the iamge file. However, the --key argument is not supported with current image_manager.exe tool, I had check the 2.1.0_842 and 2.0....
    Ken Su
    last modified by Ken Su
  • CAN transmission using Non-blocking method?

    Hi community, I am trying to transmit CAN message using non-blocking method using MCAN_TransferSendNonBlocking(...) function. For that I have taken reference from example project "mcan_interrupt_transfer" provi...
    Manikanta G
    last modified by Manikanta G
  • Implementing IEEE 1588 on an LPC43XX

    I have a project using multiple LPC4333s, presently using a custom communications protocol to synchronise data samples and collect the sampled data across the devices. I am looking to change the communications protoco...
    Jonathan Smith
    last modified by Jonathan Smith
  • LPC11C24 Interrupt Logic

    Hi all, I'm developing some software for a PCB using the LPC11C24 board as MCU, and I have a doubt regarding the interrupt logic. As far as I know, I can define a WAKEUP_IRQHandler and a PIOINT0_IRQHandler, the forme...
    Federico Fiorini
    last modified by Federico Fiorini
  • Getting error in sample code of LPC845

    Hi all, I'm migrating from LPC2148 MCU to LPC845 MCU, and downloaded keil code bundles from NXP website, but when i'm compiling sample codes , getting error as below:   .\Objects\Ctimer_PWM.axf: error: L6002U:...
    vidhya@lipikatech.in
    last modified by vidhya@lipikatech.in
  • Correct COM parameters for LPC 'Periph_DMIC' example

    Greetings, I have built the 'periph_dmic' example from LPC_Open for the LPC54114. This example streams numerical data from the UART to a terminal, as opposed to the 'i2s_periph_dmic' example which streams audio data ...
    James Whitney
    last modified by James Whitney
  • Just out of the box experience

    Hi All,   Just getting familiar with the NXP LPC controllers. I am stuck with the following: LPC812: Failed on connect: Ee(36). Could not connect to core. LPC845: Failed on connect: Ee(42). Could not connect ...
    Peter Herijgers
    last modified by Peter Herijgers
  • need to implement RS485 Slave on lpc

    Hello,   I want to implement RS485 slave protocol on lpc1857 using UART3. Please inform if anyone has the code for the same.   I want listen for the command from Arduino as a RS485 master and want lpc1857 ...
    shruti patel
    last modified by shruti patel