Questions tagged [nxp]

NXP is a manufacturer of semiconductors, both ICs and discrete components.

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Issue with XIP on NXP MIMXRT1015

I am working on the board bring up for a board using the NXP MIMXRT1015 crossover MCU. The design is pretty much a copy of the respective EVK including the same QSPI flash chip. Software Observations: ...
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Effect(s) of reset/power glitch/brownout on SAMD20/KL17Z Flash erase/write?

EDIT: I've shortened the initial post since there were too many irrelevant details. We're using PCBs with an Atmel ATSAMD20E17 and an NXP MKL17Z128VFM4 (heterogeneous redundancy). A system cosists of [...
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How to flash memory when there is no sector information?

Currently, I am trying to flash WCT1013A. As I see in the datasheet there is no sector information. If I do not know about the sector information how am I going to flash the memory?
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How to interpret internal_ram data section in NXP

In .lcf (linker configuration file) in my project, in SRAM memory there is an internal_ram section: And in my case this ...
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Can PN7150 NFC controller deactivate RF Interface?

I have used the PN7150 NFC chip from NXP in autonomous polling mode with LPCD disabled. I can detect NFC Tag and can see NFC coil signals are changing as the NFC tag is detected. PN7150 VDDTx current ...
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LPC1788 multichannel ADC DMA

I have problem with reading LPC1788 ADC pins in multichannel with DMA. Here is the procedure I have followed. I use Keil, initialized UART 0 peripheral, have set all of the ADC pins to be analog, set ...
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PCIe switch vs PCIe mux and Demux

In my project my customers wanted a 2 port 2 lane PCIe switch and The switch is occupying more space than I can allocate on the board, Before I can ask my customers to get approval on using an ...
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CAN Transceiver circuit problem with TJA1042T/3

I am a novice designer who recently started designing circuits. Using the STM32f407VGT MCU operating at 3.3V, using the CAN1TX(PB9) CAN1RX(PB8) pins, the circuit was configured by referring to NXP's ...
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is it OK to replace higher ampere TRIAC for a washing machine?

I have a 6 year old top load washing machine which requires a TRIAC replacement for wash motor. The actual TRIAC that came with factory PCB board is NXP BT138X-800 and the one I am looking to replace ...
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NXP KEAZ64 microcontroller fault on power on (harsh/sharp switch on)

I have a problem with a design that uses 2 S9KEAZN64AMLC microcontrollers. I have encountered an issue, where it seems that if the device is turned on with a switch i.e. with a very fast rise time on ...
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Stepping over a library (in-built) function in CodeWarrior

I am using CodeWarrior Development Studio to program and debug the NXP FXTH870911. To understand the functionalities, I downloaded an example project from their website. It is called ...
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How to simulate LVT BiCMOS PSpice models?

I'd like to simulate the digital 74LVTxx chips with their analog characteristics. Packages like Multisim and OrCad only have the basic models (e.g. 74LS04N). ...
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LM567 (NE567) tone decoder lower input AC voltage bound and DC level

I've been trying to figure out the lower input bound for the LM567/NE567 tone decoder. Supposing the pin 7 is connected to ground, is the minimum input voltage 0V or can it go negative? In the ...
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Can the FlexIO module in NXP be used as I2C?

I have this S32K142 microcontroller. Unfortunately, it has only one I2C interface which I have already used. I require another I2C interface for a different light sensor application - light sensor. I ...
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Do SDIO bus speeds need to match between two devices?

I have two devices that I'd like to use together, connected via their SDIO pins. The MCU can transfer data up to 200 MB/s with a 200 MHz clock speed (HS-200). The wireless module that I want to use ...
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Has anyone used NXP's PF3000 PMIC?

I am not able to program the PF3000 IC. I have customized the voltages, when I program and put the IC in my other product, I am not able to get the programmed voltages. I followed the video shown. But ...
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MMA8452 high quiescent current consumption

I have designed a PCB where I am using the MMA8452Q accelerometer. Because it is a battery powered device, we want to ensure that we are using the lowest sleep current states of all the components on ...
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Low Power SPI Module communication between Microcontrollers

I have 2 microcontrollers - one is S32K118 and other is S32K142. Both are 64 pins. S32K1xx datasheet I need communication between the Microcontrollers in SPI Configuration. Suppose the microcontroller ...
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ISELED Driver Communication protocol

This is my ISELED Driver Datasheet INLC10AQ & my Microcontroller datasheet S32K142 - 64 pin Microcontroller I have a NXP Microcontroller connected to the above LED Driver. I need to figure of the ...
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BigTreeTech SKR 1.3 (LPC1768), mbed examples not working

I have a Chinese LPC1768-based board I used to control with Marlin firmware, and recently I started to want to program it my own way instead. So, I was successful with PlatformIO and Marlin's custom ...
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Is an even number of DRAM chips required?

I want to design a microprocessor based board (NXP imx 8m). All the boards I've seen so far have an even number of DRAM chips. If I want 4GB of RAM, do I have to use two 2GB DRAM chips or can I use ...
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Applied 370degC at the input of an ADC in a Microcontroller

I am using this Microcontroller - 100 pin I have configured pin 82 as an ADC input. ADC Reference voltage is 5V (provided from an LDO whose input voltage is 12V) To test my ADC accuracy, I took a ...
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What is ADC Supply Current in Microcontroller and how much current will a GPIO take

I am having this Microcontroller In this Microcontroller, I am using the ADC peripheral and normal GPIO port. My questions: On Page 58, table 42, There is a parameter called as Supply Current per ...
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Reverse engineering of logic board

I'm trying to do some reverse engineering and want to know if there is a way to reprogram the controllers of a board like this one. I know usually the manufacturers have some pins on the boards ...
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MCP25625 SPI MISO Not Responding

As per title, I'm trying to send a simple 'READ' (0x03) command to the device and get the contents of the CANCTRL register (0x0F). I even moved past our project board and bought Microchip's ...
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How can I wire a microusb to a MIMXRT1062DVL6A?

I've never touched a barebones microcontroller before. I've been toying around with an Arduino and Teensy for a few years now. Recently I've been itching to ditch the comfort of those buttercup ...
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LPC-Link2 Not Working as CMSIS-DAP with OpenOCD

I'm working on a project with the NXP LPC824 using VisualGDB and OpenOCD. Using the LPCXpresso824-MAX dev board I had no trouble programming and debugging using OpenOCD. I am using the version of ...
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STM32 firmware upgrade (In-System Programming) over USB?

There are many ways to program an STM32 chip (in my case STM32L4R5): USB DFU mode (using DFuSe utility from ST) UART Serial Port (through something like FTDI chip)...
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NFC antenna connection to ground midway through loop

I'm designing a PCB etched NFC antenna. I'm confused about a design element I've seen in several production boards. I haven't seen this element explicitly discussed in any app notes or design guides. ...
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Regenerate IRK for NXP QN9020 Bluetooth Low Energy Peripheral

According to Bridging the GAP: Bluetooth LE Security Part 3, IRK Re-generation Each time you clear your peripheral’s bonds, and open it up to a new pairing, you should re-generate your IRK. Why? iOS ...
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Flashing firmware onto NXP QN9020 via SEGGER J-Link

Here I am attempting to flash the firmware using SEGGER J-Flash Lite. Below is the ouput when attempting to connect via the SEGGER J-Link Commander. ...
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SD Card formatting in FAT 32 file system

I am using NXP Micro for interfacing microSD card with FAT32 file system. for implementation I am using drivers located at below link. https://embedded-code.com/source-code/memory/secure-digital-mmc-...
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Building NXP QN9020 firmware on GNU/Linux?

I just inherited a project that is based on the NXP SDK samples, (not quite sure which one). It is currently being built with µVision 4; but I would like to convert the build system to use ...
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NTAG213 Not being picked up by the RC522 Module

I have been using the RC522 module to read and write things to the tags it came with. But when I tried to use an NTAG213 I bought for a recent project it will act as if it isn't there. I've tried a ...
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Mcu keeps reseting because of noise

I have a circuit in which there is a mcu lpc1768 and a gsm module sim800l. For power I use DC/DC converter and made a 4.2v using lm2576 for sim800l. Used that voltage, I made a 3.3v using ams1117 and ...
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Can we store hex data through UART into flash and RUN it from that particular location

I am trying to store my hex file in another sector of the flash memory i.e (0x00050000) I want to store a hex file at different sector of the flash and to change the execution point to that address ...
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LPC1768 internal RTC time register is not incrementing

Value is read right,but time is not incrementing. ...
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216 views

How to enter into ISP mode through 'reinvoke ISP' in LPC1759

In LPC1759, I entered ISP through "reinvoke ISP" with the following steps Disable PLL Reset timer 1 Re-map interrupt vectors Set watch dog timeout Reinvoke ISP After entering into ISP, What exactly ...
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Does CodeWarrior IDE support software debugging of MCF51JM128?

IDE -CodeWarrior Microcontroller-MCF51JM128
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Equivalent Series Resistance of 13.56 MHz RFID Antenna

I am designing a system that uses the MFRC522 by NXP Semiconductors and I am having a bit of difficulty designing the antenna. NXP provide an antenna design guide under the application note AN1445 ...
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What is the maximum supported I2C mode in the FS32K146?

In the S32K146 user-manual guide, it is mentioned as High-Speed mode is not supported by this device. (Page 1481). But in the coming section of the user-manual it is mentioned as device support HS ...
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What are the possible boot modes in the S32K146 (NXP S32K Series MCU)

I have been investigating S32K146 MCU boot modes and possible mode selection options. I am interested to know the possible boot modes and how it can be set up. From datasheet (Page -92): It can be ...
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NXP LPC-Link 2 hangs when flashing and debug

im using a JTAG probe NXP LPC link 2 , with IAR Embedded workbench and procesor LPC1766. for some reason when i compile and try to load either a debug or release firmware onto the LPC1766 , it works ...
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TWR-VF65GS10, how to programm? [closed]

We have a task to design IEEE 61850 compatible board. So we considered several options for MCU for the board: stm32f7xx series or something more powerful like NXP MVF6xx series or Sitara AM3358 series....
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KTY82/220 Temperature sensor terminals

I wanted to use NXP KTY82/220(https://www.nxp.com/docs/en/data-sheet/KTY82_SER.pdf) temperature sensor for my circuit. But I could not see which are the terminals for Vdd, GND and Analog Out in ...
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Accelerometer MMA8451 issue

We at my company, has a very strange issue regarding til MMA8451. We are experincing that our accelerometers data can be suddenly wrong over time. We have approximately 250 devices out, running in ...
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Writing 32 Bit Data value SPI NXP K66

How would I send 32bit data values using SPI of K66.. here is my attempt. The problem is only some parts of the 32bits are shown in the scope ...
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Debugging SPI problems on NXP K66

I'm trying the sample provided by K66 SDK from NXP and it doesn't work at all. I attached a scope and monitoring the data that is transfered from the uC to the slave but nothing is there. I have ...
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i2c probe happens only alternatively

I have connected a NXP NFC Module (pn7120) over I2C to i.MX6 Board. I tried to check whether the device is detected in the i2c probe command. It didn't detect in the first call, but got detected in ...
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i2c read error but probe succeeds

Can you please tell me a scenario where i2c probe gives the slave address but i2c read command fails..
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