Questions tagged [nxp]

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

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25 views

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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2answers
32 views

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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0answers
27 views

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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1answer
45 views

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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21 views

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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19 views

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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0answers
28 views

How to configure the FlexMemory of NXP Kinetis MKE18F to be used as an EEPROM to store data on System power OFF?

I was trying to configure the Flash module of NXP MKE18F512VLL16 MCU to be used as an EEPROM. I followed the attached application note from NXP(AN5338) "How to use FlexMemory as D-Flash and ...
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0answers
27 views

How to add run-time initialization and power source stabilization delay in software for NXP LPC11E67?

I am using LPC11E67 microcontroller for the project and using MCUXpresso IDE for software development. I want to clear memory and initialize content of global variables at the startup, I am not sure ...
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0answers
21 views

How to measure resistance/voltage with NHS3152 General Starter Kit?

I have just started running NHS3152 General Starter Kit, with the LPC-Link 2 debugger and LPCXpresso as IDE. I have managed to run "App_demo_dp_bLinky" example. However I cannot find an ...
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1answer
42 views

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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1answer
225 views

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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80 views

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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1answer
59 views

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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2answers
91 views

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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46 views

Power circuit for a microprocessor

This is my first question here, and my english is not the best, so i am sorry if i miss some community rules :) I have a microprocessor MIMXRT1064DVL6A from NXP, and I am having a bad time figuring ...
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1answer
178 views

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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1answer
83 views

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 ...
1
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1answer
179 views

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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1answer
75 views

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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0answers
423 views

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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2answers
2k views

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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2answers
370 views

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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0answers
23 views

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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1answer
146 views

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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2answers
221 views

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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2answers
98 views

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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1answer
360 views

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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2answers
283 views

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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323 views

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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0answers
120 views

LPC1768 internal RTC time register is not incrementing

Value is read right,but time is not incrementing. ...
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2answers
150 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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2answers
58 views

Does CodeWarrior IDE support software debugging of MCF51JM128?

IDE -CodeWarrior Microcontroller-MCF51JM128
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1answer
362 views

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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0answers
46 views

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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1answer
406 views

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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1answer
139 views

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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1answer
47 views

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....
1
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1answer
118 views

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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3answers
214 views

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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0answers
36 views

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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1answer
121 views

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 ...
0
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1answer
86 views

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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1answer
1k views

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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2answers
84 views

How is a NFC “connected tag” different from a full blown NFC reader?

I have played with NFC in the past, but those were full blown "NFC readers" based on NXP pn53x chips. I want to know, how is a so called "Connected tag" different from NFC readers? I found this chip ...
4
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1answer
251 views

LPC1343 double pin functions

I was looking to create a LPC1343 development board, but I noticed something odd. If you look at the pinout for this MCU you can see double functions for some pins. This is common, so you can program ...
1
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1answer
239 views

smart card clocking using NXP

In my current project, I'm trying to implement a smart card reader using LPC1788 which has a built-in smart card interface. Smart cards use the ISO7816-3 standard to communicate with the outside world....
1
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1answer
225 views

Power on reset and watchdog signal combination question

I'm working with the i.MX RT1050 processors and designing a POR circuit. I found the following circuit in the reference design but I don't understand how it's meant to work. The UM805RE is a voltage ...
2
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2answers
367 views

FatFs f_write not working in LPC1788 Timer ISR

I’m using LPC1788 MCU with KeilV5 compiler. I Have a Timer ISR in which I read a value form specific ADC channel and write it into a SD-Card using FATFS library. Here is my Timer ISR code: ...
0
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1answer
208 views

Send serial data to a specific Zigbee Node with HA (NXP Zigbee HA)

I have a Zigbee End-device based on JN5168 from NXP I want to release it as a lock that is battery powered. Apart from accepting the HA lock cluster commands, I need to send some custom data (some ...
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1answer
129 views

ethernet connection of nxp processor [closed]

ı designed a circuit schematic by using altium designer to ethernet connection of my processor (nxp lpc43s50fet256) ı added a circuit schematic as altium designer file .You can see my complete ...