Questions tagged [nxp]
NXP is a manufacturer of semiconductors, both ICs and discrete components.
118
questions
4
votes
2
answers
169
views
Converting PMSM motor differential equation to difference equation/discrete-time implementation
I am researching about sensorless control of PMSM, and currently looking at how to implement the algorithm into code. From this link Module 9: Position Observer (Part 2/2). I encountered the equations ...
- 1,251
0
votes
0
answers
33
views
NXP and TMP75 I2C communication
I'm trying to read temperature from TMP75 sensor using NXP family microcontroller. I'm able receive proper temperature data, but with Send() command I'm getting errors in my handling procedure.
I've ...
- 101
0
votes
2
answers
538
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 ...
CommunityBot
- 1
1
vote
1
answer
921
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 ...
CommunityBot
- 1
1
vote
1
answer
564
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 ...
- 1
1
vote
2
answers
806
views
Connecting a 2 pair ethernet to 4 pair ethernet
I have a switch that has a 4 wire (2 twisted pairs) ethernet interface which I want to connect to an i.MX8 Plus MPU (GBit ethernet with 4 pairs). I need to design the PCB that connects the MPU to the ...
- 149k
1
vote
0
answers
69
views
How can I use normal CAN with CAN FD?
I'm working with i.MX6ULL not supporting CAN FD but other CAN nodes supports. How can I use normal CAN on this bus without making any hardware changes?
I need to fix CAN to CAN FD communication ...
- 34.1k
1
vote
2
answers
90
views
GPIO vs GPIO-HD vs GPIO-FAST
I am using NXP S32K148 in one of my design. In the IO signal table I can see that for some pins, pad type is written as:
GPIO
GPIO-HD
GPIO-FAST
May I know the difference between these three?
- 149k
1
vote
0
answers
70
views
Why CPU DDR Memory Controller Has 2 Clock Outputs?
I'm trying to understand the ddr structure for the iMX6 Rex Module .
The cpu used is the MCIMX6Q5EYM10AC model from the NXP i.mx quad series.
MCIMX6Q5EYM10AC Datasheet
iMX6 Rex Module Shematics
A ...
- 711
0
votes
1
answer
251
views
eMMC initialisation questions about CMD line and its handshake commands
I'm trying to a new board working that has an eMMC connected to an iMX RT1062 via a multipelxer.
On the previous board, without a multiplexer it worked, but I don't have one of these boards to compare ...
- 549
0
votes
1
answer
48
views
Configuring S32K148 Microcontroller 144pins LQFP pin no 113(PTA1) as pull down
I am using S32K for current measurement purpose.
Using pin no 113 as ADC input.
I can see in the datasheet that ,we can configure this pin as pull down or pullup.
May I know is this possible to set ...
- 149k
0
votes
1
answer
63
views
FXOS8700CQ accelerometer sensor interrupt output not working
I am trying to get interrupt output on INT2 pin of FXOS8700CQ sensor when the FXOS8700CQ sensor is moved, but anyhow i cannot do this. i did setup the register perfectly. please check my following ...
- 151
1
vote
2
answers
1k
views
MC68000 Modern Equivalent (or can/should I use NRND/EOL chips)
I am designing a SBC that will feature the Motorola 68000 (or one of its descendants) but am having trouble finding new chips. The only chips that I have been able to find on Mouser or Digi-Key are ...
- 7,560
0
votes
0
answers
96
views
How to send 13 bit LIN (Local Interconnect Network ) Break?
I use MC9S08DZ96 MCU (NXP). I wrote the corresponding registers to create a break at the beginning of the data LIN frame. The data frame is sent correctly, but the problem is that the break part is ...
- 82.6k
0
votes
0
answers
48
views
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:
...
- 9,205
0
votes
0
answers
132
views
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 [...
0
votes
0
answers
46
views
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?
- 143
0
votes
1
answer
56
views
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 ...
- 4,837
0
votes
1
answer
189
views
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 ...
2
votes
3
answers
8k
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)...
- 313
3
votes
0
answers
88
views
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 ...
- 69
1
vote
1
answer
900
views
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 ...
- 19.3k
1
vote
0
answers
201
views
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 ...
- 94.9k
0
votes
1
answer
450
views
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 ...
- 14.3k
0
votes
1
answer
130
views
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 ...
0
votes
1
answer
46
views
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 ...
- 20.2k
2
votes
2
answers
261
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).
...
0
votes
2
answers
161
views
Does CodeWarrior IDE support software debugging of MCF51JM128?
IDE -CodeWarrior
Microcontroller-MCF51JM128
- 17.9k
4
votes
2
answers
790
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-...
- 8,016
0
votes
2
answers
120
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 ...
0
votes
0
answers
182
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 ...
- 71.4k
0
votes
2
answers
1k
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.
...
- 7,986
1
vote
0
answers
37
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 ...
- 23k
0
votes
1
answer
264
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 ...
CommunityBot
- 1
0
votes
1
answer
697
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 ...
- 1,334
1
vote
1
answer
228
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 ...
- 14k
1
vote
0
answers
154
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 ...
- 111
0
votes
1
answer
72
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 ...
- 17k
0
votes
2
answers
117
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 ...
- 34.3k
1
vote
1
answer
942
views
PN512 not starting?
I got a PN512 IC (NFC controller from NXP) interfacing with a MCU over SPI and ChibiOS. Everything seems to be working fine, i can read the registers and they returned value matches with the reset ...
- 4,640
1
vote
1
answer
1k
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 ...
- 23k
0
votes
1
answer
214
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 ...
- 54.1k
1
vote
0
answers
903
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 ...
- 101
3
votes
4
answers
3k
views
What are the implications of a ROMLESS device?
I was looking through the microcontrollers area of Digikey and I noticed a device that i'm interested in although there is the description of "ROMLESS" in the program memory type.
http://www.digikey....
- 77.5k
0
votes
1
answer
101
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 ...
- 8,951
0
votes
0
answers
50
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 ...
CommunityBot
- 1
0
votes
1
answer
453
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.
...
- 63
0
votes
2
answers
139
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 ...
- 111
1
vote
2
answers
608
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 ...
- 75
0
votes
0
answers
767
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 ...
- 13