1. E

    Want to update one address location in hex file

    In my one project i want to give some serial number and want to store it in the flash for the first time while flashing. I don't want to build the project again for updating the serial number. Is it possible to update the address location in .bin using any tool command line and flash the...
  2. Khisraw

    Offsetting input voltage in PICAXE-08M2 MCU

    Hi, I am connecting a sensor to PICAXE08M2 MCU. The sensor is read in pin C.4 and when it is off is 1.8V and 5V when it is fully ON. I need to offset the 1.8V. I need to write the codes in Basic. The ADC is 8 bit and the maximum value would be 255. My codes are below. Main: Readadc C.1...
  3. ashokraj

    For a fpga, how can i determine maximum number of pins I can use for pwm ?

    Hi, I come from the background of microcontroller design. I am learning fpga design. Usually in the ucontrollers the total number of pwm is limited as per the vendors. In FPGA how can i determine the maximum number of pwm I can drive from a fpga. For example, currently i am working with...
  4. Rui Fernandes

    ZMOD4410 - I2C with MSP430FR2155

    Hi, I am currently working with a sensor platform to measure IAQ. One of the sensors that I am using is the ZMOD4410 developed by Renesas to measure TVOC. I am having trouble with the sensor's I2C. In the datasheet it says that the implemented transmission protocol is similar to conventional...
  5. E

    Feeding load with two 220V AC power supplies to reach uninterrupted power supply.

    As shown in the diagram, I am trying to connect two power sources to load. The battery source is for emergency in the case of power outage of the wall source. I want the switching to be instantaneous with no interruption of power. What is the best solution to this problem? Is there a board...
  6. J

    Schottky Diode as overvoltage protection

    At work, they are using this structure to protect an analog pin on a micro-controller from overvoltage. I simulated the circuit and wired it up to test it (physically), but the output is linear in both (which I expected). One engineer at work assures me this works, and that once V5 = V6 + 0.6V...
  7. Alex_Khan

    Opto-isolator/ optocoupler for electric isolation in IC design.

    Hello everyone. I came across while reading the opto-isolator technique used for electric isolation in embedded systems/ Integrated Circuits design that " Opto-isolator is not recommended for electric isolation in power applications IC's mainly due to its dV/dt sensitivity". So I would like to...
  8. E

    Problem while flashing PIC Controller with PICKIT3

    i am facing problem while programming PIC16F18875 using pickit3. I am using mplab x on windows 10. I bought new chip and and from first i am getting problem. currently i am giving power from pickit3 which is approx, 4.5V. I checked the connection for MCLR, VDD, VSS, PGD and PGC pin. I have...
  9. E

    manage 12V pulse and 5V pulse on the same pin

    I have Atmel controller which requires a 12V pulse and 5V pulse during flashing. I have a 12V supply and derived 5V from it using a regulator. But I want to know how can I give the 12V pulse and 5V pulse on the same pin. We can manage to give pulse single voltage level using NPN transistor but...
  10. R

    Fan Regulator Feedback Generator

    Hello Everyone, I need help in to generate feedback for fan regulator to the controller. 1. AC Fan require 1 phase Ac supply (230VAC/50Hz) 2. Controller require DC voltage in range of 0 to 3V3 3. System is able to support all type regulator, there different type's...
  11. W

    Problem: Raspberry Pi to NXP MPC5744p over SPI

    Hello, I am currently trying to get SPI data transfer between the MPC5744p and a Raspberry Pi 4 to work. I'm using the SPIdev python toolkit to send the value 26 over to the MPC, using the attached SPItest.py script. To receive this, i've modified the code of the SPI_MPC5744P example to only...
  12. E

    Developing an automated tester for electronic drive lines

    Hello everyone, I'm a graduating Elektrical Engineering student, for my last year project I have to develop an prototype for an automated testsystem for electronic drive lines. I started this thread to get help and tips about building this system. First of all , I should make some dynamic...
  13. C

    FIELD ORIENTED CONTROL DISSERTATION

    Hi everyone, I am a final year student who is making a dissertation on Field-Oriented Control (FOC) with a BLDC motor. I am having the issue that with the virus outbreak I have had to modify a lot how to carry out my dissertation. As a result, I do not know what to write about anymore. I would...
  14. C

    Is there any FOC Software available for STM32 Nucleo-64 G474RE board?

    Hi everyone, I have recently bought an STM32 Nucleo-64 G474RE. I want to use this MCU for Field-Oriented Control (FOC or Vector Control) with a BLDC motor. I have seen there are many libraries available and there is the ST Motor Control Workbench tool available. But I am confused as to which...
  15. ZCochran98

    Custom Microcontroller Design Verification And/Or Advice

    I'm working on a custom microcontroller design based largely off of NXP's K64 FRDM boards as part of a larger project, and recently (despite the date on the schematic) finished what may be considered "version 1." As a brief background, this board will have a sibling layout embedded into a larger...
  16. julprogrammer

    Improving Embedded Systems Code Quality Using Static Code Analysis

    It’s not a secret that the code quality standards for embedded systems software are much higher than those for games, photo editors and others. The requirements have increased after cases when hardware having got out of control caused a lot of tragic situations and, at best, great deal of money...
  17. G

    What is required to create a device like Raspberry Pi from scratch?

    Hello everyone! I hope I'm writing to a correct forum. I want to find out what is required to create my own mini computer by myself. I worked with microcontrollers and created some devices based on microcontrollers, but now I would like to go ahead and create my Raspberry-like device. My...
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