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Recent content by bremenpl

  1. bremenpl

    Initial value depending on the input

    I see... But the problem here is that the mentioned reset signal is probably a signal entering the component. This design would require a physical reset to be performed a startup, this is not automatic, do I understand correctly?
  2. bremenpl

    Initial value depending on the input

    This is just an example. In the if statement part I had another statement that sets the counter variable, depending on the input signal. That did not work as well. How else can I create a 1 time execution situation?
  3. bremenpl

    Initial value depending on the input

    You are right, but the thing is to make the input being read only once. Please take a look at this MWE: --! Debounce hysteresis mechanism implementation architecture arch_debounce of entity_debounce is begin process_debounce : process(clk) variable test : bolean := false; begin...
  4. bremenpl

    Initial value depending on the input

    Hello, thank you for answer. I tried doing just that- it did not help as well. I think in my situation (MachXO2 from Lattice) it is somewhat not possible to initialize the values this way. For example, when I created a separate bolean variable that is initialy false, and then in the behavioral...
  5. bremenpl

    Initial value depending on the input

    Hello there, I am designing a simple debounce mechanism in VHDL. I have the following problem. An internal counter (a variable) should be initially set to 0 or some value (ie. 100), depending on either the input is high or low at power up. I have no idea how to implement this. Is it even...
  6. bremenpl

    50 Ohm inmpedance matching for 4 layers PCB

    I was planning to use both internal planes for GND and use stitching on whole board with additional vias around the antenna NET.
  7. bremenpl

    50 Ohm inmpedance matching for 4 layers PCB

    Thank you for answer, That is something I was exacly wondering about, and even thought of it. I started doubting it, because the impedance I obtained from AppCad differed a lot from 50R when used parameters from the datasheet.
  8. bremenpl

    50 Ohm inmpedance matching for 4 layers PCB

    Hello there, I have a question regarding calculating track width and gaps on the side for 4 layer PCB board, in order to maintain 50 ohm impedance for it. The term I have come across for calling this is "Coplanar waveguide". My problem is, that I need to calculate the widths for 4 layer PCB...
  9. bremenpl

    LTE vs 3G power cost at low speed

    I am currently working on a device in which I need to implement internet connection. For that I intend to use a GSM module, for example this one: SIM5320. This is a 3G module. I have been reading about 3G vs LTE power consumption comparison (this is a good one: Comparing LTE and 3G Energy...
  10. bremenpl

    Most comprehensive guide to Eagle

    Thank you for the answer. But before I jump into scripting and all, I need to figue out how to do basic tasts fast ie. Schematics, schematic DRC, PCB, PCB DRC and rules, component creation (Also with 3D steps if thats possible). Would there be any specific source you would advice me?
  11. bremenpl

    Most comprehensive guide to Eagle

    Hello there, I am a long time Altium Designer user. Now I have to swap to Eagle for various reasons... I was looking for an advice on getting the most complete step by step guide on the usage of this software. I know that there are a lot of tutorials over the internet, but non of them is "full"...
  12. bremenpl

    SST26VF032B operation problem

    I can post the code, it is not a problem. The thing is some of the commands work, so I am assuming the code works and I am doing something wrong with the configuration. This is the function that should do the initialization of the chip communication: /* * @brief Final initialization...
  13. bremenpl

    SST26VF032B operation problem

    I use my own code. I have only found the topic with your code and verified that I do everything correctly. In my situation the SST26VF032B chip doesnt output anything on MISO line after asking him for status register etc. He only answers for identification commands.
  14. bremenpl

    SST26VF032B operation problem

    The topic is about something else really, I just wanted to point out that the configuration is alright. My problem is that The only instructions that work for me are the Identification instructions. I cannot read status register, config register or block protection register. I think I tried...
  15. bremenpl

    SST26VF032B operation problem

    Hello there, I am writing a library at the moment to interface my STM32 mcu with SST26VF032B memory. I have a problem that I cannot solve for over 2 days now... I am talking to the chip using regular SPI, not quad SPI. I am able to read JEDEC-ID as well as RDSR register. This ensures me in the...

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