How to cascade Hexadecimal no

Projects General Guidance
1

char host1[]= {0xDD,0xA5,0x03,0x00,0xFF,0xFD,0x77};
//Desired output=0xDDA50300FFFD77

2

Output to what?

3

@deepakgautam, your topic has been moved to a more suitable location on the forum. Installation and Troubleshooting is not for problems with (nor for advise on) your project :wink: See About the Installation & Troubleshooting category.

Do you see [] in your on-liner? That's because you did not use so-called code tags; please read the section about posting code in How to get the best out of this forum and applyn it in future.

4

I want to cascade all the hexadecimal numbers in a variable from the array.

5

I'm sorry, I didn't realise that this was a game of Synonyms.

Where do you want to flood the data to?

6

Hello deepakgautam
Take some time and describe the desired function of the sketch in simple words and this very simple and short form.
Have a nice day and enjoy coding in C++ and feel free to reply for any help.
Дайте миру шанс!

7

Maybe something like this?

  unsigned char host1[] = {0xDD, 0xA5, 0x03, 0x00, 0xFF, 0xFD, 0x77};

  uint64_t x = 0;
  for (size_t i = 0; i < sizeof(host1); i++) {
    x = x << 8 | host1[i];
  }

  // x now contains 0xdda50300fffd77
1 Like
8

@jfjlaros

You codes generate expected output:

DDA50300FFFd77

Test Sketch

void setup()
{
  Serial.begin(115200);
  unsigned char host1[] = {0xDD, 0xA5, 0x03, 0x00, 0xFF, 0xFD, 0x77};

  uint64_t x = 0;
  for (size_t i = 0; i < sizeof(host1); i++) 
  {
    x = x << 8 | host1[i];
  }
  uint32_t *ptr;
  ptr = (uint32_t*)&x;
  uint32_t ml = *ptr;
  ptr++;
  uint32_t mh = *ptr;
  Serial.print(mh, HEX); //shows upper 32-bit DDA503
  if((ml & 0xFF000000) == 0)
  {
    Serial.print("00");
  }
  Serial.print(ml, HEX); //shows lower 32-bit as: 00FFFD77  
  // x now contains 0xdda50300fffd77 

}

void loop() 
{
  
}
1 Like
9

Thanks a lot. Its working.

10

The credit is for @jfjlaros. He wrote the codes for processing and I added codes to print the output.

11

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