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[UlrichMai]

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[katfreak2]

Hi,

I have some questions about your code.

You have defined a table with all the bits for the (select, led, 7-segment, button query).
I see that you sample each bit until you have 16bits received and than execute the next code:

void ICACHE_RAM_ATTR SPI_handleLatch() {

  if (clkCount == 16) {
    //Valid if 16 clock cycles detected since last latch
    if (false);
    else if (simulateButtonPress());
    else if (bitRead(buf, 6) == 0)  readSegment(0);
    else if (bitRead(buf, 5) == 0)  readSegment(1);
    else if (bitRead(buf, 11)== 0)  readSegment(2);
    else if (bitRead(buf, 2) == 0)  readSegment(3);
    else if (bitRead(buf, 14)== 0)  readLEDStates();
  }
  // reset buffer
  buf = 0;
  clkCount = 0;

}

if we for example received data to run this line: else if (bitRead(buf, 6) == 0) readSegment(0);

readSegment(0) is directly executed so you use the same data in buf but now you are checking the 7 segment bits.

how is this possible? don't you need to read again 16bits before running readSegment(0)??
how do you know you received the 7 segment packet or another one?