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void uploadFont()
{
  uint16_t byte_count = 0;
  byte bit_count;
  byte ascii_binary[0x08];
  
  // move these local to prevent ram usage
  uint8_t character_bitmap[0x40];
  int font_count = 0;
  
     osd.clear();
     osd.setPanel(6,9);
     osd.openPanel();
     osd.printf_P(PSTR("Update CharSet")); 
     osd.closePanel();
  
  
  Serial.printf_P(PSTR("Ready for Font\n"));
  
                while(font_count < 256) { 
                int8_t incomingByte = Serial.read();
    switch(incomingByte) // parse and decode mcm file
    {
      case 0x0d: // carridge return, end of line
        //Serial.println("cr");
       if (bit_count == 8 && (ascii_binary[0] == 0x30 || ascii_binary[0] == 0x31))
       {
          // turn 8 ascii binary bytes to single byte '01010101' = 0x55
          // fill in 64 bytes of character data
// made this local to prevent needing a global
  byte ascii_byte;

  ascii_byte = 0;
  
  if (ascii_binary[0] == 0x31) // ascii '1'
    ascii_byte = ascii_byte + 128;

  if (ascii_binary[1] == 0x31)
    ascii_byte = ascii_byte + 64;

  if (ascii_binary[2] == 0x31)
    ascii_byte = ascii_byte + 32;

  if (ascii_binary[3] == 0x31)
    ascii_byte = ascii_byte + 16;

  if (ascii_binary[4] == 0x31)
    ascii_byte = ascii_byte + 8;

  if (ascii_binary[5] == 0x31)
    ascii_byte = ascii_byte + 4;

  if (ascii_binary[6] == 0x31)
    ascii_byte = ascii_byte + 2;

  if (ascii_binary[7] == 0x31)
    ascii_byte = ascii_byte + 1;
          
         character_bitmap[byte_count] = ascii_byte;
         byte_count++;
         bit_count = 0;
       }
       else
         bit_count = 0;
      break;
      case 0x0a: // line feed, ignore
        //Serial.println("ln");   
      break;
      case 0x30: // ascii '0'
      case 0x31: // ascii '1' 
        ascii_binary[bit_count] = incomingByte;
        bit_count++;
      break;
      default:
      break;
    }
    
      // we have one completed character
  // write the character to NVM 
  if(byte_count == 64)
  {
    osd.write_NVM(font_count, character_bitmap);    
    byte_count = 0;
    font_count++;
    Serial.printf_P(PSTR("Char Done\n"));
  }
              }
  
//  character_bitmap[]
}