Stations with redirect will not work when SPIRAM enabled

[h1aji]

Hi Ed, I noticed that if SPIRAM enabled then stations with redirect wont work. Here is output

D: New preset/file requested (1/0) from n0d.radiojar.com/hcrb063nn3quv
D: Connect to new host n0d.radiojar.com/hcrb063nn3quv
D: Connect to n0d.radiojar.com on port 80, extension /hcrb063nn3quv
D: Connected to server
D: Switch to HEADER
D: Access-Control-Allow-Origin: *
D: No data input
D: No data input
D: Trying other station/file...
D: STOP requested
D: New preset/file requested (8/0) from stream.live.vc.bbcmedia.co.uk/bbc_world_service

Although ringbuf works perfectly fine

[Edzelf]

Yes, I know. That is because there is a delay (a number of input bytes). The redirect info is less than that number and is therefore not handled.

[h1aji]

Is there a quick way to fix it? Thanks

Also please see my version spiram.cpp without external library.

//******************************************************************************************
// SPI RAM routines.                                                                       *
//******************************************************************************************
// Use SPI RAM as a circular buffer with chunks of 32 bytes.                               *
//******************************************************************************************

#include <SPI.h>

#define SRAM_SIZE  131072                   // Total size SPI ram in bytes
#define CHUNKSIZE      32                   // Chunk size
#define SRAM_CH_SIZE 4096                   // Total size SPI ram in chunks

#define SRAM_CS        10                   // GPIO1O SRAM CS pin
#define SRAM_FREQ    16e6                   // The 23LC1024 supports theorically up to 20MHz

// SRAM opcodes
#define SRAM_READ    0x03
#define SRAM_WRITE   0x02

// Global variables
uint16_t   chcount ;                       // Number of chunks currently in buffer
uint32_t   readinx ;                       // Read index
uint32_t   writeinx ;                      // write index



uint32_t spiTransfer32 ( uint32_t data )
{
  union { uint32_t val; struct { uint16_t lsb; uint16_t msb; }; } in, out;
  in.val = data;
  out.msb = SPI.transfer16 ( in.msb ) ;
  out.lsb = SPI.transfer16 ( in.lsb ) ;
  return out.val;
}


void spiramWrite ( uint32_t addr, uint8_t *buff, uint32_t size )
{
  int i = 0;
  while ( size-- )
  {
      SPI.beginTransaction ( SPISettings ( SRAM_FREQ, MSBFIRST, SPI_MODE0 ) ) ;
      digitalWrite ( SRAM_CS, LOW ) ;
      spiTransfer32 ( (SRAM_WRITE<<24)|(addr++&0x00ffffff) ) ;   // Set write mode
      SPI.transfer ( buff[i++] ) ;
      digitalWrite ( SRAM_CS, HIGH ) ;
      SPI.endTransaction();  
  }
}


void spiramRead ( uint32_t addr, uint8_t *buff, uint32_t size )
{
  int i = 0;
  while ( size-- )
  {
      SPI.beginTransaction ( SPISettings ( SRAM_FREQ, MSBFIRST, SPI_MODE0 ) ) ;
      digitalWrite ( SRAM_CS, LOW ) ;
      spiTransfer32 ( (SRAM_READ<<24)|(addr++&0x00ffffff) ) ;   // Set read mode
      buff[i++] = SPI.transfer ( 0x00 );
      digitalWrite ( SRAM_CS, HIGH ) ;
      SPI.endTransaction();  
  }
}


//******************************************************************************************
//                              S P A C E A V A I L A B L E                                *
//******************************************************************************************
// Returns true if bufferspace is available.                                               *
//******************************************************************************************
bool spaceAvailable()
{
  return ( chcount < SRAM_CH_SIZE ) ;
}


//******************************************************************************************
//                              D A T A A V A I L A B L E                                  *
//******************************************************************************************
// Returns the number of chunks available in the buffer.                                   *
//******************************************************************************************
uint16_t dataAvailable()
{
  return chcount ;
}


//******************************************************************************************
//                    G E T F R E E B U F F E R S P A C E                                  *
//******************************************************************************************
// Return the free buffer space in chunks.                                                 *
//******************************************************************************************
uint16_t getFreeBufferSpace()
{
  return ( SRAM_CH_SIZE - chcount ) ;                   // Return number of chunks available
}


//******************************************************************************************
//                             B U F F E R W R I T E                                       *
//******************************************************************************************
// Write one chunk (32 bytes) to SPI RAM.                                                  *
// No check on available space.  See spaceAvailable().                                     *
//******************************************************************************************
void bufferWrite ( uint8_t *b )
{
  spiramWrite ( writeinx * CHUNKSIZE, b, CHUNKSIZE ) ;  // Put byte in SRAM
  writeinx = ( writeinx + 1 ) % SRAM_CH_SIZE ;          // Increment and wrap if necessary
  chcount++ ;                                           // Count number of chunks
}


//******************************************************************************************
//                             B U F F E R R E A D                                         *
//******************************************************************************************
// Read one chunk in the user buffer.                                                      *
// Assume there is always something in the bufferpace.  See dataAvailable()                *
//******************************************************************************************
void bufferRead ( uint8_t *b )
{
  spiramRead ( readinx * CHUNKSIZE, b, CHUNKSIZE ) ;    // return next chunk
  readinx = ( readinx + 1 ) % SRAM_CH_SIZE ;            // Increment and wrap if necessary
  chcount-- ;                                           // Count is now one less
}


//******************************************************************************************
//                            B U F F E R R E S E T                                        *
//******************************************************************************************
void bufferReset()
{
  readinx = 0 ;                                         // Reset ringbuffer administration
  writeinx = 0 ;
  chcount = 0 ;
}


//******************************************************************************************
//                                S P I R A M S E T U P                                    *
//******************************************************************************************
void spiramSetup()
{
  SPI.begin();
  pinMode ( SRAM_CS, OUTPUT ) ;
  digitalWrite ( SRAM_CS, HIGH ) ;

  digitalWrite ( SRAM_CS, HIGH ) ;
  delay ( 50 ) ;
  digitalWrite ( SRAM_CS, LOW ) ;
  delay ( 50 ) ;
  digitalWrite ( SRAM_CS, HIGH ) ;

  SPI.beginTransaction ( SPISettings ( SRAM_FREQ, MSBFIRST, SPI_MODE0 ) ) ;
  digitalWrite ( SRAM_CS, LOW ) ;
  SPI.transfer ( 0x01 ) ;                             // Write mode register
  SPI.transfer ( 0x00 ) ;                             // Set byte mode
  digitalWrite ( SRAM_CS, HIGH ) ;
  SPI.endTransaction();

  bufferReset() ;                                     // Reset ringbuffer administration
}

[Edzelf]

I have no way to test it.

[h1aji]

I tested it and it works fine

[Edzelf]

so, what is the problem?

[h1aji]

No issue with the code itself. Just redirect is not working

[h1aji]

Hi @Edzelf I was trying to modify https://github.com/Edzelf/Esp-radio/blob/65f20ce4a5334ed1a272d046e8ed7f6b73dbb5e5/Esp_radio.ino#L2478

with no success.

Would you be able to advise how it can be done, maybe you can give me a clue? Thanks