[Faust] Memory allocating problem.

[KazanskiyMaks]

(Sorry for my English)
I'm learning the usage of Faust using regular ESP32 DevKit V1(based on ESP32-WROOM-32) by following examples.

Since examples had written for "AudioKit", I just replaced "out" stream to "i2s" (for use working external DAC).

Example "streams-faust_noise-i2s" are well worked, but "streams-faust_flute-i2s" are force board to endless reboot loop with error "[E] AudioFaustDSP.h : 229 - allocate 262144 bytes - failed".

Both examples had compiled and upload without any errors.

Can it be caused by low RAM or board isn't compatible?

Full board log:

19:47:14.522 -> ets Jun  8 2016 00:22:57
19:47:14.522 -> 
19:47:14.522 -> rst:0xc (SW_CPU_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
19:47:14.556 -> configsip: 0, SPIWP:0xee
19:47:14.556 -> clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
19:47:14.556 -> mode:DIO, clock div:1
19:47:14.556 -> load:0x3fff0030,len:1344
19:47:14.556 -> load:0x40078000,len:13516
19:47:14.556 -> load:0x40080400,len:3604
19:47:14.556 -> entry 0x400805f0
19:47:14.795 -> [D] AudioFaust.h : 54 - bool audio_tools::FaustStream<DSP>::begin(audio_tools::AudioBaseInfo) [with DSP = mydsp]
19:47:14.795 -> [D] AudioFaustDSP.h : 200 - info 16
19:47:14.795 -> [D] AudioFaustDSP.h : 200 - info 262144
19:47:14.795 -> [D] AudioFaustDSP.h : 200 - info 268
19:47:14.795 -> [D] AudioFaustDSP.h : 200 - info 8
19:47:14.795 -> [D] AudioFaustDSP.h : 200 - info 8
19:47:14.795 -> [D] AudioFaustDSP.h : 200 - info 8
19:47:14.829 -> [D] AudioFaustDSP.h : 200 - info 8
19:47:14.829 -> [D] AudioFaustDSP.h : 200 - info 8
19:47:14.829 -> [D] AudioFaustDSP.h : 200 - info 8
19:47:14.829 -> [D] AudioFaustDSP.h : 200 - info 12
19:47:14.829 -> [D] AudioFaustDSP.h : 200 - info 8
19:47:14.829 -> [D] AudioFaustDSP.h : 200 - info 8192
19:47:14.829 -> [D] AudioFaustDSP.h : 200 - info 8
19:47:14.829 -> [D] AudioFaustDSP.h : 200 - info 8
19:47:14.829 -> [D] AudioFaustDSP.h : 200 - info 8
19:47:14.829 -> [D] AudioFaustDSP.h : 200 - info 8192
19:47:14.863 -> [D] AudioFaustDSP.h : 200 - info 8
19:47:14.863 -> [D] AudioFaustDSP.h : 200 - info 8
19:47:14.863 -> [D] AudioFaustDSP.h : 200 - info 8192
19:47:14.863 -> [D] AudioFaustDSP.h : 200 - info 8
19:47:14.863 -> [D] AudioFaustDSP.h : 200 - info 8192
19:47:14.863 -> [D] AudioFaustDSP.h : 200 - info 8
19:47:14.863 -> [D] AudioFaustDSP.h : 200 - info 8
19:47:14.863 -> [D] AudioFaustDSP.h : 200 - info 8
19:47:14.863 -> [I] AudioFaustDSP.h : 212 - use PSRAM: false
19:47:14.863 -> [D] AudioFaustDSP.h : 220 - allocate 172
19:47:14.863 -> [D] AudioFaustDSP.h : 220 - allocate 8
19:47:14.898 -> [D] AudioFaustDSP.h : 220 - allocate 8
19:47:14.898 -> [D] AudioFaustDSP.h : 220 - allocate 8
19:47:14.898 -> [D] AudioFaustDSP.h : 220 - allocate 8
19:47:14.898 -> [D] AudioFaustDSP.h : 220 - allocate 8
19:47:14.898 -> [D] AudioFaustDSP.h : 220 - allocate 8
19:47:14.898 -> [D] AudioFaustDSP.h : 220 - allocate 12
19:47:14.898 -> [D] AudioFaustDSP.h : 220 - allocate 8
19:47:14.898 -> [D] AudioFaustDSP.h : 220 - allocate 8192
19:47:14.898 -> [D] AudioFaustDSP.h : 220 - allocate 8
19:47:14.898 -> [D] AudioFaustDSP.h : 220 - allocate 8
19:47:14.898 -> [D] AudioFaustDSP.h : 220 - allocate 8
19:47:14.932 -> [D] AudioFaustDSP.h : 220 - allocate 8192
19:47:14.932 -> [D] AudioFaustDSP.h : 220 - allocate 8
19:47:14.932 -> [D] AudioFaustDSP.h : 220 - allocate 8
19:47:14.932 -> [D] AudioFaustDSP.h : 220 - allocate 8192
19:47:14.932 -> [D] AudioFaustDSP.h : 220 - allocate 8
19:47:14.932 -> [D] AudioFaustDSP.h : 220 - allocate 8192
19:47:14.932 -> [D] AudioFaustDSP.h : 220 - allocate 8
19:47:14.932 -> [D] AudioFaustDSP.h : 220 - allocate 8
19:47:14.932 -> [D] AudioFaustDSP.h : 220 - allocate 8
19:47:14.966 -> [D] AudioFaustDSP.h : 220 - allocate 16
19:47:14.966 -> [D] AudioFaustDSP.h : 220 - allocate 262144
19:47:14.966 -> [E] AudioFaustDSP.h : 229 - allocate 262144 bytes - failed
19:47:14.966 -> Guru Meditation Error: Core  1 panic'ed (StoreProhibited). Exception was unhandled.
19:47:14.966 -> 
19:47:14.966 -> Core  1 register dump:
19:47:14.966 -> PC      : 0x400d4bb8  PS      : 0x00060e30  A0      : 0x800d5823  A1      : 0x3ffb26b0  
19:47:14.966 -> A2      : 0x00000000  A3      : 0x3ffb938c  A4      : 0x00000000  A5      : 0x00040000  
19:47:15.000 -> A6      : 0x3ffc1788  A7      : 0x00000000  A8      : 0x00000001  A9      : 0x3ffb2680  
19:47:15.000 -> A10     : 0x00000000  A11     : 0x00040000  A12     : 0x3ffba7e0  A13     : 0x3ffb939c  
19:47:15.000 -> A14     : 0x00000003  A15     : 0x00000001  SAR     : 0x00000004  EXCCAUSE: 0x0000001d  
19:47:15.000 -> EXCVADDR: 0x00000000  LBEG    : 0x400872b1  LEND    : 0x400872c1  LCOUNT  : 0xfffffff8  
19:47:15.034 -> 
19:47:15.034 -> 
19:47:15.034 -> Backtrace:0x400d4bb5:0x3ffb26b00x400d5820:0x3ffb26e0 0x400d59ae:0x3ffb2710 0x400d687a:0x3ffb2820 
19:47:15.034 -> 
19:47:15.034 -> 
19:47:15.034 -> 
19:47:15.034 -> 
19:47:15.034 -> ELF file SHA256: 0000000000000000
19:47:15.034 -> 
19:47:15.034 -> Rebooting...

[pschatzmann]

Some Faust Sketches are using more RAM than what we have available on an ESP32 which has just a few 100kbytes.
Therefore it is recommended to use a ESP32 which has PSRAM! e.g. a ESP-WROVER-B

See https://github.com/pschatzmann/arduino-audio-tools/wiki/Faust

[KazanskiyMaks]

OK, I'll buy a new board to test this, but anyway thank you.