Problem including the library downloaded from Github

[ilker-aktuna]

I am following instructions to include the library on Arduino IDE. It displays as installed but then while compiling I get these errors:

In file included from c:\Users\ilker\Documents\Arduino\libraries\LilyGoEPD47\src\ed047tc1.c:6:
c:\Users\ilker\Documents\Arduino\libraries\LilyGoEPD47\src\ed047tc1.h:114:16: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'epd_output_row'
  114 | void IRAM_ATTR epd_output_row(uint32_t output_time_dus);
      |                ^~~~~~~~~~~~~~
c:\Users\ilker\Documents\Arduino\libraries\LilyGoEPD47\src\ed047tc1.h:119:16: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'epd_skip'
  119 | void IRAM_ATTR epd_skip();
      |                ^~~~~~~~
c:\Users\ilker\Documents\Arduino\libraries\LilyGoEPD47\src\ed047tc1.h:124:21: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'epd_get_current_buffer'
  124 | uint8_t * IRAM_ATTR epd_get_current_buffer();
      |                     ^~~~~~~~~~~~~~~~~~~~~~
c:\Users\ilker\Documents\Arduino\libraries\LilyGoEPD47\src\ed047tc1.h:132:16: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'epd_switch_buffer'
  132 | void IRAM_ATTR epd_switch_buffer();
      |                ^~~~~~~~~~~~~~~~~
c:\Users\ilker\Documents\Arduino\libraries\LilyGoEPD47\src\ed047tc1.c: In function 'fast_gpio_set_hi':
c:\Users\ilker\Documents\Arduino\libraries\LilyGoEPD47\src\ed047tc1.c:58:5: error: 'GPIO' undeclared (first use in this function)
   58 |     GPIO.out_w1ts = (1 << gpio_num);
      |     ^~~~
c:\Users\ilker\Documents\Arduino\libraries\LilyGoEPD47\src\ed047tc1.c:58:5: note: each undeclared identifier is reported only once for each function it appears in
c:\Users\ilker\Documents\Arduino\libraries\LilyGoEPD47\src\ed047tc1.c: In function 'fast_gpio_set_lo':
c:\Users\ilker\Documents\Arduino\libraries\LilyGoEPD47\src\ed047tc1.c:63:5: error: 'GPIO' undeclared (first use in this function)
   63 |     GPIO.out_w1tc = (1 << gpio_num);
      |     ^~~~
c:\Users\ilker\Documents\Arduino\libraries\LilyGoEPD47\src\i2s_data_bus.c: In function 'gpio_setup_out':
c:\Users\ilker\Documents\Arduino\libraries\LilyGoEPD47\src\i2s_data_bus.c:450:21: error: 'GPIO_PIN_MUX_REG' undeclared (first use in this function)
  450 |     PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[gpio], PIN_FUNC_GPIO);
      |                     ^~~~~~~~~~~~~~~~
c:\Users\ilker\Documents\Arduino\libraries\LilyGoEPD47\src\i2s_data_bus.c:450:21: note: each undeclared identifier is reported only once for each function it appears in
c:\Users\ilker\Documents\Arduino\libraries\LilyGoEPD47\src\i2s_data_bus.c:450:45: error: 'PIN_FUNC_GPIO' undeclared (first use in this function)
  450 |     PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[gpio], PIN_FUNC_GPIO);
      |                                             ^~~~~~~~~~~~~

so what's wrong ?

[lewisxhe]

Please check the readme file to reduce the ESP32 core version to below 3.0

[ilker-aktuna]

thank you. downgrading to 2.0.17 solved the issue with compiling. But after uploading the sketch device went into boot loop. I think that's because I used the esp32s3 version (how do I know which version I should use ?) now I am trying to upload non-s3 version but I get :

A fatal error occurred: Failed to connect to ESP32: Invalid head of packet (0x30): Possible serial noise or corruption.
For troubleshooting steps visit: https://docs.espressif.com/projects/esptool/en/latest/troubleshooting.html
Failed uploading: uploading error: exit status 2

and this is the boot loop:

00:44:24.789 -> Starting...
00:44:24.789 -> Memory alloc failed!
00:44:24.789 -> Guru Meditation Error: Core  1 panic'ed (StoreProhibited). Exception was unhandled.
00:44:24.789 -> 
00:44:24.789 -> Core  1 register dump:
00:44:24.822 -> PC      : 0x4008bacc  PS      : 0x00060c30  A0      : 0x800d35b2  A1      : 0x3ffb21a0  
00:44:24.822 -> A2      : 0x00000000  A3      : 0xffffffff  A4      : 0x0003f480  A5      : 0x00000000  
00:44:24.822 -> A6      : 0x00000001  A7      : 0x00003f48  A8      : 0x800e7050  A9      : 0x3ffb2170  
00:44:24.822 -> A10     : 0x00000002  A11     : 0x3f4013d5  A12     : 0x00000040  A13     : 0x00000001  
00:44:24.822 -> A14     : 0x00000044  A15     : 0x3ffb8a68  SAR     : 0x00000015  EXCCAUSE: 0x0000001d  
00:44:24.864 -> EXCVADDR: 0x00000000  LBEG    : 0x4008bacc  LEND    : 0x4008bad7  LCOUNT  : 0x00003f47  
00:44:24.864 -> 
00:44:24.864 -> 
00:44:24.864 -> Backtrace: 0x4008bac9:0x3ffb21a0 0x400d35af:0x3ffb21b0 0x400dca01:0x3ffb2210 0x400e9ef6:0x3ffb2290
00:44:24.864 -> 
00:44:24.864 -> 
00:44:24.864 -> 
00:44:24.864 -> 
00:44:24.864 -> ELF file SHA256: 4eed671fe7535a55
00:44:24.864 -> 
00:44:25.034 -> Rebooting...
00:44:25.034 -> ets Jul 29 2019 12:21:46

[lewisxhe]

Please follow the README indications that the option is correct, PSRAM is set to OPI

[ilker-aktuna]

Please follow the README indications that the option is correct, PSRAM is set to OPI

There is no OPI option in the Arduino IDE. Only "disabled" and "enabled" , and I have already selected "enabled" And I think my issue is not about PSRAM, I need toput the device in download mode. which one is the reset and boot buttons on this device ?

[ilker-aktuna]

the problem was fixed changing the JTAG adapter option on the IDE. Setting it to USB bridge solved the problem. Also the download mode of this device is triggered by: press S5+S6 buttons release S5 release S6 on serial console it says "waiting for download"