Flash mode is wrong identified with the API call

[Jason2866]

Board

All ESP32x boards supporting Flash mode qio

Device Description

Not relevant

Hardware Configuration

nothing connected

Version

v2.0.4

IDE Name

Platformio (custom self build)

Operating System

macOS 12.5

Flash frequency

80

PSRAM enabled

no

Upload speed

115200

Description

Calling the API to get flash mode info gives the result dio which is wrong when device is really running in mode qio The info is fetched from magic byte in firmware.

arduino-esp32/cores/esp32/Esp.cpp

Line 326 in 8ee5f0a

FlashMode_t EspClass::getFlashChipMode(void)

Thx @s-hadinger for "finding" the corresponding code in Arduino

Used flash mode is activated from 2nd stage bootloader as can be seen here:

Build:Feb  7 2021
rst:0x1 (POWERON),boot:0xc (SPI_FAST_FLASH_BOOT)
SPIWP:0xee
mode:DIO, clock div:1
load:0x3fcd5810,len:0x1278
load:0x403cc710,len:0xb9c
load:0x403ce710,len:0x2b50
SHA-256 comparison failed:
Calculated: f526bbbf3f0d384062c796362385b439c9aa329972519fc8905554dff52750c9
Expected: ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
Attempting to boot anyway...
entry 0x403cc710
I (48) boot: ESP-IDF v4.4.3-145-g9ce849ce72 2nd stage bootloader
I (49) boot: compile time 11:08:46
I (49) boot: chip revision: 3
I (49) boot_comm: chip revision: 3, min. bootloader chip revision: 0
I (55) qio_mode: Enabling default flash chip QIO
I (59) boot.esp32c3: SPI Speed      : 80MHz
I (63) boot.esp32c3: SPI Mode       : QIO
I (67) boot.esp32c3: SPI Flash Size : 4MB
I (71) boot: Enabling RNG early entropy source...
I (75) boot: Partition Table:
I (78) boot: ## Label            Usage          Type ST Offset   Length
I (84) boot:  0 nvs              WiFi data        01 02 00009000 00005000
I (90) boot:  1 otadata          OTA data         01 00 0000e000 00002000
I (97) boot:  2 safeboot         factory app      00 00 00010000 000d0000
I (103) boot:  3 app0             OTA app          00 10 000e0000 002d0000
I (110) boot:  4 spiffs           Unknown data     01 82 003b0000 00050000
I (117) boot: End of partition table
I (120) esp_image: segment 0: paddr=000e0020 vaddr=3c100020 size=375c0h (226752) map
I (127) esp_image: segment 1: paddr=001175e8 vaddr=3fc8cc00 size=02dfch ( 11772) load
I (135) esp_image: segment 2: paddr=0011a3ec vaddr=40380000 size=05c2ch ( 23596) load
I (144) esp_image: segment 3: paddr=00120020 vaddr=42000020 size=f41d4h (999892) map
I (150) esp_image: segment 4: paddr=002141fc vaddr=40385c2c size=06f40h ( 28480) load
I (159) esp_image: segment 5: paddr=0021b144 vaddr=50000010 size=00010h (    16) load
I (165) boot: Loaded app from partition at offset 0xe0000
I (170) boot: Disabling RNG early entropy source...

00:00:00.000-253/08 HDW: ESP32-C3 
00:00:00.010-252/07 UFS: FlashFS mounted with 288 kB free
00:00:00.024 CFG: Loaded from File, Count 32
00:00:00.068 BRY: Berry initialized, RAM used=4215 bytes
00:00:00.075 Project sonoff - Tasmota Version 12.0.2.4(UNIVERSAL)-2_0_5_dev(2022-08-16T13:35:38)
00:00:00.097 TAP: Loaded Tasmota App 'Partition_Wizard.tapp'
00:00:00.959 WIF: Connecting to AP1 Jason_Home_WLAN Channel 11 BSSId 00:A0:57:2A:BD:19 in mode 11n as sonoff-A44FC0-4032...
00:00:06.064 WIF: Connected
00:00:06.317 HTP: Web server active on sonoff-A44FC0-4032 with IP address 192.168.2.178

Sketch

Every sketch builded in flash mode qio
For example https://github.com/Jason2866/ESP32_Show_Info

Debug Message

Enable Bootlogging is sdkkonfig and compile the arduino libs with.


Build:Feb  7 2021
rst:0x1 (POWERON),boot:0xc (SPI_FAST_FLASH_BOOT)
SPIWP:0xee
mode:DIO, clock div:1
load:0x3fcd5810,len:0x1278
load:0x403cc710,len:0xb9c
load:0x403ce710,len:0x2b50
SHA-256 comparison failed:
Calculated: f526bbbf3f0d384062c796362385b439c9aa329972519fc8905554dff52750c9
Expected: ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
Attempting to boot anyway...
entry 0x403cc710
I (48) boot: ESP-IDF v4.4.3-145-g9ce849ce72 2nd stage bootloader
I (49) boot: compile time 11:08:46
I (49) boot: chip revision: 3
I (49) boot_comm: chip revision: 3, min. bootloader chip revision: 0
I (55) qio_mode: Enabling default flash chip QIO
I (59) boot.esp32c3: SPI Speed      : 80MHz
I (63) boot.esp32c3: SPI Mode       : QIO
I (67) boot.esp32c3: SPI Flash Size : 4MB
I (71) boot: Enabling RNG early entropy source...
I (75) boot: Partition Table:
I (78) boot: ## Label            Usage          Type ST Offset   Length
I (84) boot:  0 nvs              WiFi data        01 02 00009000 00005000
I (90) boot:  1 otadata          OTA data         01 00 0000e000 00002000
I (97) boot:  2 safeboot         factory app      00 00 00010000 000d0000
I (103) boot:  3 app0             OTA app          00 10 000e0000 002d0000
I (110) boot:  4 spiffs           Unknown data     01 82 003b0000 00050000
I (117) boot: End of partition table
I (120) esp_image: segment 0: paddr=000e0020 vaddr=3c100020 size=375c0h (226752) map
I (127) esp_image: segment 1: paddr=001175e8 vaddr=3fc8cc00 size=02dfch ( 11772) load
I (135) esp_image: segment 2: paddr=0011a3ec vaddr=40380000 size=05c2ch ( 23596) load
I (144) esp_image: segment 3: paddr=00120020 vaddr=42000020 size=f41d4h (999892) map
I (150) esp_image: segment 4: paddr=002141fc vaddr=40385c2c size=06f40h ( 28480) load
I (159) esp_image: segment 5: paddr=0021b144 vaddr=50000010 size=00010h (    16) load
I (165) boot: Loaded app from partition at offset 0xe0000
I (170) boot: Disabling RNG early entropy source...

00:00:00.000-253/08 HDW: ESP32-C3 
00:00:00.010-252/07 UFS: FlashFS mounted with 288 kB free
00:00:00.024 CFG: Loaded from File, Count 32
00:00:00.068 BRY: Berry initialized, RAM used=4215 bytes
00:00:00.075 Project sonoff - Tasmota Version 12.0.2.4(UNIVERSAL)-2_0_5_dev(2022-08-16T13:35:38)
00:00:00.097 TAP: Loaded Tasmota App 'Partition_Wizard.tapp'
00:00:00.959 WIF: Connecting to AP1 Jason_Home_WLAN Channel 11 BSSId 00:A0:57:2A:BD:19 in mode 11n as sonoff-A44FC0-4032...
00:00:06.064 WIF: Connected
00:00:06.317 HTP: Web server active on sonoff-A44FC0-4032 with IP address 192.168.2.178Build:Feb  7 2021
rst:0x1 (POWERON),boot:0xc (SPI_FAST_FLASH_BOOT)
SPIWP:0xee
mode:DIO, clock div:1
load:0x3fcd5810,len:0x1278
load:0x403cc710,len:0xb9c
load:0x403ce710,len:0x2b50
SHA-256 comparison failed:
Calculated: f526bbbf3f0d384062c796362385b439c9aa329972519fc8905554dff52750c9
Expected: ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
Attempting to boot anyway...
entry 0x403cc710
I (48) boot: ESP-IDF v4.4.3-145-g9ce849ce72 2nd stage bootloader
I (49) boot: compile time 11:08:46
I (49) boot: chip revision: 3
I (49) boot_comm: chip revision: 3, min. bootloader chip revision: 0
I (55) qio_mode: Enabling default flash chip QIO
I (59) boot.esp32c3: SPI Speed      : 80MHz
I (63) boot.esp32c3: SPI Mode       : QIO
I (67) boot.esp32c3: SPI Flash Size : 4MB
I (71) boot: Enabling RNG early entropy source...
I (75) boot: Partition Table:
I (78) boot: ## Label            Usage          Type ST Offset   Length
I (84) boot:  0 nvs              WiFi data        01 02 00009000 00005000
I (90) boot:  1 otadata          OTA data         01 00 0000e000 00002000
I (97) boot:  2 safeboot         factory app      00 00 00010000 000d0000
I (103) boot:  3 app0             OTA app          00 10 000e0000 002d0000
I (110) boot:  4 spiffs           Unknown data     01 82 003b0000 00050000
I (117) boot: End of partition table
I (120) esp_image: segment 0: paddr=000e0020 vaddr=3c100020 size=375c0h (226752) map
I (127) esp_image: segment 1: paddr=001175e8 vaddr=3fc8cc00 size=02dfch ( 11772) load
I (135) esp_image: segment 2: paddr=0011a3ec vaddr=40380000 size=05c2ch ( 23596) load
I (144) esp_image: segment 3: paddr=00120020 vaddr=42000020 size=f41d4h (999892) map
I (150) esp_image: segment 4: paddr=002141fc vaddr=40385c2c size=06f40h ( 28480) load
I (159) esp_image: segment 5: paddr=0021b144 vaddr=50000010 size=00010h (    16) load
I (165) boot: Loaded app from partition at offset 0xe0000
I (170) boot: Disabling RNG early entropy source...

00:00:00.000-253/08 HDW: ESP32-C3 
00:00:00.010-252/07 UFS: FlashFS mounted with 288 kB free
00:00:00.024 CFG: Loaded from File, Count 32
00:00:00.068 BRY: Berry initialized, RAM used=4215 bytes
00:00:00.075 Project sonoff - Tasmota Version 12.0.2.4(UNIVERSAL)-2_0_5_dev(2022-08-16T13:35:38)
00:00:00.097 TAP: Loaded Tasmota App 'Partition_Wizard.tapp'
00:00:00.959 WIF: Connecting to AP1 Jason_Home_WLAN Channel 11 BSSId 00:A0:57:2A:BD:19 in mode 11n as sonoff-A44FC0-4032...
00:00:06.064 WIF: Connected
00:00:06.317 HTP: Web server active on sonoff-A44FC0-4032 with IP address 192.168.2.178

### Other Steps to Reproduce

_No response_

### I have checked existing issues, online documentation and the Troubleshooting Guide

- [X] I confirm I have checked existing issues, online documentation and Troubleshooting guide.

[Jason2866]

@VojtechBartoska This is a Arduino IDE issue, not Platformio. The code in Arduino does not work as it should.
PR #7141 is not related too.

[VojtechBartoska]

ah, okay. Edited. I did too quick check, sorry :)

[Jason2866]

This demo sketch has solutions to show real flash size and flash mode. The values are NOT fetched from the header (magic bytes). Thx for the solution goes to @Staars and @TD-er

EDIT: Changed the code example, since it crashed for the S2. This is fixed now.

#include <Arduino.h>
#include "soc/spi_reg.h"

#if CONFIG_IDF_TARGET_ESP32
  #include "esp32/rom/spi_flash.h"
#elif CONFIG_IDF_TARGET_ESP32S2  // ESP32-S2
  #include "esp32s2/rom/spi_flash.h"
#elif CONFIG_IDF_TARGET_ESP32S3  // ESP32-S3
  #include "esp32s3/rom/spi_flash.h"
#elif CONFIG_IDF_TARGET_ESP32C3  // ESP32-C3
  #include "esp32c3/rom/spi_flash.h"
#endif

#if CONFIG_IDF_TARGET_ESP32S3 || CONFIG_IDF_TARGET_ESP32C3
  #ifndef REG_SPI_BASE
  #define REG_SPI_BASE(i)     (DR_REG_SPI1_BASE + (((i)>1) ? (((i)* 0x1000) + 0x20000) : (((~(i)) & 1)* 0x1000 )))
  #endif // REG_SPI_BASE
#endif // TARGET


String ESP_getFlashChipMode(void) {
#if CONFIG_IDF_TARGET_ESP32S2
const uint32_t spi_ctrl = REG_READ(PERIPHS_SPI_FLASH_CTRL);
#else
const uint32_t spi_ctrl = REG_READ(SPI_CTRL_REG(0));
#endif
/* Not all of the following constants are already defined in older versions of spi_reg.h, so do it manually for now*/
if (spi_ctrl & BIT(24)) { //SPI_FREAD_QIO
    return F("QIO");
} else if (spi_ctrl & BIT(20)) { //SPI_FREAD_QUAD
    return F("QOUT");
} else if (spi_ctrl &  BIT(23)) { //SPI_FREAD_DIO
    return F("DIO");
} else if (spi_ctrl & BIT(14)) { // SPI_FREAD_DUAL
    return F("DOUT");
} else if (spi_ctrl & BIT(13)) { //SPI_FASTRD_MODE
    return F("Fast");
} else {
    return F("Slow");
}
return F("DOUT");
}

uint32_t ESP_getFlashChipId(void)
{
  uint32_t id = g_rom_flashchip.device_id;
  id = ((id & 0xff) << 16) | ((id >> 16) & 0xff) | (id & 0xff00);
  return id;
}

uint32_t ESP_getFlashChipRealSize(void)
{
  uint32_t id = (ESP_getFlashChipId() >> 16) & 0xFF;
  return 2 << (id - 1);
}

void setup() {

  Serial.begin(115200);
  ps_malloc(550 * 1024);
  uint8_t * buf = (uint8_t*)malloc(500 * 1024);
  if (buf == NULL)
    Serial.println("can't allocate memory with malloc\n");

    Serial.print("ESP32 SDK: "); Serial.println(ESP.getSdkVersion());
    Serial.print("ESP32 CPU FREQ: "); Serial.print(getCpuFrequencyMhz()); Serial.println(" MHz");
    Serial.print("ESP32 XTAL FREQ: "); Serial.print(getXtalFrequencyMhz()); Serial.println(" MHz");
    Serial.print("ESP32 APB FREQ: "); Serial.print(getApbFrequency() / 1000000.0, 1); Serial.println(" MHz");
    Serial.print("ESP32 FLASH CHIP ID: "); Serial.println(ESP_getFlashChipId());
    Serial.print("ESP32 FLASH REAL SIZE: "); Serial.print(ESP_getFlashChipRealSize() / (1024.0 * 1024), 2); Serial.println(" MB");
    Serial.print("ESP32 FLASH SIZE (MAGIC BYTE): "); Serial.print(ESP.getFlashChipSize() / (1024.0 * 1024), 2); Serial.println(" MB");
    Serial.print("ESP32 FLASH REAL MODE: "); Serial.println(ESP_getFlashChipMode());
    Serial.print("ESP32 FLASH MODE (MAGIC BYTE): "); Serial.print(ESP.getFlashChipMode()); Serial.println(", 0=QIO, 1=QOUT, 2=DIO, 3=DOUT");
    Serial.print("ESP32 RAM SIZE: "); Serial.print(ESP.getHeapSize() / 1024.0, 2); Serial.println(" KB");
    Serial.print("ESP32 FREE RAM: "); Serial.print(ESP.getFreeHeap() / 1024.0, 2); Serial.println(" KB");
    Serial.print("ESP32 MAX RAM ALLOC: "); Serial.print(ESP.getMaxAllocHeap() / 1024.0, 2); Serial.println(" KB");
    Serial.print("ESP32 FREE PSRAM: "); Serial.print(ESP.getFreePsram() / 1024.0, 2); Serial.println(" KB");
}

void loop() {
}

@me-no-dev I have opened PR #7159 for real Flash Size. Can you include the change for getting the real used flash mode?