Hi,
first - I am new to ESP32 / PlatformIO.
I designed a board with module ESP32-S3-WROOM-1-N16R8, samples made by JLCPCB.
The module order code (JLCPCB or LCSC) is C2913202.
It should contain 16MB Flash + 8 MB PSRAM.
I created a new project, with board=Espressif ESP32-S3-BOX
because according to description of this project
“ESP32-S3-BOX comes with 16MB of QSPI flash and 8MB of Octal PSRAM”.
So I thought it is based on the same module.
main.cpp is a copy of example
/platformio/platform-espressif32/blob/master/examples/espidf-hello-world/src/hello_world_main.c
I made litle changes to print detailed info about “features” via this block of code:
// Print chip information
esp_chip_info_t chip_info;
esp_chip_info(&chip_info);
printf("chip_info: features=0x%08X, cores=%u, revision=%u\n",
chip_info.features, chip_info.cores, chip_info.revision);
// particular features
printf("EMB_FLASH...%s\n", (chip_info.features & CHIP_FEATURE_EMB_FLASH) ? "Y" : "n");
// Chip has embedded flash memory
printf("WIFI_BGN....%s\n", (chip_info.features & CHIP_FEATURE_WIFI_BGN) ? "Y" : "n");
// Chip has 2.4GHz WiFi
printf("BLE.........%s\n", (chip_info.features & CHIP_FEATURE_BLE) ? "Y" : "n");
// Chip has Bluetooth LE
printf("BT..........%s\n", (chip_info.features & CHIP_FEATURE_BT) ? "Y" : "n");
// Chip has Bluetooth Classic
printf("IEEE802154..%s\n", (chip_info.features & CHIP_FEATURE_IEEE802154) ? "Y" : "n");
// Chip has IEEE 802.15.4, low-rate wireless personal area network (LR-WPAN)
printf("EMB_PSRAM...%s\n", (chip_info.features & CHIP_FEATURE_EMB_PSRAM) ? "Y" : "n");
// Chip has embedded psram
// show model name
printf("chip model=%u ", (unsigned char)chip_info.model);
if (chip_info.model == CHIP_ESP32) printf("ESP32\n"); // 1
else if (chip_info.model == CHIP_ESP32S2) printf("ESP32-S2\n"); // 2
else if (chip_info.model == CHIP_ESP32S3) printf("ESP32-S3\n"); // 9
else if (chip_info.model == CHIP_ESP32C3) printf("ESP32-C3\n"); // 5
else if (chip_info.model == CHIP_ESP32H2) printf("ESP32-H2\n"); // 6
else printf("unknown\n");
// show flash size
printf("%dMB %s flash\n", spi_flash_get_chip_size() / (1024 * 1024),
(chip_info.features & CHIP_FEATURE_EMB_FLASH) ? "embedded" : "external");
// show size of PSRAM
multi_heap_info_t info;
heap_caps_get_info(&info, MALLOC_CAP_SPIRAM);
long unsigned int sizePSRAM;
sizePSRAM = (long unsigned int)(info.total_free_bytes + info.total_allocated_bytes);
printf("PSRAM size = %lu\n", sizePSRAM);
(also combined with 2 tasks
- UART echo example:
/platformio/platform-espressif32/blob/master/examples/espidf-peripherals-uart/src/uart_echo_example_main.c - LED flashing)
It all works, important is, it prints:
chip_info: features=0x00000012, cores=2, revision=0
EMB_FLASH...n
WIFI_BGN....Y
BLE.........Y
BT..........n
IEEE802154..n
**EMB_PSRAM...n**
chip model=9 ESP32-S3
16MB external flash
**PSRAM size = 0**
The initial debug text ESP is (problematic lines highlighted):
ELF file SHA256: ddccacd149a73633
Rebooting…
ESP-ROM:esp32s3-20210327
Build:Mar 27 2021
rst:0xc (RTC_SW_CPU_RST),boot:0x29 (SPI_FAST_FLASH_BOOT)
Saved PC:0x403758c4
SPIWP:0xee
mode:DIO, clock div:1
load:0x3fcd0108,len:0x1648
load:0x403b6000,len:0xb7c
load:0x403ba000,len:0x2f74
SHA-256 comparison failed:
Calculated: ecd0239307e887b897a8687fd0c440d7911a2c55eb2a7916905ddd04eb8b1508
Expected: 094d10123a151508d62769f8aa43ccd31e5757064977a5c521168ba85be6acb5
Attempting to boot anyway…
entry 0x403b6248
I (47) boot: ESP-IDF 4.4.1 2nd stage bootloader
I (48) boot: compile time 20:26:11
I (48) boot: chip revision: 0
I (49) boot.esp32s3: Boot SPI Speed : 80MHz
I (54) boot.esp32s3: SPI Mode : DIO
I (59) boot.esp32s3: SPI Flash Size : 16MB
I (63) boot: Enabling RNG early entropy source…
I (69) boot: Partition Table:
I (72) boot: ## Label Usage Type ST Offset Length
I (80) boot: 0 nvs WiFi data 01 02 00009000 00006000
I (87) boot: 1 phy_init RF data 01 01 0000f000 00001000
I (95) boot: 2 factory factory app 00 00 00010000 00100000
I (102) boot: End of partition table
I (106) esp_image: segment 0: paddr=00010020 vaddr=3c020020 size=07ba8h ( 31656) map
I (121) esp_image: segment 1: paddr=00017bd0 vaddr=3fc90640 size=026fch ( 9980) load
I (125) esp_image: segment 2: paddr=0001a2d4 vaddr=40374000 size=05d44h ( 23876) load
I (137) esp_image: segment 3: paddr=00020020 vaddr=42000020 size=1774ch ( 96076) map
I (158) esp_image: segment 4: paddr=00037774 vaddr=40379d44 size=068f0h ( 26864) load
I (164) esp_image: segment 5: paddr=0003e06c vaddr=50000000 size=00010h ( 16) load
I (169) boot: Loaded app from partition at offset 0x10000
I (169) boot: Disabling RNG early entropy source…
I (186) cpu_start: Pro cpu up.
I (186) cpu_start: Starting app cpu, entry point is 0x40375454
I (151) cpu_start: App cpu up.
I (200) cpu_start: Pro cpu start user code
I (201) cpu_start: cpu freq: 160000000
I (201) cpu_start: Application information:
I (203) cpu_start: Project name: ESPs3b
I (208) cpu_start: App version: 1
I (213) cpu_start: Compile time: Sep 29 2022 20:25:10
I (219) cpu_start: ELF file SHA256: ddccacd149a73633…
I (225) cpu_start: ESP-IDF: 4.4.1
I (229) heap_init: Initializing. RAM available for dynamic allocation:
I (237) heap_init: At 3FC93760 len 0004C8A0 (306 KiB): D/IRAM
I (243) heap_init: At 3FCE0000 len 0000EE34 (59 KiB): STACK/DRAM
I (250) heap_init: At 3FCF0000 len 00008000 (32 KiB): DRAM
I (256) heap_init: At 600FE000 len 00002000 (8 KiB): RTCRAM
I (263) spi_flash: detected chip: gd
I (267) spi_flash: flash io: dio
I (271) sleep: Configure to isolate all GPIO pins in sleep state
I (277) sleep: Enable automatic switching of GPIO sleep configuration
I (285) cpu_start: Starting scheduler on PRO CPU.
I (0) cpu_start: Starting scheduler on APP CPU.
There is no single line about PSRAM or SPIRAM.
I found configuration file sdkconfig.esp32s3box
contains line: #CONFIG_ESP32S3_SPIRAM_SUPPORT is not set
so I added a line to platformio.ini that I hoped will fix it:
platformio.ini :
[env:esp32s3box]
platform = espressif32
board = esp32s3box
framework = espidf
monitor_speed = 115200
upload_port = COM12
monitor_port = COM12
build_flags = -D CONFIG_ESP32_SPIRAM_SUPPORT=1
also tried these lines, but no difference:
build_flags = -D CONFIG_ESP32S3_SPIRAM_SUPPORT=1
build_flags = -DBOARD_HAS_PSRAM -mfix-esp32-psram-cache-issue
So, why the PSRAM is not detected ?
I only guess problem is one of following:
a) wrong “board” selection - is there any better/correct choice ?
(I have also tried Board: Adafruit Feather ESP32-S3 2MB PSRAM, still no success with PSRAM)
b) the module really doesn’t contain PSRAM - how to recognise is reliably ?
(on the bottom of module is label M0N16R8)
c) maybe some other PlatformIO or esp-idf setting must be changed - what and how ?
Any ideas are welcome, or link to stuff I should study, or similar project that works.
