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firmware/esp32-hello-world: ESP32-C6 target and ESP-IDF v6 build fixes (#524)
- Default sdkconfig.defaults to esp32c6 - Fix removed SOC_* macros for ESP-IDF v6; probe_peripherals split for S3 vs C6. - Banner and WiFi/BLE/power strings are target-aware; add CHIP_ESP32C6 name. - Ignore esp32-hello-world/sdkconfig.old from idf.py set-target. Signed-off-by: Chaitanya Tata <chaitanya@dotstarconsulting.com> Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
Chaitanya Tata
@@ -13,6 +13,9 @@ firmware/esp32-csi-node/managed_components/
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firmware/esp32-csi-node/dependencies.lock
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firmware/esp32-csi-node/sdkconfig.defaults.bak
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# ESP-IDF set-target backup (local only)
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firmware/esp32-hello-world/sdkconfig.old
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# Claude Flow swarm runtime state
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.swarm/
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@@ -1,4 +1,4 @@
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# ESP32-S3 Hello World — Capability Discovery
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# ESP32 Hello World — Capability Discovery (S3 / C6 targets)
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cmake_minimum_required(VERSION 3.16)
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include($ENV{IDF_PATH}/tools/cmake/project.cmake)
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@@ -1,11 +1,11 @@
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/**
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* @file main.c
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* @brief ESP32-S3 Hello World — Full Capability Discovery
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* @brief ESP32 Hello World — Full Capability Discovery
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*
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* Boots up, prints "Hello World!", then probes and reports every major
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* hardware/software capability of the ESP32-S3: chip info, flash, PSRAM,
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* WiFi (including CSI), Bluetooth, GPIOs, peripherals, FreeRTOS stats,
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* and power management features. No WiFi connection required.
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* Boots up, prints "Hello World!", then probes chip info, flash, PSRAM,
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* WiFi (including CSI where enabled), 802.15.4/BLE on C6, GPIOs,
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* peripherals, FreeRTOS stats, and power management. No WiFi connection
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* required. Supports ESP32-S3 and ESP32-C6 (set IDF target accordingly).
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*/
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#include <stdio.h>
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@@ -18,7 +18,6 @@
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#include "esp_chip_info.h"
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#include "esp_flash.h"
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#include "esp_mac.h"
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#include "esp_log.h"
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#include "esp_wifi.h"
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#include "esp_event.h"
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#include "esp_timer.h"
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@@ -33,7 +32,24 @@
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#include "driver/temperature_sensor.h"
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#include "sdkconfig.h"
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static const char *TAG = "hello";
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/*
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* Peripheral counts: ESP-IDF v6+ dropped some SOC_* macros; values below
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* match each target's HAL (esp_hal_* *_ll.h) where applicable.
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*/
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#if CONFIG_IDF_TARGET_ESP32S3
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#define PROBE_I2S_CTRL_NUM 2
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#define PROBE_RMT_CHAN_NUM 8
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#define PROBE_MCPWM_GROUPS 2
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#define PROBE_PCNT_UNITS 4
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#define PROBE_TOUCH_CHAN_NUM ((int)(SOC_TOUCH_MAX_CHAN_ID - SOC_TOUCH_MIN_CHAN_ID + 1))
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#elif CONFIG_IDF_TARGET_ESP32C6
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#define PROBE_I2S_CTRL_NUM 1
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#define PROBE_RMT_CHAN_NUM 4
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#define PROBE_MCPWM_GROUPS 1
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#define PROBE_PCNT_UNITS 4
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#else
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#error "hello-world: add PROBE_* peripheral counts for this IDF target in main.c"
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#endif
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/* ── Helpers ─────────────────────────────────────────────────────────── */
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@@ -46,6 +62,7 @@ static const char *chip_model_str(esp_chip_model_t model)
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case CHIP_ESP32C3: return "ESP32-C3";
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case CHIP_ESP32H2: return "ESP32-H2";
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case CHIP_ESP32C2: return "ESP32-C2";
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case CHIP_ESP32C6: return "ESP32-C6";
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default: return "Unknown";
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}
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}
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@@ -168,7 +185,11 @@ static void probe_wifi_capabilities(void)
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ESP_ERROR_CHECK(esp_wifi_start());
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/* Protocol capabilities */
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#if CONFIG_IDF_TARGET_ESP32C6
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printf(" Protocols: 802.11 b/g/n/ax (Wi-Fi 6, 2.4 GHz)\n");
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#else
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printf(" Protocols: 802.11 b/g/n\n");
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#endif
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/* CSI (Channel State Information) */
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#ifdef CONFIG_ESP_WIFI_CSI_ENABLED
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@@ -246,7 +267,7 @@ static void probe_bluetooth(void)
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esp_chip_info(&info);
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if (info.features & CHIP_FEATURE_BLE) {
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printf(" BLE: Supported (Bluetooth 5.0 LE)\n");
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printf(" BLE: Supported (Bluetooth LE)\n");
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printf(" - GATT Server/Client\n");
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printf(" - Advertising & Scanning\n");
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printf(" - Mesh Networking\n");
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@@ -256,10 +277,16 @@ static void probe_bluetooth(void)
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printf(" BLE: Not supported on this chip\n");
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}
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#if CONFIG_IDF_TARGET_ESP32C6
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if (info.features & CHIP_FEATURE_IEEE802154) {
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printf(" 802.15.4: Supported (Thread / Zigbee style MAC)\n");
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}
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#endif
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if (info.features & CHIP_FEATURE_BT) {
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printf(" BT Classic: Supported (A2DP, SPP, HFP)\n");
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} else {
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printf(" BT Classic: Not available (ESP32-S3 is BLE-only)\n");
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printf(" BT Classic: Not available (BLE-only on this chip)\n");
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}
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}
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@@ -269,24 +296,52 @@ static void probe_peripherals(void)
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printf(" GPIOs: %d total\n", SOC_GPIO_PIN_COUNT);
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printf(" ADC:\n");
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#if CONFIG_IDF_TARGET_ESP32C6
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printf(" - SAR ADC: %d channels (12-bit, one controller)\n",
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(int)SOC_ADC_CHANNEL_NUM(0));
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#else
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printf(" - ADC1: %d channels (12-bit SAR)\n", SOC_ADC_CHANNEL_NUM(0));
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printf(" - ADC2: %d channels (shared with WiFi)\n", SOC_ADC_CHANNEL_NUM(1));
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printf(" DAC: Not available on ESP32-S3\n");
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printf(" Touch Sensors: %d channels (capacitive)\n", SOC_TOUCH_SENSOR_NUM);
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printf(" SPI: %d controllers (SPI2/SPI3 for user)\n", SOC_SPI_PERIPH_NUM);
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printf(" I2C: %d controllers\n", SOC_I2C_NUM);
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printf(" I2S: %d controllers (audio/PDM/TDM)\n", SOC_I2S_NUM);
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printf(" UART: %d controllers\n", SOC_UART_NUM);
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#endif
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printf(" DAC: Not available on this chip\n");
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#if CONFIG_IDF_TARGET_ESP32S3
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printf(" Touch Sensors: %d channels (capacitive)\n", PROBE_TOUCH_CHAN_NUM);
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#elif CONFIG_IDF_TARGET_ESP32C6
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printf(" Touch Sensors: Not available (no capacitive touch on ESP32-C6)\n");
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#endif
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printf(" SPI: %d controllers\n", SOC_SPI_PERIPH_NUM);
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#if CONFIG_IDF_TARGET_ESP32S3
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printf(" (SPI2/SPI3 typical for user apps)\n");
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#endif
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printf(" I2C: %d controllers\n", (int)SOC_I2C_NUM);
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printf(" I2S: %d controller(s) (audio/PDM/TDM)\n", PROBE_I2S_CTRL_NUM);
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printf(" UART: %d controllers\n", (int)SOC_UART_NUM);
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#if CONFIG_IDF_TARGET_ESP32S3
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printf(" USB: USB-OTG 1.1 (Host & Device)\n");
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printf(" USB-Serial: Built-in USB-JTAG/Serial (this console)\n");
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#elif CONFIG_IDF_TARGET_ESP32C6
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printf(" USB: No native USB-OTG (use SPI/USB bridge or off-chip PHY)\n");
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printf(" USB-Serial: Built-in USB Serial/JTAG (this console)\n");
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#endif
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#if CONFIG_IDF_TARGET_ESP32S3
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printf(" TWAI (CAN): 1 controller (CAN 2.0B compatible)\n");
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printf(" RMT: %d channels (IR/WS2812/NeoPixel)\n", SOC_RMT_TX_CANDIDATES_PER_GROUP + SOC_RMT_RX_CANDIDATES_PER_GROUP);
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#elif CONFIG_IDF_TARGET_ESP32C6
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printf(" TWAI (CAN): %d controller(s) (CAN 2.0B compatible)\n",
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(int)SOC_TWAI_CONTROLLER_NUM);
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#endif
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printf(" RMT: %d channels (IR/WS2812/NeoPixel)\n", PROBE_RMT_CHAN_NUM);
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printf(" LEDC (PWM): %d channels\n", SOC_LEDC_CHANNEL_NUM);
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printf(" MCPWM: %d groups (motor control)\n", SOC_MCPWM_GROUPS);
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printf(" PCNT: %d units (pulse counter / encoder)\n", SOC_PCNT_UNITS_PER_GROUP);
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printf(" MCPWM: %d group(s) (motor control)\n", PROBE_MCPWM_GROUPS);
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printf(" PCNT: %d units (pulse counter / encoder)\n", PROBE_PCNT_UNITS);
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#if CONFIG_IDF_TARGET_ESP32S3
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printf(" LCD: Parallel 8/16-bit + SPI + I2C interfaces\n");
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printf(" Camera: DVP 8/16-bit parallel interface\n");
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printf(" SDMMC: SD/MMC host controller (1-bit / 4-bit)\n");
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#elif CONFIG_IDF_TARGET_ESP32C6
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printf(" PARLIO: Parallel TX/RX (e.g. LED matrix / custom buses)\n");
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printf(" Camera: SPI / external bridge (no native DVP)\n");
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printf(" SDIO: SDIO slave peripheral (see TRM for capabilities)\n");
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#endif
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}
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static void probe_security(void)
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@@ -309,17 +364,29 @@ static void probe_power(void)
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{
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print_separator("POWER MANAGEMENT");
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#if CONFIG_IDF_TARGET_ESP32C6
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printf(" Clock Modes:\n");
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printf(" - 160 MHz (max CPU on ESP32-C6)\n");
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printf(" - 120 MHz (balanced)\n");
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printf(" - 80 MHz (low power)\n");
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#else
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printf(" Clock Modes:\n");
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printf(" - 240 MHz (max performance)\n");
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printf(" - 160 MHz (balanced)\n");
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printf(" - 80 MHz (low power)\n");
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#endif
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printf(" Sleep Modes:\n");
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printf(" - Modem Sleep (WiFi off, CPU active)\n");
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printf(" - Light Sleep (CPU paused, fast wake)\n");
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printf(" - Deep Sleep (RTC only, ~10 uA)\n");
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printf(" - Hibernation (RTC timer only, ~5 uA)\n");
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#if CONFIG_IDF_TARGET_ESP32C6
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printf(" Wake Sources: GPIO, LP timer, UART, etc.\n");
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printf(" LP domain: LP core / LP peripherals (see TRM)\n");
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#else
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printf(" Wake Sources: GPIO, timer, touch, ULP, UART\n");
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printf(" ULP Coprocessor: RISC-V + FSM (runs in deep sleep)\n");
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printf(" ULP Coprocessor: FSM (runs in deep sleep)\n");
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#endif
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}
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static void probe_temperature(void)
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@@ -389,6 +456,9 @@ static void probe_csi_details(void)
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void app_main(void)
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{
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esp_chip_info_t chip;
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esp_chip_info(&chip);
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/* NVS required for WiFi */
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esp_err_t ret = nvs_flash_init();
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if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
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@@ -401,7 +471,7 @@ void app_main(void)
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printf("\n");
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printf(" ╭─────────────────────────────────────────────────╮\n");
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printf(" │ │\n");
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printf(" │ HELLO WORLD from ESP32-S3! │\n");
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printf(" │ HELLO WORLD from %-24s │\n", chip_model_str(chip.model));
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printf(" │ │\n");
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printf(" │ WiFi-DensePose Capability Discovery v1.0 │\n");
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printf(" │ │\n");
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@@ -422,8 +492,9 @@ void app_main(void)
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probe_csi_details();
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print_separator("DONE — ALL CAPABILITIES REPORTED");
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printf("\n This ESP32-S3 is ready for WiFi-DensePose!\n");
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printf(" Flash the full firmware (esp32-csi-node) to begin CSI sensing.\n\n");
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printf("\n This %s is ready for WiFi-DensePose experiments.\n",
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chip_model_str(chip.model));
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printf(" For production CSI on S3, flash esp32-csi-node; C6 path may differ.\n\n");
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/* Keep alive — blink a status message every 10 seconds */
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int tick = 0;
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@@ -1,5 +1,5 @@
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# ESP32-S3 Hello World — SDK Configuration
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CONFIG_IDF_TARGET="esp32s3"
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# ESP32 Hello World — SDK Configuration (default: ESP32-C6)
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CONFIG_IDF_TARGET="esp32c6"
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# Flash: 4MB (this chip has Embedded Flash 4MB)
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CONFIG_ESPTOOLPY_FLASHSIZE_4MB=y
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