Add Phase 0 RS-232 characterization harness and test firmware with cli

src/main.c

@@ -1,54 +1,20 @@
-#include <stdint.h>
-
+#include "driver/uart.h"
+#include "esp_console.h"
 #include "esp_err.h"
 #include "esp_log.h"
 #include "esp_psram.h"
-#include "freertos/FreeRTOS.h"
-#include "freertos/task.h"
-#include "led_strip.h"
-#include "led_strip_rmt.h"
+#include "rs232_hw_test.h"
+#include "status_led.h"
 
-#ifndef RGB_LED_GPIO
-#define RGB_LED_GPIO 48
-#endif
+#define CONSOLE_BAUD_RATE 115200
+#define CONSOLE_TX_GPIO 43
+#define CONSOLE_RX_GPIO 44
 
-#define RGB_LED_COUNT 1
-#define RGB_LED_BRIGHTNESS 32
-#define FADE_STEP_DELAY_MS 20
-
-static const char *TAG = "rgb_smoke_test";
-
-static led_strip_handle_t configure_rgb_led(void)
-{
-    const led_strip_config_t strip_config = {
-        .strip_gpio_num = RGB_LED_GPIO,
-        .max_leds = RGB_LED_COUNT,
-        .led_model = LED_MODEL_WS2812,
-        .color_component_format = LED_STRIP_COLOR_COMPONENT_FMT_GRB,
-        .flags = {
-            .invert_out = false,
-        },
-    };
-
-    const led_strip_rmt_config_t rmt_config = {
-        .clk_src = RMT_CLK_SRC_DEFAULT,
-        .resolution_hz = 10 * 1000 * 1000,
-        .mem_block_symbols = 0,
-        .flags = {
-            .with_dma = false,
-        },
-    };
-
-    led_strip_handle_t strip = NULL;
-    ESP_ERROR_CHECK(led_strip_new_rmt_device(&strip_config, &rmt_config, &strip));
-    ESP_ERROR_CHECK(led_strip_clear(strip));
-
-    return strip;
-}
+static const char *TAG = "phase0";
 
 void app_main(void)
 {
-    ESP_LOGI(TAG, "ESP32-S3 build-chain smoke test started");
+    ESP_LOGI(TAG, "ESP32-S3 RS-232 Phase 0 hardware characterization started");
 
     if (esp_psram_is_initialized()) {
         ESP_LOGI(TAG, "PSRAM initialized: %u bytes", (unsigned int)esp_psram_get_size());
@@ -56,19 +22,32 @@ void app_main(void)
         ESP_LOGW(TAG, "PSRAM is not initialized");
     }
 
-    led_strip_handle_t strip = configure_rgb_led();
-    ESP_LOGI(TAG, "Sweeping the onboard RGB LED on GPIO%d", RGB_LED_GPIO);
+    /* Blue means that the test harness is initialized and waiting for a command. */
+    ESP_ERROR_CHECK(status_led_init());
+    ESP_ERROR_CHECK(rs232_hw_test_init());
 
-    while (true) {
-        for (uint16_t hue = 0; hue < 360; ++hue) {
-            ESP_ERROR_CHECK(led_strip_set_pixel_hsv(
-                strip,
-                0,
-                hue,
-                UINT8_MAX,
-                RGB_LED_BRIGHTNESS));
-            ESP_ERROR_CHECK(led_strip_refresh(strip));
-            vTaskDelay(pdMS_TO_TICKS(FADE_STEP_DELAY_MS));
-        }
-    }
+    esp_console_repl_config_t repl_config = ESP_CONSOLE_REPL_CONFIG_DEFAULT();
+    repl_config.prompt = "rs232-test> ";
+    repl_config.max_cmdline_length = 160;
+    repl_config.task_stack_size = 8192;
+
+    /*
+     * UART0 remains dedicated to development and diagnostics. The external
+     * RS-232 data path uses UART1 on GPIO17/18 and cannot disturb this REPL.
+     */
+    esp_console_dev_uart_config_t uart_config = ESP_CONSOLE_DEV_UART_CONFIG_DEFAULT();
+    uart_config.channel = UART_NUM_0;
+    uart_config.baud_rate = CONSOLE_BAUD_RATE;
+    uart_config.tx_gpio_num = CONSOLE_TX_GPIO;
+    uart_config.rx_gpio_num = CONSOLE_RX_GPIO;
+
+    esp_console_repl_t *repl = NULL;
+    ESP_ERROR_CHECK(esp_console_new_repl_uart(&uart_config, &repl_config, &repl));
+
+    /* The REPL constructor initializes esp_console and installs `help`. */
+    ESP_ERROR_CHECK(rs232_hw_test_register_console_commands());
+    ESP_ERROR_CHECK(esp_console_start_repl(repl));
+
+    ESP_LOGI(TAG, "Interactive test console ready at %d baud", CONSOLE_BAUD_RATE);
+    ESP_LOGI(TAG, "Type 'help' for commands; no test runs automatically");
 }