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0x0001b_ctf/include/console.h

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+// MIT License
+//
+// Copyright (c) 2026 Kevin Thomas
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+//
+// Author:  Kevin Thomas
+// Email:   kevin@mytechnotalent.com
+// GitHub:  https://github.com/mytechnotalent
+// File:    console.h
+// Desc:    Declares the UART console banner and status reporting interface
+//          for Operation Black Start.
+// Created: 2026
+
+#ifndef CONSOLE_H
+#define CONSOLE_H
+
+#include "grid.h"
+#include <stdio.h>
+
+/**
+ * @brief Print the response controller's boot identity and unconditional signal line.
+ *
+ * Emits the boot banner, operation window, serial configuration banner,
+ * unconditional signal quality line, and the interactive command prompt.
+ *
+ * @param None.
+ * @return None.
+ */
+static inline void print_boot_banner(void)
+{
+    printf("GLOBAL EMBEDDED RESPONSE NETWORK\r\n");
+    printf("BLACK START WINDOW: 27 MINUTES\r\n");
+    printf("UART0 115200 8N1 | AUTHORIZED LAB CONSOLE\r\n");
+    printf("SIGNAL: NORMAL\r\n");
+    printf("RESPONSE> ");
+}
+
+/**
+ * @brief Print the recurring grid classification and dispatch authorization report.
+ *
+ * Evaluates the current operator state and dispatch state flags and transmits
+ * the formatted status report over UART0 with the quarantined frame notification.
+ *
+ * @param None.
+ * @return None.
+ */
+static inline void print_status(void)
+{
+    printf("GRID STATUS: %s\r\n", operator_state ? "STABLE" : "CRITICAL");
+    printf("DISPATCH PATH: %s\r\n", dispatch_state ? "AUTHORIZED" : "HELD");
+    printf("LAST FRAME: QUARANTINED\r\n");
+    printf("RESPONSE> ");
+}
+
+#endif // CONSOLE_H

0x0001b_ctf/include/grid.h

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+// MIT License
+//
+// Copyright (c) 2026 Kevin Thomas
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+//
+// Author:  Kevin Thomas
+// Email:   kevin@mytechnotalent.com
+// GitHub:  https://github.com/mytechnotalent
+// File:    grid.h
+// Desc:    Declares the grid telemetry and safety evaluation interface for
+//          Operation Black Start.
+// Created: 2026
+
+#ifndef GRID_H
+#define GRID_H
+
+#include <stdint.h>
+
+// Safety margin (Hz deviation x100) below which grid frequency is tolerable.
+// BUG: emergency build miscompiled this far too permissive; correct value is 60.
+#define SAFE_THRESHOLD 95
+
+// Frozen grid frequency deviation reading latched when comms were severed.
+extern volatile uint32_t grid_deviation;
+
+// Operator-facing classification of the frozen reading (drives GRID STATUS).
+extern volatile uint32_t operator_state;
+
+// Automated dispatch authorization decision (drives DISPATCH PATH).
+extern volatile uint32_t dispatch_state;
+
+// Quarantined black-start authorization frame, retained in flash, never sent.
+static volatile const char dispatch_frame[] =
+    "WORLDGRID:BLACKSTART:GRID-7:WATER-3";
+
+static inline void retain_dispatch_frame(void)
+{
+    volatile char frame_marker = dispatch_frame[0];
+    (void)frame_marker;
+}
+
+static inline void evaluate_grid(void)
+{
+    operator_state = (grid_deviation < SAFE_THRESHOLD) ? 1 : 0;
+    dispatch_state = (grid_deviation < SAFE_THRESHOLD) ? 1 : 0;
+}
+
+/**
+ * @brief Anchor the hidden dispatch frame in flash without transmitting it.
+ *
+ * Reads the first character of the quarantined black-start authorization
+ * frame into a volatile local marker to prevent the compiler from optimizing
+ * out the string literal from .rodata flash storage.
+ *
+ * @param None.
+ * @return None.
+ */
+/**
+ * @brief Classify the frozen telemetry reading against the compiled threshold.
+ *
+ * Evaluates the frozen grid deviation reading against SAFE_THRESHOLD twice,
+ * once for the operator-facing status line and once for the automated
+ * dispatch decision, mirroring the duplicated immediate comparison site.
+ *
+ * @param None.
+ * @return None.
+ */
+#endif // GRID_H