Kompletter OTA Flash-Prozess mit Server (hab zwischencommits vergessen ups)

2026-05-15 23:33:10 +02:00
parent 5d9d3e205b
commit ad05cef1bf
16 changed files with 1797 additions and 0 deletions
@@ -0,0 +1,96 @@
+#include <stdio.h>
+#include <string.h>
+
+#include "pico/stdlib.h"
+#include "pico/cyw43_arch.h"
+#include "hardware/flash.h"
+#include "hardware/sync.h"
+
+// Test-Sektor: weit weg von allem anderen. Pico 2W hat 4 MB Flash.
+// 0xE0000 = 896 KB Offset. Wuerde im OTA-Layout knapp hinter der App liegen,
+// hier aber unbenutzt.
+#define TEST_FLASH_OFFSET 0xE0000u
+#define TEST_FLASH_ADDR   (XIP_BASE + TEST_FLASH_OFFSET)
+
+static void blink_forever(uint32_t on_ms, uint32_t off_ms) {
+    while (true) {
+        cyw43_arch_gpio_put(CYW43_WL_GPIO_LED_PIN, true);
+        sleep_ms(on_ms);
+        cyw43_arch_gpio_put(CYW43_WL_GPIO_LED_PIN, false);
+        sleep_ms(off_ms);
+    }
+}
+
+static void hexdump16(const uint8_t *p) {
+    for (int i = 0; i < 16; i++) {
+        printf("%02x ", p[i]);
+    }
+    printf("\n");
+}
+
+int main(void) {
+    stdio_init_all();
+    sleep_ms(3000);  // Host-Terminal Zeit zum Verbinden
+
+    if (cyw43_arch_init()) {
+        while (true) {
+            tight_loop_contents();
+        }
+    }
+
+    printf("\n=== flashwrite sanity test ===\n");
+    printf("Test-Sektor: XIP-Adresse 0x%08x (Flash-Offset 0x%05x)\n",
+           (unsigned)TEST_FLASH_ADDR, (unsigned)TEST_FLASH_OFFSET);
+    printf("FLASH_SECTOR_SIZE=%u  FLASH_PAGE_SIZE=%u\n",
+           (unsigned)FLASH_SECTOR_SIZE, (unsigned)FLASH_PAGE_SIZE);
+
+    const uint8_t *flash = (const uint8_t *)TEST_FLASH_ADDR;
+
+    printf("Vor erase:    ");
+    hexdump16(flash);
+
+    printf("Erase 4 KB...\n");
+    uint32_t irq = save_and_disable_interrupts();
+    flash_range_erase(TEST_FLASH_OFFSET, FLASH_SECTOR_SIZE);
+    restore_interrupts(irq);
+
+    printf("Nach erase:   ");
+    hexdump16(flash);
+
+    for (uint32_t i = 0; i < FLASH_SECTOR_SIZE; i++) {
+        if (flash[i] != 0xFF) {
+            printf("FEHLER: Erase unvollstaendig bei +%lu: 0x%02x\n", i, flash[i]);
+            blink_forever(50, 50);
+        }
+    }
+    printf("Erase verifiziert (alle 4096 Byte = 0xFF).\n");
+
+    uint8_t pattern[FLASH_PAGE_SIZE];
+    for (uint32_t i = 0; i < FLASH_PAGE_SIZE; i++) {
+        pattern[i] = (uint8_t)(i ^ 0x5A);
+    }
+
+    printf("Program 256 Byte...\n");
+    irq = save_and_disable_interrupts();
+    flash_range_program(TEST_FLASH_OFFSET, pattern, FLASH_PAGE_SIZE);
+    restore_interrupts(irq);
+
+    printf("Nach program: ");
+    hexdump16(flash);
+
+    if (memcmp(flash, pattern, FLASH_PAGE_SIZE) == 0) {
+        printf("ERFOLG: Pattern korrekt im Flash.\n");
+        printf("LED: schnelles Blinky 200/200.\n");
+        blink_forever(200, 200);
+    } else {
+        printf("FEHLER: Pattern-Mismatch.\n");
+        for (uint32_t i = 0; i < FLASH_PAGE_SIZE; i++) {
+            if (flash[i] != pattern[i]) {
+                printf("  Diff bei +%lu: got 0x%02x, expected 0x%02x\n",
+                       i, flash[i], pattern[i]);
+                break;
+            }
+        }
+        blink_forever(50, 50);
+    }
+}