Merge pull request #378 from ambraglow/master

Add support for Syldra development board

Author: hathach

src/boards/syldra/board.cmake

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+set(MCU_VARIANT nrf52840)

src/boards/syldra/board.h

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+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2026 Ambraglow
+ *
+ * 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.
+ */
+
+#ifndef _SYLDRA_H
+#define _SYLDRA_H
+
+//------------------------------------------------------------------//
+// LED
+//------------------------------------------------------------------//
+#define LEDS_NUMBER             1
+#define LED_PRIMARY_PIN         PINNUM(0, 17) // AD10 LED
+#define LED_STATE_ON            1
+
+//------------------------------------------------------------------//
+// BUTTON
+//------------------------------------------------------------------//
+#define BUTTON_DFU     PINNUM(0, 24) // AD20 -- DFU
+#define BUTTON_DFU_OTA PINNUM(1, 00) // AD22 -- OTA
+
+#define BUTTON_PULL             NRF_GPIO_PIN_PULLUP
+
+//-------------------------------------------------------------------//
+// BLE OTA
+//-------------------------------------------------------------------//
+#define BLEDIS_MANUFACTURER     "Ambraglow-&-localcc"
+#define BLEDIS_MODEL            "Syldra_dev_r1"
+
+//--------------------------------------------------------------------+
+// USB - using test PIDs
+//--------------------------------------------------------------------+
+#define USB_DESC_VID           0x1209
+#define USB_DESC_UF2_PID       0x0001
+#define USB_DESC_CDC_ONLY_PID  0x7A01
+
+#define UF2_PRODUCT_NAME        "Syldra nrf52840 Development Board"
+#define UF2_VOLUME_LABEL        "Syldra-boot"
+#define UF2_BOARD_ID            "nRF52840-Syldra-dev-v1"
+#define UF2_INDEX_URL           "https://github.com/ambraglow/nonorf"
+
+#endif

src/boards/syldra/board.mk

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+MCU_SUB_VARIANT = nrf52840
+SD_NAME = s140

src/boards/syldra/pinconfig.c

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+#include "boards.h"
+#include "uf2/configkeys.h"
+
+__attribute__((used, section(".bootloaderConfig")))
+const uint32_t bootloaderConfig[] =
+{
+  /* CF2 START */
+  CFG_MAGIC0, CFG_MAGIC1,                       // magic
+  5, 100,                                       // used entries, total entries
+
+  204, 0x100000,                                // FLASH_BYTES = 0x100000
+  205, 0x40000,                                 // RAM_BYTES = 0x40000
+  208, (USB_DESC_VID << 16) | USB_DESC_UF2_PID, // BOOTLOADER_BOARD_ID = USB VID+PID, used for verification when updating bootloader via uf2
+  209, 0xada52840,                              // UF2_FAMILY = 0xada52840
+  210, 0x20,                                    // PINS_PORT_SIZE = PA_32
+
+  0, 0, 0, 0, 0, 0, 0, 0
+  /* CF2 END */
+};