Official firmware 官方固件

Choose a release, set your flash options, and keep the serial monitor open while Sticky comes back to life. 选择版本、设置烧录参数，并在 Sticky 重启运行时保留串口监视器。

Step 1 步骤 1

Version and setup 版本与准备

Firmware source 固件来源 Firmware version 固件版本

Install the official Seeedash-ready firmware for reTerminal Sticky, pulled straight from the latest build. 安装适配 Seeedash 的 reTerminal Sticky 官方固件，直接从最新编译版本拉取。

Step 2 步骤 2

Flash to device 烧录到设备

Merged releases write the full image from 0x0. Older partitioned releases can use Erase flash + flash for a full restore. 合并固件版本会从 0x0 写入完整镜像。旧版分区固件可用擦除后烧录做完整恢复。

Flash device 烧录设备 0%

Connect your reTerminal Sticky with a USB data cable first.

.fpack System Font Package

This tool exports one .fpack package containing the current project-compatible V2.2 indexed font data used by the firmware custom loader. All integers are little-endian. Character coverage is limited to BMP codepoints U+0000 to U+FFFF.

Package Layout
Magic = FNTB. Version = 1. Entry count = 3.
Each directory entry stores size, offset, and length, followed by raw V2.2 font data for 18, 30, and 44 px.

V2.2 Font Layout
Header = 138 bytes. Each glyph record = 24 bytes.
Bitmap blob = packed 1bpp rows appended after the glyph table.

Placement Fields
advance moves the cursor after the glyph is drawn.
x_offset shifts bitmap placement horizontally from the cursor x.
y_offset is the project-specific vertical placement value.

Firmware draw rule: draw_x = cursor_x + x_offset draw_y = line_top + font_height - bitmap_h - y_offset

Header (138 bytes)

Offset	Size	Field	Type
0	4	char_count	uint32 LE
4	2	requested_size	uint16 LE
6	2	font_height	uint16 LE
8	1	version	uint8 (= 22)
9	1	marker	uint8 (= 0xA2)
10	64	family_name	UTF-8, zero-padded
74	64	style_name	UTF-8, zero-padded

Glyph Record (24 bytes, V2.2)

Offset	Size	Field	Type
0	2	unicode	uint16 LE
2	2	advance	uint16 LE
4	2	bitmap_w	uint16 LE
6	2	bitmap_h	uint16 LE
8	2	x_offset	int16 LE
10	2	y_offset	int16 LE
12	4	bitmap_offset	uint32 LE
16	4	bitmap_size	uint32 LE
20	4	reserved	uint32 LE

Bitmap Encoding
1bpp, row-by-row, MSB-first, each byte inverted (~value), last byte masked.
Device decodes as Packed1BitForegroundIsZero — bit=0 is foreground ink.

Official firmware 官方固件

Version and setup 版本与准备

Flash to device 烧录到设备

Conversion parameters 转换参数

Preview & export 预览与导出