Gaviar Handheld (小志掌機)

司徒 LV 7

那司徒要幹嘛呢？CASIO CG-300 (Western Bar) 是司徒的人生第一台掌機，司徒相要幫它換裝一下，先看一下 PCB

背面

FPC

司徒依據走線補線，然後，要怎麼換裝呢？先賣個關子，等之後改好在分享給大家～哈

zb8321 LV 2

@steward 司徒大大您好，因不知联系方式抱歉在此讨教个问题：mbook m1这款机型遇到了跟您一样的情况，到手后可以启动但4个存储颗粒遭到物理破坏（拥有这款机型的人报废方式好奇怪）。看您尝试将m1颗粒移植到bx4上，因为我的电路板没有损坏迹象，想问下更换颗粒后是否还需量产/开卡，还是说主控可以自动识别。如果需要量产，能否给个相关软体和操作步骤。若不便在此展开，我的邮箱是jhangbai@gmail.com。最后感谢您网路知识分享，受益良多！！

RoseJay LV 1

zb8321 LV 2

@percival 你好，请问能否给D8的刷机包，我的症状跟你一模一样。D88的刷机包无法使用，虽然配置差不多但还是有差异。感谢！jhangbai@gmail.com

司徒 LV 7

@zb8321
在這邊討論就可以，我當初是直接換原本另一台可以正常使用的 NAND Flash，所以沒有量产/开卡的動作，開機後，BIOS 可以識別，不過，你應該可以直接焊上去，然後看 BIOS 有沒有辦法識別到你更換的容量，我當初並沒有下載使用量产/开卡的軟件

zb8321 LV 2

@steward 是这样，看您在网站上提到有嘗試更新SSD Firmware，于是才来请教是什么韧体。我只找到了这个主控cf卡的开卡工具，而这个板载的ssd看不出是否设计了跳线。打开开卡工具，短接损坏的颗粒开卡脚位也搜不到任何硬碟设备。由于本人没焊过sop48，所以没把握的话就只能选择usb方案了。我之前也是直插usb随身碟的方式把玩，就是速度感人。

司徒 LV 7

@zb8321
參考網址：https://steward-fu.github.io/website/umpc/bx407a4_usb.htm

不好意思，我記錯，那個 SM232 SSD Firmware 就是開卡軟件，我當初有使用，但是我的機器還是無法寫入，最後我才改用 USB 開機，只是當初沒有把軟件留下來，這樣看來你可以焊接試試，我當初的機器是很悽慘的，走線被割斷很多條

所以才使用替換法試試，使用吸錫線就可以很容易焊接成功，不行的話，你只能拿去手機行

zb8321 LV 2

@steward 吸锡线我记下了。我的情况应该比大大的要好点，这款机型的机主们宁愿拆机去破坏NAND也不舍得一锤子解决问题。另外您确定软体是sm223吗，因为这个主控是sm2231t，软体的话倒是sm223 sm2231都有见过
QQ图片20261004190422.png

司徒 LV 7

@zb8321
哈～我癡呆了，我記成 Onkyo BX407A4 機器，MBook M1 確實是 SM2231T，那就期待你的好消息～

zb8321 LV 2

@steward 感谢大大。我还以为这两个板型差不多呢，都是umid的，原来主控不同

司徒 LV 7

小志掌機的顯示驅動還是持續開發測試中，司徒剛好有時間來移植 FunKey-OS 裡面的 RetroFE 主介面，試試運行在小志掌機的顯示效果

$ cd
$ git clone https://github.com/FunKey-Project/RetroFE --depth=1
$ git clone https://github.com/FunKey-Project/FunKey-OS --depth=1 -b DrUm78

除了背景，前景圖片不要拉伸

diff --git a/RetroFE/Source/Graphics/PageBuilder.cpp b/RetroFE/Source/Graphics/PageBuilder.cpp
index 17451b5..ad20a97 100755
--- a/RetroFE/Source/Graphics/PageBuilder.cpp
+++ b/RetroFE/Source/Graphics/PageBuilder.cpp
@@ -203,8 +203,8 @@ Page *PageBuilder::buildPage( std::string collectionName )
                 return NULL;
             }
 
-            scaleX_ = (float)screenWidth_ / (float)layoutWidth;
-            scaleY_ = (float)screenHeight_ / (float)layoutHeight;
+            scaleX_ = 1;//(float)screenWidth_ / (float)layoutWidth;^M
+            scaleY_ = 1;//(float)screenHeight_ / (float)layoutHeight;^M
 
             std::stringstream ss;
             ss << layoutWidth << "x" << layoutHeight << " (scale " << scaleX_ << "x" << scaleY_ << ")";

修改資源路徑

diff --git a/RetroFE/Source/Menu/MenuMode.cpp b/RetroFE/Source/Menu/MenuMode.cpp
index 8cce5c7..0a33358 100755
--- a/RetroFE/Source/Menu/MenuMode.cpp
+++ b/RetroFE/Source/Menu/MenuMode.cpp
@@ -35,15 +35,15 @@
 #define MENU_BG_SQURE_WIDTH         180
 #define MENU_BG_SQUREE_HEIGHT       140
 
-#define MENU_FONT_NAME_TITLE        "/usr/games/menu_resources/OpenSans-Bold.ttf"
+#define MENU_FONT_NAME_TITLE        "/boot/RetroFE/menu_resources/OpenSans-Bold.ttf"
 #define MENU_FONT_SIZE_TITLE        22
-#define MENU_FONT_NAME_INFO         "/usr/games/menu_resources/OpenSans-Bold.ttf"
+#define MENU_FONT_NAME_INFO         "/boot/RetroFE/menu_resources/OpenSans-Bold.ttf"
 #define MENU_FONT_SIZE_INFO         16
-#define MENU_FONT_NAME_SMALL_INFO   "/usr/games/menu_resources/OpenSans-Regular.ttf"
+#define MENU_FONT_NAME_SMALL_INFO   "/boot/RetroFE/menu_resources/OpenSans-Regular.ttf"
 #define MENU_FONT_SIZE_SMALL_INFO   13
-#define MENU_PNG_BG_PATH            "/usr/games/menu_resources/zone_bg.png"
-#define MENU_PNG_ARROW_TOP_PATH     "/usr/games/menu_resources/arrow_top.png"
-#define MENU_PNG_ARROW_BOTTOM_PATH  "/usr/games/menu_resources/arrow_bottom.png"
+#define MENU_PNG_BG_PATH            "/boot/RetroFE/menu_resources/zone_bg.png"
+#define MENU_PNG_ARROW_TOP_PATH     "/boot/RetroFE/menu_resources/arrow_top.png"
+#define MENU_PNG_ARROW_BOTTOM_PATH  "/boot/RetroFE/menu_resources/arrow_bottom.png"

關閉聲音設定

diff --git a/RetroFE/Source/Utility/Utils.h b/RetroFE/Source/Utility/Utils.h
index b97612b..8018e3f 100755
--- a/RetroFE/Source/Utility/Utils.h
+++ b/RetroFE/Source/Utility/Utils.h
@@ -23,8 +23,8 @@
 #define SHELL_CMD_ROOTFS_RW             "rw"
 #define SHELL_CMD_ROOTFS_RO             "ro"
 #define SHELL_CMD_PID_RECORD            "pid record"
-#define SHELL_CMD_AUDIO_AMP_ON          "audio_amp on"
-#define SHELL_CMD_AUDIO_AMP_OFF         "audio_amp off"
+#define SHELL_CMD_AUDIO_AMP_ON          "" //audio_amp on"^M
+#define SHELL_CMD_AUDIO_AMP_OFF         "" //audio_amp off"^M
 #define SHELL_CMD_MAPPING_ROM           "keymap rom"
 #define SHELL_CMD_MAPPING_DEFAULT       "keymap default"

編譯

$ cd RetroFE
$ cmake \
    RetroFE/Source \
    -BRetroFE/Build \
    -DVERSION_MAJOR=0 \
    -DVERSION_MINOR=0 \
    -DVERSION_BUILD=0 \
    -DCMAKE_TOOLCHAIN_FILE=/opt/gaviar/share/buildroot/toolchainfile.cmake

$ cmake --build RetroFE/Build
$ file RetroFE/Build/retrofe 
    RetroFE/Build/retrofe: ELF 64-bit LSB pie executable, UCB RISC-V

複製到MicroSD

$ mkdir /xxx/SDCARD/RetroFE
$ cp RetroFE/Build/retrofe /xxx/SDCARD/RetroFE
$ cp -a ~/FunKey-OS/FunKey/board/funkey/rootfs-overlay/usr/games/* /xxx/SDCARD/RetroFE

修改設定

$ vim /xxx/SDCARD/RetroFE/settings.conf
    horizontal = 320
    baseItemPath=/boot/roms

開機後執行

$ mount -o remount,rw /boot
$ cd /boot/RetroFE
$ SDL_NOMOUSE=1 SDL_VIDEODRIVER=fbcon ./retrofe

完成

前景圖片沒有拉伸，看起來就是舒服～

P.S. 測試檔案 https://github.com/steward-fu/website/releases/download/gaviar/retrofe_test_20261011.img

司徒 LV 7

由於小志掌機是基於全志 F133，也就是 RISC-V 核心，因此，司徒無意間注意到一款相當迷你的 RISC-V 模擬器 (mini-rv32ima)，Repo 是 https://github.com/cnlohr/mini-rv32ima, 這款迷你 RISC-V 模擬器被移植到相當多的低階晶片上，例如：ESP32，參考的 Repo 有：https://github.com/kangz543g/ESP32C3_RV32IMA_LINUX, https://github.com/xhackerustc/uc-rv32ima, https://github.com/verylowfreq/linux_on_m5stack, 為此，司徒也想來試試這款模擬器的魅力～

mini-rv32ima

linux_on_m5stack

司徒的 ESP32-C3 開發板

腳位

司徒使用的 PSRAM64H

焊接完成

司徒焊接 PSRAM64H 的腳位資訊

PSRAM64H_MOSI   ESP32_GPIO_1
PSRAM64H_MISO   ESP32_GPIO_2
PSRAM64H_CS     ESP32_GPIO_9
PSRAM64H_SCLK   ESP32_GPIO_0

編譯

$ git clone https://github.com/xhackerustc/uc-rv32ima -b 3e062c59acf745b39be63b86a8e6afad71d27ce8
$ cd uc-rv32ima
$ idf.py set-target esp32c3
$ vim main/CMakeLists.txt
    target_compile_options(${COMPONENT_LIB} PRIVATE -w)
$ idf.py reconfigure
$ idf.py menuconfig
    Serial flasher config  ---> Flash size (4 MB)
    Component config → ESP System Settings → [] Enable Task Watchdog Timer

$ vim main/port-esp.c
    206 psram_write(addr, dmabuf, 64);
    213 psram_write(addr, dmabuf, flen);

$ vim main/port-esp.c
    43 #define GPIO_MOSI   1
    44 #define GPIO_MISO   2
    45 #define GPIO_CS     9
    46 #define GPIO_SCLK   0
    47 #define SPI_HOST_ID 1
    48 #define SPI_FREQ    80000000; // 80MHz

$ idf.py build
$ dtc -I dts -O dtb -o main/uc.dtb main/uc.dts

燒錄

$ esptool.py \
    --chip esp32c3 \
    -p /dev/ttyACM0 \
    -b 460800 \
    write_flash \
    0x10000 build/uc-rv32ima.bin \
    0x8000 build/partition_table/partition-table.bin \
    0x200000 main/Image \
    0x3ff000 main/uc.dtb

完成 (idf.py -p /dev/ttyACM0 monitor)

Executing action: monitor
Running idf_monitor in directory /home/steward/Downloads/uc-rv32ima
Executing "/home/steward/.espressif/tools/python/v5.3.6/venv/bin/python /home/steward/.espressif/v5.3.6/esp-idf/tools/idf_monitor.py -p /dev/ttyACM0 -b 115200 --toolchain-prefix riscv32-esp-elf- --target esp32c3 --revision 3 --decode-panic backtrace /home/steward/Downloads/uc-rv32ima/build/uc-rv32ima.elf -m '/home/steward/.espressif/tools/python/v5.3.6/venv/bin/python' '/home/steward/.espressif/v5.3.6/esp-idf/tools/idf.py' '-p' '/dev/ttyACM0'"...
--- esp-idf-monitor 1.10.0 on /dev/ttyACM0 115200
--- Quit: Ctrl+] | Menu: Ctrl+T | Help: Ctrl+T followed by Ctrl+H
ESP-ROM:esp32c3-eco7-20230720
Build:Jul 20 2023
rst:0x15 (USB_UART_CHIP_RESET),boot:0xf (SPI_FAST_FLASH_BOOT)
Saved PC:0x420093aa
--- 0x420093aa: cache_read at /home/steward/Downloads/uc-rv32ima/main/cache.c:113
SPIWP:0xee
mode:DIO, clock div:1
load:0x3fcd5820,len:0x1820
load:0x403cc710,len:0xbd0
load:0x403ce710,len:0x2f5c
entry 0x403cc71a
I (24) boot: ESP-IDF v5.3.6 2nd stage bootloader
I (24) boot: compile time Oct 11 2026 20:50:35
I (25) boot: chip revision: v1.1
I (27) boot: efuse block revision: v1.3
I (32) boot.esp32c3: SPI Speed      : 80MHz
I (37) boot.esp32c3: SPI Mode       : DIO
I (41) boot.esp32c3: SPI Flash Size : 4MB
I (46) boot: Enabling RNG early entropy source...
I (52) boot: Partition Table:
I (55) boot: ## Label            Usage          Type ST Offset   Length
I (62) boot:  0 nvs              WiFi data        01 02 00009000 00006000
I (70) boot:  1 phy_init         RF data          01 01 0000f000 00001000
I (77) boot:  2 factory          factory app      00 00 00010000 00100000
I (85) boot:  3 kernel           Unknown data     01 58 00200000 001ff000
I (92) boot:  4 dtb              Unknown data     01 58 003ff000 00001000
I (100) boot: End of partition table
I (104) esp_image: segment 0: paddr=00010020 vaddr=3c020020 size=0a214h ( 41492) map
I (119) esp_image: segment 1: paddr=0001a23c vaddr=3fc8f000 size=01a58h (  6744) load
I (122) esp_image: segment 2: paddr=0001bc9c vaddr=40380000 size=0437ch ( 17276) load
I (133) esp_image: segment 3: paddr=00020020 vaddr=42000020 size=163f0h ( 91120) map
I (153) esp_image: segment 4: paddr=00036418 vaddr=4038437c size=0abfch ( 44028) load
I (165) boot: Loaded app from partition at offset 0x10000
I (166) boot: Disabling RNG early entropy source...
I (177) cpu_start: Unicore app
I (186) cpu_start: Pro cpu start user code
I (186) cpu_start: cpu freq: 160000000 Hz
I (186) app_init: Application information:
I (189) app_init: Project name:     uc-rv32ima
I (194) app_init: App version:      3e062c5-dirty
I (199) app_init: Compile time:     Oct 11 2026 20:50:22
I (205) app_init: ELF file SHA256:  feb37fbbd...
I (210) app_init: ESP-IDF:          v5.3.6
I (215) efuse_init: Min chip rev:     v0.3
I (220) efuse_init: Max chip rev:     v1.99 
I (225) efuse_init: Chip rev:         v1.1
I (230) heap_init: Initializing. RAM available for dynamic allocation:
I (237) heap_init: At 3FC92B30 len 0002D4D0 (181 KiB): RAM
I (243) heap_init: At 3FCC0000 len 0001C710 (113 KiB): Retention RAM
I (250) heap_init: At 3FCDC710 len 0000294C (10 KiB): Retention RAM
I (257) heap_init: At 50000000 len 00001FE8 (7 KiB): RTCRAM
I (264) spi_flash: detected chip: generic
I (268) spi_flash: flash io: dio
I (272) sleep: Configure to isolate all GPIO pins in sleep state
I (279) sleep: Enable automatic switching of GPIO sleep configuration
I (286) main_task: Started on CPU0
I (286) main_task: Calling app_main()
psram init
I (286) gpio: GPIO[9]| InputEn: 0| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0 
SPI_HOST_ID = 1
spi_bus_initialize = 0
spi_bus_add_device = 0
PSRAM ID: 0d5d46a26412
loading kernel Image (1457036 bytes) from flash:200000 into psram:0
RV32IMA starting
[    0.000000] Linux version 6.9.0-rc1+ (zjs@xhacker) (riscv64-linux-gnu-gcc (Debian 13.2.0-12) 13.2.0, GNU ld (GNU Binutils for Debian) 2.42) #17 Tue Apr  2 10:40:39 CST 2024
[    0.000000] Machine model: riscv-minimal-nommu,qemu
[    0.000000] earlycon: uart8250 at MMIO 0x10000000 (options '1000000')
[    0.000000] printk: legacy bootconsole [uart8250] enabled
[    0.000000] Zone ranges:
[    0.000000]   Normal   [mem 0x0000000080000000-0x00000000807fffff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000080000000-0x00000000807fffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000080000000-0x00000000807fffff]
[    0.000000] Falling back to deprecated "riscv,isa"
[    0.000000] riscv: base ISA extensions aim
[    0.000000] riscv: ELF capabilities aim
[    0.000000] Kernel command line: earlycon=uart8250,mmio,0x10000000,1000000 console=ttyS0
[    0.000000] Dentry cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.000000] Inode-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.000000] Built 1 zonelists, mobility grouping off.  Total pages: 2032
[    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[    0.000000] Memory: 6620K/8192K available (939K kernel code, 77K rwdata, 109K rodata, 292K init, 29K bss, 1572K reserved, 0K cma-reserved)
[    0.000000] SLUB: HWalign=64, Order=0-1, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
[    0.000000] riscv-intc: 32 local interrupts mapped
[    0.000000] clint: clint@11000000: timer running at 1000000 Hz
[    0.000000] clocksource: clint_clocksource: mask: 0xffffffffffffffff max_cycles: 0x1d854df40, max_idle_ns: 3526361616960 ns
[    0.000000] sched_clock: 64 bits at 1000kHz, resolution 1000ns, wraps every 2199023255500ns
[    0.017927] Calibrating delay loop (skipped), value calculated using timer frequency.. 2.00 BogoMIPS (lpj=10000)
[    0.031068] pid_max: default: 4096 minimum: 301
[    0.052508] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.065767] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.415035] devtmpfs: initialized
[    0.760730] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.773442] futex hash table entries: 16 (order: -5, 192 bytes, linear)
[    1.238923] clocksource: Switched to clocksource clint_clocksource
[    2.157118] workingset: timestamp_bits=30 max_order=11 bucket_order=0
[    8.863810] Serial: 8250/16550 driver, 1 ports, IRQ sharing disabled
[    9.453665] of_serial 10000000.uart: error -6: IRQ index 0 not found
[    9.521361] printk: legacy console [ttyS0] disabled
[    9.652317] 10000000.uart: ttyS0 at MMIO 0x10000000 (irq = 0, base_baud = 1048576) is a XR16850
[    9.673529] printk: legacy console [ttyS0] enabled
[    9.673529] printk: legacy console [ttyS0] enabled
[    9.686691] printk: legacy bootconsole [uart8250] disabled
[    9.686691] printk: legacy bootconsole [uart8250] disabled
[   11.072719] clk: Disabling unused clocks
[   13.545355] Warning: unable to open an initial console.
[   13.703702] Freeing unused kernel image (initmem) memory: 292K
[   13.714396] This architecture does not have kernel memory protection.
[   13.723989] Run /init as init process
starting pid 19, tty '/dev/console': '/sbin/getty -L -n -l /bin/sh console 0 vt100'

~ # 
~ # free
                  total        used        free      shared  buff/cache   available
    Mem:           6912        1612        4768           0         532        4268
~ # cat /proc/version
    Linux version 6.9.0-rc1+ (zjs@xhacker) (riscv64-linux-gnu-gcc (Debian 13.2.0-12) 13.2.0, GNU ld (GNU Binutils for Debian) 2.42) #17 Tue Apr  2 10:40:39 CST 2024
~ # cat /proc/cpuinfo
    processor	: 0
    hart		: 0
    isa		: rv32ima_zicntr_zicsr_zifencei_zihpm
    mmu		: none
    mvendorid	: 0xff0ff0ff
    marchid		: 0x0
    mimpid		: 0x0
    hart isa	: rv32ima_zicntr_zicsr_zifencei_zihpm