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Howdy!
Just experiment with the ch552 this morning ...
lsusb returns
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root…
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### Issue
The current CH554E_HostDevBoard doesn't fit in memory when its compiled as-is.
When the example is built on Ubuntu 22 with sdcc 4.2.0 using the `make` command, the following output is o…
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Thanks for sharing this promising work of yours.
In short, with CH551/CH552/CH554/CH559, checksum have to be calculated from the first 4 bytes of chip's UID.
it seem 'device_type == 0x11' is the…
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I can not flash my CH554 with this tool
```
python -m ch55xtool -f C:\Users\Gigabyte\Documents\Keil\CH554EXAM\USB\U_DISK\EXAM1\EXAM1.bin -r
Found CH554.
BTVER: V2.31.
Failed to flash firmware of …
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The latest version supports other flashing tools.
https://github.com/Blinkinlabs/ch554_sdcc/pull/22#issuecomment-667529008
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Hiya,
There's a comment in main.c that asks:
```
* According to SDCC specification, interrupt handlers MUST be placed within the file which contains
* the void main(void) function, otherw…
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按照GitHub记录2个月前更新的源码，似乎找不到任何关于非控制端点数据发送接收的代码片段。如何才能办到？
eeyrw updated
5 years ago
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Hi rgwan,
I made an Android App for the CH55x Chips to flash them via Android USB OTG.
Right now i made an update to Support V2.31 Bootloader's it is tested with the CH552G and until now the CH…
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i tried the code. connection detected and started to receive pd messages on cc1 pin (P1.4). Yet no gpip interrupts received. The cc1 signal swings between 0 to 1V only and wonder if it is too low to g…
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又来了 -、-
使用template改了一份87键配置 主要是832 改成 810 灯都注释 留了大小锁定 和 滚动锁定 修改了配列 引脚号 电源监测引脚号
config.h
```c
#pragma once
#include
/* USB和蓝牙的显示参数 */
#define VENDOR_ID 0x04d9 /* USB VID */
#define PRODU…