kabwW

Choose 2 from 4 USB to UART CH340E

Overview

Supports UART to USB, microUSB, Type-C, available for personal testing

Design Files

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Update:2025-06-23 15:14:51

Why are multiple register access instructions needed?
[size=4]ldr/str can only access 4 bytes of memory per cycle. If you need to read or write memory in batches, it is too slow. The solution is stm/ld[/size] [size=4]For example (uboot start.S line 537)
Hardware I2C debugging issues based on STM8s library functions
I have written an I2C code based on the STM8s library function, and encountered a problem. When reading data, after the timing resends the start signal, the SDA line is always low. I don’t know how to
Why doesn't the scroll bar move?
The same code has no problem under vc6.0, but there is no response in evc scroll bar. Why is that?
PIC Keying Program
What's wrong with my keying program? Why is RA3 never 1? Can anyone help me figure it out? Thanks! void main(void) {init_usart();TRISA= 0xCC;TRISB= 0x00;TRISC= 0Xc0; //RC7 is RX, set as inputTXREG='';
Modelsim 6.2 compiles xilinx library and reports an error
[table][tr][td]Compiling Xilinx HDL Libraries for ModelSim SE Simulator Language => verilog Backing up setup files if any... Source Tools ('AUTO_DETECT') => [null] ERROR:CAEInterfaces:326 - COMPXLIB[e
《Reprint》 Husband's Diary
Husband's Diary (A Very Simple Husband - -) (Reprinted) >> > ※ My wife is away on a business trip for a week >> > 1. My wife was away on a business trip yesterday, so she was not home today. No dinner

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