USB programmable converter based on CH32X033

Using CDC (USB) connection you can

programmatically control interfaces

Current commands

When the device is connected via USB, by connecting a terminal, you can get help on using the control commands. At the end of each command there must be a CR (0x0D) symbol.

[help]

outputs information about possible commands.

[print]

outputs the current configuration settings

[helpuart]

commands for configuring the UART interface:

[helpspi]

shows list of commands for configuring the SPI interface:

[helpi2c]

shows list of commands for configuring the UART interface:

[SAVE]

saves the current setting to the flash. On the next powrt connection of the device, this configuration will be automatic activated.

[SET:UART.DIS]

makes the UART interface unused.

[SET:UART.DIS]

activates the UART interface.

[SET:UART.BAUD=<int value>]

Sets the communication speed for the UART interface. must be a value from 1200 to 2500000 baud per second.

Example: [SET:UART.BAUD=57600] - sets the communication speed to 57600.

[SET:SPI.PRESC=<char value>]

set the base clock prescaler:

BASE CLOCK = 48MHz /(2 << PRESC );

[SET:SPI.BAUD=<char value>]

makes division of base clock (see PRESC) with value:

0 divede by 2,
1 divide by 4,
2 divide by 8,
3 divide by 16,
4 divide by 32,
5 divide by 54,
6 divide by 128,
7 divide by 256.

[SET:SPI.DIS]

makes the SPI interface unused.

[SET:SPI.DIS]

activates the SPI interface.

[SET:SPI.CPOL=<char val>]

set up the clock polarity (0 or 1);

[SET:SPI.CPHA=<char val>]

set up the clock phase (0 or 1);

[TRN:<dev src>-<dev dst>.EN/DIS]

allow or disallow to transwer between interfaces where and is:

CDC, UART, SPI or I2C;

for example:

[TRN:CDS-UART.EN] - allow a trafik from CDS to UART.

[TRN:UART-UART.EN] - allow a trafik from UART to CDS.

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