can module CP2102 be reprogramed ?

Using Arduino Microcontrollers
1

hello compañeros.

My usb B is not detected by my computer but turn on my board.

i tried:

  1. install driver for silab 210X
  2. install driver arduino.
  3. replaced USB module.
  4. try in different pc

i guess that module cp2102 needs to be reprogramed

How could be the problem?? it'll be necessary reprogram the module?

my board is a triogorila based arduino Mega + ramps 1.4

2

Was it ever working, or has it always not been detected?

Make sure the USB cable is fully inserted into the board and your computer.

Try a different USB cable. Your cable might be damaged, defective, or charge-only. If the data lines are not connected, but the power lines are connected, that can cause the symptoms you describe (board is powered, but no serial port).

3

it was working, but when upgrate firmware a try to reconnect and i dosnt works anymore.

i test cable in arduino uno and works.

:c

4

I didn't know that the CP2102 had firmware. WOW. What news.

::slight_smile:

.

5

The CP2102 is a self contained, no external xtal etc., "hardware" USB to Serial bridge and does not use firmware, at least not programmable. It is 3.3V operating.

It has a 1K onboard EEPROM which can be programmed with custom Vendor ID (VID), Product ID (PID), Product Description String, PowerDescriptor, Device Release Number and Device Serial Number as desired for OEM applications. It does come with a default set of values which do not NEED to be changed. (It seems to be recommended, however, for OEM use).

As such, I doubt reprogramming the values will effect its functionality.

I use the CP2104 which has an EPROM which can be programmed for various ancillary options (like enabling TX/RX LEDS). It can, however, only be programmed once - no mistakes allowed.

Willem.

6

@javix70

Just in case you did not enable the USB. Notice at the start of the video.

7

The CP2102 is programmable using Silabs Simplicity Studio. I've changed the VID/PID of the chip, activated on of its GPIOs to so it can drive an RS485 transceiver directly. It's quite easy, and is done in a graphical environment :slight_smile:

8

When is CP2102Core coming out hansibull? :stuck_out_tongue:

9

Not so much “re-programmed” as “re-configured”?

10

pert:
When is CP2102Core coming out hansibull? :stuck_out_tongue:

Well, they (Silabs) do actually have a command-line interface for batch programming that I've used. So in theory, it should be possible to at least create an Arduino core that lets you load different binary files to it. However, I wouldn't bother :stuck_out_tongue:

westfw:
Not so much “re-programmed” as “re-configured”?

Exactly!