Ch341 Ftdi Serial Port Such

Ch341 Ftdi Serial Port Such

The VCP driver emulates a standard PC serial port such that the USB device may be communicated with as a standard RS232 device.

The D2XX driver allows direct access to a USB device via a DLL interface.

So suppose youve got an SPI flash on the board which normally talks to the microcontroller that the FT232H is there to talk with via serial.

The chip on this board is an FTDI FT232RL, and costs about two dollars in quantity.

While you can buy a USB to serial adapter with a legitimate chip, Syonyk found a cheaper solution: buy the counterfeit adapters, a few genuine chips, and rework the PCB.

Its brilliant, and an excellent display of desoldering prowess.

This bricked a whole bunch of devices, and was generally regarded as a bad move.

FTDIgate Mk. 2 was a variation on a theme where the FTDI driver would inject garbage data into a circuit if a non-genuine part was found.

Notwithstanding driver issues, the best reason for swapping out fake chips for real ones is the performance at higher bit rates; Syonyk is doing work at 3 Mbps, and the fake chips just dont work that fast.

A bit of solder braid, and the board was ready for the genuine chip.

If you really need the features of the FTDI chip (like the bitbang mode) then buy a board with genuine chip.

If you dont (and most people dont), then just go for one of the above and be done with it and you will still save money.

They are equally well (or better) supported than the old FTDI chip that doesnt use a standard CDC class driver.

The datasheet mentions that the CBUS Bit Bang must be enabled in eeprom.

Though with the FT232H and FT4222H I cant seems to transfer faster than 2.4 MbS in SPI despite the promise of the datasheet.

Its not a good plug-and-play device as they are frequently not detected properly when plugged into a USB port.

My recommendation is to stay away from the 2200 and use the real FTDI part or look at Silicon Labs for an alternate.

That being said, I havent had many problems with it and its cheap.

However, I built a diagnostic tool that used it, and our vendor in China couldnt get to work at all.

I would say 50 of the time it wouldnt be detected by their PC.

They arewere sold slightly cheaper than actual PIC18F14K50 chips.

The question is whether theyre fully working PIC18F14K50 chips or whether theyre chips that failed the tests but enough of it works to be a MCP2200.

Every board out there is 5 more with a ftdi chip minimum and the chip is maybe 2.

FTDI is a scam in my opinion even with the modicrum of features the official chip has over the fakes.

The CP2104 is just about as good (except for crappy GPIO support, but it does have GPIOs at least).

Why cant people work on cloning those to try to drive the price down.

Ch341 Ftdi Driver