# Connecting CJMCU-2232 FT2232HL

#### bibble235

Joined May 29, 2018
6
Hi

I am having trouble connecting a FT2322HL to my ESP32. I have followed instructions from the site which said

GPIO12 - AD1 (TDI)
GPIO15 - AD2 (TDO)
GPIO13 - AD0 (TCK)
GPIO14 - AD3 (TMS)
GND - GND

Using two USB leads on my PC and the device was detected.

Code:
Nov 28 11:37:04 OLIVER kernel: [866817.408763] usb 3-1: Product: Dual RS232-HS
Nov 28 11:37:04 OLIVER kernel: [866817.408765] usb 3-1: Manufacturer: FTDI
Nov 28 11:37:04 OLIVER kernel: [866817.409369] ftdi_sio 3-1:1.0: FTDI USB Serial Device converter detected
Nov 28 11:37:04 OLIVER kernel: [866817.409399] usb 3-1: Detected FT2232H
Nov 28 11:37:04 OLIVER kernel: [866817.409504] usb 3-1: FTDI USB Serial Device converter now attached to ttyUSB1
Nov 28 11:37:04 OLIVER kernel: [866817.409642] ftdi_sio 3-1:1.1: FTDI USB Serial Device converter detected
My problem is I believe I have blown up two of these. When plugging in the PC I get.

Code:
Nov 28 11:49:35 OLIVER kernel: [867568.310952] usb 3-1: device not accepting address 83, error -71
Nov 28 11:49:35 OLIVER kernel: [867568.311006] usb usb3-port1: unable to enumerate USB device
Nov 28 11:49:35 OLIVER kernel: [867568.570923] usb 3-1: new high-speed USB device number 84 using xhci_hcd
Nov 28 11:49:36 OLIVER kernel: [867568.698911] usb 3-1: device descriptor read/64, error -71
Nov 28 11:49:36 OLIVER kernel: [867568.934904] usb 3-1: device descriptor read/64, error -71 Nov 28 11:49:36 OLIVER kernel: [867569.170858] usb 3-1: new high-speed USB device number 85 us
With two board blown I would be keen to understand how people would normal do this. Or if I am doing something wrong and it is not the leads. I am new to this so do not know the best approach but happy to learn from people who do.

Question from again, a novice are
1/ Is there a better way to connect five wires more securely
2/ Is there a standard way to guard the live pins aside from insulation tape
3/ Can I still connect without the usb via another usb board I have.
4/ What is the best site to buy parts from as I am in NZ

This is an image of the devices

An this is the site I used
Site Used

#### Wolframore

Joined Jan 21, 2019
2,487
Please post a picture of how you connected your devices including your specific ESP32

#### Wolframore

Joined Jan 21, 2019
2,487
Does this help?

#### bibble235

Joined May 29, 2018
6
Yes seen this. And I did not connect either the 3V3 or the VCC (Not sure what VCC is but it sounded like power). I powered mine using the USB cable. for Me I connected as above A0-A3 only

#### Wolframore

Joined Jan 21, 2019
2,487
do you have close up pictures of each module so we can check for pins connections?

#### Wolframore

Joined Jan 21, 2019
2,487
A few suggestions while waiting for verification

1. plug the ESP32 board into the breadboard, by doing this you will eliminate one set of jumpers reducing wire length and possible connection issue.

2. read through the instructions about replacing the driver for FTDI

3. verify that you have working devices isolate problem ones and identify what the problem is, if any

looks like you have what you need, just need to work out the issue, whether hardware or software.

#### atferrari

Joined Jan 6, 2004
4,517
Take your pictures if possible, in the open with daylight, but not under sunshine. Play different options to get the best.