Please refer to the PL2303TA PCN, Datasheet, and Migration Guide for more information.Supports the following Windows OS Family: Windows 2000 SP4 Windows XP SP2 and above (32 64 bit) Windows Server 2003 (32 64 bit) Windows Vista (32 64 bit) Windows 7 (32 64 bit) Windows Server 2008 2008 R2 (32 64 bit).USB 1.12.03.0 Host Controller.Device using PL-2303HHXX version chips.
Device using Prolific next-gen version chips (Codename EATATB). Pl2303 Chip Datasheet Driver Will NotEither because it is old either because it is detected as not genuine, the latest driver will not work. Get the right driver for this chip to make it work on Windows 10. Since the board will be plugged into a PCB, I choose the Arduino Pro Mini compatible design, which is just the MCU with a few external parts that are required for proper functionality. This means that in order to program this board, I needed such a converter. All I own were CH340G with Tx and Rx lines only and the CH341A programmer locked to 5 V levels. The price of such a converter is not a problem, but having to wait for a month or so to be delivered is a problem. I remembered I had some old USB phone cables with included USB-RS232 converter so I decided to make my own adapter to program the 3.3 V Pro Mini board. Pl2303 Chip Datasheet Download To BoardBesides that, DTR signal is wired to MCU reset, triggering the bootloader to allow data download to board. The pin exists at the chip, but it is not wired to the pinheader. Soldering a wire directly to the DTR pin chip could be a valid option, but I didnt want to modify the adapter. Pl2303 Chip Datasheet Serial Port IsThe recommended adapter which matches pin to pin with Arduino Pro Mini serial port is based on FT232 and CP2102. I dont know what voltage levels those two use or if they have a level switch. Knowing this, I opened the plastic case across the old phone cable. To my luck, it contained something that looked like a rather generic PL-2303 PCB with pads on two opposite sides, for the USB port and for the serial port. More than that I found out it used 3.3 V levels (the chip includes 5 V to 3.3 V regulator and supports 1.8 V to 3.3 V signal levels). The internal 3.3 V regulator can supply no more than 4 mA, so it wasnt an option to power the development board from it. Instead, the 5 V USB voltage, passed through a small value resistor, was available at the other end of the cable. On the right side, there is the TTL serial port, with the following configuration. Second, on the red wire, there are 5 V, not 3.3 V and the third is that RxD is pulled up to 5 V. Next step was to build the connector for the development board. I used a small piece of raw circuit board and I cut the copper to make some simple tracks. This piece of circuit must also hold a voltage regulator (1117-3.3). This thing is small enough and it can be included in a heat shrink tube. CTS is an input pin and I connected it next to GND, in the same way it is on CP2102FT232 boards. On Pro Mini board, that pin is GND, so it doesnt make a difference if you connect it or not. The bad thing is that I still found some USB serial cables with this chip version in local stores.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |