Cctalk Serial Interface

The logic levels for the ccTalk line are 3.5 to 5V for mark state (idle ) and 0 to 1V for space state (active). This allows a low cost interface width 5V microcontrollers. Some dedicated gaming PC based platforms like have one or more built in ccTalk ports. Simple 5V microcontroller interface A normal switching diode can be used but the noise margin could be to low. The resistor can be in 1Kohm to 10Kohm range. If the Tx output is open colector you can connect together TX RX and data line without the diode. Also the resistor is not required if the slave has a pull up.

Aug 7, 2018 - Request for number serial coin acceptor, send string “AC4 r n”, the interface response 7 bytes number serial. Cctalk Serial Communication. CcTalk® PC Interface User Manual TSP076.doc Issue 1.0 – May 2003 This document is the private unpublished property of Money Controls Ltd and may not be reproduced in part or in total by any means, electronic or otherwise, without the written permission of Money Controls Ltd. Money Controls Ltd does.

Simple 3V microcontroller interface You can skip the diode if the microcontroller has internal protection diode. I know that the levels are not exactly by the book, the input low level for Pic microcontrollers is guaranteed at 0.15 VDD for CMOS inputs. 1V means 0.3VDD for 3.3 V and 0.2VDD for 5V but this worked for me flawlessly For PC there are many USB to RS232 TTL adapters available that can be used with the schematics above, search Google, they have 5V and 3.3V outputs. If you want a ready made ccTalk cable has one (pl2303 based) or you can find some more in “Usefull ccTalk links” page. There is also on youtube a video where is simply connecting TX and RX and data together, I doubt that the TX output is open collector the slave just force zero the output that acts also as a pull up when idle. This might reset your USB to serial chip if the output is stronger. Of course do not forget the official schematics from the ccTalk documentation, I don’t have their agreement to show them here but you can find them in page 82 to 85.

(Continues from last post) Looking completely to my questions in my last post and the “this guy” video in Youtube, what I understand is that: Attaching the only 1 data line of ccTalk device to a USB to TTL cable’s DATA IN (receieved) and DATA OUT (transmittted) cables is enough. But there appear two new questions: 1-The equipment in the video is a ccTalk coin acceptor which needs12 V to work. So the guy takes the energy from the PC’s board. But for a hopper which needs 24 V, 1 A minimum, it is impossible. OK, the answer my friend is blowing in the wind, it is easy, just use an external 24 V power supply.

But the guy atttaches the USB-TTL cable’s ground (black) to the PC board’s ground (black) cable. In that case should I attach the USB-TTL cable’s ground to the 24V external power supply’s ground? 2-It seems it is possible to work by connecting the only 1 data line of ccTalk equipment to a desktop PC’s 9 pin RS232 pins [(both) 2nd (tranmission) and 3rd (receiver)] and using an external 24 V power supply WITHOUT A USB TO TTL CABLE. (In that case there is no ‘where to connect the ground of USBtoTTL cable’ question, there is no USB cable or port in this scenerio) Like. I’m having trouble communicating with a Microcoin SP1. I used to use a PL2303HX USB to RS232 TTL converter very successfully (by using the simple connect TX and RX together approach), but this converter does not support windows 8 and above and I’ve been forced to upgrade to windows 10.

Reshebnik praktikum po matematike dlya podgotovki k ct fedorako. El matador pc iso torrent. Instead I’ve purchased the PL2303TA which does support windows 10 and to use this I’ve used your ‘Simple 5V microcontroller interface’. This works really well for transmitting, but I could not get a reply (strictly I got a garbled reply). Connecting up an oscilloscope, I found that in the the reply from the coin acceptor, the level is only being pulled down to 2v, not 0v. My electronics knowledge is very rusty (ie I’ve not done any for 25 years!), but I was kind of thinking that I need some sort of circuit to bring down the level at the coin acceptor end. Any suggestions at all?