Matrix user forums

Hello, I know that in case of easy voltage dividing we use resistor series. Is it a good idea to use transistors to do that? What I mean , to use the 5V terminal to drive a transistor and then when the transistor switches it will allow 3.3V go through the "target" chip. Will that ensure that I will ...

Thanks Ben! That worked.

However, can the circular buffer example work as is on flowcode V4?

Thank you,

Best Regards

Hello Ben, I have tried the example you had the link to. It seems that I got it to work once but after I modified it then I got an error! Afterwards I download it again to check if the cause was my modification but even still I get the error at compiling. Can you take a look at the message attached?...

Hello Ben ,

Thanks for the reply..again..

Can you please tell me how to perform a dummy byte read?

When you say "UART receive interrupt" you mean the UART RXINT0?

Thank you,

Best Regards

Hello Ben, Thank you for the reply. The flow control pins of the module might have resistors to allow the flow control to be disabled if disconnected. The microcontroller's inputs will also float if disconnected allowing communications to flow. I do not quite understand! Never the less, so by floati...

Hello, I have 2 problems. :) 1. I have used the RS232 component and set it to use hardware flow control and while testing in real life ( I connected MCU and wifi module) I left UNCONNECTED the CTS / RTS pins and still the 2 devices were able to communicate? Any thoughts? ! 2. I am using the the rs23...

Hello, My flowcode routine for reading SPI data from wizfi250-EVB. The only thing is missing is a procedure to read the SPI_Data Ready Pin from the wifi module in order to notify MCU that data are ready. Do I have to do that? Can I just keep reading the SPI until data are ready? Currently I am using...

Hello Jac, Again, your help is precious! Thank you! I understand what you are saying. Regarding the data "stream" as I read on the Wizfi forum, the specific module can only send 1 byte at a time, so I will have to switch SS pin every time the slave sends a byte and I will use the local string buffer...

Hello Jac, I appreciate your time replying my post. Most of your explanations cleared a lot of things. I apologize having so many questions; it is just that I am not so much into coding, I rather work by flowcharts. "flowcode, no coding, no limits" seems there is a bit of a coding after all! :) 1. T...

The board is the following : wizfi250-evb http://wizwiki.net/wiki/doku.php?id=products:wizfi250:wizfi250qsg:start http://wizwiki.net/wiki/doku.php?id=products:wizfi250:wizfi250pg:start#at_mspi One can use the board's web browser to associate the module to your own Internet Modem and have it to serve...

Hello Jac, Thank you for you reply. The only documentation regarding SPI for my device , is to guide me set the rising/falling edge , clk idle on high or low , LSB or MSB first. What I am trying to do is to send data from an android app (TCP client app) to the wifi device and then read the data on t...

Hello Stuart, Do the commands involve a specific address on the slave? In case the slave needs to send to PIC 18F877A, what is the write or read address? Also I look at the properties of the SPI component and I see NVM, CDA enable, what is the CS pin? By saying channel number what we mean? Thank you...

Hello Stuart,

Thank you for replying.

I already connected the devices through UART and currently try to connect them through SPI.

Best Regards,

Andreas Achilleos

Hello Ben, 1 . I have tried the "circular buffer" example on my MCU, and AS IT IS; it works just fine, I send data from android app, I get them on MCU and then I get the reply from MCU. However I have noticed that if I take the routine and put it in a loop, in order to have constant communication be...

Hello, I am currently connecting an MCU with a wifi board through UART, Tx/Rx no hardware control. Then the MCU communicates with an android TCP client app. My question is : what is the best method to connect as above? UART/software control? Uart/hardware control? or SPI? What would be the differenc...

Hello Ben,

Thank you for your response.

Can I use those flowcode examples with flowcode V4?

Thank you,

Best Regards

Ben one last thing... I am currently testing the V6 flowcode, I was used to v4. I need some help with the RS232 macro properties. 1. If I need to receive a word such as: "hello" from my peer board talking to MCU, what would I choose; ( receiveChar or receiveString)? 2. What do I enter in the -Expres...

Thank you a lot Ben! I have a question though and I quote from the http://www.matrixtsl.com/blog/simplified-communications-i%C2%B2c-and-spi/ link you gave me One of the great upsides of the I²C bus is that it can do voltage level shifting for you. For example say we have a Master running at 5V but a...

Hello siwo278, Thank you for replying, the board I have can be connected directly to an MCU/PIC so it is not necessary to convert it to RS232, how ever as you say; I can choose the RTS & CTS through the component's properties, yes? Do you know the SPI pins MOSI, MISO, SCK, SS how they correspond to ...

Hello, I have a board that communicates through UART but has 4 pins - RXD , TXD , CTS , RTS . Can I communicate with it with flowcode? If I use the RS232 component will I be able to control CTS & RTS? As far as I know RS232 component uses only TX, RX so what about CTS, RTS? What is the TX,RX voltage...

Hello, I have a wifi board with wifi tcp/ip stack module similar to the one Matrix has - EB069- and I need to communicate with it. The wifi module has an internal web server and can create SSID through AP mode (client/server) and Station mode (client/server). I can use the web interface and create a...

Hello, I have downloaded the EB069 Factory Test Routine, I am currently working on Fv6 Trial and when I take a look at the flowchard at some macros the parameters are incomplete. Also the article says that a SSID named Flowcode will appear but I cannot find any reference of that within the flowchart...

Hello Ben,

I have acquired the above module; would I use the macros for the TCP/IP of the ethernet board to connect to it or should I create new macros?

Thank you,

Best Regards,

Andreas Achilleos

Hello,

HAs anyone tried this wifi module WizFi250-EVB ? http://shop.wiznet.eu/wizfi250-evb.html

Is it compatible with flowcode V4? Can it operate with it?

Thank you,

Best Regards,

Andreas Achilleos

Hello, Ben you are right, the RFM70 , does not have TCP/IP stack. However is the ESP8266 capable of being controlled by flowcode's wifi macros; but without the html part? I mean to send a byte through wifi macro(send byte) and then I would receive it to the android app that Ben created? Thank you