Matrix user forums

Hi All,

There is an issue with the programmer EB006 Rev7 when used in conjunction with the USB232 eblock - Flowcode cannot obtain the CHIP ID when the USB232 eblock is powered from USB. Removing the USB cable from the USB232 eblock resolves the issue but the root cause is unknown so far - it is ...

I have had the same issue - i cannot ID the chip unless I remove power (ie. unplug its USB connection) from the USB232 E-Block. This is extremely annoying and also an intermittent problem.
I think that when the USB232 e-block is powered it will be asserting some of its IO pins (possibly RTS) - this ...

Hi All,

I have discovered an issue with Flowcode and the way it deals with the USART on the 18F4520.
If i compile working RS232 code for the 16F88 and talk to Hyperterminal (TX and RX) everything is fine but when the chip is changed to an 18F4520 (and the jumpers are set accordingly etc etc) the ...

Hi Benj,

I now have the code working for the majority of the time and now understand it. I have discovered some problems however - these are with Flowcode not being able to get the chip ID when the USB232 E-Block is connected to a USB port as well as the programmer. As soon as the USB232 USB lead ...

Hi Benj....It works on the 16F88 very well but no joy with the 18F4520 which is my ideal part to use

I will investigate further!

S

Oh, before I get cracking with this - is there a chance it will not work with an 18F4520 or 4550?
I will of course try it on the 16F88 first.

S

Benj, your a genius
I will give this a try later and send you a big sloppy kiss if this works out! Watch this space......

Thanks Benj - i did try printing the 'in_string' to the LCD and it did not look as expected. As i remember the first character was missing but i will need to confirm.
I do believe that this should be a simple task and I now understand your code - it just doesnt work for me! :-)
If you get a chance ...

Hi benj - if you can provide any assistance it would be appreciated!

Many thanks,

S

Hi Ben, me again!

Still not working and would like to know some more info.

1. Can you let me know, for the 16F88, which jumper settings for the flow control I need to use on the USB<>serial board (EB039-00-1). If i am not using flow control do i need to connect RTS/CTS together?
2. Can I trouble ...

Hi Ben,

I gave the new code a try but it still does not work all the time?
I forget to mention but I am using the EB039 USB<>UART converter block. I have also swapped my 18F4520 for a 16F88 (the one which came with the eblocks) so I have identical HW to you.
In the interests of shutting me up ...

Many thanks Ben - I will give it a try later and let you know how things work!
After looking at your file it has become apparent that I would not have stumbled upon the solution myself.

Thanks!
S

Hi Ben - It didnt work for some reason. It programmed ok but there was no change on PortD when the ...

Many thanks Ben - I will give it a try later and let you know how things work!
After looking at your file it has become apparent that I would not have stumbled upon the solution myself.

Thanks!
S

Hi Ben,

Sorry but I am still struggling with this one - I have tried a number of options:

1. Reading the input from the serial port and converting to a char and then comparing this char to another in a decision box.
2. Doing a string compare (details seem sketchy on how to use string-compare ...

Hello

The way to acheive this would be to use a string comparison or a series of them if you require muliple commands. The string comparison gives you a value of 0 if the strings are identical so you can then use a decision box to see if the variable is 0. If it is then you have received your ...

Hi All,

I have been using FC V4 for a few days now but cannot figure out how to trigger some even when i receive a specific string over RS232 (from Hyperterminal).
I can receive characters from Hyperterminal and dislpay them on the eblocks LCD and I can also send characters and strings to ...