Matrix user forums

Hello guys.. so Ben said use a PIC16F15325..!! So it has 2 hardware channels of UARTs.. AND YOU CAN PUT THEM ON ANY PINS... except like MCLR... and power pins... The Flowcode Build -> Config options also shows that the MCLR pin... can be set to be MCLR is MCLR.. OR... MCLR to be used as an input pin...

Hello Ben ... and Martin.... YEAH thanks for all that.... and all I can say - AGAIN.... is where is the ... Flowcode 8 ... in depth ... USER MANUAL.....please....?? Also note from my attachments... that my UART... does not have a .... REMAP PIN.... Where do you download the files... from please..???...

Hello Ben ... forgot to send the screenshot...

Helo Ben.... so can you please lookl at the attached picture... and see that the properties of the UART... are not what one would expect... I would expect that... the hardware channel UART... for a PIC16f1615 would be .. C4 and C5 ... NOT C0... with the RX unconnected... if you try to change any val...

Hello Ben... yeah.. points - taken.... Now I might say - that I have the whole system working perfectly... up until say Saturday morning..!! So I have the two software UART's working absolutely perfectly... and the one hardware UART... The çircuit'was working absolutely perfectly... and I am very gr...

STILL the incorrect file....
bye..!!!

HEY...!!!! what an idiot... sent the wrong file... DAMN it all...
here goes again....
Sorry for this...!!
chows...

Hello folks.... yeah - okay so I have become totally confused - BUT until I tried some other 'stuff' ... then I found stranger things... In the UART component... one has SENDCHAR , and then SENDNUMBER ... So now... in one program... what I would call a number generator... on another PIC chip... I ha...

Hello Unca' Ben... Okay so attached is a short program I stuck together... which uses A5 on the processor in a SOFTWARE UART... of the PIC16F1615 chip. C2 is used in a software uart... to print... out...the values derived from the output... .... cause the program is a free stander.. it is not really...

Hello Ben .... OKAY... OKAY... Gee... so thank you for spotting this little problem...!! I would never have realized this EVER... until I had studied all this good stuff..!! Have you fellows got some very good PDF's about the use of flowcode8 ... somewhere.... that we all could download.... It is of...

Hello Ben.... yeah absolutely - SIR.!!!!!!! Gee.. I have thought about this all day... (I had to go help a mate with drilling PCB's CNC style... today)... but I am wondering whether... the TX from the modem... is just a plain lot of "mumbo-jumbo" characters.... which just pour out the mode...

Hello Martin ole buddy..!!
Sure... just want to re-create it - after I deleted it..!!!

Shortly... Shortly...

regards

Hello folks.. so in Data menu of flowcode 8, is EEPROM, for the internal eeprom of a chip, to which one may store data to.. If you put it into say 2D dashboard... examine the properties, you see some default values.- OKAY.. So then you write a program, to use the WRITE or READ function of EEPROM... ...

Hello there Ben ... and others.... FIRSTLY - THANKS VERY MUCH for showing me something I never even thought about....!! Anyway - I could not get anything to work... I spent the afternoon - trying to do other things in order to get some way to show me that the CIRCULAR BUFFER is not working... BUT in...

SO... I have made this handy lil... power switcher board... which I hitch onto the end of the white bread boards... the normal units which should hopefully be available to most of us... I hope... So the pins.... T1 ..T2..T3 .. T4 .. are simply a double 2.54 mm spaced golden pins.. which are soldered...

Hello Ben... yeah... I read this - what you wrote....!!! INDEED... "Warning using interrupts in the same program with a software UART may break or cause instability in your software UART communications. You may need to disable the interrupt before using the software UART and then re-enable the ...

Hello Leigh... and Ben .... yeah - that was a mess up... and that was completely incorrect.... hmmm...(A gremlin)... So I have simplified the program... as much as I could.... and have attached it here... It simply - enables the INTERRUPT ... so that UART RXINT0 ... should hopefully excite... the RX...

Hello there - thanks... very much for all your input.... I have tried some stuff... AND it took me a while to realize that the CIRCULAR BUFFER is not working in conjunction with the INTERRUPT system... So the UART / CIRCULAR BUFFER / INTERRUPT complication... is not working at all... I can only ask ...

Hello there Ben ... yeah... I thought about it for a while... then I sat down and made up a new PCB... for the MCP7940 M chips.... The circuit is really - exactly like you have drawn it... I have attached some PDF files for others who would like to make up boards... for JUST using it on a white brea...

Hello - again.... folks ... and ALL ... So I have attached a very simple program... using a LoNet modem.. with a SIM800L chip onboard... It actually used to work pretty well... BUT NOW ... in tidying up the flowcode software... to make sure that the modem.. is reacting / working ... like it should b...

Hello there guys....!!! and ALL... Right - so.... OKAY... I AGAIN... A STUPID..!!!! Who knows that there are two types of MCP7940....??? I wonder why Microchip - would even waste time making the M version - with NO battery backup pin availability... Okay - so thanks to BEN for his comments - MUCH AP...

Hello Leigh... okay so.. we DO NOT STAND ALONE...!!! There is something WRONG WITH THE MCP7940 CHIP ... made by microchip...!!! It seems - that folks have found that... the VBAT... voltage must be held at say - 5V... on power failure... When the power fails... 5V -> 0V ... the chip registers are scr...

Hello Leigh... yeah - okay - I went back and checked everything again... and it's all in order..!! I have had 2K resistors on the 5V to SDA / SCL .. .. like in the microchip diagram... (not to the 3V line...)... I have caps on all the other points... including the 100 pf cap they discuss.... I then ...

Hello Leigh... yeah thanks for reminding me of stuff I have already done, and taken care of... on the little board...I made up.... I then looked at the more expensive... DS1307... chip... and it is amazing.. the circuitry is basically the same... so I merely used a DS1307 chip instead of the MCP7940...

Hello folks.... !!! hmmm... good day... to ALL..!! Okay so I have spent a further period of time... trying to debug the fault in the MCP7940 circuit etc etc etc... It appears that... somehow - when the circuit is powered down... the damage to the registers in the MCP7940... occurs...!!! Exhaustive t...