Matrix user forums

Hello, Is there any example FC programs using the 23LCV1024 SPI memory chip? @Ben, i did mention this chip before in another thread and you said it exists on the EB006 ghost board, do you have any example code using this device? I did look at the ghost board page but there is nothing about any code ...

Hello From what i can see the mloader is a bootloader tool that covers a variety of pic chips for bootloading, but looking at the tools folder of FC V6 that i have, i dont see an actual bootload "program" so to speak.... Question is how do i use this for example with a 18F25K22 device as all i see i...

Hi Ben,

Ok found the problem

Cannot make the string 256 members, otherwise it falls
on its nose. I needed a large buffer because i could receive
up to 200 chars at a time.

I changed the string array to 200 members and it now works.
Little headsup there for you fellows out there

Thanx

Mark

Hi Ben,

Also tried using the string receive function in the uart interrupt
without a loop, also nothing doing....does not exit the interrupt
and does not send out anything either (sending out the string
once supposedly captured)

Thanx

Mark

Hi Ben, Just got round to trying the receive string macro. Does not seem to be working.... Using 18F66K22 and FC V5 I am putting the receive string function in an interrupt macro which has a loop to receive the string. Copied the procedure exact same as the flowcode V5 example. I set the timeout to ...

Hi Ben, Thanx for explaining that....had idea that was going on there. Can you also please explain the ntimeout value? For example if i use 200 in the ntimeout value, does this mean 200mS or some other quantity? Martin suggested i use the "milliseconds" in the 232 config panel.... What is the differ...

Hi (sorry dont know your name!) What you say might be so, however logically i think whats going on is that the timeout is a time period for waiting to see if all chars are received for the string. If so it should end the string with a null character and then exit the interrupt macro....going to test...

Hi there, Thanx for info....i didnt know that setting also worked for receive string. So, if i set it to millisecs, and in the string receive function i set the ntimeout value as 200, that would imply 200mS delay to terminate the string capture? Just trying to understand the timeout value/meaning :)

Hello, I have looked in the help section about the receive string function, and understand the various parameters, but i have a question about what the timeout parameter is actually based on? Using FC V5.... The nTimeout byte seems like a value between 0-255. But the help file does not explain what ...

Hi Ben, Thanx for your reply on that.....pretty much sums it up. Think i will go with the SRAM instead. The chip draws a very small amount of current when running on the VBAT battery input. It actually has 2 supply pins.....one for VCC and one for VBAT. I am going to run the VBAT on tiny Seiko lithi...

Hi All, Looking to use some sort of non-volatile memory for data logging. There are options like flash memory chip, SD flash card and battery backed SRAM etc.... I have never used flash memory before, so the question is this: 1. When using flash memory i have been told they can "wear" out. Since i a...

That did the trick
Much appreciated. .....I had idea those functions had something to do
with it.

Hi Using FC V5 and 18F66K22 This micro has 3 internal Vref+ sources for the ADC. Namely, VCC / 2.048 / 4.096 However, the ADC component setup allows for only "VCC/AVDD" and "External Vref" There is no setting for 2.048 Vref. I need to be able to have this lower Vref+ setting as my supply to the micr...

Hi Ben,

Great.....thank you.

Makes things a bit simpler

Hi there, I need to send an AT command to a GSM module that is used to setup gprs mode etc. However, within the string constant i also need to send the quote char ( " ) which kind of messes with the string format requirements. You then land up with quotes within quotes..... I know one can send part ...

Hi Ben,

Thanx, will give that a try.....will post results for others to see.

Mark

Hello,

Can anyone tell me if the strings that are being compared need to be same array size?
Lets say str1 has array size of 10 elements and str2 has array of 5 elements. Will the
compare str$ function work? Help files dont really elaborate too much on that.....

Thanx

Mark

Hi Martin,

Thanx for the example.....will take a look and see how it works

Can you tell me what version FC you did this?

Thanx

Mark

Hi Martin,

Sounds like a good idea. I will try it out and see if it works in my application.

In the meantime, if you get a chance, could you show me an example
program? I have both FC V4 and V5

Thanx

Mark

Hi What methods have been used to detect the long press of a switch/tactile? I have a project that needs to detect if a press the switch briefly or for say 3 secs, to generate different response like display a different menu on LCD screen? Switch bounce is not an issue, i have a dedicated hardware c...

Hello What would be the most efficient way to setup a string variable such that the " char can be included into the string? (The problem is that the string variable uses " " to enclose the string chars, and you cannot use " inside the string....) This string variable is then used to be sent out the ...

Tried the +1 in the calculation....still not working. I also tried hard coding the figures from 7 - 9. No luck. Other compiler is the MikroBasic compiler for 12/16/18F devices. I used this for the bootloader as they have nice library functions for read/write to flash memory(cuz i am a lazy sod :D ) ...

Hi Ben Will try that.....but will that not fix the baudrate at that speed? Since you are commenting out the calculation? Just remember this...my other compiler works 100% at 115200 baud with my 16mhz clock speed (internal). So, they are getting it right somehow....but FC5 is not calculating correctl...

Hi Ben I set the custom baud again 115200 (its the only way to select 115200)....and tried all different baud rates on the PC side....not working, garbled data. Tried setting 9600 on the "custom" method....works OK. This might give you some clue? I have an idea that when you enter "115200" on the cu...

Hi Ben Yup, tried 9600 / 19200 / 38400....all work. Soon as you set 115200 on the "custom" baud rate setting, the data is garbled. I know 115200 works, because i used it with a bootloader i used with another compiler. That works flawlessly.... Something is not being calculated properly :roll: Thanx ...