Matrix user forums

Sorry - not at computer now.. but is your value a float?

Just looked and it's an integer value - you'll need a floating point value for your result...

Martin

In a calculation use:

str = FloatToString$(value, 2) (or change 2 to required number of digits...)

Then print str.. (str defined a string variable..)

Martin

Glad to hear you got it working. That bar graph - graduated display looks great!

This forum doesn't have a specific section - I've posted stuff in the 'hints and tips' section....
The new v9 forum has a specific area https://www.flowcode.co.uk/forums/viewforum.php?f=10

Martin

One way to do it is with '|' (or operator) or to clear bits '&' (and operator)
will set bit 4 will clear bit 4

To set a 'variable' bit To set or clear multiple bits you can use a mask will set bits 7..4

Martin

A couple of ideas to try... In the first program: The max string length is limited to 10 chars (receive_pos = (receive_pos + 1) % 10 - receive_pos will go from 0..9 then back to 0 - so increase the 10 to allow for max length of string - might need to increase size of buffer (Data_string) too. What i...

Hi Ronny,

Can you post your code to date? - and I'll try and see why it's just getting the tail of the string...

Martin

Hi Ronny, The isCharWaiting function doesn't really have an equivalent in FC - what to do is to have an Rx interrupt that puts received characters into a circular buffer (either the FC component or a simple array and counter) There are examples here https://www.matrixtsl.com/mmforums/viewtopic.php?f...

Progress - so far...

See https://youtu.be/1rtbY4XN9Tc

Martin

Thanks, yes it didn't seem to cause a problem - and gone in v9...

Martin

Something like: senddata.JPG Where data (an array - you can use any value in the parameter definition, data[2] for example - and then pass any size array (data[10000]). Also pass the length - as mentioned this will allow data arrays (including 0) - if you want to use strings (0 is termination charac...

Looking at the code generated... void FCD_05481_cal_uart__SendString(MX_CHAR *FCL_DATA, MX_UINT16 FCLsz_DATA) { //Local variable definitions MX_UINT8 FCL_IDX; MX_UINT8 FCL_LEN; So - in FC8 at least you will be limited to a maximum of 255 characters if you use SendString. Note this seems to be fixed ...

Are you actually sending a string or an array of data?

- in a string 0 marks the end of string. If it was an array of data then 0 might be a valid value - and you would typically also pass a length to.

Martin

Hi Brendan, Have a look at the c generated - if there is a X = str_len(str) type statement or an index while (str[X])... then the max length will be determined by the size of this and other variables if x is 8 bit then 255 characters is probably your lot. It would be easy to write a new routine usin...

A visual bug. Using an ATTiny MCU (I tried 88 and 22 others maybe affected too) - set the clock speed to > max speed (so for I tried 16 and 32MHz) - this (correctly) says 'greater than max speed' - but then displays the 'loading targets' with whirly. This stays until clicking 'cancel' which gets rid...

No problem...

Martin

Hi Brendan,

The easiest way to check this is to define some code that does it and then look at the C generated..

For example in a calculation I do : This 'expands to' (using customize C code or view C) Martin

Currently reading 'Algorithms Illuminated' by Tim Roughgarden - and first algorithm I tried to implement in Flowcode was Quicksort. This is a great sorting algorithm - quick (as the name suggests) and also light on memory use (although it can use a fair bit on recursion calls...) So - using a very n...

I did a simple component for an i2c eeprom eeprom.fcfx - Which I've modified and used extensively since I posted it (above is a copy of the last posted version... (It's simplest and program rather than a component)) It should be fairly straightforward to get it to work with the 24c64 chip (note this...

Hi Ben,

Hope you had a good Christmas - any progress on this - it seems to affect all the chips with the USI interface.

Martin

Wishing everyone a merry Christmas and hoping that 2021 is a prosperous and happy New year.

I think Martin's house looks the cosiest...

Martin

The flowcode password doesn't seem to be properly linked to the forum password.. I changed mine for the matrix site - but the old password still works on the v9 forum.

Martin

So many displays (or is it display drivers?)

Will have a look and see - what features would you like to see though

d.. it

- good advice for holes in the socks?

Martin

No worries. If you change your mind then PM - but hopefully Matrix can get things up and running for you. I'd experiment - but without something to test on it's not an easy ask. There are a lot of good screens that are easy to use and work with - so if you are needing to get something working quickl...

As I offered with another display - if you supply me with the hardware - I'll try and get something working.

As it's a commercial project then payment would be good.

I've 'done' a component for ST7789 so have some experience with displays.

PM if you are interested..

Martin

Hi Clive, If you send me a display - I'll try and get it working. I've just been working with the st7789 and got it to work pretty well... I can return it when done. If you're interested I'll pm you my details Note I'm only offering basic functionality so no simulation . But see the st7789 topic. I ...