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Ok have you edited any of your FCD files? I have attached the current 16F877A FCD file just to make sure. Simply drop the file into your Flowcode V3/FCD directory. If this solves the problem then it may be worth uninstalling your version of Flowcode, Deleting all of your files from the Flowcode V3 f...

Hello Mark In the Timer interrupt properties can you make sure that the clock sorce is set to CLKO and not T0CKI pin. The T0CKI is an external input that can act as a clock for the timer if you wish but the CLK0 is driven directly from the internal program frequency clock (Crystal Frequency / 4) / P...

Hello

You use the while loop like you would use a decision icon. Double clicking on the loop allows you to enter details such as the following.

1 - Loop foroever
x < 10 - Loop while variable x is less than 10
x = 255 - Loop while variable x is equal to 255

etc

Hello

Your program seems to be compiling correctly here. Please can you tell me which version of Flowcode you are using? You can find the version by going to Help -> About.

Hello Here is the datasheet for the heart rate monitor. http://www2.vernier.com/booklets/ehr-bta.pdf Also here is the datasheet for the analogue board. http://www.matrixmultimedia.com/datasheets/EB003-30-2.pdf I would look at my frequency counter application available from the flowcode examples sect...

Hello

Here is the complete C program for the RS232 UART running at a baud of 4800.

Hello

Which device are you using? Which clock speed? Which Baud rate required?

I will generate you the code to drive the particular device at the particular clock speed and baud.

Hello Ok to start the microcontrollers use 8 bit variables as a minimum, So lets say you have 2 variables IN - contains the following bits Xxxxxxxx - We are interested in the large X bit OUT = IN & 0x80 - Masks IN to provide OUT with the value X0000000 If we want to shift this single bit to the leas...

The Flowcode graphical LCD component is for another type of graphical display and will not work with the KS0108 LCDs. To get the KS0108 functions working you must visit this page: http://www.matrixmultimedia.com/Flowcode_Components.php Read the information at the top and then download the custom cod...

Hello Jim

I dont think that there are any help files for the custom components. However there is a guide detailing their operation available on the beta component sections of the support area. This is also available via the main Flowcode page of our website.

Hello Saran

It depends which chip you are using. Some of the PIC micro devices share the SPI and UART on the same pins. If this is the case for your chip then you will not be able to implement the RS485 and the SPI without bit banging one of the busses.

Hello Jan

The Programming software ECIOprog handles all of this for you so you dont need to worry about it either in Flowcode or programming in C / Assembler.

Hello Jan

Here is an updated SPI component code file that should fix your problem. Simply drop the file into your Flowcode V3/Components folder and restart Flowcode.

Hello

Yes here is a copy of the help file for the graphical LCD.

Hello Jim

If you make macros in Flowcode then these can be exported like subroutine functions using the Macro -> Export menu. Then functions can be brought into programs using the import method.

Hello You must use the custom component combined with the gLCD custom_code.c file with the KS0108 LCDs. The actual Graphical LCD component in Flowcode is designed for use with another display. If this is what you are already doing then what are your pin connections to the display and how are you pow...

We are pleased to introduce the articles section of our Forum, This will include application notes, programming techniques, general workarounds and detailed help on certain aspects of our hardware and software. We encourage users to help us add to our article repository so if you have something that...

Hello Teo First I would try to do a single character and then take it from there. To do this you will need to create an array of 5 bytes. At the start of your program initialise these bytes with the binary to display your character. Then send byte 0 in the array to portb and switch on all of porta e...

Hello

Im afraid that BoostC is not directly compatible with microchips C18 compiler.

Do a block find and replace to change the following values.

adcon1 -> ADCON1
ucfg -> UCFG
trisc -> TRISC
portc -> PORTC
trisd -> TRISD

Your program should hopefully compile correctly after these mods.

http://www.matrixmultimedia.com/images/Article_NoStudent.png One use for an embedded system is for it to sit off somewhere recording values from sensors or other external sources. An example of this would be a weather station where rain fall, wind speed and cloud cover etc can be monitored. A usefu...

http://www.matrixmultimedia.com/images/Article_NoStudent.png When working with an embedded system it is often useful to connect the system up to a computer to allow for external monitoring of the system or to integrate an aspect of the embedded functionality into the PC itself. One of the simplest ...

http://www.matrixmultimedia.com/images/Article_AllVersions.png On a microcontroller numbers can be represented by variables in memory. The size of memory allocated for storing the numbers are defined by the maximum size of the number you wish to use. A byte variable otherwise known as a char or 8-b...

Hello You can create a Bootloader to program your hardware via the serial UART using the PIC TINY bootloader. Please refer to this topic for help setting this up. http://www.matrixmultimedia.com/mmforums/viewtopic.php?f=5&t=4647&p=8626&hilit=bootloader#p8626 Programming via USB then you can always u...

Hello Wayne Yes your program looks great, Using the 20MHz clock means that there is no error in your RS232 baud rate approximation. Have you tested your program on the hardware yet? Yes Pin 8 (RB2) is the receive pin for the hardware serial UART. No other configuration setup should be required. Mayb...

Hello Saran The UART will lock up if the buffer gets full. Performing a receive should remove the block and allow the UART to function again. Here are things to look out for. 1) Is there any data going to the Master, Maybe you could do a dummy RS232 read somewhere through your program loop to avoid ...