Matrix user forums

Hi guys, Using the flowcharts above as a basis, I have expanded on the code and am trying to pass a value (which is a number containing a value between 0 and 255) from one PIC to the next. I have found it works perfectly except when the value being passed is equal to 4 or less. In this instance the ...

Hi Ben,

It is now sorted and the 2 PIC's are communicating flawlessly. Tx for your assistance and support, much appreciated.

Regards
Conroy

Hi Ben,

I was looking at the same thing this morning and will try your suggestion later when I get home.

Thanks for all your support and I will let you know how I get on.

Regards
Conroy

Hi,

Would anyone recommend 10K pull-up resistors on TX and RX?

As mentioned in previous post, the file flowcharts in the post from Ben result in a continuous blinking LED.

Regards
Conroy

Hi Ben,

I now have an LED that does nothing for around 5 seconds and then starts flashing non-stop.

I have read a number of posts and have not come across any solution so am still relying on your or any other members assistance please.

Regards
Conroy

Hi Ben, I am really starting to feel STUPID as I have been struggling for 3 days to get 2 PIC's to talk to each other. Using Flowcode, I have tried SPI, I2C and now UART as per your recommendation. I have connected TX RA0 to RX RA1 I have connected TX RA1 to RX RA0 In the 12f1822_SPI_TX flowchart, I...

Hi Ben,

Tx for your quick response.

I think the easiest will be to follow your advice and use UART.

I will let you know how I get on.

Tx again...


Rgards
Conroy

Hi guys, I found a rookie mistake in my RX file as I did not decrease the variable flashcount every time I did the loop. The results in this version si that there is no flashing on the LED so I suspect that the RX chip is not receiving any data from the TX chip. Any ideas anyone.... please... Regard...

Hi guys, I have managed to compile both flowcharts. A few facts I have checked to facilitate troubleshooting: When I simulate the sending on the TX flowchart, the SPI out (green arrow) flashes as expected. Unable to check the RX flowchart in simulation mode. When I place the PIC's in the circuit The...

Hi Martin,

Changes to uppercase and it compiled fine. Thanks for your assistance. Now for some more testing...

Regards
Conroy

Hi, I need some assistance on getting either SPI or I2C working between 2 12F1822 PIC's please. I am using the 30 day free trial of Flowcode 7. Problem 1 Both chips are running at 32mhz, however I am unable to compile the TX flowchart to hex as Flowcode is reporting an " ^ (192) undefined identifier...

Hi Benji,

I added an output for RA5. Now I am getting the PWM signal on both pins (RA2 and RA5).

Any suggestions?


Regards
Conroy

Hi Martin, Tx again for your quick and very helpful response, much appreciated. I have developed another flowchart which will assist in counting the interrupts on RA2 and provide an output using CCP1. Unfortunately, the INT and CCP are both on pin5. I noticed that flowcode does not allow me to "Use ...

Hi, I would really appreciate any help. I am trying to generate a square wave signal of 2ms (on/off) using a 12F683. I have a very simple flowchart that only varies the pulse between signals. I need to be able to generate from 1 hz to 300hz only. I have and ADC on pin 7 of the pic and use that to va...

Hi Martin, Tx you for your comprehensive and clear explanation. So if I understand you correctly, I need to have the following 3 settings to run at 32Mhz, starting with osccon.JPG followed by setting the speed to 32Mhz and Auto clear Watchdog in the chip configuration as below config.JPG As a note.....

Hi Martin, I have tried just about everything but am unable to get the chip running. I used Test12f1822-#3.fcf from another thread to confirm hardware is operational and the PIC works. I was able to get the LED to flash on RA0. I then replicated the chip configuration in my flowchart to no avail. I ...

Hi Martin and Leigh,

Thank you for your response, I have not yet tried it on hardware.

I did manage to compile successfully. I will try it tonight and post a reply.

Regards
Conroy

Hi, I recently developed a flowchart that I am using to calibrate an electronic speedometer to either increase or decrease the reading going to the speedometer. I originally designed the circuit using a 12F683 and made a few examples that worked 100%. However, the 8mhz CPU on the 12F683 is too slow ...

Hi Benj, It's been nearly a year since your comment above mentioning that "you'll have a play". Have you perhaps had any progress? There are a large number of users waiting in anticipation wanting to add "affordable" Ethernet connectivity to their projects. Please.... :roll: :roll: :roll: :D :D :D R...

Hi BenJ,

Here's another Flowcode user that would be "over the moon" if we can get the ENC28J60 working with Flowcode V5.



Regards
Conroy