Matrix user forums

Thanks for the quick reply
For simple bit transfers would the RFID component be best?

Im evaluating v6 for my company and wanted to know which RF macro would be best for simple data transmission between two 8 bit PIC chips. Data would be a couple of bytes representing pressure sensor readings. Transmission distance is short and our design uses simple OOK Modulation Thanks for any ass...

Hello, Trying to interface a 16F916 to an ISD Voice Chip using SPI commands. The command structure for the PLAY Message op code is as follows: BYTE 0 BYTE1 0x40 0x00 Looks like the Flowcode Send_Char only transmits 1 byte at a time I would need to do the following SPI_INIT SEND_CHAR 0x40 Play Opcode...

Enamul,

Thanks !!!

Not getting the same result on the o'scope but did some tweaking and got to the pulse parameters I needed.

Best Regards,

George

Hello, Im trying to create a simple flowcode program to generate a square wave with the following characteristics: Frequency = 988Hz Duty Cycle = 4.47% ( which is an 85us on time) I am using an F628A with the PWM macro. I have tried ( multiple multiple times) changing the duty cycle and change perio...

Hello,
I am a student and have the student version of Flowcode - I was trying to learn about RS-232 communications but could not get any of my programs to work. Does Version 4 support RS-232 communication programs.
Thanks for any help !!

Hello,

How best to calculate beats ( counts) per minute from a digital input without having to wait for a full minute.
Im new to timer routines - seems like this is the best route
Can anybody help?

Thanks !!

Ben, After reviewing all the posts related to this topic it still seems that many folks are still having difficulty making the PIC work with the DS1820 in flowcode. I reviewed your PIC16F877A code you had posted sometime back using Eric's code as the base. I used a new 877A and 2 DS18B20 IC's. The s...

Jan,

Were you ever able to get this to work?

Regards,
George

Daniel,

Thanks for the quick response

Please find the schematic attached - hopefully all is legible

I tried a dirrerent DS1307 and same result - I really want to get this working - thanks for your help !!

George

Daniel,

Just as a check I put a frequency counter on the DS1307 Oscillator and the Oscillator is not running so the CH bit may not be set to 0.

I dont fully understand your code so any help on this would be greatly appreciated.

Regards,

George

Daniel, Wired up everything and loaded the 887 with your V2 code. Getting 00:00:00 on the LCD - not changing. In your code was the CH bit set properly? This is from the DS1307 datasheet Bit 7 of Register 0 is the clock halt (CH) bit. When this bit is set to 1, the oscillator is disabled. When cleare...

Daniel,
I will give this a try - will let you know how things go.
Thank you very much !!
Best Regards,
George

Daniel, It looks like the attached program is complete - init time and then time display Can I load the program with init enabled ( time settings like like they are HEX) and then after initial run on the PIC , reload with the init call disabled so it does not continually reset the time Also, which p...

Dan81,

In your DS1307 example how it the DS1307 initialized with the correct time - how is it set?

Thanks !!

Hello,

Does Flowcode V4 have the capability to have a PIC generate 4 bit BCD codes for driving 7 segment LED decoder / driver IC's?

Thank You

Hello,

In the Chip configuration menu under Advanced Settings I cannot find an Internal Oscillator selection for the 16F887. Is there another way to enable this?

Thanks

Hello, Looks like this Macro is configured as a 4 digit Common Anode multiplexed display. Im using a 16F887 Should the Anode lines be driven through an NPN transistor - say with a 1K Ohm as Base resistor ?- this would mean that a logic 1 on the base of the NPN 's from the 16F887 would drive the Anod...

Works Great - thanks Ben

Hello
Thanks for the quick reply. I looked through your example and have difficulty following how to do parsing of a 2 digit number to its individual digits.
Is there a straightforward way of doing this in flowcode?
Thanks:)

Hello, Im using the Version 4 Digital Clock Example written for an LCD and converting it to drive individual 7 Segment LED Displays. Issue i am having is converting Hours, Minutes and Seconds (declared as Bytes in the example) to individual digits so they can be displayed on the 7 Segment LED Macro ...

Eric, Thanks for taking the time to put your reply together !!! I wired up exacty as in your schematic - checked and double checked I get all 0's when I run it - including a 0 for get temperature - i added a loop around the code to see if I could get any number other than 0 to show up for temperatur...

Ben, I've been working from Eric's DS1820 program as the basis for understanding why I have been unable to get my replication of his experience to work properly. I created a stripped down version of Eric's program that reads one DS1820. In the program I included LCD diagnostic statements to report r...

Eric, Thanks for the quick response. My last attempt at getting the code to work I used 8 DS18B20's as in the original downloaded file - no luck - still displays 3: Wrong Sensor Count Im using a straight PIC18F452 - no eblocks, etc - just the 8 DS18B20's wired as Maxim details with a 4.7K pull up to...

Ben, Eric I started this post sometime back and am still not having success. Eric - I tried your program with the original configuration of a PIC18F452 and keep getting ERROR Number 3: WRONG SENSOR COUNT Ben - Also tried your version on a PIC16F877A - same message 3: WRONG SENSOR COUNT I have modifi...