Search found 1570 matches

by kersing
Sun Oct 14, 2012 2:21 pm
Forum: Flowcode V5
Topic: chiplist 24EP.. and 33EP
Replies: 16
Views: 8449

Re: chiplist 24EP.. and 33EP

Does the picture below (from the release version of FC5 for PIC24 and dsPIC) answer the question? :-)
cutting.JPG
cutting.JPG (47.96 KiB) Viewed 8425 times
by kersing
Mon Oct 08, 2012 10:58 pm
Forum: E-blocks
Topic: i2c problem with TC74
Replies: 13
Views: 12192

Re: i2c problem with TC74

juanlu wrote:Hi,
It is needed to read temperature value of TC74 and then show the results in lcd wiht pic 18f4455.
To which PIC pins is your TC74 connected?
by kersing
Mon Oct 08, 2012 10:57 pm
Forum: E-blocks
Topic: i2c problem with TC74
Replies: 13
Views: 12192

Re: i2c problem with TC74

Hi Enamul,

According to the message from juanlu the device ID is 0x48, why have you changed it to 0x4d in your code?

Regards,

Jac
by kersing
Mon Oct 08, 2012 10:48 pm
Forum: E-blocks
Topic: i2c problem with TC74
Replies: 13
Views: 12192

Re: i2c problem with TC74

Looking at the flowchart I've noticed two things:
1) After the read you are transmitting a byte (1). Why?
2) You are not sending a I2C_Stop after the transaction has completed.

You might want to check if removing the transmit and adding a stop makes any difference.
by kersing
Mon Oct 08, 2012 8:22 pm
Forum: E-blocks
Topic: i2c problem with TC74
Replies: 13
Views: 12192

Re: i2c problem with TC74

Attached a flowchart I created some years ago to read bytes from the memory of an I2C eeprom (24AA02E48). Hope this helps you on the way...
by kersing
Sun Sep 30, 2012 2:29 pm
Forum: Programming Tips & Tricks
Topic: Dot Matrix LCD Display
Replies: 13
Views: 20567

Re: Dot Matrix LCD Display

I would not connect a pot before finding a data sheet. VFDs tend to have software brightness control, not hardware.
by kersing
Sun Sep 30, 2012 1:16 pm
Forum: Programming Tips & Tricks
Topic: Dot Matrix LCD Display
Replies: 13
Views: 20567

Re: Dot Matrix LCD Display

Enamul,

It looks like a VFD (Vacuum Fluorescent Display), not an LCD, to me. The current is not out of the ball park for those displays.

Regards,

Jac
by kersing
Sun Sep 30, 2012 1:12 pm
Forum: Flowcode V4
Topic: Enabling PLL on 16Bit chips
Replies: 9
Views: 7588

Re: Enabling PLL on 16Bit chips

You are welcome.

It certainly looks like a PPP issue to me. Hopefully someone at MM will be able to solve this and release a fix as your current work flow works but is cumbersome.

Good luck with your project!
by kersing
Sun Sep 30, 2012 10:54 am
Forum: Flowcode V4
Topic: Enabling PLL on 16Bit chips
Replies: 9
Views: 7588

Re: Enabling PLL on 16Bit chips

Martin, After compiling your project importing the hex file into MPLAB gives: error.jpg A sure indication something is wrong. So time to investigate some more... When changing oscillator settings in FC chip configuration the value of LASTWORDMINUSONE changes. According to the data sheet this means L...
by kersing
Sat Sep 29, 2012 11:17 pm
Forum: Flowcode V4
Topic: Enabling PLL on 16Bit chips
Replies: 9
Views: 7588

Re: Enabling PLL on 16Bit chips

Martin,

Are you not looking for the "001 = Fast RC Oscillator with Postscaler and PLL module (FRCPLL)" mode for NOSC?

Best regards,

Jac
by kersing
Sat Sep 29, 2012 9:16 am
Forum: General Programming
Topic: V5 Erro Message
Replies: 5
Views: 4837

Re: V5 Erro Message

I have just installed V5 i am now trying to program a PIC16F886 using my HP 488-00-3 board but it is giving me a Error message (Failed to get data for CONFIG8L) What should i do Have you tried searching the forum (top right corner of the browser window) for this error? Here is a solution for cases ...
by kersing
Thu Sep 27, 2012 7:01 am
Forum: General Programming
Topic: Using Microchip's USB HID bootloader for PIC18F4550
Replies: 1
Views: 2395

Re: Using Microchip's USB HID bootloader for PIC18F4550

You need to tell the linker where the code should start. This can be done by adding "-rb 0x1000" to the linker parameters (assuming the HID loader uses memory 0-0xfff which a quick google search suggests)
by kersing
Sun Sep 23, 2012 6:45 pm
Forum: E-blocks
Topic: Website Problem
Replies: 4
Views: 5074

Re: Website Problem

If you view the message as text the URL can be cut-and-pasted. Here is the article you are looking for.
by kersing
Sun Sep 09, 2012 12:34 am
Forum: Flowcode V5
Topic: Some working exemple of MCP23017 code ?
Replies: 2
Views: 2345

Re: Some working exemple of MCP23017 code ?

Have you checked this I/O expansion article in the Programming Tips & Tricks forum??
by kersing
Tue Aug 14, 2012 10:05 pm
Forum: Flowcode V5
Topic: Ds18B20 multiple device problem
Replies: 5
Views: 3941

Re: Ds18B20 multiple device problem

This sensor has a 4k7 pull-up resistor and is connected directly to the controller board about 3 cm from the microcontroller. The other four sensors are connected with different cables they are about 3,5 meters long. I have connected on sensor to one of the cables and attached a 2k7 pull-up resisto...
by kersing
Tue Aug 14, 2012 5:31 pm
Forum: Flowcode V4
Topic: code for dual voltage 'window' on ADC input
Replies: 85
Views: 49368

Re: code for dual voltage 'window' on ADC input

daveb0360 wrote: I never did like the idea of Vpp on a measurement pin!
Dave,

You are aware the Vpp pin doubles as reset if not configured for I/O?

BTW in your diagram that pin is not used for measurement but connected to plus 5v via 100K.

Regards,

Jac
by kersing
Mon Aug 06, 2012 7:26 pm
Forum: Flowcode V5 Free Edition
Topic: How do I read rs232 and get correct byte into variable?
Replies: 9
Views: 7918

Re: How do I read rs232 and get correct byte into variable?

Question 1 Let's say I want to send 5 bytes of data to control my cable reel. How do i ensure that i put correct byte into each variable? Maybe first byte is always value 120? As you suggest sending a special first byte to signal the start of a sequence is a good way. Preferably a value that does n...
by kersing
Mon Aug 06, 2012 7:15 pm
Forum: Freelance Embedded Engineers
Topic: Who can help me with formula? i give money!
Replies: 2
Views: 11819

Re: Who can help me with formula? i give money!

Formula Flowcode is a Matrix Multimedia product. See the link for more information.
by kersing
Mon Aug 06, 2012 2:21 pm
Forum: Flowcode V4
Topic: code for dual voltage 'window' on ADC input
Replies: 85
Views: 49368

Re: code for dual voltage 'window' on ADC input

One question.......do you think it would be ok to replace the 100K resistor, R8 with a 10k....saves me buying another value in......10K is used elsewhere in the circuit and would reduce cost/complexity... Dave It depends on the programmer you are using, but normally that should not be a problem at ...
by kersing
Thu Aug 02, 2012 4:42 pm
Forum: Flowcode V5
Topic: LCD on Port A prints ? Marks and doesn't work...
Replies: 10
Views: 5803

Re: LCD on Port A prints ? Marks and doesn't work...

If Enamuls code doesnt work i would try using a different port as i remember there being a problem with one of the pins on PORTA being attached to the LED or is Vin, i cant remember why, it would be worth checking the 18F4455 datasheet to see if these pins can be used. ECIO-40 uses pin RE2 for USB ...
by kersing
Sun Jul 29, 2012 11:09 pm
Forum: Flowcode V5
Topic: EEPROM Problem & Switch problem (Solved)
Replies: 4
Views: 3617

Re: EEPROM Problem & Switch problem

Hello everyone, I've trouble reading and writing to the eeprom of my PIC18F8722. I wan to write a value of 296 to the eeprom, this is a value of a calibration process. but when I read the same address the result is different. Also I have tryed to write to address 1 instead of address 0 but same res...
by kersing
Sat Jul 28, 2012 8:51 pm
Forum: Flowcode V5
Topic: PB with MACRO on Flowcode 5 AVR pro
Replies: 46
Views: 26314

Re: PB with MACRO on Flowcode 5 AVR pro

Would you mind switching the CAPS lock off? There is no need to yell...
by kersing
Thu Jul 26, 2012 2:37 pm
Forum: Flowcode V4
Topic: No heading information in GPS Component
Replies: 6
Views: 5426

Re: No heading information in GPS Component

In the raw NMEA data coming from the GPS (ex. $GPRMC,123519,A,4807.038,N,01131.000,E,022.4,084.4,230394,003.1,W*6A ) there is the "084.4" witch is the "Track angle in degrees True" or "Heading" data I would like to have as "Read_HeadingTrue". Is it possible to modify the ARM_GPS.c to include this? ...
by kersing
Tue Jul 24, 2012 8:13 pm
Forum: Flowcode V5
Topic: Problem output ports
Replies: 6
Views: 4105

Re: Problem output ports

A little more information (what hardware are you using, which version of flowcode? I suspect the PIC version, but am I right? What is the target chip, which ports are you using for output, what is connected to the output ports) might be useful. A minimal FC that demonstrates the problem would be use...
by kersing
Mon Jul 23, 2012 12:10 am
Forum: Flowcode V5 Suggestions
Topic: Autosave
Replies: 5
Views: 8444

Re: Autosave

An autosave feature that keeps a backup version every 5 or 10 minutes would be great, since these things happen. Nice feature if it uses a different file name. When I'm working on a file I do not want FC to automatically overwrite the file I opened, I might want to keep the original and save the re...