Hi
Thanks I'm going to play around with this and see what I can do I have checked around and many people are having problems with the grounding of the probe using the max6675. So I will see if I can find a solution somewhere out there.
Search found 374 matches
- Tue Aug 17, 2021 3:15 pm
- Forum: Flowcode V6
- Topic: PIC18F45K22 Clock setup
- Replies: 19
- Views: 14779
- Tue Aug 17, 2021 7:28 am
- Forum: Flowcode V6
- Topic: PIC18F45K22 Clock setup
- Replies: 19
- Views: 14779
Re: PIC18F45K22 Clock setup
Hi Martin I am not using any pull up resistors as all the documents say you don't need pull ups for SPI but I did put a 10 pull up in and it did not change anything so what I have done is put a 33pf cap to ground and it seems to work right. The only problem I'm having now is that if the K probe oute...
- Sun Aug 15, 2021 8:32 am
- Forum: Flowcode V6
- Topic: PIC18F45K22 Clock setup
- Replies: 19
- Views: 14779
Re: PIC18F45K22 Clock setup
Hi Martin I still seem to have a slight timing problem and it is very weird. I have set the board to 16Mhz internal clock and the SPI prescale Fosc/16 the weird part is that if I connect the scope to the SCK on the max6675 it reads the correct temperature. When I take the scope probe off then I read...
- Thu Jul 29, 2021 8:01 pm
- Forum: Flowcode V6
- Topic: PIC18F45K22 Clock setup
- Replies: 19
- Views: 14779
Re: PIC18F45K22 Clock setup
No need for more tricks UART working like a dream you a genius thanks again. Next is to get the spi to read a Max 6675 but I will deal with that next week.
- Thu Jul 29, 2021 7:12 pm
- Forum: Flowcode V6
- Topic: PIC18F45K22 Clock setup
- Replies: 19
- Views: 14779
Re: PIC18F45K22 Clock setup
Wow Martin
That worked I really appreciate your help, now to see if the SPI works in my other program on the board
That worked I really appreciate your help, now to see if the SPI works in my other program on the board
- Thu Jul 29, 2021 6:15 pm
- Forum: Flowcode V6
- Topic: PIC18F45K22 Clock setup
- Replies: 19
- Views: 14779
Re: PIC18F45K22 Clock setup
Thanks Martin
Will wait to hear from you.
Will wait to hear from you.
- Thu Jul 29, 2021 5:55 pm
- Forum: Flowcode V6
- Topic: PIC18F45K22 Clock setup
- Replies: 19
- Views: 14779
Re: PIC18F45K22 Clock setup
Hi Martin
I set the scope to 1 second per division and it give me just under 2s, but what I can understand is that the display on the board is displaying correct.
I set the scope to 1 second per division and it give me just under 2s, but what I can understand is that the display on the board is displaying correct.
- Thu Jul 29, 2021 4:04 pm
- Forum: Flowcode V6
- Topic: PIC18F45K22 Clock setup
- Replies: 19
- Views: 14779
Re: PIC18F45K22 Clock setup
Hi Martin I don't know if I'm being stupid but I have been trying to get the UART to work I have connected a display to the hardware an that works but the UART refuses. It send data but garbage (øxxxøxøxøx€) and I'm almost sure it is something to do with timing. I have sent the day trying to get thi...
- Thu Jul 29, 2021 11:16 am
- Forum: Flowcode V6
- Topic: PIC18F45K22 Clock setup
- Replies: 19
- Views: 14779
Re: PIC18F45K22 Clock setup
Hi Martin
Thanks for the explanation it has helped a lot I learnt something new, I always thought setting the clock in the project options set everything up but now I know why I have always battled setting the clock speed.
Thanks for the explanation it has helped a lot I learnt something new, I always thought setting the clock in the project options set everything up but now I know why I have always battled setting the clock speed.
- Wed Jul 28, 2021 3:18 pm
- Forum: Flowcode V6
- Topic: PIC18F45K22 Clock setup
- Replies: 19
- Views: 14779
PIC18F45K22 Clock setup
Hi guys I'm a bit confused I have been trying to set the clock speed to run internally at 64 Mhz but with no luck I see in the data sheet • Precision 16 MHz Internal Oscillator Block: - Factory calibrated to ± 1% - Selectable frequencies, 31 kHz to 16 MHz - 64 MHz performance available using PLL – n...
- Mon Aug 31, 2020 3:41 pm
- Forum: Flowcode V7
- Topic: Compiling Error
- Replies: 3
- Views: 4359
Re: Compiling Error
Hi Martin
Thanks for that i reduced the size of some of the String variables and problem sorted.
Thanks for that i reduced the size of some of the String variables and problem sorted.
- Mon Aug 31, 2020 1:12 pm
- Forum: Flowcode V7
- Topic: Compiling Error
- Replies: 3
- Views: 4359
Compiling Error
Hi Guys
I have a strange problem and not sure what to do when I compile i get an error which does not make sense see the picture below
If i disabel the text that has been circled below it compiles without error, what could be the problem?
I have a strange problem and not sure what to do when I compile i get an error which does not make sense see the picture below
If i disabel the text that has been circled below it compiles without error, what could be the problem?
- Fri Jul 17, 2020 2:14 pm
- Forum: Bug reports
- Topic: PWM PIC18F47K40
- Replies: 21
- Views: 9762
Re: PWM PIC18F47K40
Hi Ben
Thanks for your reply that seems to have solved the problem I set it to Focs / 128, now I need to get the PID side of things working (tried buying a PID controller but with this Vuires cant get much here in SA)
Thanks for your reply that seems to have solved the problem I set it to Focs / 128, now I need to get the PID side of things working (tried buying a PID controller but with this Vuires cant get much here in SA)
- Fri Jul 17, 2020 8:40 am
- Forum: Bug reports
- Topic: PWM PIC18F47K40
- Replies: 21
- Views: 9762
Re: PWM PIC18F47K40
Hi Guys Im not sure if this is still part of the problem with the A/D component not working correctly. On A0 I have a voltage of 0.182 which im trying to display on the LCD screen. I'm using (get analog voltage) and then converting it to a string then printing to screen but what it displays is 0.078...
- Fri Jul 03, 2020 8:47 am
- Forum: Flowcode V7
- Topic: PID Temperature Control
- Replies: 4
- Views: 5521
Re: PID Temperature Control
Hi Ben Thanks for the reply I'm getting somewhere the problem I'm having is the PWM output I have tried implementing the Scaledtemp but don't seem to know what I'm doing. Say I want to have a maximum temperature if 125 and temperature is 0 then the pwm must be 255 and when it gets closer to the 125 ...
- Thu Jul 02, 2020 1:24 pm
- Forum: Flowcode V7
- Topic: PID Temperature Control
- Replies: 4
- Views: 5521
Re: PID Temperature Control
Hi Qmesar
Thanks for the reply my only problem is that I am not using a DsPIC so not sure if the DSP functions will work on a PIC18F47K40
Thanks for the reply my only problem is that I am not using a DsPIC so not sure if the DSP functions will work on a PIC18F47K40
- Thu Jul 02, 2020 9:13 am
- Forum: Flowcode V7
- Topic: PID Temperature Control
- Replies: 4
- Views: 5521
PID Temperature Control
Hi Guys I'm trying to make a PID controller but am a bit lost I have made a test program using a PID example I found on the net with no luck I'm not sure where to insert the changing temperature that will then change the duty cycle of the PWM can someone please explain what I need to do. PIDTest.fcfx
- Tue Jun 30, 2020 4:49 pm
- Forum: General Programming
- Topic: Percentage
- Replies: 4
- Views: 3658
Re: Percentage
Thanks Guys I've got it working
- Tue Jun 30, 2020 3:59 pm
- Forum: General Programming
- Topic: Percentage
- Replies: 4
- Views: 3658
Percentage
Hi Guys I'm trying to display percentage on my LCD display the formula I'm using is Percentage = ((DutyCycle / 255) * 100) what happens it will display 100% (255 / 255) * 100 but will not display any other value eg Percentage = (( 253 / 255) * 100 ) which should give me 99.21 % except it gives me 0%...
- Thu Jun 04, 2020 2:05 pm
- Forum: Bug reports
- Topic: PWM PIC18F47K40
- Replies: 21
- Views: 9762
Re: PWM PIC18F47K40
Hi Martin
I have given it a try and it is now working Thanks so much
I have given it a try and it is now working Thanks so much
- Thu Jun 04, 2020 1:50 pm
- Forum: Bug reports
- Topic: PWM PIC18F47K40
- Replies: 21
- Views: 9762
Re: PWM PIC18F47K40
Hi Martin
Sorry for responding so late been out the whole day, Thanks for your help I will give it a try and let you know
Sorry for responding so late been out the whole day, Thanks for your help I will give it a try and let you know
- Thu Jun 04, 2020 7:22 am
- Forum: Bug reports
- Topic: PWM PIC18F47K40
- Replies: 21
- Views: 9762
Re: PWM PIC18F47K40
Hi Guys
As the PWM Component is not working and I'm waiting for Ben to have a look at it, does anyone know how I can make a PWM using a timer interrupt?
As the PWM Component is not working and I'm waiting for Ben to have a look at it, does anyone know how I can make a PWM using a timer interrupt?
- Tue Jun 02, 2020 3:40 pm
- Forum: Bug reports
- Topic: PWM PIC18F47K40
- Replies: 21
- Views: 9762
Re: PWM PIC18F47K40
Hi yes have remapped with no success
and did set the duty cycle to 15 but alas no luck,
and did set the duty cycle to 15 but alas no luck,
- Tue Jun 02, 2020 3:08 pm
- Forum: Bug reports
- Topic: PWM PIC18F47K40
- Replies: 21
- Views: 9762
Re: PWM PIC18F47K40
Thanks, Martin but ist still does not work think there must be something wrong with the PWM component
- Tue Jun 02, 2020 2:31 pm
- Forum: Bug reports
- Topic: PWM PIC18F47K40
- Replies: 21
- Views: 9762
Re: PWM PIC18F47K40
Hi Martin I'm a bit lost now The PWM will work at the correct frequency if Timer2 interrupt Prescale Rate is set to the required PWM Prescale. Timer 2 interrupt Rollover Value is set to the required PWM period. The timer 2 interrupt can be enabled, then disabled straight away. I have set the rollove...