Author |
Message |
Topic: ModbusTCP Large Dataset |
demedeiros
Replies: 4
Views: 4405
|
Forum: General CCS C Discussion Posted: Wed Jun 05, 2024 7:29 am Subject: ModbusTCP Large Dataset |
Ttelmah/temtronic,
As always, thank you both for the informative responses. You are both awesome.
The current PIC we're using is a 18F97J60 which is the largest in the family, however it looks l ... |
Topic: ModbusTCP Large Dataset |
demedeiros
Replies: 4
Views: 4405
|
Forum: General CCS C Discussion Posted: Tue Jun 04, 2024 6:11 pm Subject: ModbusTCP Large Dataset |
Hi all,
I am trying to wrap my brain around the amount of memory that will be used for a modbusTCP application.
I know the modbus code and other code will have an impact, but I can compile that ... |
Topic: Help with CRC |
demedeiros
Replies: 3
Views: 5051
|
Forum: General CCS C Discussion Posted: Wed Jan 31, 2024 5:42 am Subject: Help with CRC |
Ttelmah,
Thank you, once again you save the day!
Things like this make me doubt myself... "It should just work!!! What kind of idiotic mistake am I making! |
Topic: Help with CRC |
demedeiros
Replies: 3
Views: 5051
|
Forum: General CCS C Discussion Posted: Tue Jan 30, 2024 7:33 pm Subject: Help with CRC |
Hi All,
I am trying to use the CCS supplied crc.c file for calculation of a 32bit CRC. I am not sure if I am doing something wrong as the CRC result does not match anything that is calculated when ... |
Topic: PIC24 Capture Input Capability/Gotchas |
demedeiros
Replies: 7
Views: 7259
|
Forum: General CCS C Discussion Posted: Fri Dec 22, 2023 11:06 am Subject: PIC24 Capture Input Capability/Gotchas |
Thanks all, I really appreciate the help! |
Topic: PIC24 Capture Input Capability/Gotchas |
demedeiros
Replies: 7
Views: 7259
|
Forum: General CCS C Discussion Posted: Thu Dec 21, 2023 7:12 pm Subject: PIC24 Capture Input Capability/Gotchas |
The PIC24 or dsPICs do indeed run with 2 oscillator cycles per internal instruction cycle, so yes Fosc/2 as opposed to the 8 bits PICs which are 4 oscillator cycles per instruction cycle.
It sounds ... |
Topic: PIC24 Capture Input Capability/Gotchas |
demedeiros
Replies: 7
Views: 7259
|
Forum: General CCS C Discussion Posted: Thu Dec 21, 2023 7:09 pm Subject: PIC24 Capture Input Capability/Gotchas |
you might have the 1829 JUST do the 'front end' capture and signal a bigger PIC to do all the rest. PICs are cheap today and 'offloading' could be better ?
Thats a good idea that I hadn't thoug ... |
Topic: PIC24 Capture Input Capability/Gotchas |
demedeiros
Replies: 7
Views: 7259
|
Forum: General CCS C Discussion Posted: Thu Dec 21, 2023 2:48 pm Subject: PIC24 Capture Input Capability/Gotchas |
Hi all,
I have an application where I need to measure the amount of time between 3 or 4 sequenced signals. They are all digital, rising edge signals, time between rising edges to be approximately 5 ... |
Topic: Setting up analog read on PIC18F87J60 |
demedeiros
Replies: 5
Views: 6240
|
Forum: General CCS C Discussion Posted: Mon Nov 13, 2023 5:57 pm Subject: Setting up analog read on PIC18F87J60 |
comment.
when reading analog voltages,always best to read several times, take an average. relying on ONE reading can be bad (think 737-MAX8)
All my temperatures get read 10x,toss high,toss low, av ... |
Topic: Setting up analog read on PIC18F87J60 |
demedeiros
Replies: 5
Views: 6240
|
Forum: General CCS C Discussion Posted: Mon Nov 13, 2023 5:51 pm Subject: Setting up analog read on PIC18F87J60 |
If you are getting 624 from the A/D and your vref is 3.3V then 624/1024*3.3 = 2.01V
Doh! Thank you, I shouldn't have posted this minutes before leaving for the day...
It did seem that I was not ... |
Topic: Setting up analog read on PIC18F87J60 |
demedeiros
Replies: 5
Views: 6240
|
Forum: General CCS C Discussion Posted: Mon Nov 13, 2023 1:03 pm Subject: Setting up analog read on PIC18F87J60 |
Hi all,
I am trying to read from one channel (AN8) of a PIC18F87J60. I have my code setup as follows:
Setup of ADC:
setup_adc_ports(AN0_TO_AN8, VREF_VREF);
setup_adc(ADC_CLOC ... |
Topic: Ethernet system architecture help |
demedeiros
Replies: 15
Views: 21233
|
Forum: General CCS C Discussion Posted: Thu Aug 10, 2023 8:34 am Subject: Ethernet system architecture help |
If the CCS stack supports both the PIC18FxxJ6x family and the ENC28J60 then it does not matter which you choose. Having said that, the Microchip ENC424j600 far superior to either of these. The ENC ... |
Topic: Ethernet system architecture help |
demedeiros
Replies: 15
Views: 21233
|
Forum: General CCS C Discussion Posted: Thu Aug 10, 2023 6:59 am Subject: Ethernet system architecture help |
I did a system a little while ago, where we used a packet as a
form of plug and play network addressing.
The standard CCS stack was used, and setup to use a fixed IP read from
it's internal EEPROM. ... |
Topic: Ethernet system architecture help |
demedeiros
Replies: 15
Views: 21233
|
Forum: General CCS C Discussion Posted: Tue Aug 08, 2023 7:02 am Subject: Ethernet system architecture help |
Short answer: the age of the stack. CCS' is very old, and Microchip's wasn't. You're going to have issues, but there isn't a clear winner in terms of which implementation to go with. If we had to do i ... |
Topic: Ethernet system architecture help |
demedeiros
Replies: 15
Views: 21233
|
Forum: General CCS C Discussion Posted: Mon Aug 07, 2023 11:38 am Subject: Ethernet system architecture help |
ok, I'm kinda confused with the 'hardware'.....
is it this ?
underwater.........................................:: on the ship
sensors->PIC--->eth-net---> PC--->fibre----> topside ... |
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