Comments for Engscope

Comment on 07 Interrupts by jliu83

jliu83 — Thu, 09 Feb 2012 21:20:55 +0000

@Ajaya. If you need an absolute time for an interrupt to execute, you need you write your code in assembly, NOT C. Depending on the code construction and the optimization level, and also which compiler you are using (you might be using HiTech’s compiler rather than C30 for example), the resulting code will execute differently. When timing is absolutely critical and you need to count cycles, then don’t bother with C.

-J

Comment on 07 Interrupts by AJAYA KUMAR S

AJAYA KUMAR S — Thu, 09 Feb 2012 13:39:14 +0000

Can you please how much time will be taken to detect the interrupt and then execute?

Comment on 14.3 Setting up the USB Framework by jliu83

jliu83 — Sat, 04 Feb 2012 14:03:12 +0000

@Alfredo, you must be referring to this portion of the code.

_CONFIG2(IESO_OFF & PLLDIV_DIV2 & FNOSC_PRIPLL & FCKSM_CSECMD \
	& IOL1WAY_OFF & OSCIOFNC_OFF & POSCMOD_EC)
		//secondary oscillator off
		//set pll to 24Mhz
		//use fast RC
		//disable clock switching
		//use osco
		//unlimited writes to RP
		//disable primary oscillator

The comments don’t align with the code. We are actually using the primary external as the symbol FNOSC_PRIPLL is used.

Comment on PIC24 Tutorial by jliu83

jliu83 — Thu, 02 Feb 2012 19:26:26 +0000

@Nace. Hmm.. Yes.. I would like a copy of the pdf version as well! Let me know if you find it.

Well, I’ll look into it. I think most people want more content and not just pdfs.

-J

Comment on PIC24 Tutorial by Nace

Nace — Thu, 02 Feb 2012 18:56:54 +0000

Hello!

First of all, thank you a lot for this awesome tutorial. Is it possible to get PDF version of it, since I would love to have it on my e-reader?

Thank you again, Nace