MikroC & SD CARD & PIC18F4520

[Linspire]

Are you asking me to change the config bits setting by refering project from mikroC MMC example ?

 

[Mahesh22]

what version of mikroC you are using.? but I dont believe the error is logical...

I am using Mikro C pro Version 5.01

 

[romel_emperado]

im not asking you to change but I asked you to post your settings so that we can check the settings.. read my links to know what is configuration bits or download the datasheet of your device..

**broken link removed**

 

[Linspire]

I'm curious something for the port C for my SD card connections.

For port RC5 & RC2 should be 1, RC4 & RC3 should be 0.
I confirmed this by referring the datasheet.
But in the code example doesn't not show configuration bits except CS - RC2.



These diagram configuration bits shown in my project file.

 

[romel_emperado]

configuration bits/fuses is not a PORT .. sorry but Im not a mikroC user.. did yo read my link about how to edit the config fuses in your compiler?

in MPlab IDE using Hi-tech C compiler we set confiuration bits/fuses like this

__CONFIG(1,OSC_HS);
__CONFIG(2,PWRT_ON & BOR_OFF & WDT_OFF);
__CONFIG(4,DEBUG_OFF & STVR_OFF);

---------- Post added at 09:32 ---------- Previous post was at 09:25 ----------

__CONFIG(1,OSC_HS); - means external high-spead oscillator

__CONFIG(2,PWRT_ON & BOR_OFF & WDT_OFF); - power up timer off, brownout reset off, watchdog timer off

something like this... you can find this in your compiler

 

[Linspire]

I have posted diagram of my project configuration bits. Post replies #44

 

[romel_emperado]

okay I see it now.. it is wrong settings.. :-D

are you using external crystal or builtin oscillator?

 

[Linspire]

okay I see it now.. it is wrong settings.. :-D

are you using external crystal or builtin oscillator?

External or Built oscillator ? How'd I know ?
Sorry, I'm not good in microcontroller.

 

[romel_emperado]

okay I see it now.. it is wrong settings.. :-D

are you using external crystal or builtin oscillator? if yes then follow this

check this image

 

[romel_emperado]

crystal is something like this

**broken link removed**

if you use this configure it for external oscillator

 

[Linspire]

OMG..I'm truly sorry that I didnt connect anything in CLKIN of my PIC18f4520.
Can I use internal pic18f4520's oscillator ?
How do I make it ?

***I realized although I didn't connect any oscillators in Proteus, yet still can display correct output.

 

[romel_emperado]

yes.. but Im not sure how to set it in mikroC im not good in microcontroller also I just learned yesterday :roll: :-D :roll: :-D :roll: :-D :roll: :-D :roll: :-D

try EC-PORT on RA6 for internal oscillator :roll: :-D :roll: :-D :roll: :-D :roll: :-D

 

[Linspire]

Well, any links for learning these internal oscillator ?

 

[romel_emperado]

use the datasheet..
and this

**broken link removed**

it's different device but you should know the concept from it..

 

[Linspire]

I find something weird; in proteus, although there is no oscillator connected to CLKIN, and yet it can initialize successfully.

 

[romel_emperado]

yes.. as expected.. it's normal in proteus.

 

[Linspire]

Anyone know how to setup PIC itself 's oscillator correctly for PIC18F4520 from MikroC pro ?

 

[romel_emperado]

did you try my suggestion?

make a blinking led program and do it in actual hardware. make it work.. play with all the settings.. and that is called experimentation for learning...

if manage to blink a LED using internal oscillator then apply it to your sd card project..

It's nice to learn in step by step process you will get the detailed learning

 

[Linspire]

did you try my suggestion?

make a blinking led program and do it in actual hardware. make it work.. play with all the settings.. and that is called experimentation for learning...

if manage to blink a LED using external oscillator then apply it to your sd card project..

It's nice to learn in step by step process you will get the detailed learning

Ok. I want verify the oscillator specs :
1) In order to use Quartz Crystal,Ceramic Resonator,External Oscillator : These required capacitor and external oscillator to operate it.
2) Whereby RC Oscillator : It uses resistors and pic controller itself oscillator to operate it.

Are my understanding for these specs correct ?

 

[romel_emperado]

yes.. the clearer diagram is in the link I gave you previously..