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  Topic: DS18B20-PAR
Wizard

Replies: 1
Views: 5611

PostForum: General CCS C Discussion   Posted: Sun Jun 18, 2006 8:37 am   Subject: DS18B20-PAR
Hi guys,
I'm using a DS18B20 in parasite power mode. I saw the new model DS18B20-PAR, which is the same but have the connection between the GND and Vcc pins within the component. So there the pin of ...
  Topic: USB enumerated sense function
Wizard

Replies: 2
Views: 5721

PostForum: General CCS C Discussion   Posted: Tue Jun 06, 2006 5:16 am   Subject: USB enumerated sense function
Hi there, I'm using a 18F4550 with an USB connection.

I have came to the conclusion that If I don't use the sense pin (100k resistor to ground and 100k to the pin, from the Vbus), the

usb_enumer ...
  Topic: MMC SPI interfacing
Wizard

Replies: 8
Views: 14686

PostForum: General CCS C Discussion   Posted: Thu Mar 30, 2006 1:14 am   Subject: MMC SPI interfacing
Thanks for the point, I think you mean that I dont need voltage divider in the #define MMC_DI PIN_B0 Line, which it's the data output of the MMC. That's how I have the circuit.

Thanks for the point ...
  Topic: Problem declaring a pointer
Wizard

Replies: 1
Views: 4672

PostForum: General CCS C Discussion   Posted: Wed Mar 29, 2006 4:22 pm   Subject: Problem declaring a pointer
I have no idea why I can't compile the following var declaration, I'm going to use it to display a menu in a LCD.

char *menu[]=
{
" Start/Stop Sample",
"Show ...
  Topic: is SD backwards compatible with MMC?
Wizard

Replies: 6
Views: 9072

PostForum: General CCS C Discussion   Posted: Wed Mar 29, 2006 3:05 am   Subject: is SD backwards compatible with MMC?
I dont have experience with SD cards, but that is what I have read.

The mmc_spi driver doesnt use the SPI hardware module, in spite of that it implements the SPI by software. To send your owns comm ...
  Topic: is SD backwards compatible with MMC?
Wizard

Replies: 6
Views: 9072

PostForum: General CCS C Discussion   Posted: Wed Mar 29, 2006 2:27 am   Subject: is SD backwards compatible with MMC?
Hi,
The SD cards are SPI compatibles as the mmc cards, and it uses 7 lines as the mmc, so the socket for the mmc will work. But to reset the SD card and set it in SPI mode, you will have to use other ...
  Topic: MMC SPI interfacing
Wizard

Replies: 8
Views: 14686

PostForum: General CCS C Discussion   Posted: Wed Mar 29, 2006 2:18 am   Subject: MMC SPI interfacing
I know the interfacing circuit doesn't compile with the mmc specification, but I'm using the PIC18F4550 running on 5V. So I can't connect the mmc card spi lines directly with the pic pins with the pul ...
  Topic: MMC SPI interfacing
Wizard

Replies: 8
Views: 14686

PostForum: General CCS C Discussion   Posted: Tue Mar 28, 2006 6:06 am   Subject: MMC SPI interfacing
It was me, I forgot to login before to post.

Waiting for any ideas ot information about the issue and mmc staff
  Topic: MMC SPI interfacing
Wizard

Replies: 8
Views: 14686

PostForum: General CCS C Discussion   Posted: Mon Mar 27, 2006 2:55 pm   Subject: MMC SPI interfacing
Hi there!

I'm adding a mmc card to my data adquisition project. I'm using a pic18f4550 with usb conection implemeted. I use a 1.8k and 3.3k voltage divider circuit to convert the 5V from the pic t ...
 
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