Hi, Please let nme know if I am right: If I use PIC18LF4520 (insead of PIC18F4520), and supply it with 3.3 VDD can I interface SD card directly ?(without voltage deviding resistors as it is with MMC/SD board). Seems like so, because PIC18LF4520 VOL = 0.6 max, VOH = 2.6 min and VIL = 0.66 max and VIH...

Hi, Please let nme know if I am right: If I use PIC18LF4520 (insead of PIC18F4520), and supply it with 3.3 VDD can I interface SD card directly ?(without voltage deviding resistors as it is with MMC/SD board). Seems like so, because PIC18LF4520 VOL = 0.6 max, VOH = 2.6 min and VIL = 0.66 max and VIH...

.. tried 10k pull-up on easypic , does not work. will try other resistors when have more time, or will use singlechannel capless tranceiver...

thanks.
b.m.

is this the way the pull-up would look like?? ------------ | | VCC | TTL DEVICE | | _________________ | PIC |_ | | | _| TX PIN |_|------+----| >= 1k resistor |-------------------|_|RC7 PIN | |_________________| | | | ____________|

Hi I did not have a 1k resistor handy.... and I do not know the connection scheme for the pull-up resitor you mentioned. I did have a TTL to RS232 converter soldered earlier (MAX + 5 caps), so I used it in a way that for you, electronics gurus, might seem real funny (stupid :D ) - i used it as TTL p...

I've just read my message and realised that I was not clear enough :oops: . I connect the device's TX line directly to RC7 pin. RC7 is PIC18F452 USART's RX. Than I set jumper JP6 on RC6 only (RC7 jumper is removed) to forward USART's TX through MAX, so I can see the output on terminal. (USART TX is ...

.. I use PIC18F452, with built in USART... TX on RC6, RX on RC7

Hi, I am with a question again.. I have a device transmitting and receiveing data in TTL logic (once a second it sends a packet of 230 bytes, 9600, 8 bits,1stop bit, no parity,no handshaking). I tried to connect the device's lines to RC6 and RC7 pins (and device's GND to EasyPIC's GND). and used USA...

thanks,

here is what uC manual says:
...confusing a bit.
b.m.

Hi could anybody try these examples...? question1: why when execution goes to line 9 var2 equals to 0; Use debugger watch window to see this. Is this the debugger problem or compiller?. unsigned int var1 = 120; unsigned int var2 = 25; char txtBuff[5]; void main() { WordToStr(var1, txtBuff); WordToSt...

what is really weird in this sad story that it worked jus as it is supposed to.
I checked all jumpers, everything....

..it is fat (not fat32)

should I try new mmc/sd board or the board and new easypic. after all will it work for once again or longer...

will try to get another sd.

Hi, Have been waiting for the respond from the support team for two days, can't anymore... here is my problem: heve the following: 1. EasyPIC3 (H/W Rev 3.02) 2. MMC/SD Card board (HW Rev. 1.02) 3. MikroC Ver. 5.0.0.3 3. SanDisk 256 and 512 Mbs SD cards 4. I use the project supplied with 5.0.0.3 comp...