Zdenek Krejci wrote:
> Hi guys Im new to ARM and have just hopely not big problem but somehow I
> canot findout
> 1) I did buy a board from OLIMEX
which one?
> 2) Downloaded lpc21isp
> 3) And finaly downloaded sample HEX from OLIMEX :-)
>
> when Im trying to load the hex into ADUC it just says no answer :-(
>
>
> the command Im using on my Ubuntu is:
>
> lpc21isp firmware.hex /dev/ttyUSB0 115200 32.758
Parameter -ADARM missing.
Is /dev/ttyUSB0 assigned to the used COM-Port/USB-UART-converter by the
system?
> Im not sure about the frequency because ,on the crystal it says 32.758
> which is I would say 32 MHz and 768kHz or not?? Is it maeby just the
> problem?
The crystal is 32kHz (k not M), the PLL will generate the core-clock
(ca. 45MHz IRC). If remembered correctly the frequency is not needed by
the ADuC702x-bootloader.
Also try with lower "baudrates" during tests (start with 9600). Use
-debug parameter to get verbose outputs.
> As well please if you would help me with buttons bec there on Olimex is
> no doc tu explain how to use the buttons SD,RS,B1,B2 maybe they needs to
> be push during programing??
From the ADUC7026 manual: "The ADuC702x will enter serial download mode
after a reset or power cycle if the BM pin is pulled low through an
external 1kOhm resistor." On Olimex P7026 BM is connected to button SD.
Just read the schematic and the manual.
If there are still problems try with the download-utility from Analog
Devices on a MS Windows system to check if hardware and connections are
o.k.
The lpc21isp yahoo-group might be a better place to ask.