Stef wrote:
> In comp.arch.embedded,
> Pelos @ Home <pelos@pelos.pl> wrote:
> 
>>Hi,
>>I'm going to fire-up my RM9200 board.
>>I see that CPU is sending letter (but not XModem "CCCCC") on DBG-UART. 
>>The problem is that CPU is doing it to fast - one bit of that char tooks 
>>about 4,56us - I'm thinking that something wrong is with PLL.
>>Can somebody be so kind and measure for me the amplitude on 18,432MHz 
>>crystal pins and the voltage on PLL-RCA and PLL-RCB pins ?
>>
> 
> Sorry no time to measure it now. But I also had problems getting the right
> xmodem char. Which was usually solved by pressing reset again. This chip 
> really needs a long power-up reset (> 1s). This is in the datasheet but
> I had missed it first time. When I changed my POR circuit, the problem
> was solved.
> 
Hi Stef,
Thanks a lot !
It works fine :)
Now I'm trying to flash my SPI DataFlash.

Best regards,

-- 
Pelos
http://www.pelos.pl

Stef wrote:
> In comp.arch.embedded,
> Pelos @ Home <pelos@pelos.pl> wrote:
> 
>>Hi,
>>I'm going to fire-up my RM9200 board.
>>I see that CPU is sending letter (but not XModem "CCCCC") on DBG-UART. 
>>The problem is that CPU is doing it to fast - one bit of that char tooks 
>>about 4,56us - I'm thinking that something wrong is with PLL.
>>Can somebody be so kind and measure for me the amplitude on 18,432MHz 
>>crystal pins and the voltage on PLL-RCA and PLL-RCB pins ?
>>
> 
> Sorry no time to measure it now. But I also had problems getting the right
> xmodem char. Which was usually solved by pressing reset again. This chip 
> really needs a long power-up reset (> 1s). This is in the datasheet but
> I had missed it first time. When I changed my POR circuit, the problem
> was solved.
> 
Hi Stef,
Thanks for your suggestion. I will check it :-)

-- 
Pelos
http://www.pelos.pl

In comp.arch.embedded,
Pelos @ Home <pelos@pelos.pl> wrote:
> Hi,
> I'm going to fire-up my RM9200 board.
> I see that CPU is sending letter (but not XModem "CCCCC") on DBG-UART. 
> The problem is that CPU is doing it to fast - one bit of that char tooks 
> about 4,56us - I'm thinking that something wrong is with PLL.
> Can somebody be so kind and measure for me the amplitude on 18,432MHz 
> crystal pins and the voltage on PLL-RCA and PLL-RCB pins ?
>
Sorry no time to measure it now. But I also had problems getting the right
xmodem char. Which was usually solved by pressing reset again. This chip 
really needs a long power-up reset (> 1s). This is in the datasheet but
I had missed it first time. When I changed my POR circuit, the problem
was solved.

-- 
Stef    (remove caps, dashes and .invalid from e-mail address to reply by mail)

Hi,
I'm going to fire-up my RM9200 board.
I see that CPU is sending letter (but not XModem "CCCCC") on DBG-UART. 
The problem is that CPU is doing it to fast - one bit of that char tooks 
about 4,56us - I'm thinking that something wrong is with PLL.
Can somebody be so kind and measure for me the amplitude on 18,432MHz 
crystal pins and the voltage on PLL-RCA and PLL-RCB pins ?

thanks a lot!

-- 
Pelos
http://www.pelos.pl