RE: 52235/52230 problem

Hi Sanjay,

Looking at the schematics I have two observations:

1-     Not sure the BDM signals are mapped appropriately (I do not understand the SS/SS1/SS2/LEDDATA/LEDCLK signals) but assume that since you are seeing the code flashed OK it is just an issue on my part with reading your schematic format.

2-     Your Ethernet PHY_VDD's and PHY_VSS's are connected to analog ground.  I wonder if that could be causing issue with the PLL.  The Freescale schematics have those signals going to digital ground.

 

Can you single step to "C" or assemble code?

 

Regards, 

David 

 

David E Seymour

________________________________

From: [email protected] [mailto:[email protected]] On Behalf Of Sanjay Morab
Sent: Wednesday, January 30, 2008 10:19 AM
To: Seymour David
Subject: Re: [ColdFire] 52235/52230 problem

 

Dear David

 

Yes the flash is programmed and varified. Also I had written small code and tested. I had checked with SRAM also but the result is same. The Code is downloaded to SRAM but no execution. On EVB same codes are working in SRAM as well as FLASH

Sanjay Morab

 

Accord Electronics
50, Rashmi Industrial Estate,
Vasai Industrial Area,
Navghar, Vasai Road(e),
Dist. Thane
Pin - 401210
Ph -+91-250-3240050
      +91-250-2391407
Fax - +91-22-28400579
H.P. - +91-9324895103

	----- Original Message ----- 

	From: Seymour David <mailto:[email protected]>  

	To: Sanjay Morab <mailto:[email protected]>  

	Sent: Wednesday, January 30, 2008 8:25 PM

	Subject: RE: [ColdFire] 52235/52230 problem

	 

	Hi Sanjay,

	Are you certain you are programming the flash?  After programming best to peek at memory to verify that the core really was programmed into flash.

	Also good to test using small piece of code to load directly to SRAM and try running/debugging to test the tools.

	Regards, 

	David 

	 

	David E Seymour

	
________________________________


	From: [email protected] [mailto:[email protected]] On Behalf Of Sanjay Morab
	Sent: Wednesday, January 30, 2008 2:37 AM
	To: Seymour David
	Subject: Re: [ColdFire] 52235/52230 problem

	 

	Dear Mark

	 

	I had cheked the the VDD1 and VDD2 supplies. Vdd2 it is 2.5 and on VDD1 I am getting frequency instead of clean DC. I had used 0.22 uF decoupling as used in EVB. This consistant problem I am facing is The File gets downloaded to the MCF52230 but does not execute. All three board I had assembled does the same. 

	 

	 

	Sanjay Morab

	 

	Accord Electronics
	50, Rashmi Industrial Estate,
	Vasai Industrial Area,
	Navghar, Vasai Road(e),
	Dist. Thane
	Pin - 401210
	Ph -+91-250-3240050
	      +91-250-2391407
	Fax - +91-22-28400579
	H.P. - +91-9324895103

		----- Original Message ----- 

		From: Mark Butcher <mailto:[email protected]>  

		To: Sanjay Morab <mailto:[email protected]>  

		Sent: Monday, January 28, 2008 4:02 PM

		Subject: AW: [ColdFire] 52235/52230 problem

		 

		X-SpamDetect-Info: ------------- Start ASpam results ---------------
		X-SpamDetect-Info: This message may be spam. This message BODY has been altered to show you the spam information 
		X-SpamDetect: ****: 4.300000 From3consonants=3, Some html comments=0, Aspam=0
		X-SpamDetect-Info: ------------- End ASpam results -----------------
		 

		Sanjay

		 

		I recommend using the Layout guide in the following Freescale Application Note: AN2759 [it is for the NE64 but suitable also for the Coldfire]
		 

		 http://www.freescale.com/files/microcontrollers/doc/app_note/AN2759.pdf?fpsp=1&WT_TYPE=Application%20Notes&WT_VENDOR=FREESCALE&WT_FILE_FORMAT=pdf&WT_ASSET=Documentation

		 

		The MC9S12NE64 has a heat sink area on the bottom of the chip which is used to help dissipate heat (from the PHY) to the board. This isn't available on the M5223X and so it does tend to run a little hot.

		Check the core supply voltage on VDD1 and VDD2 - it should be decoupled with capacitors and measure about 2.5V. I did have a board (M52233) which suddenly stopped working and this voltage was too low - it became very hot. After replacing the chip the board worked correctly again.

		 

		Good luck

		 

		Regards

		 

		Mark

		 

		 

		 

		Mark Butcher Bsc (Hons) MPhil MIEE

		 

		M.J.Butcher Consulting                

		Obere Bahnhofstr. 13,  CH-5507 Mellingen,

		Switzerland         www.mjbc.ch <http://www.mjbc.ch/>  / www.uTasker.com <http://www.utasker.com/> 

		056 491 48 10 / 079 402 26 37 / Skype: M_J_Butcher

		<http://www.uTasker.com>  

		 

		 

		-----Ursprüngliche Nachricht-----
		Von: [email protected] [mailto:[email protected]] Im Auftrag von Sanjay Morab
		Gesendet: Montag, 28. Januar 2008 03:04
		An: [email protected]
		Betreff: Re: [ColdFire] 52235/52230 problem

		 

		Dear Mark

		 

		One information also required.

		 

		When we are using the two layer board for the ETHRNET what should be trace width and separation required from out put of the Magnatics to RJ45 connector as those two pairs are connected as differntial pair.

		 

		 

		regards

		Sanjay Morab

			 

		[email protected] Send a post to the list. [email protected] Join the list. [email protected] Join the list in digest mode. [email protected] Leave the list. [email protected] Send a post to the list. [email protected] Join the list. [email protected] Join the list in digest mode. [email protected] Leave the list.

	[email protected] Send a post to the list. [email protected] Join the list. [email protected] Join the list in digest mode. [email protected] Leave the list. [email protected] Send a post to the list. [email protected] Join the list. [email protected] Join the list in digest mode. [email protected] Leave the list.

[email protected] Send a post to the list. [email protected] Join the list. [email protected] Join the list in digest mode. [email protected] Leave the list.