Thanks Steve, you have hit the nail right on. I once had CRT with a wavy screen 50Hz, mounted in a 19" rack with some other equipment. The box right below the...
Frank
linktek@...
Oct 1, 2005 9:39 am
11839
Hi, I'm workin' a MC9S12DT128 on my testcard with Code Warrior true-time debugger and a P&E USB-ML-12 rev A multilink and the derivative to select for is non...
I am a realtive novice in the world of embedded systems and I have recently bought myself an Elektronikladen, MC9S12DG256C powered CardS12 board. I have...
Hi, I am working on MC9SNE64 in narrow expanded mode with BDM multilink and code warrier.i am a 512k ram externally. I hav prob to set up in this mode to...
Hi to all: I just got my new Dragon12 board, and have been trying to download the "test" program. I can communicate via the "terminal" window in asmIDE, but...
... try to ... Like the helpfile says, you have to give your board the LOAD command before doing the download. If you're on the newest release you can also use...
Sorry, I don't understand what you means by "generate different duty cycles at particular delay time"... In my application, I use timers, and sometime an ISR...
Sorry, I don't know dg256 version. I started to work with DP256 about one year ago. For DP256 I use, I see on "MC9S12DP256B device user guide" that this ...
Hi all, I'm working on a HCS12 trying to store data in the onboard flash. I've written a function in C to erase a sector of flash which i can step through but...
... Maybe because you cannot read from FLASH while erasing/programming, and executing your program straight from FLASH is just reading during erasing. You need...
... That plus you also will get this if your S19 file contains unwritable memory regions. ... // richard (This email is for mailing lists. To reach me...
Thanks for that. What I guess I am really asking are the very basic things to have the CARDS12 and ICC12 talk to one another and for me to know how to refer to...
Hi, I'm using a HC9S12NE64 with a P&E USB Multilink, and CodeWarrior. From my reading I understand that I should be able to view all four 16K pages of flash at...
Hi Jam Jam The best book I can recomend you is the Valvano "Developing Embedded Software in C Using ICC11/ICC12/Hiware". Is a great book with a very good...
Hello, I'm using a MC9S12DG256 with a P&E USB Multilink, and CodeWarrior. External RAM in paged 0x8000 - 0xBFFF address range The following is my code to write...
I'm writing some FLASH programming code, and now I have reached final step of securing the microcontroller. Unsecured microcontroller has lower bits of byte at...
Hello all, While flashing I am getting the error "Fash programming error around address 0x000000" we are using Lauterbach TRACE32 debugger.Linker file is using...
Make sure your executing code is not located in the 0x8000-0xBFFF address range. Mike ... From: "johann_zimmermann" <jz@...> To:...
Michael Huslig
mhuslig@...
Oct 4, 2005 1:52 pm
11857
In my opinion the problem is with the linearization of the paged memory. As I remember the Trace32 treats e.g. 0x003E1234 as 0x1234 on page 0x3E. This is the...
Karoly Molnar
karoly.molnar@...
Oct 4, 2005 3:04 pm
11858
Michal, From what little I know about reverse engineering practices, I would guess that the most secure setting for $ff0e is 0bxxxxxx01. That way, an attacker...
Stephen Trier
sct@...
Oct 4, 2005 3:37 pm
11859
Hi folks, Is it my understanding that if I erase an HCS12's FLASH, but not its EEPROM, and then reset the device before programming the security byte (0xFF0F)...
... Having erased flash and non-empty eeprom, and reseting the part into single chip special mode, BDM will come out of reset as disabled (BDMSTS.ENBDM == 0)...
Hans, The best explanation of flash and EEPROM programming protection and security is in Freescale's application note AN2400/D. Its well worth reading. It...
... Indeed, it's suggested to secure the chip by changing 0bxxxxxx10 into 0bxxxxxx01. I must admit I didn't think about reverse engineering risk and such bit...
More personal experience, below: Steve Russell Nohau Emulators ... I believe that the above is correct. ... I experienced at least 2 different behaviors on...
I havent tried the 27-step process yet (I'm not using 3rd party software), but I will. The bahavior I'm seeing is that all was fine and dandy until I erased...
Hans, Questions and notes below. Steve Russell Nohau Emulators ... Can you try just reading and writing to flash control registers without referring to any...
If you are using a P&E compatable BDM interface, there is a free unsecure_12 program you can download to unsecure your device. Most other interface vendors...
Hi, I'm using the overflow interrupt to count delays up into the seconds. I'm having trouble figuring out how I can use the overflow counter to count into the...
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