??? 05/04/05 08:27 Read: times |
#92865 - LPC935 Responding to: ???'s previous message |
Hi Jan,
Yes i now use LPC935 and I am aware of the difference. I do not have a parallell programmer or an ICP programmer. Thats why i am not sure that FM should not respond to the chip at all if the ISP-recieve character is XORd. however i think that the orignal boot is not been changed, but FM even asks if i am sure to currupt the ISP boot, then it says programmed, and if FM agian wants to communicate, it just communicates well./ Any other clue? I am really stuck, but maybe i am going to try something else. Jan do you have experience with IAP? I found a method to write user flash in application on keils website. The data to be programmed are recieved by the UART then, encrypted and then placed in the user memory. User memory adress requires an adress which can be read from the HEX file and the amount of data for that sector. How to place the byte received from the UART in an array(or pointer)? best regareds Khaled |
Topic | Author | Date |
ISP-AES(or other tiny encryption)for LPC | 01/01/70 00:00 | |
so it works? | 01/01/70 00:00 | |
re so it works? | 01/01/70 00:00 | |
could it be | 01/01/70 00:00 | |
TEA | 01/01/70 00:00 | |
re could it be? | 01/01/70 00:00 | |
double-xor | 01/01/70 00:00 | |
LPC935 | 01/01/70 00:00 | |
TEA | 01/01/70 00:00 | |
Tea time! | 01/01/70 00:00 | |
TEA time ;) | 01/01/70 00:00 | |
More tea![]() | 01/01/70 00:00 | |
Please clarify requirements | 01/01/70 00:00 | |
what i want, Dan | 01/01/70 00:00 | |
Looks like you are set then | 01/01/70 00:00 | |
to Dan | 01/01/70 00:00 | |
Re: to Dan | 01/01/70 00:00 | |
Mode of operation | 01/01/70 00:00 | |
I underdstand now., thanks | 01/01/70 00:00 | |
better done in hardware | 01/01/70 00:00 | |
what about this? | 01/01/70 00:00 | |
what are you making | 01/01/70 00:00 | |
theft has to be prevented | 01/01/70 00:00 | |
either or | 01/01/70 00:00 | |
FM is just a "vehicle"... | 01/01/70 00:00 | |
but a diesel | 01/01/70 00:00 | |
it's easy | 01/01/70 00:00 | |
again, why | 01/01/70 00:00 | |
unsecure? | 01/01/70 00:00 | |
yes | 01/01/70 00:00 | |
Individual sector security bits removal | 01/01/70 00:00 | |
lockbits | 01/01/70 00:00 | |
Now i understand! | 01/01/70 00:00 | |
same thing | 01/01/70 00:00 | |
what am i making? | 01/01/70 00:00 | |
be careful | 01/01/70 00:00 | |
why GSM? | 01/01/70 00:00 | |
FM | 01/01/70 00:00 | |
FM | 01/01/70 00:00 | |
for the xor method to work | 01/01/70 00:00 | |
RC4 | 01/01/70 00:00 | |
RC4 | 01/01/70 00:00 | |
A reminder | 01/01/70 00:00 | |
encryption | 01/01/70 00:00 | |
pgpi.org | 01/01/70 00:00 | |
ok thanks jez | 01/01/70 00:00 |