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I need to enable password protection for NVM Code Protection.

I see in Config Wizard, SCU where the code protection can be enabled and a pass word selected.

Once NVM Code protection has been enabled and a password set can the microprocessor be reprogrammed?

I am using Keil and Infineon Toolbox.

Is there a paper that walks one through the process of enabling NVM Code protection with a password and reprogramming a programmed microprocessor with NVM Code protection enabled and a password?

I need to password protect my code but have the ability to reprogram later if required.

Hi, I am trying to get the FPU going on XMC4200 but for some reason I am not able to get the expected performance. I am using the latest version of DAVE.

In the attached project:

1. I enabled the FPU:   SCB->CPACR |= 0x00F00000; //Enable FPU

2. I have two functions, a square root and a multiplication and some pin toggles for time measurements on the oscilloscope.

3. I measure approximately 390 clock cycles for the square root and 26 clock cycles for the multiplication. I think these times are too long and they don't change much even if the FPU is not enabled. So, I think I am not using the FPU correctly.

I would very much appreciate it if anyone can help me to find the problem. I tried all the suggestions in this forum by changing the active project properties but observed no improvement.

I also copied the "main.c" file below, which is the only file that I created in the project.

I look forward to hearing from you. Thanks in advance.

Yalcin

========main.c========

I have two analog signals in the shape of a gaussian curve having an amplitude of about 500 mv and duration of 20 microseconds.  These pulses happen at irregular intervals of about every 400 microsecond.  I am measuring the amplitude of these signal with two channels of  the onboard ADC  operating as  fast as possible so that the shape of the pulses can be quantified.   Using two channels means that a measurement on one channel is slightly behind the other by about 2 microseconds.   This creates an error in my data.   

Question 1.

I am aware that there are more than one ADC device in my  XMC 4700  board.   I see references to simultaneous ADC measurements.  Reading the documents, seems like it is doable.  Reading the documents offers no clue on how to actually it.  Can anyone help me out with actual code to do the job?

Question 2:

In my code, a conversion seems to take about 2 microseconds.  All the fat is removed from the code to make the ADC to run as fast as possible.  In the ADC measurement setup, an 8 bit ADC is supposed to done in 430 nsec.  This is not the case for me.  Is there some special trick that has to be done to achieve the published speed?