Hi Dave,

Thanks for your understanding and kindness.

It was my mistake when acquired information for several issues.

In regard to your post:

1. Is your project hardware already designed?

Yes or No, not with ADuC845/7/8 controller. Actually, I have been working on ATmega32 controller (10 channel - 10 bit ADC) for this project, but only to find out that the accuracy is not good enough. I cannot get the reading of any where near 5mV above or below the true reading as calculated (5000mV/1024 = 4.8828mV/count)for the reading range 0-5V.

When I find out about ADuC845/7/8, I decided that either of ADuC847 (24 bit ADC) or ADuC848 (similar to ADuC847, but 16 bit ADC) would be good enough. I have ordered the evaluation board(EVAL-ADUC847QSZ) and will probably receive it next week.

2. Which processor voltage will you use?
5V (ADUC847BSZ62-5)

3. Which LCD will you use?
2x16 standard character

4. Which flash memory device will you use?
No, I don't acquire the data so often and store a lot of data. I only need to store 5 to 10 reading in the 4K Flash/EE memory of ADuC847. I have programmed EEPROM, Nand flash, etc... but never on this type of memory

I think I am OK with LCD configuration, a bit trouble with ADC conversion (to make sure it's right) and
Flash/EE memory read/write. The problem is I have spent too much time on the ATmega32 controller and now running out of time to complete the project.
Any advice from you guy would be very much appreciated!