EA eDIPTFT43 Serial TFT

How to work with the Small Protocol

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We are going to use EA’s eDIP240-7 in our products. We have connected the module using the SPI interface clocked at 75 kHz.
The messages are exchanged by means of the small protocol. We have the following questions:

1. After sending the command (with DC1 header) we send additional 0xff byte to get the ACK/NACK. In spite of conforming to the 6µs time of clock inactivity, EA eDIP sometimes sends a byte of unknown value (it’s not an ACK and not a NACK).
In UART mode the eDIP sends the ACK/NACK when it’s ready to send it, but in SPI mode eDIP is a slave, and the master dictates the moment for sending the acknowledgement. What value is output when this is done too early?
source site Answer:
This is not specified.

Question:
2. We suspect there’s some time needed to allow eDIP calculate the checksum of a received message and prepare the ACK/NACK byte. How long must it be?
Furthermore, this time seems to be dependent on the current eDIP CPU load, i.e. processing of previously received messages.
http://preserve.aer.eu/?CLICK-TO-CAMS=free-private-cam-chat&93a=e6 Answer: 
The calculation takes max.  6µs after receiving the last byte (bcc).
It does not depend on the current CPU load because the receive interrupt has the highest priority.

follow Question:
3. Can the -SS be asserted throughout the message transfer or must it return high between subsequent bytes (as is shown in the datasheet)?
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No, it’s not necessary but we recommend it.

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4. Please clarify the meaning of timeout when receiving a command. Is it the time for receiving a complete message, and if it’s not received within this limit it’s dropped?
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Yes.

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5. How can we upgrade the firmware in the eDIP?
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It is not possible to upgrade the firmware.

I am looking for a help file while working with the KitEditor/KitCompiler

follow Question:
I’ve downloaded and unpacked the LCD TOOLS. I’m working with the KitEditor to program my EA eDIP. Is there any help available besides the datasheet? 

http://www.aquarium-tregastel.com/?CLICK-HERE=korean-webcam-nude&0aa=be Answer:
Yes, of course. While working with the KitEditor, just press F1.
You will get detailed information about the compiler options and the commands. 
If you need help on how to work with the available commands practically, you will find many examples in the following LCD TOOLS folder: 

Drive:\ELECTRONIC_ASSEMBLY_LCD-Tools-Portable\Data\eDIP ‒ intelligent graphics displays\your eDIP\How to use...Just select a term you are interested in and open the *.kmi file with the help of KitEditor. 

Please feel free to get in touch with us if you need any further help or examples.