Atmel AVR1909 manual

1
2
3
4
5
6
7

Go to page of

A good user manual

The rules should oblige the seller to give the purchaser an operating instrucion of Atmel AVR1909, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.

What is an instruction?

The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of Atmel AVR1909 one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.

Unfortunately, only a few customers devote their time to read an instruction of Atmel AVR1909. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.

What should a perfect user manual contain?

First and foremost, an user manual of Atmel AVR1909 should contain:
- informations concerning technical data of Atmel AVR1909
- name of the manufacturer and a year of construction of the Atmel AVR1909 item
- rules of operation, control and maintenance of the Atmel AVR1909 item
- safety signs and mark certificates which confirm compatibility with appropriate standards

Why don't we read the manuals?

Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Atmel AVR1909 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Atmel AVR1909, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Atmel service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Atmel AVR1909.

Why one should read the manuals?

It is mostly in the manuals where we will find the details concerning construction and possibility of the Atmel AVR1909 item, and its use of respective accessory, as well as information concerning all the functions and facilities.

After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.

Table of contents for the manual

  • Page 1

    AVR1909: Display Xplained Hardware User's Guide Features • 240 x 320 (QVG A) graphical TFT display - Wi th resisti ve touch - LED Backlight - Internal controller • Simple SPI interface for control • Digital (PWM) control interface for backlight • One 40pin, 0.5mm FPC connector • Display and ba cklight po wered by single 3.3V 1 Introd[...]

  • Page 2

    2 AVR1909 8297A-AVR-04/10 2 Related Items Datasheet for the LCD module (ET0240 06DHU) from EDT can be found here: http://www.farnell.com/datasheets/86386.pdf Datasheet for the graphical controll er (HX8347-A) from Himax can be obtain ed b y contacting EDT. It may also found on the web. Firmware for Xplain kit can be found here: http://www.atmel.com[...]

  • Page 3

    AVR1909 3 8297A-AVR-04/10 The Display Xplained module i s quite simple. It basically conne cts the TFT display SPI interface, resistive touch inte rface, and backlight interface from a 40pin FPC connector to two female pin-he aders that fit the Xplain kit. In addition it has a program/debug interface t hat will connect an external programmer/debu g[...]

  • Page 4

    4 AVR1909 8297A-AVR-04/10 3.4 The SPI interface The Display Xplained module uses a simple SPI interface to communi cate with the LCD module. This consist of a Chip-S elect (CS) line, a clock line (SCL), and two data lines (SDI/SDO). The SPI is operated in mode 3, i.e. inactive clock is ‘high’, and data is latched on rising cloc k edge. 3.5 The [...]

  • Page 5

    AVR1909 5 8297A-AVR-04/10 directly to the header. If it is desired to use P DI programming/debugging an a dapter or squid cable (in cluded in the JTAGIC E mkII kit) must be used. Please see Table 4-1 belo w for pin-out description. Table 4-1. Programming headers (J103/ J104) – JTAG and PDI. J103/J104 pin JTAG (1) PDI (2) J103/J104-1 TCK - J103/J1[...]

  • Page 6

    6 AVR1909 8297A-AVR-04/10 4.3 The SPI/TE/Reset/backli ght pin-header (J102) This connector conne cts to the display’s SPI interface and backlight to the AVR XMEGA’s digital PORTD t hat is available on the “AV R XMEGA PORT D” pin h eader on the Xplain board(J102). Please see Table 4-3 page below for pin-out description. Table 4-3. The SPI/TE[...]

  • Page 7

    8297A-AVR-04/10 Disclaimer Headquarters International Atmel Corporation 2325 Orchard Parkway San Jose, CA 95131 USA Tel: 1(408) 441-0311 Fax: 1(408) 487-2600 Atmel Asia Unit 1-5 & 16, 19/F BEA Tower, Millennium City 5 418 Kwun Tong Road Kwun Tong, Kowloon Hong Kong Tel: (852) 2245-6100 Fax: (852) 2722-1369 Product Contact Atmel Europe Le Krebs [...]