Subscribe to Our Youtube Channel
Related Manuals for Atmel AT91EB40
Summary of Contents for Atmel AT91EB40
- Page 1 AT91EB40 Evaluation Board ................User Guide Downloaded from Elcodis.com electronic components distributor...
- Page 2 Downloaded from Elcodis.com electronic components distributor...
-
Page 3: Table Of Contents
Electrostatic Warning ................2-1 Requirements....................2-1 Layout .......................2-1 Jumper Settings ..................2-2 Powering Up the Board................2-2 Measuring Current Consumption on the AT91R40807 ......2-3 Testing the AT91EB40 Evaluation Board ..........2-3 Section 3 The On-board Software ................ 3-1 Flash Memory Organization ..............3-1 3.1.1 Flash Write Access................3-1 3.1.2... - Page 4 Table of Contents Section 5 Appendix A – Configuration Links and SRAM Bank 1 ......5-1 Jumpers (LK2) ..................5-1 Surface Mount Links (LK1, LK3 - 9) ............5-1 Increasing Memory Size ................5-2 Section 6 Appendix B - Schematics..............6-1 Schematics ....................6-1 Downloaded from Elcodis.com electronic components distributor...
-
Page 5: Overview
Section 1 Overview Scope The AT91EB40 Evaluation Board enables real-time code development and evaluation. It supports the AT91x40 series with its various memory options. This guide focuses on the AT91 Evaluation Board as an evaluation and demonstration platform: 1. Section 1 provides an overview. - Page 6 Overview Figure 1-1. AT91EB40 Block Diagram AT91R40807 128K Byte 8K Byte SRAM Flash Extended SRAM JTAG ARM7TDMI Processor Connector Monitor Points AMBA Bridge Interrupt Counter Buttons LEDs Controller Timers Watchdog Serial RS232 Expansion Timer Ports Drivers Reset Points Controller Reset...
-
Page 7: Setting Up The At91Eb40 Evaluation Board
Setting Up the AT91EB40 Evaluation Board Electrostatic The AT91EB40 Evaluation Board is shipped in protective anti-static packaging. The Warning board must not be subjected to high electrostatic potentials. A grounding strap or similar protective device should be worn when handling the board. Avoid touching the compo- nent pins or any other metallic element. -
Page 8: Jumper Settings
Setting Up the AT91EB40 Evaluation Board Figure 2-1. Layout of the AT91EB40 Evaluation Board Jumper Settings LK2 is used to select the clock frequency and by default, is set to 32,768 MHz. For more information about this jumper and the various surface mount links, see Section 5, “Appendix A –... -
Page 9: Evaluation Board
Setting Up the AT91EB40 Evaluation Board Measuring The board is designed to generate the whole power supply of the AT91 device, and only the AT91 device, through the wirelink WL2. This feature enables measurements to be Current made of the current consumption of the AT91 device. - Page 10 Setting Up the AT91EB40 Evaluation Board AT91EB40 Evaluation Board User Guide Downloaded from Elcodis.com electronic components distributor...
-
Page 11: The On-Board Software
Angel, it cannot be saved itself. Once it is overwritten, the only way to restore the Flash is to use an EmbeddedICE. AT91EB40 Evaluation Board User Guide Downloaded from Elcodis.com... -
Page 12: Boot Software
3.1.3 Functional Test The FTS is a part of the boot software that allows testing of the AT91EB40. It is started Software (FTS) by the boot if the FIQ button is pressed at reset. At start of the FTS, the LEDs 1, 2 and 3 light up. -
Page 13: Angel Monitor
When Angel starts, it recopies itself into the SRAM in order to run faster. The SRAM used by Angel is from 0x02020000 to 0x02040000, i.e., the highest half of the SRAM. The Angel on the AT91EB40 can be upgraded regardless of the version programmed on it. - Page 14 The On-board Software AT91EB40 Evaluation Board User Guide Downloaded from Elcodis.com electronic components distributor...
-
Page 15: Circuit Description
Interface Note: The AT91EB40 is fitted with four 128K x 8 SRAM devices. The schematic also shows the bus expansion connector which, like the I/O expansion connector, is not fitted at the factory. The user can fit any 32 x 2 connector on a 0.1"... -
Page 16: Serial Interface
The size is approximately 4.5 inches square with four mounting holes, one at each cor- ner, into which feet are attached. The board has two signal layers and two power planes. AT91EB40 Evaluation Board User Guide Downloaded from Elcodis.com electronic components distributor... -
Page 17: Appendix A - Configuration Links And Sram Bank
A20 is used as the chip select for SRAM Bank 1. Should be in this position for 512K x 8 SRAMs Function Alternate boot mode NOT selected Alternate boot mode selected Note: Use a 10K resistor. AT91EB40 Evaluation Board User Guide Downloaded from Elcodis.com electronic components distributor... -
Page 18: Increasing Memory Size
AT91 TIOB1 input is from TIOB1 switch Increasing The AT91EB40 is supplied with four 128K x 8 byte SRAM memories. If, however, the Memory Size user needs more than 512K bytes of memory, the devices can be replaced with four 512K x 8 3.3V 15/20 ns SRAMs giving, in total, 2048K bytes. -
Page 19: Appendix B - Schematics
Section 6 Appendix B - Schematics Schematics The following schematics are appended: • Figure 6-1. AT91EB40 Evaluation Board • Figure 6-2. PCB Layout • Figure 6-3. External Bus Interface • Figure 6-4. JTAG Interface, Reset, Interrupts and LEDs • Figure 6-5. I/O Expansion •... -
Page 20: Figure 6-1. At91Eb40 Evaluation Board
Appendix B - Schematics Figure 6-1. AT91EB40 Evaluation Board AT91EB40 Evaluation Board User Guide Downloaded from Elcodis.com electronic components distributor... -
Page 21: Figure 6-2. Pcb Layout
Appendix B - Schematics Figure 6-2. PCB Layout AT91EB40 Evaluation Board User Guide Downloaded from Elcodis.com electronic components distributor... -
Page 22: Figure 6-3. External Bus Interface
Appendix B - Schematics Figure 6-3. External Bus Interface AT91EB40 Evaluation Board User Guide Downloaded from Elcodis.com electronic components distributor... -
Page 23: Figure 6-4. Jtag Interface, Reset, Interrupts And Leds
Appendix B - Schematics Figure 6-4. JTAG Interface, Reset, Interrupts and LEDs AT91EB40 Evaluation Board User Guide Downloaded from Elcodis.com electronic components distributor... -
Page 24: Figure 6-5. I/O Expansion
Appendix B - Schematics Figure 6-5. I/O Expansion AT91EB40 Evaluation Board User Guide Downloaded from Elcodis.com electronic components distributor... -
Page 25: Figure 6-6. Power, Crystal Oscillator And Clock Distribution
Appendix B - Schematics Figure 6-6. Power, Crystal Oscillator and Clock Distribution AT91EB40 Evaluation Board User Guide Downloaded from Elcodis.com electronic components distributor... -
Page 26: Figure 6-7. At91R40807 In Tqfp Package
Appendix B - Schematics Figure 6-7. AT91R40807 in TQFP Package AT91EB40 Evaluation Board User Guide Downloaded from Elcodis.com electronic components distributor... -
Page 27: Figure 6-8. Serial Interface
Appendix B - Schematics Figure 6-8. Serial Interface AT91EB40 Evaluation Board User Guide Downloaded from Elcodis.com electronic components distributor... - Page 28 No licenses to patents or other intellectual prop- erty of Atmel are granted by the Company in connection with the sale of Atmel products, expressly or by implication. Atmel’s products are not authorized for use as critical components in life suppor t devices or systems.
Need help?
Do you have a question about the AT91EB40 and is the answer not in the manual?
Questions and answers