参数资料
| 型号： | AT88CK109STK3 |
| 厂商： | Atmel |
| 文件页数： | 18/38页 |
| 文件大小： | 0K |
| 描述： | KIT JAVAN BASE/SCKT BD/IC SAMPLE |
| 标准包装： | 1 |
| 系列： | CryptoAuthentication™ |
| 主要目的： | 接口，防拆与安全性 |
| 嵌入式： | 是，MCU，8 位 |
| 已用 IC / 零件： | ATSHA204 |
| 主要属性： | SWI（单线接口） |
| 次要属性： | USB 接口 |
| 已供物品： | 2 板，电缆，样品 |
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AT88SCK109STK3
3.12
3.13
Interfacing a USART with CryptoAuthentication
A microcontroller’s USART requires a minimum of two signals (RXD and TXD) to communicate.
The AT88SA100, AT88SA102, and AT88SA10HS devices have a 1-wire communication interface.
The make the USART compatible with a 1-wire CryptoAuthentication device, the USART’s pins (TX
and Rx) are tied together.
Figure 19. USART TXD and RXD pins configured for 1-wire Interfacing
On the AT88CK109BK3, Px2 and Px3 are tied together with a zero ohm resistor (R11). When
mounted to the AT88Microbase, pins Px2 and Px3 align with pins (PB3/PD2) and (PB7/PD3). The
USART pins, PD2 (RXD) and PD3 (TXD), are effectively tied together with R11allowing the USART
to be compatible with the CryptoAuthentication 1-wire interface.
In-System Programming
3.13.1 Programming with USB bootloader: DFU (Device Firmware Upgrade)
AT90USB1287 AVR comes with a default factory pre-programmed USB bootloader located in the
on-chip boot section of the AT90USB1287. This is the easiest and fastest way to reprogram the
device directly over the USB interface. The “Flip” PC side application, available for free on Atmel
website, offers a flexible and user friendly interface for reprogramming the application over the USB
bus.
The “HWB” push button is used to place the AVR into DFU mode after reset (Refer to
AT90USB1287 datasheet section “boot loader support”).
The following steps enable the DFU mode:
1. Press and hold “HWB” button
2. Press the “RESET” button
3. Release the “RESETT” button.
4. Release the “HWB” button.
For more information about the USB bootloader and FLIP software, please refer to the ‘USB
bootloader datasheet’ document and ‘FLIP User Manual’.
Note: HWBE fuse must be enabled to support DFU.
3-16
8699A—CRYPTO—10/09
AT88CK109STK3 User Guide
相关PDF资料 |
PDF描述 |
|---|---|
| AT88CK109STK8 | KIT STARTER CRYPTO W/2 SOIC SKTS |
| AT88CK440RED | KIT ADAPTER FOR CRYPTO 10PIN |
| AT88CK454BLACK | KIT DEMO USB CRYPTO FOR ATSHA204 |
| AT88SC25616CSDT | KIT DEV TOOL CRYPTOMEMORY |
| AT89DVK-04 | BOARD DEMO MP3 PLAYER |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AT88CK109STK8 | 功能描述:安全/ 验证开发工具 CryptoAuth Strtr Kit w/2 SOIC sockets RoHS:否 制造商:Digi International 产品:Development Kits 工具用于评估:XEB-AW140 接口类型:SPI, USB 工作电源电压:3.1 V to 3.6 V |
| AT88CK109STK8-PROMO | 制造商:Atmel Corporation 功能描述:CRYPTOAUTHENTICATION EE, START |
| AT88CK109-TSU-XPRO | 制造商:Atmel Corporation 功能描述:BOARD KIT CRYPTO W/2 SOIC SKTS |
| AT88CK201BK | 功能描述:子卡和OEM板 Modular CryptoRF startr kit w/o micro RoHS:否 制造商:BeagleBoard by CircuitCo 产品:BeagleBone LCD4 Boards 用于:BeagleBone - BB-Bone - Open Source Development Kit |
| AT88CK201STK | 功能描述:安全/ 验证开发工具 Modular Starter Kit for CryptoRF w/micro RoHS:否 制造商:Digi International 产品:Development Kits 工具用于评估:XEB-AW140 接口类型:SPI, USB 工作电源电压:3.1 V to 3.6 V |
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