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参数资料
| 型号： | ATSTK500 |
| 厂商： | Atmel |
| 文件页数： | 27/61页 |
| 文件大小： | 0K |
| 描述： | PROGRAMMER AVR STARTER KIT |
| 产品培训模块： | MCU Product Line Introduction |
| 标准包装： | 1 |
| 系列： | AVR® |
| 类型： | MCU |
| 适用于相关产品： | Atmel AVR 设备 |
| 所含物品： | 板，线缆，CD 和文档 |
| 产品目录页面： | 615 (CN2011-ZH PDF) |
| 配用： | ATADAPCAN01-ND - EXTENSION CAN ADD-ON TO STK500/1 |
| 相关产品： | ATMEGA64C1-15MZTR-ND - MCU AVR 64KB FLASH CAN 32-VQFN ATMEGA64C1-15AZTR-ND - MCU AVR 64KB FLASH CAN 32TQFP ATMEGA64M1-15MZTR-ND - MCU AVR 64KB FLASH 3PSC 32-VQFN ATMEGA64M1-15AZTR-ND - MCU AVR 64KB FLASH 3PSC 32TQFP ATMEGA32HVB-8X3-ND - MCU AVR 32KB FLASH 8MHZ 44TSSOP ATMEGA16U4-AU-ND - MCU AVR 16K FLASH USB 44TQFP ATMEGA16HVB-8X3-ND - MCU AVR 16KB FLASH 44TSSOP ATMEGA169PV-8MCH-ND - MCU AVR 16KB FLASH 8MHZ 64-VQFN ATMEGA169P-16MCH-ND - MCU AVR 16KB FLASH 16MHZ 64-VQFN ATMEGA16U2-AU-ND - MCU AVR 16K FLASH USB 32TQFP 更多... |
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Hardware Description
The internal VTARGET has a short circuit protection. If VTARGET is set to be higher
than 0.3V and the master microcontroller measures it to be below 0.3V for a duration of
80 ms, the master microcontroller will shut off the VTARGET and the Internal AREF.
When this happens, the status LED will blink quickly.
If an external VTARGET is used and the external VTARGET is turned off, this will also
be detected by the STK500 as a (false) short circuit. The latter case can be avoided by
lowering the internal VTARGET below 0.3V.
3.8.2
Analog Reference
Voltage, AREF
The analog reference voltage (AREF) can supply the reference voltage to the on-chip
A/D Converter on the AVR. If the AREF jumper is mounted, the on-board analog refer-
ence voltage is connected to the AVR’s AREF. The on-board analog reference voltage
can be adjusted from AVR Studio to 0 - 6.0V, but not above VTARGET.
When the AREF jumper is disconnected, AREF voltage must be supplied from an exter-
nal source at the AREF pin on the PORTE/AUX header (Figure 3-6). Figure 3-23
explains AREF jumper options.
When using an external source for AREF, the user must control VTARGET at a higher
voltage level than AREF. This can be controlled easily by reading the VTG value from
AVR Studio before setting AREF.
Figure 3-23. AREF Jumper Options
Jumper Mounted
VTARGET
AREF
RESET
On-board AREF voltage connected (default)
Jumper not Mounted
VTARGET
AREF
RESET
On-board AREF voltage disconnected
The STK500 master microcontroller controls the analog reference voltage using the
internal PWM. The AVR’s AREF signal is also accessible on the PORTE header; this
pin can also be used for external AREF signal. Figure 3-24 shows the internal connec-
tion of the AREF signal.
AVR STK500 User Guide
3-17
1925C–AVR–3/03
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ATSTK500/IAR-C | 制造商:Atmel 功能描述:STK500 DEV KIT WITH IAR C |
| ATSTK501 | 功能描述:插座和适配器 Expansion module for STK500 Starter Kit RoHS:否 制造商:Silicon Labs 产品:Adapter 用于:EM35x |
| ATSTK502 | 功能描述:插座和适配器 Expansion module for STK500 Starter Kit RoHS:否 制造商:Silicon Labs 产品:Adapter 用于:EM35x |
| ATSTK503 | 功能描述:插座和适配器 Expansion module for STK500 Starter Kit RoHS:否 制造商:Silicon Labs 产品:Adapter 用于:EM35x |
| ATSTK504 | 功能描述:插座和适配器 Expansion module for STK500 Starter Kit RoHS:否 制造商:Silicon Labs 产品:Adapter 用于:EM35x |
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