參數(shù)資料
型號(hào): 30770
廠商: Dresden Elektronik
文件頁(yè)數(shù): 29/74頁(yè)
文件大?。?/td> 2001K
描述: SET DERFNODE FOR AVR HOUSING
標(biāo)準(zhǔn)包裝: 1
User Manual
Version 1.1
2011-07-15
 
  deRFnode and deRFgateway
 
 
 
 
dresden elektronik
ingenieurtechnik gmbh
Enno-Heidebroek-Str. 12
12 7 Dr
n
rm  n
Tel.: +49 351  31 85 00
Fax: +49 351  3 18 50 10
wireless@dresden-elektronik.de
www. r
n- l k r nik.
Page 29 of 56
 
8.3.1. Native USB only for ARM based radio modules
The native USB interface is optimized for using the deRFgateway platforms together with
deRFarm7 radio modules, which contain a SAM7X512 microcontroller with an implemented
native USB interface. All necessary external parts for USB communication are placed on the
deRFgateway.
 
USBDM:
Pin 4
USBDP:
Pin 32
 
Figure 18: Native USB interface
 
8.3.2. USB serial for AVR based radio modules
The serial USB interface is a variant of the deRFnode platform. The communication is real-
ized by the transceiver circuit FT245RL and the level shifter circuits TXB0108.
 
Following USB data lines are used:
 
USB Bit 0:     Pin 16
USB Bit 1:     Pin 41
USB Bit 2:     Pin 12
USB Bit 3:     Pin 6
USB Bit 4:     Pin 37
USB Bit 5:     Pin 19
USB Bit 6:     Pin 39
USB Bit 7:     Pin 18
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