Wiki

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Next revision
Previous revision
resources:eval:ezlinx:isolated-spi [08 May 2012 16:45]
Neil Quinn created
resources:eval:ezlinx:isolated-spi [03 Jan 2021 22:04] (current)
Robin Getz fix links
Line 1: Line 1:
-====== Isolated SPI ======+\\ 
 +[[resources/​eval/​ezlinx|ezLINX™ iCoupler® Isolated Interface Development Environment Homepage]] 
 +\\ 
 +====== ​ezLINX™ ​Isolated SPI Implementation======
  
-Two Isolated SPI ports are implemented using the [[http://​www.analog.com/​adum3401|ADuM3401]] and the [[http://​www.analog.com/​adum3402|ADuM3402]] //​i//​Coupler signal isolators and the [[http://​www.analog.com/​adum5000|ADuM5000]] //​iso//​Power Isolated DC to DC converter. The [[http://​www.analog.com/​adum3401|ADuM3401]] of the isolated SPI1 is connected to SPI0 of the ADSP-BF548. The [[http://​www.analog.com/​adum3402|ADuM3402]] is used for isolating the SPI slave select lines. Figure below shows a circuit diagram of the implementation of Isolated SPI1 using the [[http://​www.analog.com/​adum3401|ADuM3401]],​ [[http://​www.analog.com/​adum3402|ADuM3402]],​ and [[http://​www.analog.com/​adum5000|ADuM5000]] on the //ez//LINX hardware.+Two Isolated SPI ports are implemented using the [[adi>adum3401|ADuM3401]] and the [[adi>adum3402|ADuM3402]] //​i//​Coupler signal isolators and the [[adi>adum5000|ADuM5000]] //​iso//​Power Isolated DC to DC converter. The [[adi>adum3401|ADuM3401]] of the isolated SPI1 is connected to SPI0 of the ADSP-BF548. The [[adi>adum3402|ADuM3402]] is used for isolating the SPI slave select lines. Figure ​below shows a circuit diagram of the implementation of Isolated SPI1 using the [[adi>adum3401|ADuM3401]],​ [[adi>adum3402|ADuM3402]],​ and [[adi>adum5000|ADuM5000]] on the //ez//LINX hardware.
  
-The [[http://​www.analog.com/​adum3401|ADuM3401]] of the isolated SPI2 is connected to SPI2 of the ADSP-BF548. The [[http://www.analog.com/​adum3402|ADuM3402]] is used for isolating the SPI slave select linesFigure 2 below shows a circuit diagram of the implementation of Isolated ​SPI2 using the [[http://​www.analog.com/​adum3401|ADuM3401]],​ [[http://​www.analog.com/​adum3402|ADuM3402]] and [[http://​www.analog.com/​adum5000|ADuM5000]] on the //ez//LINX hardware.+{{ :ezlinx:isolatedspi1.png?​nolink&​900 ​|Figure 1. Isolated ​SPI1 schematic}}
  
-VDD1 of the [[http://www.analog.com/adum3401|ADuM3401]],​ [[http://www.analog.com/adum3402|ADuM3402]] and VDD1 of the [[http://​www.analog.com/​adum5000|ADuM5000]] are powered by 3.3V. The [[http://​www.analog.com/​adum5000|ADuM5000]] will generate an isolated 3.3V and is used to supply power to VDD2 of the [[http://​www.analog.com/​adum3401|ADuM3401]] and [[http://​www.analog.com/​adum3402|ADuM3402]].+To connect Isolated SPI1 as a master, connect jumpers JP5, JP7, JP9, JP11, JP13, JP15, JP21 and JP36 while leaving jumpers JP6, JP8, JP10, JP12, JP14, JP16, JP20 and JP37 open. To connect Isolated SPI1 as a slave, connect jumpers JP6, JP8, JP10, JP12, JP14, JP16, JP20 and JP37 while leaving jumpers JP5, JP7, JP9, JP11, JP13, JP15, JP21 and JP36 open. When connecting SPI1 as a slave, connecting JP20 enables the slave select and serial clock inputs on the [[adi>​adum3402|ADuM3402]]. 
 + 
 +These jumper settings are given in the table below: 
 + 
 +|              ^  JP5  ^  JP6  ^  JP7  ^  JP8  ^  JP9  ^  JP10  ^  JP11  ^  JP12  ^  JP13  ^  JP14  ^  JP15  ^  JP16  ^  JP20  ^  JP21  ^  JP36  ^  JP37  ^ 
 +^  SPI1 Master ​ |  Connect ​ |  Open  |  Connect ​ |  Open  |  Connect ​ |  Open  |  Connect ​ |  Open  |  Connect ​ |  Open  |  Connect ​ |  Open  |  Open  |  Connect |  Connect ​ |  Open  |  
 +^  SPI1 Slave  |  Open  |  Connect ​ |  Open  |  Connect ​ |  Open  |  Connect ​ |  Open  |  Connect ​ |  Open  |  Connect ​ |  Open  |  Connect ​ |  Connect ​ |  Open  |  Open  |  Connect ​ | 
 + 
 +\\ 
 + 
 + 
 +The [[adi>​adum3401|ADuM3401]] of the isolated SPI2 is connected to SPI2 of the ADSP-BF548The [[adi>​adum3402|ADuM3402]] is used for isolating the SPI slave select linesFigure 2 below shows a circuit diagram of the implementation of Isolated SPI2 using the [[adi>adum3401|ADuM3401]],​ [[adi>​adum3402|ADuM3402]] and [[adi>​adum5000|ADuM5000]] on the //ez//LINX hardware. 
 + 
 +{{ :​ezlinx:​isolatedspi2.png?​nolink&​900 |Figure 2. Isolated SPI2 schematic}} 
 + 
 +To connect Isolated SPI2 as a master, connect jumpers JP22, JP24, JP26, JP28, JP30, JP32, JP35 and JP38 while leaving jumpers JP23, JP25, JP27, JP29, JP31, JP33, JP34 and JP39 open. To connect Isolated SPI2 as a slave, connect jumpers JP23, JP25, JP27, JP29, JP31, JP33, JP34 and JP39 while leaving jumpers JP22, JP24, JP26, JP28, JP30, JP32, JP35 and JP38 open. When connecting SPI2 as a slave JP34 should also be connected, enabling the slave select and serial clock inputs on the [[adi>​adum3402|ADuM3402]]. 
 + 
 + 
 +These jumper settings are given in the table below: 
 + 
 +|              ^  JP22  ^  JP23  ^  JP24  ^  JP25  ^  JP26  ^  JP27  ^  JP28  ^  JP29  ^  JP30  ^  JP31  ^  JP32  ^  JP33  ^  JP34  ^  JP35  ^  JP38  ^  JP39  ^ 
 +^  SPI2 Master ​ |  Connect ​ |  Open  |  Connect ​ |  Open  |  Connect ​ |  Open  |  Connect ​ |  Open  |  Connect ​ |  Open  |  Connect ​ |  Open  |  Open  |  Connect |  Connect ​ |  Open  | 
 +^  SPI2 Slave  |  Open  |  Connect ​ |  Open  |  Connect ​ |  Open  |  Connect ​ |  Open  |  Connect ​ |  Open  |  Connect ​ |  Open  |  Connect ​ |  Connect ​ |  Open  |  Open  |  Connect ​ | 
 + 
 +\\ 
 + 
 +VDD1 of the [[adi>​adum3401|ADuM3401]],​ [[adi>adum3402|ADuM3402]] and VDD1 of the [[adi>adum5000|ADuM5000]] are powered by 3.3V. The [[adi>adum5000|ADuM5000]] will generate an isolated 3.3V and is used to supply power to VDD2 of the [[adi>adum3401|ADuM3401]] and [[adi>adum3402|ADuM3402]].
  
 Two seven pin screw terminal connectors, J10 and J25 are used for easy access to the SPISCK (Pin 1), SPIMOSI (Pin 2), SPISEL1/​SPISS (Pin 3), SPIMISO (Pin 4). SPISEL2 (Pin 5), SPISEL3 (Pin 6) and SPI_ISO_GND (Pin 7). Two seven pin screw terminal connectors, J10 and J25 are used for easy access to the SPISCK (Pin 1), SPIMOSI (Pin 2), SPISEL1/​SPISS (Pin 3), SPIMISO (Pin 4). SPISEL2 (Pin 5), SPISEL3 (Pin 6) and SPI_ISO_GND (Pin 7).
  
-To connect Isolated SPI1 as a master, connect jumpers JP5, JP7, JP9, JP11, JP13 and JP15 while leaving jumpers JP6, JP8, JP10, JP12, JP14 and JP16 open. To connect Isolated SPI1 as a slave, connect jumpers JP6, JP8, JP10, JP12, JP14 and JP16 while leaving jumpers JP5, JP11, JP13 and JP15 open. 
  
-To connect Isolated SPI2 as a master, connect jumpers JP22, JP24, JP26, JP28, JP30 and JP32 while leaving jumpers JP23, JP25, JP27, JP29, JP31 and JP33 open. To connect Isolated SPI1 as a slave, connect jumpers JP23, JP25, JP27, JP29, JP31 and JP33 while leaving jumpers JP22, JP24, JP26, JP28, JP30 and JP32 open. 
resources/eval/ezlinx/isolated-spi.1336488340.txt.gz · Last modified: 08 May 2012 16:45 by Neil Quinn