Differences
This shows you the differences between two versions of the page.
| Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
| resources:eval:ezlinx:isolated-spi [16 May 2012 18:53] – Approved Hein Marais | resources:eval:ezlinx:isolated-spi [03 Jan 2021 22:04] (current) – fix links Robin Getz | ||
|---|---|---|---|
| Line 1: | Line 1: | ||
| \\ | \\ | ||
| - | [[resources/ | + | [[resources/ |
| \\ | \\ | ||
| ====== ezLINX™ Isolated SPI Implementation====== | ====== ezLINX™ Isolated SPI Implementation====== | ||
| - | Two Isolated SPI ports are implemented using the [[http:// | + | Two Isolated SPI ports are implemented using the [[adi>adum3401|ADuM3401]] and the [[adi>adum3402|ADuM3402]] // |
| {{ : | {{ : | ||
| - | 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, JP7, JP9, JP11, JP13 and JP15 open. When connecting SPI1 as a slave JP20 should also be connected, enabling | + | 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, |
| These jumper settings are given in the table below: | These jumper settings are given in the table below: | ||
| - | | ^ JP5 ^ JP6 ^ JP7 ^ JP8 ^ JP9 ^ JP10 ^ JP11 ^ JP12 ^ JP13 ^ JP14 ^ JP15 ^ JP16 ^ JP20 ^ JP21 ^ | + | | ^ JP5 ^ JP6 ^ JP7 ^ JP8 ^ JP9 ^ JP10 ^ JP11 ^ JP12 ^ JP13 ^ JP14 ^ JP15 ^ JP16 ^ JP20 ^ JP21 |
| - | ^ SPI1 Master | + | ^ SPI1 Master |
| - | ^ SPI1 Slave | Open | Connect | + | ^ SPI1 Slave | Open | Connect |
| \\ | \\ | ||
| - | The [[http:// | + | The [[adi>adum3401|ADuM3401]] of the isolated SPI2 is connected to SPI2 of the ADSP-BF548. The [[adi>adum3402|ADuM3402]] is used for isolating the SPI slave select lines. Figure 2 below shows a circuit diagram of the implementation of Isolated SPI2 using the [[adi>adum3401|ADuM3401]], |
| {{ : | {{ : | ||
| - | 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 SPI2 as a slave, connect jumpers JP23, JP25, JP27, JP29, JP31 and JP33 while leaving jumpers JP22, JP24, JP26, JP28, JP30 and JP32 open. When connecting SPI2 as a slave JP34 should also be connected, enabling the slave select and serial clock inputs on the [[http:// | + | 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: | These jumper settings are given in the table below: | ||
| - | | ^ JP22 ^ JP23 ^ JP24 ^ JP25 ^ JP26 ^ JP27 ^ JP28 ^ JP29 ^ JP30 ^ JP31 ^ JP32 ^ JP33 ^ JP34 ^ JP35 ^ | + | | ^ JP22 ^ JP23 ^ JP24 ^ JP25 ^ JP26 ^ JP27 ^ JP28 ^ JP29 ^ JP30 ^ JP31 ^ JP32 ^ JP33 ^ JP34 ^ JP35 |
| - | ^ SPI2 Master | + | ^ SPI2 Master |
| - | ^ SPI2 Slave | Open | Connect | + | ^ SPI2 Slave | Open | Connect |
| \\ | \\ | ||
| - | VDD1 of the [[http:// | + | VDD1 of the [[adi>adum3401|ADuM3401]], |
| Two seven pin screw terminal connectors, J10 and J25 are used for easy access to the SPISCK (Pin 1), SPIMOSI (Pin 2), SPISEL1/ | Two seven pin screw terminal connectors, J10 and J25 are used for easy access to the SPISCK (Pin 1), SPIMOSI (Pin 2), SPISEL1/ | ||
resources/eval/ezlinx/isolated-spi.txt · Last modified: 03 Jan 2021 22:04 by Robin Getz