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Can I say that master can only initiate communication in SPI vs. in I2C slave can also initiate the communication?
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Can I say that master can only initiate communication in SPI vs. in I2C slave can also initiate the communication?
Do I need SS for SPI single-slave communication?STM32F2xx: Data from SPI Slave to MasterCommunication between micro controllers - I2C, SPI, UART?I2C and SPI on the same busI2C Master communication with a Ten bit slaveSPI bus – how to route two Slave Select lines to the same slaveSPI clock source - master or slaveOne master to 32 slave pic microcontroller communication, bitbangCan I use an ATtiny84 as SPI slave and i2c master in the same applicationI2C Single Master Multiple Slave
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It is possible for a slave to initiate communication in SPI? I thought due to the chip select i.e. NSS feature only master can communicate the communication. However, in I2C, the slave can also initiate the communication by changing the RW flag in the i2c communication. Is it correct?
i2c spi
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add a comment |
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It is possible for a slave to initiate communication in SPI? I thought due to the chip select i.e. NSS feature only master can communicate the communication. However, in I2C, the slave can also initiate the communication by changing the RW flag in the i2c communication. Is it correct?
i2c spi
asked 1 hour ago
Prawn HongsPrawn Hongs
111
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Prawn Hongs is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
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add a comment |
$begingroup$
It is possible for a slave to initiate communication in SPI? I thought due to the chip select i.e. NSS feature only master can communicate the communication. However, in I2C, the slave can also initiate the communication by changing the RW flag in the i2c communication. Is it correct?
i2c spi
asked 1 hour ago
Prawn HongsPrawn Hongs
111
New contributor
Prawn Hongs is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
It is possible for a slave to initiate communication in SPI? I thought due to the chip select i.e. NSS feature only master can communicate the communication. However, in I2C, the slave can also initiate the communication by changing the RW flag in the i2c communication. Is it correct?
i2c spi
i2c spi
asked 1 hour ago
Prawn HongsPrawn Hongs
111
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Prawn Hongs is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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asked 1 hour ago
Prawn HongsPrawn Hongs
111
New contributor
Prawn Hongs is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 1 hour ago
Prawn HongsPrawn Hongs
111
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Prawn Hongs is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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asked 1 hour ago
Prawn HongsPrawn Hongs
111
asked 1 hour ago
Prawn HongsPrawn Hongs
111
111
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Prawn Hongs is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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2 Answers
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With both only master can initiate the communication. I²C can however have multiple masters and the nodes can change the roles, so it is a bit more flexible. But saying that slave could initiate communication is still not correct.
answered 59 mins ago
TemeVTemeV
38516
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No, in I2C only the master can start communicating on the bus, and all slaves must follow the master. A slave can't initiate communication and specifically the slave can't change the RW flag in any way.
answered 1 hour ago
JustmeJustme
2,8351413
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2 Answers
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2 Answers
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$begingroup$
With both only master can initiate the communication. I²C can however have multiple masters and the nodes can change the roles, so it is a bit more flexible. But saying that slave could initiate communication is still not correct.
answered 59 mins ago
TemeVTemeV
38516
$endgroup$
add a comment |
$begingroup$
With both only master can initiate the communication. I²C can however have multiple masters and the nodes can change the roles, so it is a bit more flexible. But saying that slave could initiate communication is still not correct.
answered 59 mins ago
TemeVTemeV
38516
$endgroup$
add a comment |
$begingroup$
With both only master can initiate the communication. I²C can however have multiple masters and the nodes can change the roles, so it is a bit more flexible. But saying that slave could initiate communication is still not correct.
answered 59 mins ago
TemeVTemeV
38516
$endgroup$
With both only master can initiate the communication. I²C can however have multiple masters and the nodes can change the roles, so it is a bit more flexible. But saying that slave could initiate communication is still not correct.
answered 59 mins ago
TemeVTemeV
38516
answered 59 mins ago
TemeVTemeV
38516
answered 59 mins ago
TemeVTemeV
38516
answered 59 mins ago
TemeVTemeV
38516
38516
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$begingroup$
No, in I2C only the master can start communicating on the bus, and all slaves must follow the master. A slave can't initiate communication and specifically the slave can't change the RW flag in any way.
answered 1 hour ago
JustmeJustme
2,8351413
$endgroup$
add a comment |
$begingroup$
No, in I2C only the master can start communicating on the bus, and all slaves must follow the master. A slave can't initiate communication and specifically the slave can't change the RW flag in any way.
answered 1 hour ago
JustmeJustme
2,8351413
$endgroup$
add a comment |
$begingroup$
No, in I2C only the master can start communicating on the bus, and all slaves must follow the master. A slave can't initiate communication and specifically the slave can't change the RW flag in any way.
answered 1 hour ago
JustmeJustme
2,8351413
$endgroup$
No, in I2C only the master can start communicating on the bus, and all slaves must follow the master. A slave can't initiate communication and specifically the slave can't change the RW flag in any way.
answered 1 hour ago
JustmeJustme
2,8351413
answered 1 hour ago
JustmeJustme
2,8351413
answered 1 hour ago
JustmeJustme
2,8351413
answered 1 hour ago
JustmeJustme
2,8351413
2,8351413
add a comment |
add a comment |
Prawn Hongs is a new contributor. Be nice, and check out our Code of Conduct.
Prawn Hongs is a new contributor. Be nice, and check out our Code of Conduct.
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