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modifications
Modifications
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Ligne 198 :
Ligne 198 : − + − + − + − As a consequence they are not available for use on the GPIO breakout.+ + + + − + − + − + − + − + − + − | align="left" | SPI(0)+ − |- style="font-size: 90%" − | align="left" | gp5 − − | align="left" | active low − |- style="font-size: 90%" − | align="left" | gp6 − | align="left" | sck − | align="left" | SPI(0) clock − |- style="font-size: 90%" − | align="left" | gp7 − | align="left" | mosi − | align="left" | SPI(0)
→I2C connectors
I2C devices/sensors can be daisy chained on the same bus since each device having an unique I2C address (7 bits address, value from 1 to 127).
I2C devices/sensors can be daisy chained on the same bus since each device having an unique I2C address (7 bits address, value from 1 to 127).
Such way, the microcontroler can get in touch with the sensor over the I2C bus to send configuration data and query measurement results.
Such way, the microcontroler can get in touch with a given sensor over the I2C bus to send configuration data and query measurement results.
{{asm-begin}}
{{asm-begin}}
{{asm-row|img=ENG-CANSAT-V2-SPI.jpg}}
{{asm-row|img=ENG-CANSAT-V2-I2C.jpg}}
{{asm-text}} Some of the GPIOs are attached to radio module.
{{asm-text}} Two GPIOs are attached to the board I2C module.
The I2C is accessible via any (or all) of:
* The breakout lines (labelled sda and scl).
* The '''Grove I2C''' connector.
* The '''Qwiic/StemmaQt''' connector
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
| align="center" | '''GPIO'''
| align="center" | '''GPIO'''
| align="center" | '''Radio Signal'''
| align="center" | '''I2C Signal'''
| align="center" | '''Description'''
| align="center" | '''Description'''
|- style="font-size: 90%"
|- style="font-size: 90%"
| align="left" | gp3
| align="left" | gp8
| align="left" | rst
| align="left" | I2C(0).sda
| align="left" | active high
| align="left" | Data Line
|- style="font-size: 90%"
|- style="font-size: 90%"
| align="left" | gp4
| align="left" | gp9
| align="left" | miso
| align="left" | I2C(0).scl
| align="left" | Clock line
| align="left" | nss
|}
|}