Difference between revisions of "IoTGateway/BSP/Android/Gettingstarted/How to use CAN Bus"
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(10 intermediate revisions by the same user not shown) | |||
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+ | i.MX6 uses the internal FlexCAN(Flexible Controller Area Network) module implementing the CAN protocol according to the CAN 2.0B. | ||
+ | |||
=== Pin Define === | === Pin Define === | ||
Line 11: | Line 13: | ||
| Signal | | Signal | ||
|- | |- | ||
− | | 1 | + | | 1 |
| - | | - | ||
− | | 2 | + | | 2 |
| - | | - | ||
|- | |- | ||
− | | 3 | + | | 3 |
− | | CAN0_D- | + | | CAN0_D- |
− | | 4 | + | | 4 |
| - | | - | ||
|- | |- | ||
− | | 5 | + | | 5 |
− | | CAN0_D+ | + | | CAN0_D+ |
− | | 6 | + | | 6 |
| - | | - | ||
|- | |- | ||
− | | 7 | + | | 7 |
| - | | - | ||
− | | 8 | + | | 8 |
| - | | - | ||
|- | |- | ||
− | | 9 | + | | 9 |
| GND | | GND | ||
− | | 10 | + | | 10 |
| - | | - | ||
|} | |} | ||
Line 75: | Line 77: | ||
− | === Configuration === | + | === Configuration/Test === |
− | + | ==== Configuration ==== | |
+ | |||
+ | Connect CAN0 to CAN1 | ||
<tt>CAN0_D+ </tt>connect to <tt>CAN1_D+</tt> | <tt>CAN0_D+ </tt>connect to <tt>CAN1_D+</tt> | ||
<tt>CAN0_D- </tt>connect to <tt>CAN1_D-</tt> | <tt>CAN0_D- </tt>connect to <tt>CAN1_D-</tt> | ||
− | <pre># | + | <pre># ip link set can0 up type can bitrate 125000 |
+ | # ip link set can1 up type can bitrate 125000</pre> | ||
+ | |||
+ | |||
+ | |||
+ | ==== Test ==== | ||
− | #cansend | + | *Test 1 |
+ | <pre># candump can1 & | ||
+ | # cansend can0 12345678#123412341234 | ||
+ | </pre> | ||
− | <pre> | + | The following shows the result |
− | + | <pre>can1 12345678 [6] 12 34 12 34 12 34 | |
</pre> | </pre> | ||
− | + | *Test 2 | |
+ | <pre># cansend can0 133#ababdede | ||
+ | </pre> | ||
− | + | The following shows the result | |
+ | <pre>can1 133 [4] AB AB DE DE | ||
+ | </pre> |
Latest revision as of 09:18, 3 February 2017
i.MX6 uses the internal FlexCAN(Flexible Controller Area Network) module implementing the CAN protocol according to the CAN 2.0B.
Pin Define
ROM-3420
Pin | Signal | Pin | Signal |
1 | - | 2 | - |
3 | CAN0_D- | 4 | - |
5 | CAN0_D+ | 6 | - |
7 | - | 8 | - |
9 | GND | 10 | - |
ROM-7421
Pin | Signal | Pin | Signal |
1 | - | 2 | CAN0_D- |
3 | |
4 | - |
5 | GND |
6 | GND |
7 | CAN0_D+ | 8 | - |
9 | 10 | - |
Configuration/Test
Configuration
Connect CAN0 to CAN1
CAN0_D+ connect to CAN1_D+
CAN0_D- connect to CAN1_D-
# ip link set can0 up type can bitrate 125000 # ip link set can1 up type can bitrate 125000
Test
- Test 1
# candump can1 & # cansend can0 12345678#123412341234
The following shows the result
can1 12345678 [6] 12 34 12 34 12 34
- Test 2
# cansend can0 133#ababdede
The following shows the result
can1 133 [4] AB AB DE DE