Lines Matching +full:bitrate +full:- +full:data

13 Controller Area Network is a two-wire serial bus specified by the
14 Bosch CAN Specification, Bosch CAN with Flexible Data-Rate specification and the
15 ISO 11898-1:2003 standard.
26 The bit-timing as defined in ISO 11898-1:2003 looks as following:
41 The bit-rate is calculated from the time of a time quantum and the values
45 The bit-rate is the inverse of the length of a single bit.
56 The timing parameters (SJW, bitrate and sampling point, or bitrate, Prop_Seg,
57 Phase_Seg1and Phase_Seg2) are initially set from the device-tree and can be
58 changed at run-time from the timing-API.
60 CAN uses so-called identifiers to identify the frame instead of addresses to
62 This identifier can either have 11-bit width (Standard or Basic Frame) or
63 29-bit in case of an Extended Frame. The Zephyr CAN API supports both Standard
84 it partially overrides the current frame with an error-frame.
85 Error-frames can either be error passive or error active, depending on the state
93 * Error-active
94 * Error-passive
95 * Bus-off
97 After initialization, the node is in the error-active state. In this state, the
99 Every node has a receive- and transmit-error counter.
100 If either the receive- or the transmit-error counter exceeds 127,
101 the node changes to error-passive state.
102 In this state, the node is not allowed to send error-active frames anymore.
103 If the transmit-error counter increases further to 255, the node changes to the
104 bus-off state. In this state, the node is not allowed to send any dominant bits
105 to the bus. Nodes in the bus-off state may recover after receiving 128
121 The following code snippets show how to send data.
125 bytes of data. When passing NULL as the callback, as shown in this example,
130 .. code-block:: C
136           .data = {1,2,3,4,5,6,7,8}
148 two bytes of data. The provided callback is called when the message is sent, or
153 .. code-block:: C
172           frame.data[0] = 1;
173           frame.data[1] = 2;
185 :c:func:`can_add_rx_filter`. The user data argument is passed when the filter is
188 .. code-block:: C
203 .. code-block:: C
226 .. code-block:: C
251 .. code-block:: C
255 Setting the bitrate
258 The bitrate and sampling point is initially set at runtime. To change it from
260 function can calculate timing from a bitrate and sampling point in permille.
261 The following example sets the bitrate to 250k baud with the sampling point at
264 .. code-block:: C
272     LOG_INF("Sample-Point error: %d", ret);
295 A similar API exists for calculating and setting the timing for the data phase for CAN FD capable
303 SocketCAN brings the convenience of the well-known BSD Socket API to
305 implementation, where many other high-level CAN projects build on top.
312 We have two ready-to-build samples demonstrating use of the Zephyr CAN API:
313 :zephyr:code-sample:`Zephyr CAN counter sample <can-counter>` and
314 :zephyr:code-sample:`SocketCAN sample <socket-can>`.