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feat: automatic CAN filter configuration #20

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feat: automatic CAN filter configuration #20

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6a99af9
Add ID List CAN ID Filter in rtcan_start()
rureverek May 3, 2023
f46f187
Fix comments
rureverek May 3, 2023
b555b35
Add constants, for each hash entry look for chained nodes
rureverek May 3, 2023
9e4126c
Alternate filter assignment between both FIFOs
rureverek May 4, 2023
3008cd3
Add limit (NUM_FILTERS * NUM_IDS_PER_FILTER) to the can id finder loop
rureverek May 4, 2023
ae80c5e
Move the filter configuration to rtcan_subscribe()
rureverek May 10, 2023
aaf21fd
Fix can_ids
rureverek May 10, 2023
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Add limit (NUM_FILTERS * NUM_IDS_PER_FILTER) to the can id finder loop
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@rureverek
rureverek committed May 4, 2023
commit 3008cd31ab673903dba90f58a28c2af2ee8e99c3
10 changes: 9 additions & 1 deletion src/rtcan.c
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Original file line number Diff line number Diff line change
Expand Up @@ -205,13 +205,21 @@ rtcan_status_t rtcan_start(rtcan_handle_t* rtcan_h)
/* Subscriber found! */
can_id_list[number_ids] = node->can_id;
number_ids++;
if(number_ids > (NUM_FILTERS * NUM_IDS_PER_FILTER))
{
break;
}

while(node->chained_node_ptr != NULL)
{
/* Chained node found! */
node = node->chained_node_ptr;
can_id_list[number_ids] = node->can_id;
number_ids++;
if(number_ids > (NUM_FILTERS * NUM_IDS_PER_FILTER))
{
break;
}
}

}
Expand All @@ -237,7 +245,7 @@ rtcan_status_t rtcan_start(rtcan_handle_t* rtcan_h)
filter.FilterMaskIdHigh = can_id_list[NUM_IDS_PER_FILTER * i + 2] << 5U;
filter.FilterMaskIdLow = can_id_list[NUM_IDS_PER_FILTER * i + 3] << 5U;
filter.FilterBank = i;

/* Alternate between FIFO0 and FIFO1 to share the load evenly */
if(i % 2)
{
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