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Nuvoton: M480/M451 CAN API support mask feature #15020

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merged 2 commits into from
Aug 26, 2021
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Nuvoton: M480/M451 CAN API support mask feature #15020

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a33dc4e
M480 CAN API support mask feature
cyliangtw Aug 24, 2021
f28181c
M451 CAN API support mask feature
cyliangtw Aug 24, 2021
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12 changes: 11 additions & 1 deletion targets/TARGET_NUVOTON/TARGET_M451/can_api.c
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Original file line number Diff line number Diff line change
Expand Up @@ -285,7 +285,17 @@ int can_mode(can_t *obj, CanMode mode)

int can_filter(can_t *obj, uint32_t id, uint32_t mask, CANFormat format, int32_t handle)
{
return CAN_SetRxMsg((CAN_T *)NU_MODBASE(obj->can), handle , (uint32_t)format, id);
uint32_t numask = mask;
if( numask == 0x0000 )
{
return CAN_SetRxMsg((CAN_T *)NU_MODBASE(obj->can), handle, (uint32_t)format, id);
}
if( format == CANStandard )
{
numask = (mask << 18);
}
numask = (numask | CAN_IF_MASK2_MDIR_Msk | CAN_IF_MASK2_MXTD_Msk);
return CAN_SetRxMsgAndMsk((CAN_T *)NU_MODBASE(obj->can), handle, (uint32_t)format, id, numask);
}


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12 changes: 11 additions & 1 deletion targets/TARGET_NUVOTON/TARGET_M480/can_api.c
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Original file line number Diff line number Diff line change
Expand Up @@ -332,7 +332,17 @@ int can_mode(can_t *obj, CanMode mode)

int can_filter(can_t *obj, uint32_t id, uint32_t mask, CANFormat format, int32_t handle)
{
return CAN_SetRxMsg((CAN_T *)NU_MODBASE(obj->can), handle, (uint32_t)format, id);
uint32_t numask = mask;
if( numask == 0x0000 )
{
return CAN_SetRxMsg((CAN_T *)NU_MODBASE(obj->can), handle, (uint32_t)format, id);
}
if( format == CANStandard )
{
numask = (mask << 18);
}
numask = (numask | CAN_IF_MASK2_MDIR_Msk | CAN_IF_MASK2_MXTD_Msk);
return CAN_SetRxMsgAndMsk((CAN_T *)NU_MODBASE(obj->can), handle, (uint32_t)format, id, numask);
}


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