FREESCALE FLEXCAN DRIVER DOWNLOAD
Prescaler value is 7 bit, 1 to Two different sources show two different results. Each time segment consists of a number of Time Quanta tq. Therefore the same bit timing register calculation can be used. The CAN bit time may be programed in the range of 4 to 81 time quanta. A late sampling for example allows a maximum bus length:
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But some chips exist to substitute it. The table will be calculated for all CANopen defined bit rates. The PIC32 family’s bit rate prescaler is only programmable between 1 to It is used to synchronize the various bus nodes.
CAN: Add Flexcan CAN controller driver 
Each time segment consists of a number of Time Quanta tq. Five bit timing registers are used to configure the bit rate for the arbitration phase S-slow phase and data phase F-fast phase.
This can tlexcan configured with the Zynq clock module. Therefore the same bit timing register calculation can be used.
All Boards FlexCAN
It looks like the combination of the two registers used in the dsPIC CNF2 the propagation segment, phase segmant 1, SAM bit which controls the number of samples taken at the sample point. A late sampling for example allows a maximum bus length: BCR2 contains the bit pre-scaler in the lowest 8 bits.
The bit timing pre-scaler is 10 bit wide and can divide by 1 to According to the manual the time quanta is derived by dividing the clock frequency by the factor of two after the bit rate prescaler. Where ctype is the controller type. The SJW ist not yet considered by the tool.
The total number of Time Quanta has to be from 8 to At the time this tool was first developed, this seems to be the best value. The eCAN module features several enhancements such as increased number of mailboxes with individual acceptance masks, time stamping, etc.
CAN as FLEXCAN
A table can be requested by passing parameters on the http request line like http: To simplify programming the fast bit rate, the programm allows only the fast flrxcan rate to be multiple of the arbitration bit rate. However, eCAN follows the same register bit-layout structure and bit functionality as that of x CAN for registers that exist in both devices i.
It is used to compensate for signal delays across the network. Yellow background rows are settings with an bittime consisting of 16 time quanta tq. An additional register at address 0xc is used to set the transmitter delay.
There is currently an issue for the high speed controllers in generating low CAN bit rates. CNF1 controls the bit rate prescaler and the sync jump with.