pierremolinaro
commented
3 years ago Hello,
There is no additionnal setting for sending at 500 kbit/s.
Do you have a logic analyzer, for checking the frame is not sent ?
Can you post your code, to see how you send message ?
What is the value of message.idx on sending ? Following figure 2 and §13 in the doc, the idx field value should be 0 or 255. It is ilmportant because if you reply to a received message, this field contains the index of the acceptance filter.
Pierre Molinaro
Le 1 avr. 2021 à 19:39, Pedro Dionisio Pereira Junior @.***> a écrit :
Hi. I'm using NRF52840 and library ACAN2717 version 1.1.10 and I'm facing some problem when trying to transmit frame data. When running on loopback mode is ok, I can send and received frame data, but when running on Normal20B I can receive can data but when I transmit I get no error, but the data is not sent.
Se my code below:
ACAN2517Settings settings (ACAN2517Settings::OSC_20MHz, 500 * 1000) ; settings.mRequestedMode = ACAN2517Settings::Normal20B;//InternalLoopBack;//
//----------------------------------- Append filters ACAN2517Filters filters ; filters.appendFrameFilter (kStandard, PID_VIN, receiveVinData); filters.appendFrameFilter (kStandard, PID_KC_ODOMETER, receiveOdometerData); filters.appendFrameFilter (kStandard, PID_KC_SPEED, receiveSpeedData); filters.appendFrameFilter (kStandard, 0x777, receiveGeneric); filters.appendFrameFilter (kStandard, 0x778, receiveGeneric); filters.appendFrameFilter (kStandard, 0x779, receiveGeneric);
//----------------------------------- Filters ok ? if (filters.filterStatus () != ACAN2517Filters::kFiltersOk) { debug.println("Error filter: %d : %d ", filters.filterErrorIndex(), filters.filterStatus()); } //----------------------------------- Enter configuration const uint32_t errorCode = can.begin (settings, [] { can.isr_core () ; }, filters) ; //----------------------------------- Config ok ? if (errorCode == 0) { debug.println("Bit Rate prescaler: %d", settings.mBitRatePrescaler); debug.println("Phase segment 1: %d", settings.mPhaseSegment1); debug.println("Phase segment 2: %d", settings.mPhaseSegment2); debug.println("SJW: %d", settings.mSJW); debug.println("Actual bit rate: %d bit/s", settings.actualBitRate());
debug.println("Exact bit rate ? %s", settings.exactBitRate() ? "yes" : "no"); debug.println("Sample point: %d%", settings.samplePointFromBitStart()); debug.println("currentOperationMode: %d", can.currentOperationMode());} else { debug.println("Configuration error %x", errorCode); } And now the log information: Configure ACAN2517FD Bit Rate prescaler: 1 Phase segment 1: 31 Phase segment 2: 8 SJW: 8 Actual bit rate: 500000 bit/s Exact bit rate ? yes Sample point: 80 currentOperationMode: 6 Configure ACAN2517FD done
At send operation I get: Sent OK, with no error
Do you know if some addition settings is required to work with CAN20B at 500kbps?
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pedrodpj
Hi. I'm using NRF52840 and library ACAN2717 version 1.1.10 and I'm facing some problem when trying to transmit frame data. When running on loopback mode is ok, I can send and received frame data, but when running on Normal20B I can receive can data but when I transmit I get no error, but the data is not sent.
Se my code below:
And now the log information: Configure ACAN2517FD Bit Rate prescaler: 1 Phase segment 1: 31 Phase segment 2: 8 SJW: 8 Actual bit rate: 500000 bit/s Exact bit rate ? yes Sample point: 80 currentOperationMode: 6 Configure ACAN2517FD done
At send operation I get: Sent OK, with no error
Do you know if some addition settings is required to work with CAN20B at 500kbps?