-
Notifications
You must be signed in to change notification settings - Fork 17
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Version 2.1.5, Fixed retransmission attempts setting bug, Added NoRet…
…ransmissionAttemptsDemoTeensy3x.ino sketch.
- Loading branch information
1 parent
8a83c2a
commit 5b86a8c
Showing
5 changed files
with
230 additions
and
55 deletions.
There are no files selected for viewing
155 changes: 155 additions & 0 deletions
155
examples/NoRetransmissionAttemptsDemoTeensy3x/NoRetransmissionAttemptsDemoTeensy3x.ino
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,155 @@ | ||
| //—————————————————————————————————————————————————————————————————————————————— | ||
| // ACAN2517FD Demo for "ThreeAttempts" and "Disabled" setting, | ||
| // using hardware SPI1, with an external interrupt | ||
| // For this sketch, the MCP2517FD should be alone on the CAN bus. | ||
| // | ||
| // A CAN message should be acknowledged by a receiver. | ||
| // By default, no receiver -> no acknnowledge, the message is sent indefinitely | ||
| // The settings.mControllerTransmitFIFORetransmissionAttempts can be used for | ||
| // specifying: | ||
| // - only one attempt (ACAN2517Settings::Disabled); | ||
| // - three attempts (ACAN2517Settings::ThreeAttempts); | ||
| // - unlimited number of attempts (ACAN2517Settings::Unlimited, default setting). | ||
| //—————————————————————————————————————————————————————————————————————————————— | ||
|
|
||
| #include <ACAN2517FD.h> | ||
|
|
||
| //—————————————————————————————————————————————————————————————————————————————— | ||
| // MCP2517 connections: adapt theses settings to your design | ||
| // As hardware SPI is used, you should select pins that support SPI functions. | ||
| // This sketch is designed for a Teensy 3.5, using SPI1 | ||
| // But standard Teensy 3.5 SPI1 pins are not used | ||
| // SCK input of MCP2517 is connected to pin #32 | ||
| // SDI input of MCP2517 is connected to pin #0 | ||
| // SDO output of MCP2517 is connected to pin #1 | ||
| // CS input of MCP2517 should be connected to a digital output port | ||
| // INT output of MCP2517 should be connected to a digital input port, with interrupt capability | ||
| //—————————————————————————————————————————————————————————————————————————————— | ||
|
|
||
| static const byte MCP2517_SCK = 32 ; // SCK input of MCP2517 | ||
| static const byte MCP2517_SDI = 0 ; // SDI input of MCP2517 | ||
| static const byte MCP2517_SDO = 1 ; // SDO output of MCP2517 | ||
|
|
||
| static const byte MCP2517_CS = 31 ; // CS input of MCP2517 | ||
| static const byte MCP2517_INT = 38 ; // INT output of MCP2517 | ||
|
|
||
| //—————————————————————————————————————————————————————————————————————————————— | ||
| // MCP2517 Driver object | ||
| //—————————————————————————————————————————————————————————————————————————————— | ||
|
|
||
| ACAN2517FD can (MCP2517_CS, SPI1, MCP2517_INT) ; | ||
|
|
||
| //—————————————————————————————————————————————————————————————————————————————— | ||
| // SETUP | ||
| //—————————————————————————————————————————————————————————————————————————————— | ||
|
|
||
| void setup () { | ||
| //--- Switch on builtin led | ||
| pinMode (LED_BUILTIN, OUTPUT) ; | ||
| digitalWrite (LED_BUILTIN, HIGH) ; | ||
| //--- Start serial | ||
| Serial.begin (38400) ; | ||
| //--- Wait for serial (blink led at 10 Hz during waiting) | ||
| while (!Serial) { | ||
| delay (50) ; | ||
| digitalWrite (LED_BUILTIN, !digitalRead (LED_BUILTIN)) ; | ||
| } | ||
| //--- Define alternate pins for SPI1 (see https://www.pjrc.com/teensy/td_libs_SPI.html) | ||
| Serial.print ("Using pin #") ; | ||
| Serial.print (MCP2517_SDI) ; | ||
| Serial.print (" for MOSI: ") ; | ||
| Serial.println (SPI1.pinIsMOSI (MCP2517_SDI) ? "yes" : "NO!!!") ; | ||
| Serial.print ("Using pin #") ; | ||
| Serial.print (MCP2517_SDO) ; | ||
| Serial.print (" for MISO: ") ; | ||
| Serial.println (SPI1.pinIsMISO (MCP2517_SDO) ? "yes" : "NO!!!") ; | ||
| Serial.print ("Using pin #") ; | ||
| Serial.print (MCP2517_SCK) ; | ||
| Serial.print (" for SCK: ") ; | ||
| Serial.println (SPI1.pinIsSCK (MCP2517_SCK) ? "yes" : "NO!!!") ; | ||
| SPI1.setMOSI (MCP2517_SDI) ; | ||
| SPI1.setMISO (MCP2517_SDO) ; | ||
| SPI1.setSCK (MCP2517_SCK) ; | ||
| //----------------------------------- Begin SPI1 | ||
| SPI1.begin () ; | ||
| //--- Configure ACAN2517 | ||
| Serial.print ("sizeof (ACAN2517Settings): ") ; | ||
| Serial.print (sizeof (ACAN2517FDSettings)) ; | ||
| Serial.println (" bytes") ; | ||
| Serial.println ("Configure ACAN2517") ; | ||
| ACAN2517FDSettings settings (ACAN2517FDSettings::OSC_4MHz10xPLL, 125 * 1000, DataBitRateFactor::x4) ; | ||
| //--- The MCP2517FD internal RAM is limited, the size of the receive buffer is reduced | ||
| settings.mControllerReceiveFIFOSize = 2 ; | ||
| //--- Configure regular transmit chain (used when message.idx == 0, default) | ||
| settings.mDriverTransmitFIFOSize = 0 ; | ||
| settings.mControllerTransmitFIFOSize = 1 ; | ||
| settings.mControllerTransmitFIFORetransmissionAttempts = ACAN2517FDSettings::Disabled ; | ||
| //--- Configure TXQ transmit chain (used when message.idx == 255) | ||
| settings.mControllerTXQSize = 1 ; | ||
| settings.mControllerTXQBufferRetransmissionAttempts = ACAN2517FDSettings::Disabled ; | ||
| const uint32_t errorCode = can.begin (settings, [] { can.isr () ; }) ; | ||
| if (errorCode == 0) { | ||
| Serial.print ("Bit Rate prescaler: ") ; | ||
| Serial.println (settings.mBitRatePrescaler) ; | ||
| Serial.print ("Arbitration Phase segment 1: ") ; | ||
| Serial.println (settings.mArbitrationPhaseSegment1) ; | ||
| Serial.print ("Arbitration Phase segment 2: ") ; | ||
| Serial.println (settings.mArbitrationPhaseSegment2) ; | ||
| Serial.print ("Arbitration SJW:") ; | ||
| Serial.println (settings.mArbitrationSJW) ; | ||
| Serial.print ("Actual Arbitration Bit Rate: ") ; | ||
| Serial.print (settings.actualArbitrationBitRate ()) ; | ||
| Serial.println (" bit/s") ; | ||
| Serial.print ("Exact Arbitration Bit Rate ? ") ; | ||
| Serial.println (settings.exactArbitrationBitRate () ? "yes" : "no") ; | ||
| Serial.print ("Arbitration Sample point: ") ; | ||
| Serial.print (settings.arbitrationSamplePointFromBitStart ()) ; | ||
| Serial.println ("%") ; | ||
| Serial.print ("Data Phase segment 1: ") ; | ||
| Serial.println (settings.mDataPhaseSegment1) ; | ||
| Serial.print ("Data Phase segment 2: ") ; | ||
| Serial.println (settings.mDataPhaseSegment2) ; | ||
| Serial.print ("Data SJW:") ; | ||
| Serial.println (settings.mDataSJW) ; | ||
| }else{ | ||
| Serial.print ("Configuration error 0x") ; | ||
| Serial.println (errorCode, HEX) ; | ||
| } | ||
| } | ||
|
|
||
| //---------------------------------------------------------------------------------------------------------------------- | ||
|
|
||
| static uint32_t gBlinkLedDate = 1000 ; | ||
| static uint32_t gReceivedFrameCount = 0 ; | ||
| static uint32_t gSentFrameCount = 0 ; | ||
|
|
||
| //—————————————————————————————————————————————————————————————————————————————— | ||
|
|
||
| void loop() { | ||
| CANFDMessage frame ; | ||
| if (gBlinkLedDate < millis ()) { | ||
| gBlinkLedDate += 500 ; | ||
| digitalWrite (LED_BUILTIN, !digitalRead (LED_BUILTIN)) ; | ||
| frame.len = 64 ; | ||
| for (uint8_t i=0 ; i<frame.len ; i++) { | ||
| frame.data [i] = i ; | ||
| } | ||
| // frame.idx = 255 ; // Uncomment this for sending throught TXQ | ||
| const bool ok = can.tryToSend (frame) ; | ||
| if (ok) { | ||
| gSentFrameCount += 1 ; | ||
| Serial.print ("Sent: ") ; | ||
| Serial.println (gSentFrameCount) ; | ||
| }else{ | ||
| Serial.println ("Send failure") ; | ||
| } | ||
| } | ||
| if (can.available ()) { | ||
| can.receive (frame) ; | ||
| gReceivedFrameCount ++ ; | ||
| Serial.print ("Received: ") ; | ||
| Serial.println (gReceivedFrameCount) ; | ||
| } | ||
| } | ||
|
|
||
| //—————————————————————————————————————————————————————————————————————————————— |
Binary file not shown.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters