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all bms comunicating with nucleo board and balancing
Dependencies: CANnucleo LTC68041 mbed
Fork of BMS_2 by
Diff: main.cpp
- Revision:
- 10:66da8731bdb6
- Parent:
- 7:2dce8ed51091
- Child:
- 11:07d927da1a94
--- a/main.cpp Wed Dec 23 10:38:02 2015 +0000 +++ b/main.cpp Fri Mar 11 12:19:22 2016 +0000 @@ -7,14 +7,13 @@ * CAN transceivers are not part of NUCLEO boards, therefore must be added by you. * Remember also that CAN bus (even a short one) must be terminated with 120 Ohm resitors at both ends. * - * For more details see the wiki page <https://developer.mbed.org/users/hudakz/code/CAN_Nucleo_Hello/> + * For more details see the wiki page <https://developer.mbed.org/users/hudakz/code/CANnucleo_Hello/> * - * NOTE: If you'd like to use the official NUCLEO-F103RB boards - * comment out the line #define TARGET_STM32F103C8T6 1 + * NOTE: If you'd like to use the official NUCLEO boards comment out line 25 * * The same code is used for both NUCLEO boards, but: * For board #1 compile the example without any change. - * For board #2 comment out the line #define BOARD1 1 before compiling + * For board #2 comment out line 26 before compiling * * Once the binaries have been downloaded to the boards reset board #1. * @@ -23,31 +22,34 @@ #include "mbed.h" #include "CAN.h" -#define BOARD1 1 // comment out this line when compiling for board #2 +#define TARGET_STM32F103C8T6 1 // comment out this line when using official NUCLEO boards! +#define BOARD1 1 // comment out this line when compiling for board #2 -#if defined(BOARD1) - #define RX_ID 0x100 - #define TX_ID 0x101 +#if defined(TARGET_STM32F103C8T6) + #define LED_PIN PC_13 + const int OFF = 1; + const int ON = 0; #else - #define RX_ID 0x101 - #define TX_ID 0x100 + #define LED_PIN LED1 + const int OFF = 0; + const int ON = 1; #endif -// See wiki page <https://developer.mbed.org/users/hudakz/code/CAN_Nucleo_Hello/> -//#define TARGET_STM32F103C8T6 1 // comment out this line if you'd like to use the official NUCLEO-F103RB boards - -#if defined(TARGET_STM32F103C8T6) - DigitalOut led(PC_13); +#if defined(BOARD1) + const unsigned int RX_ID = 0x100; + const unsigned int TX_ID = 0x101; #else - DigitalOut led(LED1); + const unsigned int RX_ID = 0x101; + const unsigned int TX_ID = 0x100; #endif -int ledReceived; -Timer timer; -CAN can(PA_11, PA_12); // CAN Rx pin name, CAN Tx pin name, Automatic recovery from bus-off state enabled by default -CANMessage rxMsg; -CANMessage txMsg; -int counter = 0; +DigitalOut led(LED_PIN); +int ledState; +Timer timer; +CAN can(PA_11, PA_12); // CAN Rx pin name, CAN Tx pin name +CANMessage rxMsg; +CANMessage txMsg; +int counter = 0; volatile bool msgAvailable = false; /** @@ -72,37 +74,27 @@ can.attach(&onMsgReceived, CAN::RxIrq); // attach 'CAN receive-complete' interrupt handler #if defined(BOARD1) - #if defined(TARGET_STM32F103C8T6) - led = 0; // turn LED on - #else - led = 1; // turn LED on - #endif - timer.start(); + led = ON; // turn LED on + timer.start(); // start timer #else - #if defined(TARGET_STM32F103C8T6) - led = 1; // turn LED off - #else - led = 0; // turn LED off - #endif + led = OFF; // turn LED off #endif while(1) { if(timer.read() >= 1.0) { // check for timeout timer.stop(); // stop timer - timer.reset(); // reset timer (to avaoid repeated send) + timer.reset(); // reset timer counter++; // increment counter + ledState = led.read(); // get led state txMsg.clear(); // clear Tx message storage txMsg.id = TX_ID; // set ID - txMsg << counter; // append first data item (make sure that CAN message total data lenght <= 8 bytes!) - txMsg << led.read(); // append second data item (make sure that CAN message total data lenght <= 8 bytes!) - can.write(txMsg); // transmit message - printf("CAN message sent\r\n"); - - #if defined(TARGET_STM32F103C8T6) - led = 1; // turn LED off - #else - led = 0; // turn LED off - #endif + txMsg << counter; // append first data item + txMsg << ledState; // append second data item (total data lenght must be <= 8 bytes!) + led = OFF; // turn LED off + if(can.write(txMsg)) // transmit message + printf("CAN message sent\r\n"); + else + printf("Transmission error\r\n"); } if(msgAvailable) { msgAvailable = false; // reset flag for next use @@ -115,13 +107,14 @@ printf(" Data ="); for(int i = 0; i < rxMsg.len; i++) printf(" %x", rxMsg.data[i]); - printf("\r\n"); - if(rxMsg.id == RX_ID) { // if ID matches + printf("\r\n"); + // Filtering performed by software: + if(rxMsg.id == RX_ID) { // See comments in CAN.cpp for filtering performed by hadware rxMsg >> counter; // extract first data item - rxMsg >> ledReceived; // extract second data item - led = ledReceived; // set LED + rxMsg >> ledState; // extract second data item printf("counter = %d\r\n", counter); - timer.start(); + led = ledState; // set LED + timer.start(); // transmission lag } } }