Unstable operation with a new library

[R2D2RU]

Hi. I repeated device Arduino nano and Mega.

everything worked. But after upgrading the library, devices stopped working. Even a basic test reads unstable data

Device ID: DECA - model: 255, version: 15, revision: 15 Unique ID: FF:FF:FF:FF:00:00:00:00 Network ID & Device Address: PAN: FFFF, Short Address: FFFF Device mode: Data rate: 6800 kb/s, PRF: 16 MHz, Preamble: 128 symbols (code #4), Channel: #5 Device ID: DECA - model: 255, version: 15, revision: 15 Unique ID: FF:FF:FF:FF:FF:FF:FF:FF Network ID & Device Address: PAN: 00, Short Address: FFFF Device mode: Data rate: 6800 kb/s, PRF: 16 MHz, Preamble: 128 symbols (code #4), Channel: #5 Device ID: DECA - model: 1, version: 3, revision: 0 Unique ID: FF:FF:FF:FF:00:00:00:00 Network ID & Device Address: PAN: E0FF, Short Address: FFFF Device mode: Data rate: 6800 kb/s, PRF: 16 MHz, Preamble: 128 symbols (code #4), Channel: #5

What can be ???

[Rotzbua]

But after upgrading the library,

Version from to?

[R2D2RU]

This working version

05.05.2016 11:42 5 916 digitalWriteFast.h 05.05.2016 11:42 52 724 DW1000.cpp 05.05.2016 11:42 25 061 DW1000.h 05.05.2016 11:42 3 919 DW1000Device.cpp 05.05.2016 11:42 2 663 DW1000Device.h 05.05.2016 11:42 4 641 DW1000Mac.cpp 05.05.2016 11:42 2 565 DW1000Mac.h 05.05.2016 11:42 29 739 DW1000Ranging.cpp 05.05.2016 11:42 5 597 DW1000Ranging.h 05.05.2016 11:42 4 367 DW1000Time.cpp 05.05.2016 11:42 2 974 DW1000Time.h

[Rotzbua]

This is not really useful information. I suggested more a last commit hash.

My suggest is, that the irq pin is not right. There was a bug, that instead of the real pin the irq register was set. May look at your config.

[R2D2RU]

IRQ PIN is connected to D2

Old library:

DW1000randing.cpp: void DW1000RangingClass::initCommunication(unsigned int myRST, unsigned int mySS) { // reset line to the chip _RST = myRST; _SS = mySS; _resetPeriod = DEFAULT_RESET_PERIOD; // reply times (same on both sides for symm. ranging) _replyDelayTimeUS = DEFAULT_REPLY_DELAY_TIME; //we set our timer delay _timerDelay = DEFAULT_TIMER_DELAY;

DW1000.begin(0, myRST);
DW1000.select(mySS);

}

DW1000.cpp: void DW1000Class::begin(int irq, int rst) { // generous initial init/wake-up-idle delay delay(5); // start SPI SPI.begin(); SPI.usingInterrupt(irq); // pin and basic member setup _rst = rst; _irq = irq; _deviceMode = IDLE_MODE; // attach interrupt attachInterrupt(_irq, DW1000Class::handleInterrupt, RISING); } Interrupt handler is not beautiful, but it is correct.....

I think that the problem in the SPI speed ..... May need to be replaced cmos chip 74LV245 - ttl-cmos chip 74LCX(LVC)245

[Rotzbua]

DW1000.begin(0, myRST); 0!=D2 =>DW1000.begin(D2, myRST);

[R2D2RU]

No! This version of the library works!

[R2D2RU]

oid DW1000Class::begin(int irq, int rst) { // generous initial init/wake-up-idle delay delay(5); // start SPI SPI.begin(); SPI.usingInterrupt(irq); // pin and basic member setup _rst = rst; _irq = irq; _deviceMode = IDLE_MODE; // attach interrupt attachInterrupt(_irq, DW1000Class::handleInterrupt, RISING); } pin D2 - interrupt 0

[Rotzbua]

.... told you:

My suggest is, that the irq pin is not right. There was a bug, that instead of the real pin the irq register was set. May look at your config.

So change from old => new version.

DW1000.begin(0, myRST); 0!=D2 =>DW1000.begin(D2, myRST);

[R2D2RU]

What you write is true for the new library

[R2D2RU]

In the old version need to specify the interrupt number.

[R2D2RU]

Has reduced the speed of SPI. Began working the basic test. Randing not work.

[Rotzbua]

@R2D2RU Is this still an issue?