NetBurner Community Forum

No worries. Even after almost 30 years doing electronics I still get RS232 wiring wrong or can't remember which pin is TX and RX and end up getting out the meter and checking the voltages on the connectors. )

Dave...

Hi Tod, Can you hook up the TX to a serial port on your PC and see if you see all the bytes are coming in there. This will indicate if writestring itself is sending all the bytes out the port at least. What is the purpose of RTS on the remote device? Is CTS being driven from your touch screen contro...

Try it in the dev board and if this is fine, suspect the power supplies on your custom board as a start. I assume you have all 3V3 inputs connected to power?

Have you got anything on the databus lines that could be active when not addressed?

Dave...

OK. Assuming you have TIED the SA0, SA1 and SA2 lines low, then the internal address is indeed 0x10. If you left these open, they are pulled high so check this. Actually for the NB code it will be 0x08 (0x10 divided by 2). The reason for this is that the address is shifted LEFT 1 bit to account for ...

If I try to access the bus with the following code: I2CInit(0xE); BYTE b = I2CStart(0, I2C_START_WRITE); iprintf("%X\n", b); b = I2CSend(2); iprintf("%X\n", b); I2CStop(); You are using an address of ZERO. Is this correct? This seems very unlikely for an I2C device. Be careful w...

Actually there is such a device. Check out www.wiznet.co.kr as they have a Wireless to Ethernet and RS232 interface that might be just what you are looking for. I have used their RS232 to Ethernet modules (over the internet) to debug and test an underwater remote tooling package with great success. ...

Hi there,

Is this you own custom board and if so, do you have you got PULLUPS (1K) on the bus lines? The Netburner module itself is not terminated. If you are using the DEV board, it has the 1K pullups fitted.


Which IO lines are you connected to? Are they the correct way around?

Regards
Dave...

Hi there, One of the problems I have run across with SCADA is reliability. At my old place of work we had a stubborn programmer who insisted he could design anything in a short time. We were looking to offer the client a SCADA interface to some remote sensors which would send data via GPRS so he set...

The microSD has no write protect so you either need to modify the library or tie that pin to GND. I needed the IO pin so I just modified the library function that returns the write protect state.

Dave...

Would love to afford Solidworks but my budget went on Altium Designer so had to plump with Alibre Design. Good enough for the work I do and I can generate the 3D models for the PCB design just as good anyway. I did a quick look around at other SD sockets but the mounting tabs and top side or bottom ...