I2C connected to DA14531MOD-devkit-vC using CodeLess

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Last post
Fri, 2020-07-24 08:07
#1
Gotfredsen
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I2C connected to DA14531MOD-devkit-vC using CodeLess

Hi,

Using the done-in-a-day kit I have managed to turn a LED on and off connected toSCLandSDAon the small board's (DA14531MOD-devkit-vC) mikroBUS, using the "DA14531 standalone (SET-TWO)" firmware. I also managed to test digital input setting the pins high and low, but when I configure for I2C using "AT+IOCFG=11,8" and "AT+IOCFG=8,7", and then run a "AT+I2CSCAN" with a I2C device connected to SDA and SCL, the system hangs for a while, after which it reboots (I believe), I have a heartbeat LED "AT+IOCFG=9,27" running, which suddenly turns off - assuming a reset/reboot.

我曾经尝试过与mainboard disconnected, powering the small board using the mikroBUS 3V and GND. Using the iOS app I then connect via BLE and run the same AT commands above, incl testing the LED's and digital input, all perfectly running, but the I2C is still just crashing.

Device:
DA14531 SmartBond TINY Module
Fri, 2020-07-24 12:06
PM_Dialog
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Hi Gotfredsen,

Hi Gotfredsen,

Thanks for your forum post and for taking part in the “done-in-a-day”.

So, you are using the codeless_531_standalone_set_two.hex from the Flash Programmer tool and after connecting the module to a peer device (iOS app), the connection drops. Please correct me if I am mistaken.

Does the connection drop only when having I2C configuration? If you don’t have any I2C activity, can you replicate this behavior? Is the connection stable or it drops again?

你尝试使用另外两个pre-com有空吗piled images (codeless_531_datadump and codeless_531_standalone)?

Thanks, PM_Dialog

Fri, 2020-07-24 15:20
Gotfredsen
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So it has nothing to do with

So it has nothing to do with a peer device. That was just to see if it made a difference from using PyTTY or similar Serial Terminal - and it didn't.

As you can see in the attached image, I have activate the LED on the small board using the Heartbeat function "AT+IOCFG=9,27"
I then configure the SDA and SCL and run a I2CSCAN as per the attached screenshot from my serial terminal program. After a minute or so (after the red arrow), it returns a dot (.) and on the next line "+READY" and the LED goes out.

Which is why I assume the boards resets after a while. I am trying without anything attached, but I have tried with many different I2C sensors, without luck.

And...

  • I can only use Codeless SET_TWO, since I2C is not supported on the two other Codeless version as per the documentation. (Also I have tried, but you get an error when you try to configure the SDA and/or SLA.)
  • I have also tried running the I2CEEPROM example, using both this done-in-a-day-kit and the DA14531MOD USB Kit, and there I can't get I2C to work either. I do have a I2C EPPROM with same slave address, same size (0x20000) and same page size. It doesn't crash, but just give me I2C error 0x01...
  • I have just tried with DA14531MOD USB Kit and also SET_TWO. Here I am using the SDA and SCL as marked on the board and the Heartbeat:
    Heartbeat:AT+IOCFG=9,27
    SDA:AT+IOCFG=8,8
    SCL:AT+IOCFG=2,7
    Scan:AT+I2CSCAN
    ...but since I can't get to the Serial Console using PuTTY or similar, I use the iOS APP ... and I get same result, except I don't have to wait, it switches the LED off immidiately and drops the connection to my iPhone, so here I also expect a crash...
Attachment:
PDF iconDevkit and Serial Console
Mon, 2020-07-27 16:28
PM_Dialog
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Hi Gotfredsen,

Hi Gotfredsen,

Thanks for your detail response. Please download the “SET_TWO” CodeLess firmware, connect the module with your iPhone and leave as it is ( without sending any of the available AT comments and without I2C activity). Can you replicate the connection drop?

Thanks, PM_Dialog

Mon, 2020-07-27 16:34
(Reply to #4)
Gotfredsen
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I am using SET-TWO, as

Iamusing SET-TWO, as mentioned before. There are no reset/reboot/connection drop, unless I issue an AT+I2CSCAN command.

Fri, 2020-07-31 14:08
PM_Dialog
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Hi Gotfredsen,

Hi Gotfredsen,

Could you please run it with the debugger attached and check if It stacks anywhere? You should enable the development debug for the debugging (#define CFG_DEVELOPMENT_DEBUG).

Thanks, PM_Dialog

Fri, 2020-07-31 15:44
(Reply to #6)
Gotfredsen
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Hi,

Hi,

Sorry for my ignorance, but does that mean I have to re-compile the SET_TWO, with the #define set, or is it at "thing" on the development boards?
If I have to recompile, I have an issue since the resulting code is larger than 32k, which is the limitation on my Kiel/uVision. I believe I have tried a while ago, and that this error came up, possibly on one of the other CODELESS version, but I can only imaging the SET_TWO is larger.

Thanks again for you assistance,

Bjarke

Mon, 2020-08-17 17:12
PM_Dialog
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Hi Gotfredsen,

Hi Gotfredsen,

Yes – in order to run it in debug mode you should use the Keil IDE and attach the debugger. Would it be possible o do it?

Thanks, PM_Dialog