A350 not work download new record

[brux88]

Regarding the issue, everything works perfectly with the Anviz A350C device. However, with the newer device, we are facing a problem. Specifically, the method for downloading records seems to behave differently:

From my understanding, this method is supposed to:

Download all new records the first time.
Mark them as "already downloaded."
On subsequent requests, download only records that haven’t been downloaded yet.
However, with the new device, it appears to always download all records, regardless of whether they have been downloaded before.

Could you please confirm if this is the expected behavior for the newer device, or if it might be related to the firmware or SDK?

I look forward to your guidance and support. Thank you once again for your assistance.
i attacmnet a picture of 350c e 350 firmware

This is the command of you sdk 2.52:

namespace Anviz.SDK.Commands
{
class GetRecordsCommand : Command
{
private const byte GET_RECORDS = 0x40;
private const byte GET_ALL_RECORDS = 0x1;
private const byte GET_NEW_RECORDS = 0x2;
public GetRecordsCommand(ulong deviceId, bool isFirst, bool onlyNew, ulong amount) : base(deviceId)
{
byte recordType = onlyNew ? GET_NEW_RECORDS : GET_ALL_RECORDS;
byte kind = isFirst ? recordType : (byte)0;
BuildPayload(GET_RECORDS, new byte[] { kind, (byte)Math.Min(amount, Record.MAX_RECORDS) });

    }
}

}

namespace Anviz.SDK
{
public partial class AnvizDevice
{
public async Task<List> DownloadRecords(bool onlyNew = false)
{
var statistics = await GetDownloadInformation();
var recordAmount = onlyNew ? statistics.NewRecordAmount : statistics.AllRecordAmount;
var records = new List((int)recordAmount);
var isFirst = true;
while (recordAmount > 0)
{
var response = await DeviceStream.SendCommand(new GetRecordsCommand(DeviceId, isFirst, onlyNew, recordAmount));
var counter = response.DATA[0];
recordAmount -= counter;
for (var i = 0; i < counter; i++)
{
records.Add(new Record(response.DATA, 1 + i * Record.RECORD_LENGTH));
}
isFirst = false;
}
return records;
}
}
}

[JohnKiller]

Can you try calling ClearNewRecords?

[brux88]

after DownloadRecords Commands you say to try to execute the commands clearenewrecords?

because on the a350c device everything seems to work automatically it seems that it only downloads the records that I have not downloaded previously, while in this a350, it continues to download all the records even if I have already downloaded them.

[brux88]

i try this:

 [HttpGet("getRecords/{idDevice}/{newRecord}")]
 public async Task<IActionResult> GetRecords(ulong idDevice,int newRecord)
 {
     try
     {


         var device = _anvizManager.GetConnectedDeviceInfoById(idDevice);
         if (device == null)
         {
             return BadRequest( $"Dispositivo non Torvato con Id: {idDevice}");

         }
         var result = await device.DownloadRecords(onlyNew: newRecord == 0 ? true: false);

          await device.ClearNewRecords();

         // await _anvizManager.SendCommandToDevice(command.DeviceId, command.Command);
         return Ok(result);
     }
     catch (Exception ex)
     {
         return BadRequest( $"Errore durante l'invio del comando al dispositivo: {ex.Message}");
     }
 }

namespace Anviz.SDK.Commands
{
    class ClearRecordsCommand : Command
    {
        internal const byte DELETE_ALL = 0x00;
        internal const byte CLEAR_ALL = 0x01;
        internal const byte CLEAR_AMOUNT = 0x02;
        private const byte DELETE_RECORDS = 0x4E;
        public ClearRecordsCommand(ulong deviceId, byte deleteMode, ulong deleteAmount) : base(deviceId)
        {
            var ret = new byte[4];
            ret[0] = deleteMode;
            Bytes.Write(3, deleteAmount).CopyTo(ret, 1);
            BuildPayload(DELETE_RECORDS, ret);
        }
    }
}

namespace Anviz.SDK
{
    public partial class AnvizDevice
    {
        public async Task ClearNewRecords()
        {
            await DeviceStream.SendCommand(new ClearRecordsCommand(DeviceId, ClearRecordsCommand.CLEAR_ALL, 0));
        }

        public async Task ClearNewRecords(ulong amount)
        {
            await DeviceStream.SendCommand(new ClearRecordsCommand(DeviceId, ClearRecordsCommand.CLEAR_AMOUNT, amount));
        }

        public async Task DeleteAllRecords()
        {
            await DeviceStream.SendCommand(new ClearRecordsCommand(DeviceId, ClearRecordsCommand.DELETE_ALL, 0));
        }
    }
}

but not work, the same problem.

[JohnKiller]

What does GetDownloadInformation tell? After ClearNewRecords it should have NewRecordAmount set to 0

[brux88]

I did other tests, now adding clearnewrecord it works, but I don't understand how it can be that with a350c without clearnewrecord it worked

[JohnKiller]

It is probably a setting that can be changed