Hi to everybody,based on the CySmart library (C#) I am working on a GUI to transfer data between a peripheral sensor and the Cypress BLE Dongle. I use...
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Hi to everybody,
based on the CySmart library (C#) I am working on a GUI to transfer data between a peripheral sensor and the Cypress BLE Dongle. I used the CySmart examples available.
I like to get some informations from the sensor after the first connection as name, manufacturer, firmware version and so on.
Using the API CyReadMultipleCharacteristicResult I get two problems:
1. I am not shure how to use the API. I would like to have an example for this.
My code based on the CySmart example is:
/// GATT client callback class
/// </summary>
class GattClientCb : CyGattClientCallback
{
public CySmart.Common.Base.Compatibility.Net20.Action<CyReadMultipleCharacteristicResult, CyStatus> ReadMultipleChHandles { get; set; }
public override void OnReadMultipleCharacteristics(CyReadMultipleCharacteristicResult result, CyStatus status)
{
if (ReadMultipleChHandles != null)
ReadMultipleChHandles(result, status);
}
}
//Read sensor infos
private void Read_Sensor_Infos()
{
AutoResetEvent sync = new AutoResetEvent(false);
CyApiErr err = CyApiErr.OK;
//...
GATTClientEventCallback.ReadMultipleChHandles = (CyConnectResult, status) =>
{
//copy byte values to variables?
//...
sync.Set();
};
err = GattClient.ReadMultipleCharacteristic(new CyReadMultipleCharacteristicInfo
(COMPLETE_NAME, MANUFACTURER, HARDWARE, FIRMWARE, MODEL_NUMBER, LABEL));
}
2. The Callback ReadMultipleChHandles delivers only 16 bytes, not more.
The length seems to be truncated to 16. The handle LABEL in my list alone has got 64 bytes. I tried something like the following changing the delivered length, but this doesn't work. What is going wrong?
BLEManagerCallBack.GetDefaultDataLengthHandler = (result, status) =>
{
//write debug line...
}
BLEManager.GetDefaultDataLength();
Thanks for your help!
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Nov 21, 2018
Solved
