PSoC™ 4 Forum Discussions

I have, up until now, used an Android app to connect to my BLE peripheral.  Now I have need to connect CY8CKIT eval board to the peripheral.  I am looking at the UART_to_BLE_Central project.  How does the Central find and connect automatically to the peripheral?  By device address?  Where is this parameter set?

I have sent notifications from the peripheral to the Android app, how do I send a notification from the Central on the eval board to a characteristic in the profile on the peripheral?  Does the central need to "discover" the characteristic on the peripheral or do you define the characteristic the same on both?

Thanks

Rich

Hi 

I have 2 proc boards communicating to each other (typical master and slave)

The master attempts to connect to the slave and on connection the slave sends the master information. The master then disconnects from the slave and waits for 10 minutes before reconnecting. This continues indefinitely.

In the event that the master fails to connect to the slave (e.g. when the slave is out of range or was powered off) it fails to connect and I get a connection timeout as expected. However whenever the master attempts to reconnect to the slave and the slave is available it fails to reconnect. I can turn the master off and on and it still fails to connect. the only way to fix this is to reprogram the master

To connect I call CyBle_GapcConnectDevice((CYBLE_GAP_BD_ADDR_T*)&peerBdAddr) and it this works (usually) and in the event of a failed connection I call CySoftwareReset() to reset the master.

Is it possible that when calling for a connection it stores this information such that a reset does not clear it? and in that case is there any way to clear this information? 

I cannot call CyBle_GapDisconnect(connHandle.bdHandle) as I don't receive a connection handle if no connection is established.

Due to confidentiality reasons I am unable to upload the full project

Thanks in advance for the help

Jack

What are the differences?

Which one is best suited to debug/develop 022001-00 PRoC BLE?

Thanks

Andy

Hello folks,

I'm still working on the CY5677 dongle with the example linked by Madhu Sudhan (thanks to him) at: http://www.cypress.com/forum/proc-ble/cysmart-api-c-example?page=1

I got an issue wich is now solved as mentionned here : http://www.cypress.com/forum/proc-ble/cy5677-cc2650

I'm close to the end of my application but I'm stuck since a long time on an other issue which is notifications are never enable.

I tried to make it work with CYSMART and it's working nicely, same with a phone but never with this application. I tried to solve the issue with the same way Madhu Sudhan solved the last issue but never worked. I join you the code of the notify button : 

private void Notify_Button_Click(object sender, System.EventArgs e)
        {
            AutoResetEvent sync = new AutoResetEvent(false);
            CyApiErr err = CyApiErr.OK;

            CharHandle = 0x0027;
            CCCDHandle = 0x0028;
            // Setup the descriptor write handler
            GATTClientEventCallback.DescriptorWriteHandler = (CyConnectResult, status) =>
            {
                if (status != CyStatus.BLE_STATUS_OK)
                    err = new CyApiErr("Failed to Write: Reason: " + status.ToString());
                sync.Set();
            };

            if (!(NotificationEnabled))
            {
                var NotifByte = new byte[1];

               NotifByte = BitConverter.GetBytes(0x0001);
 

                Array.Resize(ref NotifByte, 1);
                // Initiate write descriptor request to the CCCD

                err = GattClient.WriteDescriptor(new CyGattWriteInfo(CCCDHandle, NotifByte));
 

                if (err.IsOK)
                {
                    sync.WaitOne();
                    NotificationEnabled = true;
                    Notify_Button.Text = "Disable Notification";
                }
            }
            else
            {

                var NotifByte = new byte[1];

                NotifByte = BitConverter.GetBytes(0x0000);


                Array.Resize(ref NotifByte, 1);

                       err = GattClient.WriteDescriptor(new CyGattWriteInfo(CCCDHandle, NotifByte ));

                if (err.IsOK)
                {
                    sync.WaitOne();
                    NotificationEnabled = false;
                    Notify_Button.Text = "Enable Notification";
                }
            }
        }

Err is variable is ok when I debug so the transmission seems to be well but the principle of activation seems failed. With CySmart I'm able to write "01:00" or "0100" and it's working. 

Plus I have a question about that on CySmart I can see what is on the joined picture. With characteristic which haven't notification mod I'm ok to write CharHandle and CCCDHandle nicely but with the notification characteristic I have 3 values as joined 0x0027 to 0x0029. What should I put where ?

Regards,

Guillaume

I am having a tough time getting a PROC BLE to actually start without ending up in CY_NORETURN in CM0Start.c.  The program does not get past the CyBLE_Start line of code.

Project attached.

Very frustrating.  Any ideas?

Thank you,
Tom

I have an idea for a BLE application and I’m looking for advice on how I might configure the PSOC BLE to do what I want.  Here is the behavior I’m looking for:

    
1. Multiple BLE that will come into range of each other and then go out of range.
    
2. Each device will have the same hardware/software.
    
3. Each device will broadcast or announce its presence.In that announcement, I would like to broadcast a tag (let’s say 4 bytes) which indicates a bundle of information (let’s say 32 bytes) that the given device has.The device will send one tag per announcement and cycle through all the tags and repeat.
    
4. During the interval between announcements the device will listen for two things.
   a) Announcements from other devices.
   b) Connection requests from other devices.
    
5. When the device gets an announcement from another device, the device will look at the tag and determine if it has that one of the other devices bundle.If the device already has this bundle, the device will just keep listening and announcing.
    
6. If the device gets an announcement with a new bundle it does not have, the device will request a connection with the other device and get that bundle. It will then close the connection and continue with listening (step 4).
    
7. If the device gets a connection request, the device will except the connection, send the requested bundle, and then close the connection.It will then return to listening (step 4).
    
8. At a timeout period (+/- some randomness) the device will broadcast its next tag (step 3) and continue the cycle.
    
9. Over time, I would expect all devices to have a complete set of all bundles.
   

I will try to include a state diagram.  I’m having a hard time figuring out the roles I need to put the PSOC BLE device into how to switch roles.  What roles should I use? Are there example (like in the 100 days 100 projects) that might help me.  This is a, non-commercial, hobby project and I can explain exactly what I’m doing if anyone cares.

If I have an ongoing interrupt from a button press and I change the priority mid call does it change the priority of the ongoing interrupt or the next time the interrupt is triggered.