PSoC™ 4 Forum Discussions

Hi,

When I send a notification to a client, the API "CyBle_GattsNotification()" sometimes returns the error "CYBLE_ERROR_MEMORY_ALLOCATION_FAILED".

What is the reason for memory allocation failed while send notification?

Thanks!

Aaron Deng

Hello.

I saw Project #047 post and it really fun to me and helped me alot.

I'v tried "Accelerometer Controlled Car" example and it doing very well. Very fun 😄

However when I changed acceleromemter sensor from Adxl355(ADC) to Adxl362(using SPI) it didnt work.

I think my Psoc 4 ble SPI setting is wrong, bcz when I tested Adxl362 with Arduino it worked.

Anybody help, adivce or example me about using Adxl362(SPI) Accelerometer sensor with Psoc 4 BLE?

I attached Adxl362 datasheet and my project.

Hi everybody! The project I'm currently working on requires a counter with the ability to increment or decrement its value based on two non periodic clock/count direction signals (in contrast to a generic counter that only needs to work with one clock/count direction pair). I can think of several ways to implementing this in software for the ARM core, but I don't have much of a clue when it comes to hardware design, I only know basic theory. Any tips for the hardware noob?

Thanks in advance,

Gino

I am new to PSoC and tring to do a project where i need to input an external analog signal into the psoc digitize it using an ADC and then send it through Ble. Can someone guide me.

I have been working on Eddystone Protocol ,I am currently Working on PSOC 4 BLE pioneer kit with  the Example program given by Cypress Semiconductor for BLE_pioneer_guide.

I was successfully able to get the Eddystone URL,but when I try to configure the Eddystone GATT configuration its not writing the URL.

One more thing I have observed in the PDF where Explanation of Eddystone is given ,the Service ,Charateristics and Custom UUID which have been given in PDF have been updated by Eddystone Github page.Link for Same I have given below.

https://github.com/google/eddystone/tree/master/configuration-service

So when I am configuring From other App like physical Web ,I am not able to Discover and connect to the Eddystone GATT configuration Service.

In the page its stated that the custom UUID for the Service is made for interoperablity.

If this is true ,can @cypress or anyone else open the Project to update the Document guide and Example program 

Thanks ,

Yogesh.D 

Hi, I have a simple question. I would like to build the new board with CYBLE-014008-00.

SCB0_TX of UART has two device port pin. Only one device port pin or both pins should be connected with controller?

Thanks  

Hi All

Our company is already using the PSoC 4 BLE with bootloader and bootloadable application updatable using UART SCB, no issues works extremely well. 

The attached PSoC 4 project is applicable for the below and runs on a kit-042 with the UART debug sent to a separate kit-044. 

The project uses I2C for the bootloading process and using a UART for debug which has some unexpected behaviour only after a cold start.

After the project is programmed, no cold start, the operation is as expected, the bootloader then bootloadable are executed successfully.

Upon disconnecting the USB and board to board UART tx and rx lines from the kit-044 (these lines parasitically power the kit-042) then reconnecting, the code executes sending "Boot St" then the PSoC reboots. This operation occurs continuously. Cycling the power has no effect, however downloading the project to the kit-042 again fixes the issue until a cold start is performed once again.

    /* Enable global interrupts. */
    CyGlobalIntEnable;
    
    /* Delay is needed here for PsoC reboots*/
    //CyDelay(1); 
    
    /* Start UART*/
    UART2_Start();
    UART2_PutString("Boot Start\r\n"); 

To resolve the issue we have tried reading the UART status, waiting until the UART buffer is empty, not enabling global interrupts, delaying the watchdog etc.. without success. We did find that was adding a 1ms delay after the interrupt enable appears to resolve the issue for the hardware/software combination detailed above. That is, on any cold start the operation is the same as a warm start.

Does anyone have any thoughts on this cold start issue or see an obvious error we have overlooked?

Thanks Kindly
Greg