PSoC™ 4 Forum Discussions

Hello,
I'm looking for a ready-made tool to perform an OTA Firmware Upgrade using the Security Key feature found in the Bootloader component v1.50.

That was once possible (maybe) with the Bootloader Host, but unfortunately (from AN97060) "Bootloader Host tool support for OTA is broken with the release of the CySmart 1.2 dongle firmware" - and we are using 1.2.1.21. I was initially thinking of downgrading the dongle's firmware, but I was unable to find the older versions on Cypress' site.

No CySmart version (PC, iOS, Android) seems to support the Security Key feature, so it looks like the only way to use it is by modifying the apps to get a customized one which supports that feature.

Can anyone shed some light on my doubts? Thanks!

BR - Stefano Voulaz​

Right now I have to navigate to the Bootloader.hex and program it to my device, then navigate to my Program.hex and program that to my device for it to work. 

Is there a way using PSoC Programmer to program my device with the Bootloader.hex and Program.hex at the same time?

I am using Chip: CY8C4245 LQI-483 and Program: PSoC Creator 4.

I have a custom designed board with 6 buttons and a slider and I am having a slight issue with a fraction of the boards (button and slider layout are in the attached .png). So the issue on these boards are mostly with button 6 but sometimes with 5 and even 4 (6 is far right and buttons go down as they go left).

As you can see from the pad location for the chip, it is between the buttons and the slider, I thought maybe the issue had to do with the distance the buttons were from the switch. However, when I run the program in debug mode I find that all of the buttons have very similar Cp (10-12pF). This is completely within the limits of this chip since the datasheet says SmartSense can do up to 55 pF.

Another issue I thought I may have had was the plastic thickness I had over the buttons. The datasheet says up to 5mm for plastic and I am at 3mm. The test that ruled this out for me was by removing the plastic and finding that even touching the button directly had the same issue.

Now when I change from SmartSense to Manual (with Run-time tuning) on some of these boards, it is able to pick up a signal wen the button is touched. On some boards this signal is weak but on others it is strong enough to trip the threshold. 

Is there anything I can do to fix this problem and increase the signal? I have already tried changing the resolution and sensitivity in the CapSense module.

I am currently working with my first HID over GATT project.  I am using the sample code for HID Keyboard as the starting point.  However, I am unable to understand two things:

1. The 8 bytes of data I send out using CyBle_HidssSendNotification.  What do they mean?  Where can I find the specification?

2. How do I know when I can send another key?  For example, if I want to send the string "Hello" what should I do?  I tried sending via subsequent calls but only the first one arrive.

Thank you.

Hi!

There is a project that requires communication between a battery and the inverter attached to the battery. The battery has an in built chip for communication. I am involved in designing the inverter. I have decided to use a PSoC-4M chip for inverter control.

The communication between the battery and inverter needs to happen over Modbus and/or CAN. Modbus is compulsary, CAN may or may not be included. The problem is that I have never used any of the two up till now. After searching, I found two PSoC-4M chips that have a CAN driver. But I can't find one with a Modbus driver. Neither can I find Modbus interface IC. Like we have SCB for I2C, UART, SPI etc. don't we have one for Modbus? Please help me find a way of implementing modbus support on PSoC-4M. 

Thank you

Hi all, I've been trying to get BLE notifications working correctly on the PROC, but I keep running into issues (perhaps they are related?)

1) I'm using an iOS app called LightBlue as my BLE client interface (I've used this for a year or two on dozens of BLE projects from other vendors, with no problems - so I think the app is solid). When I 'listen for notifications', and then perform an action which should send a notification from the PROC to the phone, I ALWAYS get 2 identical notifications. However, nowhere in my code am I sending the same notification twice (I've printf'd the hell outta my code and manually debugged). 

Is there something in ProcessEvents, or elsewhere that I should be looking for potential causes?

2) I'm trying to send multiple notifications in a row, however, I get a crash which pushes the PROC into the exception handler infinite loop (I should be able to send 4-6 per connection interval, but at this point, I don't care about performance, I just don't want a crash). It crashes after the very first notification.

Here is the code which causes it (ble_Run gets called every iteration of the main.c loop, fakesync_data is just a uint8 pointer to a few hundred data points - static data, so it's not disappearing off the stack):

void ble_Run(void)
{
    if (mIsSynching)
    {
        if(CyBle_GattGetBusStatus() == CYBLE_STACK_STATE_FREE && remainingPackets > 0)
        {
            ble_SendNotification(CYBLE_DATA_SYNC_DATA_CHAR_HANDLE, fakesync_data(), 20);
            --remainingPackets;
        }
        if (remainingPackets <= 0) // Reset the test
        {
            mIsSynching = 0;
            remainingPackets = 20;
        }
    }
    CyBle_ProcessEvents();
}

void ble_SendNotification(CYBLE_GATT_DB_ATTR_HANDLE_T characteristic,
                          uint8* data, uint16 length)
{
    CYBLE_GATTS_HANDLE_VALUE_NTF_T notification;
    notification.value.val  = data;
    notification.value.len  = length;
    notification.attrHandle = characteristic;
    if (CyBle_GattsNotification(cyBle_connHandle, &notification) != CYBLE_ERROR_OK) 
    {
        PRINT("ERROR sending notification\r\n");
    }    
    //CyBle_ProcessEvents();
}

Thanks!

And NOT the "A" which seems to crop up when I do a product search. Are they referring to the same thing?

Anyways, I'm trying to proto-type an application that uses this board. When I try to find the CY8CKIT-042-BLE kit in the "Create Project" dialog I can only find the CY8CKIT-042-BLE-A. When I select that "Target Kit" I end up with the incorrect processor. It shows the CYBL11573-56LQXI instead of the CY8C4247LQI and of course refuses to program it.

Cheers!!