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Hi,
I am trying to start a BLE project using Modul Toolbox for chip: CYW20721 - QFN40 starting from CYW920721B2evk-03.
I only have the eval board CYW920721B2evk-02; when I import the example 'find me' and load it on the cypress eval board (CYW920721B2evk-02) I see in the app CySmart, advertised a BT device 'find me'.
We built an Eval board with QFN40 (without External Power amplifier - BT RF pin16 is routed to a chip BT antenna though a filter). I loaded (over Host UART) the example 'find me' for Cypress eval board CYW920721B2evk-03 and I was not able to see any advertisement (on CySmart).
Then I realized (in Device Configurator 2.1) that 'find me' example is using Low Noise/External Power Amplifiers. I don't have the schematic (or the actual Cypress Eval board CYW920721B2evk-03) to confirm if External amplifier is present ... but I don't have it on my custom eval board.
Should I uncheck the check box and recompile? Do I have to change anything in the project?
I already verified that (without success) ... meaning I don't see anything advertised in CySmart after I recompiled without External Power Amplifier.
I connected PUART pins to MiniProg4 UART pins and I can see the following log generated:
**** Find Me Profile Application Start ****
Unhandled Bluetooth Management Event: 0x15 (21)
Bluetooth Enabled (success)
Local Bluetooth Address: [20 72 1b 29 6b 21 ]
Advertisement State Change: 3
Advertisement started
Can someone provide me the schematic/PCB for board: CYW920721B2evk-03? Is this a Software problem or A Hardware problem? How can I debug this?
My custom Eval board has 24MHz crystal and all decoupling capacitors required for power rails.
Thank you,
galin
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Hi,
CYW920721B2EVK board is not available in the open channel currently. Please contact your local sales representative to order the samples. See:
https://www.cypress.com/documentation/development-kitsboards/cyw920721b2evk-02-evaluation-kit
Also, you can have several versions of ModusToolbox on a Windows 10 laptop. Using the latest version is preferred.
Best regards
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Hi,
Since you can see logs given in PUART, I think the program was running successfully. That's a problem rather in hardware or configuration, etc.
You could apply for an EVB board at the Cypress Store.
Best regards
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Hi Charles,
Thank you for your fast response.
I checked the link https://www.cypress.com/wireless-kits but I was not able to see the eval board: CYW920721B2EVK-03.
After more debugging (using printf) I am able to see that:
- on custom Eval board (with QFN40) we see function adv_led_update() is called with app_bt_adv_conn_state=1. The timer wiced_start_timer(&adv_led_timer, ADV_LED_UPDATE_RATE_MS); is enabled but will never fire (later on).
I will investigate more and let you know my findings.
Also I realized that I am using ModusToolbox 2.1.0 --> should I update to latest ModusToolbox? Can I have two ModusToolbox installed (on a Windows 10 laptop)?
Thank you,
Alin
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Hi,
CYW920721B2EVK board is not available in the open channel currently. Please contact your local sales representative to order the samples. See:
https://www.cypress.com/documentation/development-kitsboards/cyw920721b2evk-02-evaluation-kit
Also, you can have several versions of ModusToolbox on a Windows 10 laptop. Using the latest version is preferred.
Best regards