CYW20721 interface to program a blank chip (re: module CYBT-483062-02)

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zach_4866496
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First question asked Welcome!

Hello,

I am looking for information on how to program a new module in-system at our factory. Since SWD is not accessible, where can i find information about the proper interface to use? (would like to confirm our assumption that the ROM code allows programming over the UART TX/RX pins on the CYBT-483062-02 module.)

Thanks!

-Zach

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SheetalJ
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First comment on KBA 750 replies posted 500 likes received

Hi Zach,

Yes your assumption is correct. CYW20721 chip uses HCI UART for programming. 

I would suggest you to have a look at the CYW208xx Features & Peripherals guide (section 5.11.2 and section 7)- https://www.cypress.com/file/468621/download

Though the document is for CYW208xx chips, programming procedure is same for both the chips.

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SheetalJ
Moderator
Moderator
Moderator
First comment on KBA 750 replies posted 500 likes received

Hi Zach,

Yes your assumption is correct. CYW20721 chip uses HCI UART for programming. 

I would suggest you to have a look at the CYW208xx Features & Peripherals guide (section 5.11.2 and section 7)- https://www.cypress.com/file/468621/download

Though the document is for CYW208xx chips, programming procedure is same for both the chips.

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