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RiHe_4599321
Level 1
Level 1

Hello,

We are integrating a CYBT-333032-33 Module onto an MSP430 Design.  Can I get the confirmation that these pins (disregard Column 3, that is internal for us) are appropriate for EZ Serial Interface and Control?  

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Also, on initialization I can expect the Initialization burst message to come in on the UART_TXD line/pad per the EZ-Serial Spec.  At 115.2K.  This is our confirmation of a functional interface and we will first check it on a scope.

Regards,

Richard Hecht

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1 Solution
SheetalJ
Moderator
Moderator
Moderator
750 replies posted 500 likes received 500 replies posted

Hi Richard,

I am afraid you have selected wrong BT UART pins. Please refer Table 4 in CYBT-333032 datasheet https://www.cypress.com/file/464611/download.

Pad 20, 16, 17 & 18 are dedicated for HCI UART pins. For PUART, please select

Pad 15 (P4) as PUART_RXD,

Pad 14 (P31) as PUART_TXD,

Pad 2 (P3) as PUART_CTS,

Pad 19 (P30) as PUART_RTS.

View solution in original post

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2 Replies
SheetalJ
Moderator
Moderator
Moderator
750 replies posted 500 likes received 500 replies posted

Hi Richard,

I am afraid you have selected wrong BT UART pins. Please refer Table 4 in CYBT-333032 datasheet https://www.cypress.com/file/464611/download.

Pad 20, 16, 17 & 18 are dedicated for HCI UART pins. For PUART, please select

Pad 15 (P4) as PUART_RXD,

Pad 14 (P31) as PUART_TXD,

Pad 2 (P3) as PUART_CTS,

Pad 19 (P30) as PUART_RTS.

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That Table and Pinout declaration / application of pads 14/15 is very confusing, but yours is correct ... Thanks.  

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