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PSOC4 SPI Using | Cypress Semiconductor


Summary: 2 Replies, Latest post by TUNA(hsyn) on 29 Jun 2016 12:02 AM PDT
Verified Answers: 1
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huseyin.tuna_1619931's picture
9 posts

Hi All! 

I am using the CY8C4126AZI-M445 as MCU. I will control 31 capacitive sensors and I will drive to led display also. So, I have to optimize pin using.

For this reason, I plan to use HC595 ICs to drive display via SPI. But I won’t use MISO pin in our project and I don’t want to assign any pin for MISO of SPI. When I try don’t assign, after build operation, complier assign automatically. What can I do ? PSOC4 SCB Module(Ver 3.10) has not bidirectional option for SPI. Could you guide to me what can I do use SPI module with only 3 pins ( MOSI,SS,SCK) ? 

Thanks in advance

KeerthiRocks's picture
Cypress Employee
77 posts

Hi Tuna,


The compoent has an option to remove the MISO pin in the component configuration.

You can use this option if MISO is not required.





huseyin.tuna_1619931's picture
9 posts

Hi Keerthi,

Thank you for this valuable and helpful comments !! It is a solution that i was looking  .

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