• Locked Locked
  • Replies 1 reply
  • Subscribers 98 subscribers
  • Views 128 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

Muxing of SPI0 and Boot pins

Priya Tiwari
Intellectual 345 points
Other Parts Discussed in Thread: OMAP-L137

I am working on OMAP-L137, in this SPI0 is muxed with SPI0_ENA/UART0_CTS/EQEP0A/GPIO5[3]/BOOT[3] similarly other 

pins of SPI0 are also muxed with other pins of other peripheral module. We are using OMAP-L137 EVM board, in this BOOT[3]

is used to select Boot mode which can be configured through SW2 switch which  determine the source for processor booting.

After booting is completed, can i change this switch setting  i.e. BOOT[3] to SPI0_ENA so that i can read & write to SPI Flash?

  • TI__Genius 9490 points

    Yes, you should be able to change the pinmux register values and use it for SPI afterwards.  One thing to be caution that I would give is in case you have added an external Pull resistor make sure it is not too strong of a pull so when the SPI drives the pin in SPI functional mode it is able to drive it properly.

    regards,

    miguel