AWR2243: The usage of GPIO[0]

KenF

Part Number: AWR2243

Hello Vivek,

In the previous thread, you answered " We recommend connecting the GPIO [0] for debug purpose.".
Can you please let me know what kind of information can be obtained specifically and how to use it?

Best regards,
Ken

over 4 years ago

+1 Ishita Kochar over 4 years ago

TI__Mastermind 31680 points

Hello Ken,

Let me give some background on this. The GPIO[0], [1], [2] are not programmable by the user in AWR2243 since this a front end only device. It can either be used by SPI or I2C Interface. In I2C mode, the function of the GPIO is only to set the address. But in SPI mode, the GPIO[0] is used for debug purpose to send failure logs incase the SPI interface has issues.

For your reference, please refer to the below link as well which might clarify things further :

(+) AWR2243: 4 pcs AWR2243 cascaded, FPGA use one I2C and one SPI to connect 4 PCS AWR2243? 4 PCS AWR2243 have different I2C device address(GPIO set), SPI CLK/MOSI/MISO of 4 pcs 2243 connect together. - Sensors forum - Sensors - TI E2E support forums

Regards,

Ishita