Hi NXP: Im try to communicate by SPI1 interface and Clock/MOSI pins can output what I need data, but CS pin always high.Could you please help me? where is wrong setting beween pins and SPI driver,thanks. environment description: MCU:S32K312/100pin S32DS Product:3.5.0.202207261815 RTD S32KXX:RTD5.0.0.202407261948 SW32K3_FreeRTOS_11.1.0_5.0.0_CD1_D2409_Example Project attachment description: 20250407-SPI1_CS_issue.png 20250407-FreeRTOS_S32K312_SPI_test.7z BR Nelson
I found issue about our board which has pull-up resister 4.7K located at CS pin, and I will inform hardware engineering for discussing this issue. many thanks again for Robin_Shen.
Hi Nelson,
I downloaded your program to S32K312EVB-Q172, and I can observe that the chip select signal is pulled low at PTB17 pin.
Since your S32K312 package is 100 HDQFP, please check whether PTB17 pin63 is correctly connected to the logic analyzer.
Best Regards,
Robin
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Hi NXP:
Im try to communicate by SPI1 interface and Clock/MOSI pins
can output what I need data, but CS pin always high.Could you
please help me? where is wrong setting beween pins and SPI driver,thanks.
environment description:
MCU:S32K312/100pin
S32DS Product:3.5.0.202207261815
RTD S32KXX:RTD5.0.0.202407261948
SW32K3_FreeRTOS_11.1.0_5.0.0_CD1_D2409_Example Project
attachment description:
20250407-SPI1_CS_issue.png
20250407-FreeRTOS_S32K312_SPI_test.7z
BR
Nelson