Feedback: SPI example for FRDM-MKL27z has MOSI/MISO reversed in readme file

drojf — Sun, 03 Apr 2016 03:56:36 GMT

I'm not sure if this applies to the other board's examples as well. The SPI Examples have a readme file which tells you how to connect up the example. Unfortunately, the readme file is incorrect compared to the "pinmux.c" source files for SPI-0:

Readme file (incorrect) - says MISO is J2 pin 8, MOSI is J2 pin 10, for SPI0

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ INSTANCE0        CONNECTS TO         INSTANCE1 Pin Name   Board Location     Pin Name  Board Location MISO       J2 pin 8           MISO      J2 pin 20 MOSI       J2 pin 10          MOSI      J2 pin 18 SCK        J2 pin 12          SCK       J1 pin 11 PCS0       J2 pin 6           PCS0      J1 pin 9 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Pinmux file (correct) - says MISO is J2 pin 10, MOSI is J2 pin 8, for SPI0

    /* SPI0 */     PORT_SetPinMux(PORTC, 4U, kPORT_MuxAlt2); /* PCS0 J2-6  */     PORT_SetPinMux(PORTC, 5U, kPORT_MuxAlt2); /* SCK  J2-12 */     PORT_SetPinMux(PORTC, 6U, kPORT_MuxAlt2); /* MOSI J2-8  */     PORT_SetPinMux(PORTC, 7U, kPORT_MuxAlt2); /* MISO J2-10 */       /* SPI1 */     PORT_SetPinMux(PORTD, 4U, kPORT_MuxAlt2); /* PCS0 J1-9  */     PORT_SetPinMux(PORTD, 5U, kPORT_MuxAlt2); /* SCK  J1-11 */     PORT_SetPinMux(PORTD, 6U, kPORT_MuxAlt2); /* MOSI J2_18 */     PORT_SetPinMux(PORTD, 7U, kPORT_MuxAlt2); /* MISO J2-20 */

Connecting incorrectly doesn't appear to damage the board, but the SPI demo will fail.

I obtained the SDK using the custom builder to get a custom sdk for the mkl27z: "SDK_2.0_FRDM-KL27Z"

I wouldn't normally post this on the forum, but I can't find anywhere to give feedback on the SDK besides here.

Re: Feedback: SPI example for FRDM-MKL27z has MOSI/MISO reversed in readme file

Kan_Li — Wed, 06 Apr 2016 07:15:19 GMT

Hi Daniel,

Thanks for reporting this! I will forward this to our KSDK team.

Have a great day,
Kan

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topic Feedback: SPI example for FRDM-MKL27z has MOSI/MISO reversed in readme file in Kinetis Software Development Kit

Feedback: SPI example for FRDM-MKL27z has MOSI/MISO reversed in readme file

Re: Feedback: SPI example for FRDM-MKL27z has MOSI/MISO reversed in readme file