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PROCESSOR-SDK-AM64X: OTP Keywriter User Guide: Build the example

Christopher Holland
Intellectual 310 points

Part Number: PROCESSOR-SDK-AM64X

Hi,

I am getting the following error when trying to build the example. (Section 2.1.4 in the guide)

gCacheConfig C:\ti\mcu_plus_sdk_am64x_09_01_00_41/source/kernel/nortos/lib/nortos.am64x.r5f.ti-arm-clang.debug.lib<CacheP_armv7r.obj>

Thank you,

  • +1
    TI__Guru* 80351 points

    Hi Christopher,

    The OTP Keywriter v9.0 is incompatible with the out of the box MCU+ SDK v9.1. Please use the MCU+ SDK v9.0 as mentioned in the guide.

    Regards,

    Prashant

  • 0 in reply to Prashant Shivhare
    Intellectual 310 points

    Hi Prashant,

    Just FYI. It does mention getting the latest SDK in the document.

    I had already installed the latest SDK and I did not see any mention of the incompatibility.

    Thanks,

  • 0 in reply to Christopher Holland
    TI__Guru* 80351 points

    Hi Christopher,

    Sorry for the inconvenience and thank you for the reporting the inconsistency. I will have the team notified about this.

    About the incompatibility of OTP Keywriter v9.0 with MCU+ SDK v9.1, it's not a strict one. It's just that something changed in MCU+ SDK v9.1 which results in build failure of the OTP Keywriter v9.0

    You can do the following changes in the OTP Keywriter v9.0 to use it with MCU+ SDK v9.1

    diff --git a/sbl_keywriter/am64x-evm/r5fss0-0_nortos/board.c b/sbl_keywriter/am64x-evm/r5fss0-0_nortos/board.c
index 55e0cd5..274c5c0 100644
--- a/sbl_keywriter/am64x-evm/r5fss0-0_nortos/board.c
+++ b/sbl_keywriter/am64x-evm/r5fss0-0_nortos/board.c
@@ -33,6 +33,8 @@
 #include <board/ioexp/ioexp_tca6424.h>
 #include <kernel/dpl/CacheP.h>

+const CacheP_Config gCacheConfig = {};
+
 /* TP52 VPP CORE on AM64X EVM */
 #define EFUSE_VPP_PIN (15U)
 #define EFUSE_VPP_PIN_LED (16U) // test LED

    Regards,

    Prashant