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This directory contains the support code for the EK-TM4C123GXL board (TivaC LauchPad). The sub-directories contain code that is specific to the particular ARM toolchains, such as ARM (MDK-ARM), GCC, and IAR. CMSIS-Compliant Device Files ============================ The code also includes the CMSIS-compliant interface to the TM4C123GH6PM MCU files: TM4C123GH6PM.h system_TM4C123GH6PM.h system_TM4C123GH6PM.c arm\startup_TM4C123GH6PM.s gcc\startup_TM4C123GH6PM.c iar\startup_TM4C123GH6PM.s Adjusting the CPU Clock Speed ----------------------------- The current setting is to run at 50MHz from PLL, but the CPU clock speed can be modified by editing the file system_TM4C123GH6PM.c.