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CCS/TMS320F28035: gpio unexpectable behavior on TMS320F28035

VITALI HARUDKA
Intellectual 280 points
Part Number: TMS320F28035


Tool/software: Code Composer Studio

Hello. I get started with 28035 dsp processor and got a problem. While i use gpio i catch unexpectable behavior. While i run next code

GpioDataRegs.GPBDAT.bit.GPIO32 = (command >> 0) & 0b1;
GpioDataRegs.GPBDAT.bit.GPIO44 = (command >> 1) & 0b1;
GpioDataRegs.GPBDAT.bit.GPIO39 = (command >> 2) & 0b1;

second line was not assinged. If i run it step by step in debug mode all work right. Why it's happend and how to fix it?