280049C芯片的GPIO配置代码和注释
时间: 2024-05-21 21:10:42 浏览: 13
以下是280049C芯片的GPIO配置代码和注释:
/* P0.0 to P0.7 are configured as GPIO outputs */
P0DIR |= 0xFF; // Set P0.0 to P0.7 as outputs
/* P1.0 to P1.7 are configured as GPIO inputs */
P1DIR &= 0x00; // Set P1.0 to P1.7 as inputs
/* P2.0 is configured as a GPIO output */
P2DIR |= 0x01; // Set P2.0 as an output
/* P3.0 to P3.3 are configured as GPIO inputs */
P3DIR &= 0xF0; // Set P3.0 to P3.3 as inputs
/* P4.0 is configured as a GPIO output */
P4DIR |= 0x01; // Set P4.0 as an output
/* P5.0 to P5.7 are configured as GPIO inputs */
P5DIR &= 0x00; // Set P5.0 to P5.7 as inputs
/* P6.0 to P6.7 are configured as GPIO outputs */
P6DIR |= 0xFF; // Set P6.0 to P6.7 as outputs
/* P7.0 to P7.7 are configured as GPIO inputs */
P7DIR &= 0x00; // Set P7.0 to P7.7 as inputs
/* P8.0 to P8.7 are configured as GPIO outputs */
P8DIR |= 0xFF; // Set P8.0 to P8.7 as outputs
/* P9.0 to P9.7 are configured as GPIO inputs */
P9DIR &= 0x00; // Set P9.0 to P9.7 as inputs
/* P10.0 to P10.7 are configured as GPIO outputs */
P10DIR |= 0xFF; // Set P10.0 to P10.7 as outputs
/* P11.0 to P11.7 are configured as GPIO inputs */
P11DIR &= 0x00; // Set P11.0 to P11.7 as inputs
/* P12.0 to P12.7 are configured as GPIO outputs */
P12DIR |= 0xFF; // Set P12.0 to P12.7 as outputs
/* P13.0 to P13.7 are configured as GPIO inputs */
P13DIR &= 0x00; // Set P13.0 to P13.7 as inputs
/* P14.0 to P14.7 are configured as GPIO outputs */
P14DIR |= 0xFF; // Set P14.0 to P14.7 as outputs
/* P15.0 to P15.7 are configured as GPIO inputs */
P15DIR &= 0x00; // Set P15.0 to P15.7 as inputs
/* P16.0 to P16.7 are configured as GPIO outputs */
P16DIR |= 0xFF; // Set P16.0 to P16.7 as outputs
/* P17.0 to P17.7 are configured as GPIO inputs */
P17DIR &= 0x00; // Set P17.0 to P17.7 as inputs
/* P18.0 to P18.7 are configured as GPIO outputs */
P18DIR |= 0xFF; // Set P18.0 to P18.7 as outputs
/* P19.0 to P19.7 are configured as GPIO inputs */
P19DIR &= 0x00; // Set P19.0 to P19.7 as inputs
/* P20.0 to P20.7 are configured as GPIO outputs */
P20DIR |= 0xFF; // Set P20.0 to P20.7 as outputs
/* P21.0 to P21.7 are configured as GPIO inputs */
P21DIR &= 0x00; // Set P21.0 to P21.7 as inputs
/* P22.0 to P22.7 are configured as GPIO outputs */
P22DIR |= 0xFF; // Set P22.0 to P22.7 as outputs
/* P23.0 to P23.7 are configured as GPIO inputs */
P23DIR &= 0x00; // Set P23.0 to P23.7 as inputs
/* P24.0 to P24.7 are configured as GPIO outputs */
P24DIR |= 0xFF; // Set P24.0 to P24.7 as outputs
/* P25.0 to P25.7 are configured as GPIO inputs */
P25DIR &= 0x00; // Set P25.0 to P25.7 as inputs
/* P26.0 to P26.7 are configured as GPIO outputs */
P26DIR |= 0xFF; // Set P26.0 to P26.7 as outputs
/* P27.0 to P27.7 are configured as GPIO inputs */
P27DIR &= 0x00; // Set P27.0 to P27.7 as inputs
/* P28.0 to P28.7 are configured as GPIO outputs */
P28DIR |= 0xFF; // Set P28.0 to P28.7 as outputs
/* P29.0 to P29.7 are configured as GPIO inputs */
P29DIR &= 0x00; // Set P29.0 to P29.7 as inputs