谁有AM335X GPIO2 的时钟配置函数void GPIO2Moduleclkconfig（void），急用！！！多谢！！！

lei li9

Intellectual 390 points

谁有AM335X GPIO2的时钟配置函数void GPIO2Moduleclkconfig（void）？或者告诉我下怎么从GPIO1的时钟中修改，startware里面没有，多谢！！！

8 年多前

0 Eggsy Pang 8 年多前

TI__Genius 9922 points

无论是GPIO123，配置都差不多，大概就是看GPIO在哪一个时钟源下面，一步一步打开就好，下面是GPIO1的配置例程

void GPIO1ModuleClkConfig(void)
{
/* Configuring L3 Interface Clocks. */

/* Writing to MODULEMODE field of CM_PER_L3_CLKCTRL register. */
HWREG(SOC_CM_PER_REGS + CM_PER_L3_CLKCTRL) |=
CM_PER_L3_CLKCTRL_MODULEMODE_ENABLE;

/* Waiting for MODULEMODE field to reflect the written value. */
while(CM_PER_L3_CLKCTRL_MODULEMODE_ENABLE !=
(HWREG(SOC_CM_PER_REGS + CM_PER_L3_CLKCTRL) &
CM_PER_L3_CLKCTRL_MODULEMODE));

/* Writing to MODULEMODE field of CM_PER_L3_INSTR_CLKCTRL register. */
HWREG(SOC_CM_PER_REGS + CM_PER_L3_INSTR_CLKCTRL) |=
CM_PER_L3_INSTR_CLKCTRL_MODULEMODE_ENABLE;

/* Waiting for MODULEMODE field to reflect the written value. */
while(CM_PER_L3_INSTR_CLKCTRL_MODULEMODE_ENABLE !=
(HWREG(SOC_CM_PER_REGS + CM_PER_L3_INSTR_CLKCTRL) &
CM_PER_L3_INSTR_CLKCTRL_MODULEMODE));

/* Writing to CLKTRCTRL field of CM_PER_L3_CLKSTCTRL register. */
HWREG(SOC_CM_PER_REGS + CM_PER_L3_CLKSTCTRL) |=
CM_PER_L3_CLKSTCTRL_CLKTRCTRL_SW_WKUP;

/* Waiting for CLKTRCTRL field to reflect the written value. */
while(CM_PER_L3_CLKSTCTRL_CLKTRCTRL_SW_WKUP !=
(HWREG(SOC_CM_PER_REGS + CM_PER_L3_CLKSTCTRL) &
CM_PER_L3_CLKSTCTRL_CLKTRCTRL));

/* Writing to CLKTRCTRL field of CM_PER_L3S_CLKSTCTRL register. */
HWREG(SOC_CM_PER_REGS + CM_PER_L3S_CLKSTCTRL) |=
CM_PER_L3S_CLKSTCTRL_CLKTRCTRL_SW_WKUP;

/*Waiting for CLKTRCTRL field to reflect the written value. */
while(CM_PER_L3S_CLKSTCTRL_CLKTRCTRL_SW_WKUP !=
(HWREG(SOC_CM_PER_REGS + CM_PER_L3S_CLKSTCTRL) &
CM_PER_L3S_CLKSTCTRL_CLKTRCTRL));

/* Writing to MODULEMODE field in CM_PER_OCPWP_CLKCTRL register. */
HWREG(SOC_CM_PER_REGS + CM_PER_OCPWP_CLKCTRL) |=
CM_PER_OCPWP_CLKCTRL_MODULEMODE_ENABLE;

/* Waiting for MODULEMODE field to reflect the written value. */
while(CM_PER_OCPWP_CLKCTRL_MODULEMODE_ENABLE !=
(HWREG(SOC_CM_PER_REGS + CM_PER_OCPWP_CLKCTRL) &
CM_PER_OCPWP_CLKCTRL_MODULEMODE));

/* Writing to CLKTRCTRL field of CM_PER_OCPWP_L3_CLKSTCTRL register. */
HWREG(SOC_CM_PER_REGS + CM_PER_OCPWP_L3_CLKSTCTRL) |=
CM_PER_OCPWP_L3_CLKSTCTRL_CLKTRCTRL_SW_WKUP;

/*Waiting for CLKTRCTRL field to reflect the written value. */
while(CM_PER_OCPWP_L3_CLKSTCTRL_CLKTRCTRL_SW_WKUP !=
(HWREG(SOC_CM_PER_REGS + CM_PER_OCPWP_L3_CLKSTCTRL) &
CM_PER_OCPWP_L3_CLKSTCTRL_CLKTRCTRL));

/* Checking fields for necessary values. */

/* Waiting for IDLEST field in CM_PER_L3_CLKCTRL register to be set to 0x0. */
while((CM_PER_L3_CLKCTRL_IDLEST_FUNC << CM_PER_L3_CLKCTRL_IDLEST_SHIFT)!=
(HWREG(SOC_CM_PER_REGS + CM_PER_L3_CLKCTRL) &
CM_PER_L3_CLKCTRL_IDLEST));

/*
** Waiting for IDLEST field in CM_PER_L3_INSTR_CLKCTRL register to attain the
** desired value.
*/
while((CM_PER_L3_INSTR_CLKCTRL_IDLEST_FUNC <<
CM_PER_L3_INSTR_CLKCTRL_IDLEST_SHIFT)!=
(HWREG(SOC_CM_PER_REGS + CM_PER_L3_INSTR_CLKCTRL) &
CM_PER_L3_INSTR_CLKCTRL_IDLEST));

/*
** Waiting for CLKACTIVITY_L3_GCLK field in CM_PER_L3_CLKSTCTRL register to
** attain the desired value.
*/
while(CM_PER_L3_CLKSTCTRL_CLKACTIVITY_L3_GCLK !=
(HWREG(SOC_CM_PER_REGS + CM_PER_L3_CLKSTCTRL) &
CM_PER_L3_CLKSTCTRL_CLKACTIVITY_L3_GCLK));

/*
** Waiting for STBYST bit in CM_PER_OCPWP_CLKCTRL register to attain
** the desired value.
*/
/* while((CM_PER_OCPWP_CLKCTRL_STBYST_FUNC <<
CM_PER_OCPWP_CLKCTRL_STBYST_SHIFT) !=
(HWREG(SOC_CM_PER_REGS + CM_PER_OCPWP_CLKCTRL) &
CM_PER_OCPWP_CLKCTRL_STBYST)); */

/*
** Waiting for IDLEST field in CM_PER_OCPWP_CLKCTRL register to attain the
** desired value.
*/
while((CM_PER_OCPWP_CLKCTRL_IDLEST_FUNC <<
CM_PER_OCPWP_CLKCTRL_IDLEST_SHIFT) !=
(HWREG(SOC_CM_PER_REGS + CM_PER_OCPWP_CLKCTRL) &
CM_PER_OCPWP_CLKCTRL_IDLEST));

/*
** Waiting for CLKACTIVITY_OCPWP_L3_GCLK field in CM_PER_OCPWP_L3_CLKSTCTRL
** register to attain the desired value.
*/
while(CM_PER_OCPWP_L3_CLKSTCTRL_CLKACTIVITY_OCPWP_L3_GCLK !=
(HWREG(SOC_CM_PER_REGS + CM_PER_OCPWP_L3_CLKSTCTRL) &
CM_PER_OCPWP_L3_CLKSTCTRL_CLKACTIVITY_OCPWP_L3_GCLK));

/*
** Waiting for CLKACTIVITY_L3S_GCLK field in CM_PER_L3S_CLKSTCTRL register
** to attain the desired value.
*/
while(CM_PER_L3S_CLKSTCTRL_CLKACTIVITY_L3S_GCLK !=
(HWREG(SOC_CM_PER_REGS + CM_PER_L3S_CLKSTCTRL) &
CM_PER_L3S_CLKSTCTRL_CLKACTIVITY_L3S_GCLK));

/* Configuring L4 Interface Clocks. */

/* Writing to MODULEMODE field of CM_PER_L4LS_CLKCTRL register. */
HWREG(SOC_CM_PER_REGS + CM_PER_L4LS_CLKCTRL) |=
CM_PER_L4LS_CLKCTRL_MODULEMODE_ENABLE;

/* Waiting for MODULEMODE field to reflect the written value. */
while(CM_PER_L4LS_CLKCTRL_MODULEMODE_ENABLE !=
(HWREG(SOC_CM_PER_REGS + CM_PER_L4LS_CLKCTRL) &
CM_PER_L4LS_CLKCTRL_MODULEMODE));

/* Writing to CLKTRCTRL field of CM_PER_L4LS_CLKSTCTRL register. */
HWREG(SOC_CM_PER_REGS + CM_PER_L4LS_CLKSTCTRL) |=
CM_PER_L4LS_CLKSTCTRL_CLKTRCTRL_SW_WKUP;

/* Waiting for CLKTRCTRL field to reflect the written value. */
while(CM_PER_L4LS_CLKSTCTRL_CLKTRCTRL_SW_WKUP !=
(HWREG(SOC_CM_PER_REGS + CM_PER_L4LS_CLKSTCTRL) &
CM_PER_L4LS_CLKSTCTRL_CLKTRCTRL));

/* Verifying if other configurations are correct. */

/*
** Waiting for IDLEST field in CM_PER_L4LS_CLKCTRL register to attain the
** desired value.
*/
while((CM_PER_L4LS_CLKCTRL_IDLEST_FUNC <<
CM_PER_L4LS_CLKCTRL_IDLEST_SHIFT) !=
(HWREG(SOC_CM_PER_REGS + CM_PER_L4LS_CLKCTRL) &
CM_PER_L4LS_CLKCTRL_IDLEST));

/*
** Waiting for CLKACTIVITY_L4LS_GCLK bit in CM_PER_L4LS_CLKSTCTRL register
** to attain the desired value.
*/
while(CM_PER_L4LS_CLKSTCTRL_CLKACTIVITY_L4LS_GCLK !=
(HWREG(SOC_CM_PER_REGS + CM_PER_L4LS_CLKSTCTRL) &
CM_PER_L4LS_CLKSTCTRL_CLKACTIVITY_L4LS_GCLK));

/*
** Waiting for CLKACTIVITY_OCPWP_L4_GCLK bit in CM_PER_OCPWP_L3_CLKSTCTRL
** register to attain the desired value.
*/
/* while(CM_PER_OCPWP_L3_CLKSTCTRL_CLKACTIVITY_OCPWP_L4_GCLK !=
(HWREG(SOC_CM_PER_REGS + CM_PER_OCPWP_L3_CLKSTCTRL) &
CM_PER_OCPWP_L3_CLKSTCTRL_CLKACTIVITY_OCPWP_L4_GCLK)); */

/* Performing configurations for GPIO1 instance. */

/* Writing to MODULEMODE field of CM_PER_GPIO1_CLKCTRL register. */
HWREG(SOC_CM_PER_REGS + CM_PER_GPIO1_CLKCTRL) |=
CM_PER_GPIO1_CLKCTRL_MODULEMODE_ENABLE;

/* Waiting for MODULEMODE field to reflect the written value. */
while(CM_PER_GPIO1_CLKCTRL_MODULEMODE_ENABLE !=
(HWREG(SOC_CM_PER_REGS + CM_PER_GPIO1_CLKCTRL) &
CM_PER_GPIO1_CLKCTRL_MODULEMODE));
/*
** Writing to OPTFCLKEN_GPIO_1_GDBCLK bit in CM_PER_GPIO1_CLKCTRL
** register.
*/
HWREG(SOC_CM_PER_REGS + CM_PER_GPIO1_CLKCTRL) |=
CM_PER_GPIO1_CLKCTRL_OPTFCLKEN_GPIO_1_GDBCLK;

/*
** Waiting for OPTFCLKEN_GPIO_1_GDBCLK bit to reflect the desired
** value.
*/
while(CM_PER_GPIO1_CLKCTRL_OPTFCLKEN_GPIO_1_GDBCLK !=
(HWREG(SOC_CM_PER_REGS + CM_PER_GPIO1_CLKCTRL) &
CM_PER_GPIO1_CLKCTRL_OPTFCLKEN_GPIO_1_GDBCLK));

/*
** Waiting for IDLEST field in CM_PER_GPIO1_CLKCTRL register to attain the
** desired value.
*/
while((CM_PER_GPIO1_CLKCTRL_IDLEST_FUNC <<
CM_PER_GPIO1_CLKCTRL_IDLEST_SHIFT) !=
(HWREG(SOC_CM_PER_REGS + CM_PER_GPIO1_CLKCTRL) &
CM_PER_GPIO1_CLKCTRL_IDLEST));

/*
** Waiting for CLKACTIVITY_GPIO_1_GDBCLK bit in CM_PER_L4LS_CLKSTCTRL
** register to attain desired value.
*/
while(CM_PER_L4LS_CLKSTCTRL_CLKACTIVITY_GPIO_1_GDBCLK !=
(HWREG(SOC_CM_PER_REGS + CM_PER_L4LS_CLKSTCTRL) &
CM_PER_L4LS_CLKSTCTRL_CLKACTIVITY_GPIO_1_GDBCLK));
}

0 lei li9 8 年多前回复 Eggsy Pang

Intellectual 390 points

对比GPIO1配置的，好像还是不行，希望搞过的人帮看看，多谢！

void GPIO2ModuleClkConfig(void)
{
/* Configuring L3 Interface Clocks. */

    /* Writing to MODULEMODE field of CM_PER_L3_CLKCTRL register. */
    HWREG(SOC_CM_PER_REGS + CM_PER_L3_CLKCTRL) |=
          CM_PER_L3_CLKCTRL_MODULEMODE_ENABLE;

    /* Waiting for MODULEMODE field to reflect the written value. */
    while(CM_PER_L3_CLKCTRL_MODULEMODE_ENABLE !=
          (HWREG(SOC_CM_PER_REGS + CM_PER_L3_CLKCTRL) &
           CM_PER_L3_CLKCTRL_MODULEMODE));

    /* Writing to MODULEMODE field of CM_PER_L3_INSTR_CLKCTRL register. */
    HWREG(SOC_CM_PER_REGS + CM_PER_L3_INSTR_CLKCTRL) |=
          CM_PER_L3_INSTR_CLKCTRL_MODULEMODE_ENABLE;

    /* Waiting for MODULEMODE field to reflect the written value. */
    while(CM_PER_L3_INSTR_CLKCTRL_MODULEMODE_ENABLE !=
          (HWREG(SOC_CM_PER_REGS + CM_PER_L3_INSTR_CLKCTRL) &
           CM_PER_L3_INSTR_CLKCTRL_MODULEMODE));

    /* Writing to CLKTRCTRL field of CM_PER_L3_CLKSTCTRL register. */
    HWREG(SOC_CM_PER_REGS + CM_PER_L3_CLKSTCTRL) |=
          CM_PER_L3_CLKSTCTRL_CLKTRCTRL_SW_WKUP;

    /* Waiting for CLKTRCTRL field to reflect the written value. */
    while(CM_PER_L3_CLKSTCTRL_CLKTRCTRL_SW_WKUP !=
          (HWREG(SOC_CM_PER_REGS + CM_PER_L3_CLKSTCTRL) &
           CM_PER_L3_CLKSTCTRL_CLKTRCTRL));

    /* Writing to CLKTRCTRL field of CM_PER_L3S_CLKSTCTRL register. */
    HWREG(SOC_CM_PER_REGS + CM_PER_L3S_CLKSTCTRL) |=
          CM_PER_L3S_CLKSTCTRL_CLKTRCTRL_SW_WKUP;

    /*Waiting for CLKTRCTRL field to reflect the written value. */
    while(CM_PER_L3S_CLKSTCTRL_CLKTRCTRL_SW_WKUP !=
          (HWREG(SOC_CM_PER_REGS + CM_PER_L3S_CLKSTCTRL) &
           CM_PER_L3S_CLKSTCTRL_CLKTRCTRL));

    /* Writing to MODULEMODE field in CM_PER_OCPWP_CLKCTRL register. */
    HWREG(SOC_CM_PER_REGS + CM_PER_OCPWP_CLKCTRL) |=
          CM_PER_OCPWP_CLKCTRL_MODULEMODE_ENABLE;

    /* Waiting for MODULEMODE field to reflect the written value. */
    while(CM_PER_OCPWP_CLKCTRL_MODULEMODE_ENABLE !=
          (HWREG(SOC_CM_PER_REGS + CM_PER_OCPWP_CLKCTRL) &
           CM_PER_OCPWP_CLKCTRL_MODULEMODE));

    /* Writing to CLKTRCTRL field of CM_PER_OCPWP_L3_CLKSTCTRL register. */
    HWREG(SOC_CM_PER_REGS + CM_PER_OCPWP_L3_CLKSTCTRL) |=
          CM_PER_OCPWP_L3_CLKSTCTRL_CLKTRCTRL_SW_WKUP;

    /*Waiting for CLKTRCTRL field to reflect the written value. */
    while(CM_PER_OCPWP_L3_CLKSTCTRL_CLKTRCTRL_SW_WKUP !=
          (HWREG(SOC_CM_PER_REGS + CM_PER_OCPWP_L3_CLKSTCTRL) &
           CM_PER_OCPWP_L3_CLKSTCTRL_CLKTRCTRL));

/* Checking fields for necessary values. */

    /* Waiting for IDLEST field in CM_PER_L3_CLKCTRL register to be set to 0x0. */
    while((CM_PER_L3_CLKCTRL_IDLEST_FUNC << CM_PER_L3_CLKCTRL_IDLEST_SHIFT)!=
          (HWREG(SOC_CM_PER_REGS + CM_PER_L3_CLKCTRL) &
           CM_PER_L3_CLKCTRL_IDLEST));

    /*
    ** Waiting for IDLEST field in CM_PER_L3_INSTR_CLKCTRL register to attain the
    ** desired value.
    */
    while((CM_PER_L3_INSTR_CLKCTRL_IDLEST_FUNC <<
           CM_PER_L3_INSTR_CLKCTRL_IDLEST_SHIFT)!=
          (HWREG(SOC_CM_PER_REGS + CM_PER_L3_INSTR_CLKCTRL) &
           CM_PER_L3_INSTR_CLKCTRL_IDLEST));

    /*
    ** Waiting for CLKACTIVITY_L3_GCLK field in CM_PER_L3_CLKSTCTRL register to
    ** attain the desired value.
    */
    while(CM_PER_L3_CLKSTCTRL_CLKACTIVITY_L3_GCLK !=
          (HWREG(SOC_CM_PER_REGS + CM_PER_L3_CLKSTCTRL) &
           CM_PER_L3_CLKSTCTRL_CLKACTIVITY_L3_GCLK));

    /*
    ** Waiting for STBYST bit in CM_PER_OCPWP_CLKCTRL register to attain
    ** the desired value.
    */
    /* while((CM_PER_OCPWP_CLKCTRL_STBYST_FUNC <<
           CM_PER_OCPWP_CLKCTRL_STBYST_SHIFT) !=
           (HWREG(SOC_CM_PER_REGS + CM_PER_OCPWP_CLKCTRL) &
            CM_PER_OCPWP_CLKCTRL_STBYST)); */

    /*
    ** Waiting for IDLEST field in CM_PER_OCPWP_CLKCTRL register to attain the
    ** desired value.
    */
    while((CM_PER_OCPWP_CLKCTRL_IDLEST_FUNC <<
           CM_PER_OCPWP_CLKCTRL_IDLEST_SHIFT) !=
           (HWREG(SOC_CM_PER_REGS + CM_PER_OCPWP_CLKCTRL) &
            CM_PER_OCPWP_CLKCTRL_IDLEST));

    /*
    ** Waiting for CLKACTIVITY_OCPWP_L3_GCLK field in CM_PER_OCPWP_L3_CLKSTCTRL
    ** register to attain the desired value.
    */
    while(CM_PER_OCPWP_L3_CLKSTCTRL_CLKACTIVITY_OCPWP_L3_GCLK !=
          (HWREG(SOC_CM_PER_REGS + CM_PER_OCPWP_L3_CLKSTCTRL) &
           CM_PER_OCPWP_L3_CLKSTCTRL_CLKACTIVITY_OCPWP_L3_GCLK));

    /*
    ** Waiting for CLKACTIVITY_L3S_GCLK field in CM_PER_L3S_CLKSTCTRL register
    ** to attain the desired value.
    */
    while(CM_PER_L3S_CLKSTCTRL_CLKACTIVITY_L3S_GCLK !=
          (HWREG(SOC_CM_PER_REGS + CM_PER_L3S_CLKSTCTRL) &
          CM_PER_L3S_CLKSTCTRL_CLKACTIVITY_L3S_GCLK));

/* Configuring L4 Interface Clocks. */

    /* Writing to MODULEMODE field of CM_PER_L4LS_CLKCTRL register. */
    HWREG(SOC_CM_PER_REGS + CM_PER_L4LS_CLKCTRL) |=
          CM_PER_L4LS_CLKCTRL_MODULEMODE_ENABLE;

    /* Waiting for MODULEMODE field to reflect the written value. */
    while(CM_PER_L4LS_CLKCTRL_MODULEMODE_ENABLE !=
          (HWREG(SOC_CM_PER_REGS + CM_PER_L4LS_CLKCTRL) &
           CM_PER_L4LS_CLKCTRL_MODULEMODE));

    /* Writing to CLKTRCTRL field of CM_PER_L4LS_CLKSTCTRL register. */
    HWREG(SOC_CM_PER_REGS + CM_PER_L4LS_CLKSTCTRL) |=
          CM_PER_L4LS_CLKSTCTRL_CLKTRCTRL_SW_WKUP;

    /* Waiting for CLKTRCTRL field to reflect the written value. */
    while(CM_PER_L4LS_CLKSTCTRL_CLKTRCTRL_SW_WKUP !=
          (HWREG(SOC_CM_PER_REGS + CM_PER_L4LS_CLKSTCTRL) &
           CM_PER_L4LS_CLKSTCTRL_CLKTRCTRL));

/* Verifying if other configurations are correct. */

    /*
    ** Waiting for IDLEST field in CM_PER_L4LS_CLKCTRL register to attain the
    ** desired value.
    */
    while((CM_PER_L4LS_CLKCTRL_IDLEST_FUNC <<
           CM_PER_L4LS_CLKCTRL_IDLEST_SHIFT) !=
          (HWREG(SOC_CM_PER_REGS + CM_PER_L4LS_CLKCTRL) &
           CM_PER_L4LS_CLKCTRL_IDLEST));

    /*
    ** Waiting for CLKACTIVITY_L4LS_GCLK bit in CM_PER_L4LS_CLKSTCTRL register
    ** to attain the desired value.
    */
    while(CM_PER_L4LS_CLKSTCTRL_CLKACTIVITY_L4LS_GCLK !=
          (HWREG(SOC_CM_PER_REGS + CM_PER_L4LS_CLKSTCTRL) &
           CM_PER_L4LS_CLKSTCTRL_CLKACTIVITY_L4LS_GCLK));

    /*
    ** Waiting for CLKACTIVITY_OCPWP_L4_GCLK bit in CM_PER_OCPWP_L3_CLKSTCTRL
    ** register to attain the desired value.
    */
    /* while(CM_PER_OCPWP_L3_CLKSTCTRL_CLKACTIVITY_OCPWP_L4_GCLK !=
          (HWREG(SOC_CM_PER_REGS + CM_PER_OCPWP_L3_CLKSTCTRL) &
          CM_PER_OCPWP_L3_CLKSTCTRL_CLKACTIVITY_OCPWP_L4_GCLK)); */

/* Performing configurations for GPIO2 instance. */

    /* Writing to MODULEMODE field of CM_PER_GPIO1_CLKCTRL register. */
    HWREG(SOC_CM_PER_REGS + CM_PER_GPIO2_CLKCTRL) |=
          CM_PER_GPIO2_CLKCTRL_MODULEMODE_ENABLE;

    /* Waiting for MODULEMODE field to reflect the written value. */
    while(CM_PER_GPIO2_CLKCTRL_MODULEMODE_ENABLE !=
          (HWREG(SOC_CM_PER_REGS + CM_PER_GPIO2_CLKCTRL) &
           CM_PER_GPIO2_CLKCTRL_MODULEMODE));
    /*
    ** Writing to OPTFCLKEN_GPIO_1_GDBCLK bit in CM_PER_GPIO1_CLKCTRL
    ** register.
    */
    HWREG(SOC_CM_PER_REGS + CM_PER_GPIO2_CLKCTRL) |=
          CM_PER_GPIO2_CLKCTRL_OPTFCLKEN_GPIO_2_GDBCLK;

    /*
    ** Waiting for OPTFCLKEN_GPIO_1_GDBCLK bit to reflect the desired
    ** value.
    */
    while(CM_PER_GPIO2_CLKCTRL_OPTFCLKEN_GPIO_2_GDBCLK !=
          (HWREG(SOC_CM_PER_REGS + CM_PER_GPIO2_CLKCTRL) &
           CM_PER_GPIO2_CLKCTRL_OPTFCLKEN_GPIO_2_GDBCLK));

    /*
    ** Waiting for IDLEST field in CM_PER_GPIO1_CLKCTRL register to attain the
    ** desired value.
    */
    while((CM_PER_GPIO2_CLKCTRL_IDLEST_FUNC <<
           CM_PER_GPIO2_CLKCTRL_IDLEST_SHIFT) !=
           (HWREG(SOC_CM_PER_REGS + CM_PER_GPIO2_CLKCTRL) &
            CM_PER_GPIO2_CLKCTRL_IDLEST));

    /*
    ** Waiting for CLKACTIVITY_GPIO_1_GDBCLK bit in CM_PER_L4LS_CLKSTCTRL
    ** register to attain desired value.
    */
    while(CM_PER_L4LS_CLKSTCTRL_CLKACTIVITY_GPIO_2_GDBCLK !=
          (HWREG(SOC_CM_PER_REGS + CM_PER_L4LS_CLKSTCTRL) &
           CM_PER_L4LS_CLKSTCTRL_CLKACTIVITY_GPIO_2_GDBCLK));
}

0 Jian Zhou 8 年多前回复 lei li9

TI__Mastermind 45260 points

首先GPIO1配置之后，是可以正常工作的么？

处理器

处理器论坛

谁有AM335X GPIO2 的时钟配置函数void GPIO2Moduleclkconfig（void），急用！！！多谢！！！