Zynq Boot Configuration

Zynq processing subsystem boot configuration. More...

Functions
void	sd_zynq_clk_enable (uint8_t enable)
	Zynq Clock Enable Enables the main clock source for the Zynq APU. More...
void	sd_zynq_jtag_enable (uint8_t enable)
	Zynq JTAG Enable Enables the JTAG interface for programming the PS or PL. More...
void	sd_wl_clk_enable (uint8_t enable)
	Wireless Clock Enable Enable the wireless module 32kHz clock source. More...
void	sd_bt_enable (uint8_t enable)
	Bluetooth Enable Enable the Bluetooth interface on the wireless module. More...
void	sd_zynq_boot_config (enum sd_zynq_boot boot)
	Zynq Boot Config Outputs boot select pins to zynq for desired boot media source. More...
void	sd_zynq_reset (void)
	Zynq Reset Reset the Zynq APU. More...
void	sd_zynq_disable (void)
	Disable Zynq Power Disable the Zynq power rails by setting the enable pin low. More...
void	sd_zynq_enable (void)
	Enable Zynq Power Enable the Zynq power rails by setting the enable pin high. More...

Detailed Description

Zynq processing subsystem boot configuration.

Function Documentation

sd_bt_enable()

void sd_bt_enable

(

uint8_t

enable

)

#include <Src/sd_platform.c>

Bluetooth Enable Enable the Bluetooth interface on the wireless module.

Parameters

enable

State to set for Bluetooth interface

Return values

None

{
    GPIO_PinState en = enable ? GPIO_PIN_SET : GPIO_PIN_RESET;
    
    HAL_GPIO_WritePin(WL18xx_BT_EN_GPIO_Port, 
              WL18xx_BT_EN_Pin, en);
}

sd_wl_clk_enable()

void sd_wl_clk_enable

(

uint8_t

enable

)

#include <Src/sd_platform.c>

Wireless Clock Enable Enable the wireless module 32kHz clock source.

Parameters

enable

State to set for clock

Return values

None

{
    GPIO_PinState en = enable ? GPIO_PIN_SET : GPIO_PIN_RESET;

    HAL_GPIO_WritePin(WL_32KHZ_CLK_EN_GPIO_Port, 
              WL_32KHZ_CLK_EN_Pin, en);
}

sd_zynq_boot_config()

void sd_zynq_boot_config

(

enum sd_zynq_boot

boot

)

#include <Src/sd_platform.c>

Zynq Boot Config Outputs boot select pins to zynq for desired boot media source.

Parameters

boot	Value defining boot pin outputs

Return values

None

{
    GPIO_PinState mio4_out, mio5_out;
  
    switch (boot) {
    case SD_ZYNQ_BOOT_JTAG:
        mio4_out = GPIO_PIN_RESET;      /* 0 */
        mio5_out = GPIO_PIN_RESET;      /* 0 */
        break;
    
    case SD_ZYNQ_BOOT_NAND:
        mio4_out = GPIO_PIN_SET;    /* 1 */
        mio5_out = GPIO_PIN_RESET;      /* 0 */
        break;
    
    case SD_ZYNQ_BOOT_QSPI:
        mio4_out = GPIO_PIN_RESET;      /* 0 */
        mio5_out = GPIO_PIN_SET;    /* 1 */
        break;
    
    case SD_ZYNQ_BOOT_SD:
        mio4_out = GPIO_PIN_SET;    /* 1 */
        mio5_out = GPIO_PIN_SET;    /* 1 */
        break;
    }
 
    /* Write boot select pins */
    HAL_GPIO_WritePin(MIO4_BOOT_SELECT_GPIO_Port,
              MIO4_BOOT_SELECT_Pin,
              mio4_out);
    
    HAL_GPIO_WritePin(MIO5_BOOT_SELECT_GPIO_Port, 
              MIO5_BOOT_SELECT_Pin,
              mio5_out);
}

sd_zynq_clk_enable()

void sd_zynq_clk_enable

(

uint8_t

enable

)

#include <Src/sd_platform.c>

Zynq Clock Enable Enables the main clock source for the Zynq APU.

Parameters

enable

State to set for clock

Return values

None

{
    GPIO_PinState en = enable ? GPIO_PIN_SET : GPIO_PIN_RESET;
    
    HAL_GPIO_WritePin(ZYNQ_CLK_EN_GPIO_Port, 
              ZYNQ_CLK_EN_Pin, en);

}

sd_zynq_disable()

void sd_zynq_disable

(

void

)

#include <Src/sd_platform.c>

Disable Zynq Power Disable the Zynq power rails by setting the enable pin low.

Parameters

butt	Button used to trigger this function

Return values

None

{
    HAL_GPIO_WritePin(ZYNQ_POWER_EN_GPIO_Port,
                ZYNQ_POWER_EN_Pin, GPIO_PIN_RESET);
    sd_led_rapid(&app_led);
}

sd_zynq_enable()

void sd_zynq_enable

(

void

)

#include <Src/sd_platform.c>

Enable Zynq Power Enable the Zynq power rails by setting the enable pin high.

Parameters

butt	Button used to trigger this function

Return values

None

{
    HAL_GPIO_WritePin(ZYNQ_POWER_EN_GPIO_Port,
                ZYNQ_POWER_EN_Pin, GPIO_PIN_SET);
                
    sd_led_reset(&app_led);
}

sd_zynq_jtag_enable()

void sd_zynq_jtag_enable

(

uint8_t

enable

)

#include <Src/sd_platform.c>

Zynq JTAG Enable Enables the JTAG interface for programming the PS or PL.

Parameters

enable

State to set for JTAG interface

Return values

None

{
    GPIO_PinState en = enable ? GPIO_PIN_SET : GPIO_PIN_RESET;

    HAL_GPIO_WritePin(ZYNQ_JTAG_NRST_GPIO_Port, 
              ZYNQ_JTAG_NRST_Pin, en);
}

sd_zynq_reset()

void sd_zynq_reset

(

void

)

#include <Src/sd_platform.c>

Zynq Reset Reset the Zynq APU.

Parameters

None

Return values

None

{
    sd_zynq_disable();
    
    /* A Short wait */
    HAL_Delay(100);
    
    sd_zynq_enable();
}