Dear Sir,
The Macro just use USB_BOOT, no any change is made, I just compile this project and down load it into internal SRAM by control center.
/*
## Cypress FX3 Boot Firmware Example Source file (main.c)
## ===========================
##
## Copyright Cypress Semiconductor Corporation, 2011-2012,
## All Rights Reserved
## UNPUBLISHED, LICENSED SOFTWARE.
##
## CONFIDENTIAL AND PROPRIETARY INFORMATION
## WHICH IS THE PROPERTY OF CYPRESS.
##
## Use of this file is governed
## by the license agreement included in the file
##
## <install>/license/license.txt
##
## where <install> is the Cypress software
## installation root directory path.
##
## ===========================
*/
#include "cyfx3usb.h"
#include "cyfx3device.h"
#include "cyfx3utils.h"
#include "cyfx3gpio.h"
/* GPIO to be used for testing. */
#define FX3_GPIO_TEST_OUT (50)
#define FX3_GPIO_TO_LOFLAG(gpio) (1 << (gpio))
#define FX3_GPIO_TO_HIFLAG(gpio) (1 << ((gpio) - 32))
/* Enable this for booting off the USB */
#define USB_BOOT
#ifdef USB_BOOT
extern void
myUsbBoot (
void);
extern uint8_t glCheckForDisconnect;
extern uint8_t glInCompliance;
#endif
/* Enable this for booting off the SPI Flash */
/* #define SPI_BOOT */
#ifdef SPI_BOOT
extern CyFx3BootErrorCode_t initSpi (void);
extern CyBool_t bootFromSpi (void);
#endif
/* Enable this for booting off the I2C EEPROM. */
/* #define I2C_BOOT */
#ifdef I2C_BOOT
extern CyBool_t
MyI2cBoot (
void);
#endif
/****************************************************************************
* main:
****************************************************************************/
int
main (
void)
{
CyFx3BootErrorCode_t status;
CyFx3BootIoMatrixConfig_t ioCfg;
CyFx3BootGpioSimpleConfig_t gpioCfg;
/* HW and SW initialization code */
CyFx3BootDeviceInit (CyTrue);
ioCfg.isDQ32Bit = CyFalse;
ioCfg.useUart = CyFalse;
ioCfg.useI2C = CyTrue;
ioCfg.useI2S = CyFalse;
ioCfg.useSpi = CyTrue;
ioCfg.gpioSimpleEn[0] = 0;
ioCfg.gpioSimpleEn[1] = 0;
status = CyFx3BootDeviceConfigureIOMatrix (&ioCfg);
if (status != CY_FX3_BOOT_SUCCESS)
{
CyFx3BootDeviceReset ();
return status;
}
#ifdef SPI_BOOT
/* Enable this for booting off the SPI */
status = initSpi ();
if(status != CY_FX3_BOOT_SUCCESS)
{
return status;
}
bootFromSpi ();
#endif
#ifdef I2C_BOOT
/* Try booting from I2C and fall back to USB if it fails. */
MyI2cBoot ();
#endif
/* Initialize the GPIO module. Force GPIO[50] low. Then request to retain GPIO state across boot. */
CyFx3BootGpioOverride (FX3_GPIO_TEST_OUT);
CyFx3BootGpioInit ();
gpioCfg.outValue = CyFalse;
gpioCfg.driveLowEn = CyTrue;
gpioCfg.driveHighEn = CyTrue;
gpioCfg.inputEn = CyFalse;
gpioCfg.intrMode = CY_FX3_BOOT_GPIO_NO_INTR;
status = CyFx3BootGpioSetSimpleConfig (FX3_GPIO_TEST_OUT, &gpioCfg);
if (status != CY_FX3_BOOT_SUCCESS)
return status;
CyFx3BootRetainGpioState ();
#ifdef USB_BOOT
/* Enable this for booting off the USB */
myUsbBoot ();
#endif
while (1)
{
#ifdef USB_BOOT
/* Enable this piece of code when using the USB module.
* Call the new wrapper function which handles all state changes as required.
*/
CyFx3BootUsbHandleEvents ();
#endif
/* If there are any other tasks that this application needs to perform, they can be called from here. */
}
return 0;
}
