void
ao_boot_chain(uint32_t *base);
-void
+/* Return true to switch to application */
+int
ao_boot_check_pin(void);
/* Return true to switch to application (if present) */
#include <ao_boot.h>
#include <ao_exti.h>
-void
+int
ao_boot_check_pin(void)
{
uint16_t v;
- /* Enable power interface clock */
-// stm_rcc.apb1enr |= (1 << STM_RCC_APB1ENR_PWREN);
-
/* Enable the input pin */
ao_enable_input(AO_BOOT_APPLICATION_GPIO, AO_BOOT_APPLICATION_PIN,
AO_BOOT_APPLICATION_MODE);
/* Reset the chip to turn off the port and the power interface clock */
ao_gpio_set_mode(AO_BOOT_APPLICATION_GPIO, AO_BOOT_APPLICATION_PIN, 0);
ao_disable_port(AO_BOOT_APPLICATION_GPIO);
-// stm_rcc.apb1enr &= ~(1 << STM_RCC_APB1ENR_PWREN);
- if (v == AO_BOOT_APPLICATION_VALUE)
- ao_boot_chain(AO_BOOT_APPLICATION_BASE);
+ return v == AO_BOOT_APPLICATION_VALUE;
}
#ifdef AO_BOOT_CHAIN
if (ao_boot_check_chain()) {
#ifdef AO_BOOT_PIN
- ao_boot_check_pin();
+ if (ao_boot_check_pin())
#endif
+ {
+ ao_boot_chain(AO_BOOT_APPLICATION_BASE);
+ }
}
#endif
#if RELOCATE_INTERRUPT
#include <ao_boot.h>
#include <ao_exti.h>
-void
+int
ao_boot_check_pin(void)
{
uint16_t v;
ao_gpio_set_mode(&AO_BOOT_APPLICATION_GPIO, AO_BOOT_APPLICATION_PIN, 0);
ao_disable_port(&AO_BOOT_APPLICATION_GPIO);
stm_rcc.apb1enr &= ~(1 << STM_RCC_APB1ENR_PWREN);
- if (v == AO_BOOT_APPLICATION_VALUE)
- ao_boot_chain(AO_BOOT_APPLICATION_BASE);
+ return v == AO_BOOT_APPLICATION_VALUE;
}
#ifdef AO_BOOT_CHAIN
if (ao_boot_check_chain()) {
#ifdef AO_BOOT_PIN
- ao_boot_check_pin();
+ if (ao_boot_check_pin())
#endif
+ {
+ ao_boot_chain(AO_BOOT_APPLICATION_BASE);
+ }
}
#endif
/* Set interrupt vector table offset */
#include <ao_boot.h>
#include <ao_exti.h>
-void
+int
ao_boot_check_pin(void)
{
uint16_t v;
ao_gpio_set_mode(&AO_BOOT_APPLICATION_GPIO, AO_BOOT_APPLICATION_PIN, 0);
ao_disable_port(&AO_BOOT_APPLICATION_GPIO);
stm_rcc.apb1enr &= ~(1 << STM_RCC_APB1ENR_PWREN);
- if (v == AO_BOOT_APPLICATION_VALUE)
- ao_boot_chain(AO_BOOT_APPLICATION_BASE);
+ return v == AO_BOOT_APPLICATION_VALUE;
}
#if AO_BOOT_CHAIN
if (ao_boot_check_chain()) {
#if AO_BOOT_PIN
- ao_boot_check_pin();
+ if (ao_boot_check_pin())
#endif
+ {
+ ao_boot_chain(AO_BOOT_APPLICATION_BASE);
+ }
}
#endif
/* Turn on syscfg */