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stmhal: Stop USB before entering DFU by software.

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This commit is contained in:
Damien George 2014-05-21 19:25:34 +01:00
parent 008343f640
commit 6d197740cf
3 changed files with 9 additions and 0 deletions
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1
stmhal/modpyb.c
View File

@ -65,6 +65,7 @@
/// \function bootloader() /// \function bootloader()
/// Activate the bootloader without BOOT* pins. /// Activate the bootloader without BOOT* pins.
STATIC NORETURN mp_obj_t pyb_bootloader(void) { STATIC NORETURN mp_obj_t pyb_bootloader(void) {
pyb_usb_dev_stop();
storage_flush(); storage_flush();
HAL_RCC_DeInit(); HAL_RCC_DeInit();

7
stmhal/usb.c
View File

@ -75,6 +75,13 @@ void pyb_usb_dev_init(usb_device_mode_t mode, usb_storage_medium_t medium) {
#endif #endif
} }
void pyb_usb_dev_stop(void) {
if (dev_is_enabled) {
USBD_Stop(&hUSBDDevice);
dev_is_enabled = 0;
}
}
bool usb_vcp_is_enabled(void) { bool usb_vcp_is_enabled(void) {
return dev_is_enabled; return dev_is_enabled;
} }

1
stmhal/usb.h
View File

@ -42,6 +42,7 @@ typedef enum {
} usb_storage_medium_t; } usb_storage_medium_t;
void pyb_usb_dev_init(usb_device_mode_t mode, usb_storage_medium_t medium); void pyb_usb_dev_init(usb_device_mode_t mode, usb_storage_medium_t medium);
void pyb_usb_dev_stop(void);
bool usb_vcp_is_enabled(void); bool usb_vcp_is_enabled(void);
bool usb_vcp_is_connected(void); bool usb_vcp_is_connected(void);
void usb_vcp_set_interrupt_char(int c); void usb_vcp_set_interrupt_char(int c);