djsundog/circuitpython
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Update stm32 usb.c

Browse Source
This commit is contained in:
Hierophect 2019-12-12 12:47:40 -05:00
parent 1244125bdc
commit 885a1415d0
1 changed files with 16 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
ports/stm32f4/supervisor/usb.c
View File

@ -32,6 +32,8 @@
#include "lib/mp-readline/readline.h"
#include "stm32f4xx_hal.h"
#include "py/mpconfig.h"
#include "common-hal/microcontroller/Pin.h"
void init_usb_hardware(void) {
@ -79,7 +81,21 @@ void init_usb_hardware(void) {
HAL_GPIO_Init(GPIOG, &GPIO_InitStruct);
never_reset_pin_number(0, 8);
#endif
#ifdef BOARD_NO_VBUS
disable_usb_vbus();
#endif
/* Peripheral clock enable */
__HAL_RCC_USB_OTG_FS_CLK_ENABLE();
}
STATIC void disable_usb_vbus(void) {
#ifdef USB_OTG_GCCFG_VBDEN
USB_OTG_FS->GCCFG &= ~USB_OTG_GCCFG_VBDEN;
#else
USB_OTG_FS->GCCFG |= USB_OTG_GCCFG_NOVBUSSENS;
USB_OTG_FS->GCCFG &= ~USB_OTG_GCCFG_VBUSBSEN;
USB_OTG_FS->GCCFG &= ~USB_OTG_GCCFG_VBUSASEN;
#endif
}