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-rw-r--r--src/portable/st/synopsys/dcd_synopsys.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/portable/st/synopsys/dcd_synopsys.c b/src/portable/st/synopsys/dcd_synopsys.c
index 7eb63e52f..03c33c598 100644
--- a/src/portable/st/synopsys/dcd_synopsys.c
+++ b/src/portable/st/synopsys/dcd_synopsys.c
@@ -231,6 +231,7 @@ static void bus_reset(uint8_t rhport)
}
// Set turn-around timeout according to link speed
+extern uint32_t SystemCoreClock;
static void set_turnaround(USB_OTG_GlobalTypeDef * usb_otg, tusb_speed_t speed)
{
usb_otg->GUSBCFG &= ~USB_OTG_GUSBCFG_TRDT;
@@ -243,7 +244,6 @@ static void set_turnaround(USB_OTG_GlobalTypeDef * usb_otg, tusb_speed_t speed)
else
{
// Turnaround timeout depends on the MCU clock
- extern uint32_t SystemCoreClock;
uint32_t turnaround;
if ( SystemCoreClock >= 32000000U )