diff options
| author | sakumisu <[email protected]> | 2023-05-08 20:21:59 +0800 |
|---|---|---|
| committer | sakumisu <[email protected]> | 2023-05-08 20:22:04 +0800 |
| commit | 0c218441661764107799b732d977384b22c8ca84 (patch) | |
| tree | 51cc0df36b366c77b98b73639ef81f29d9fe7e2c | |
| parent | f446a7e95bb3d1e3544890a39fba4f41066654e9 (diff) | |
prevent variables being optimised
| -rw-r--r-- | port/dwc2/usb_dc_dwc2.c | 6 | ||||
| -rw-r--r-- | port/dwc2/usb_hc_dwc2.c | 6 |
2 files changed, 6 insertions, 6 deletions
diff --git a/port/dwc2/usb_dc_dwc2.c b/port/dwc2/usb_dc_dwc2.c index e7d3feab..f05207c4 100644 --- a/port/dwc2/usb_dc_dwc2.c +++ b/port/dwc2/usb_dc_dwc2.c @@ -191,7 +191,7 @@ USB_NOCACHE_RAM_SECTION struct dwc2_udc { static inline int dwc2_reset(void) { - uint32_t count = 0U; + volatile uint32_t count = 0U; /* Wait for AHB master IDLE state. */ do { @@ -252,7 +252,7 @@ static inline void dwc2_set_mode(uint8_t mode) static inline int dwc2_flush_rxfifo(void) { - uint32_t count = 0; + volatile uint32_t count = 0; USB_OTG_GLB->GRSTCTL = USB_OTG_GRSTCTL_RXFFLSH; @@ -267,7 +267,7 @@ static inline int dwc2_flush_rxfifo(void) static inline int dwc2_flush_txfifo(uint32_t num) { - uint32_t count = 0U; + volatile uint32_t count = 0U; USB_OTG_GLB->GRSTCTL = (USB_OTG_GRSTCTL_TXFFLSH | (num << 6)); diff --git a/port/dwc2/usb_hc_dwc2.c b/port/dwc2/usb_hc_dwc2.c index 1f18771f..7c51eaa7 100644 --- a/port/dwc2/usb_hc_dwc2.c +++ b/port/dwc2/usb_hc_dwc2.c @@ -66,7 +66,7 @@ struct dwc2_hcd { static inline int dwc2_reset(void) { - uint32_t count = 0U; + volatile uint32_t count = 0U; /* Wait for AHB master IDLE state. */ do { @@ -127,7 +127,7 @@ static inline void dwc2_set_mode(uint8_t mode) static inline int dwc2_flush_rxfifo(void) { - uint32_t count = 0; + volatile uint32_t count = 0; USB_OTG_GLB->GRSTCTL = USB_OTG_GRSTCTL_RXFFLSH; @@ -142,7 +142,7 @@ static inline int dwc2_flush_rxfifo(void) static inline int dwc2_flush_txfifo(uint32_t num) { - uint32_t count = 0U; + volatile uint32_t count = 0U; USB_OTG_GLB->GRSTCTL = (USB_OTG_GRSTCTL_TXFFLSH | (num << 6)); |