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| author | Kevin O'Connor <kevin@koconnor.net> | 2019-10-13 14:24:50 -0400 |
|---|---|---|
| committer | Kevin O'Connor <kevin@koconnor.net> | 2019-10-13 14:33:23 -0400 |
| commit | 1e8582e3f6cb13d85f06c740d7f79824c15a88be (patch) | |
| tree | 2254827e1883ac296ca25ab76512262d7d2dd1de /src/stm32/usbfs.c | |
| parent | 789659599cc711d9b45adf73dbd0cd66731a045c (diff) | |
| download | kutter-1e8582e3f6cb13d85f06c740d7f79824c15a88be.tar.gz kutter-1e8582e3f6cb13d85f06c740d7f79824c15a88be.tar.xz kutter-1e8582e3f6cb13d85f06c740d7f79824c15a88be.zip | |
stm32: Make sure to turn on the usb clock before writing to the packet memory
The USB clock needs to be enabled prior to writing to the USB packet
memory.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Diffstat (limited to 'src/stm32/usbfs.c')
| -rw-r--r-- | src/stm32/usbfs.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/stm32/usbfs.c b/src/stm32/usbfs.c index a7a20548..ca66f513 100644 --- a/src/stm32/usbfs.c +++ b/src/stm32/usbfs.c @@ -34,7 +34,7 @@ struct ep_mem { uint32_t ep_bulk_in_tx[USB_CDC_EP_BULK_IN_SIZE / 2]; }; -#define EPM ((struct ep_mem *)(USB_BASE + 0x400)) +#define EPM ((struct ep_mem *)USB_PMAADDR) #define CALC_ADDR(p) (((void*)(p) - (void*)EPM) / 2) #define CALC_SIZE(s) ((s) > 32 ? (DIV_ROUND_UP((s), 32) << 10) | 0x8000 \ @@ -268,12 +268,12 @@ usb_init(void) udelay(5000); gpio_in_setup(GPIO('A', 12), 0); - // Setup USB packet memory - btable_configure(); - // Enable USB clock enable_pclock(USB_BASE); + // Setup USB packet memory + btable_configure(); + // Reset usb controller and enable interrupts USB->CNTR = USB_CNTR_FRES; USB->BTABLE = 0; |