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stm32f3: cdcacm: fix grossly misleading comments

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This commit is contained in:
Karl Palsson
2018-05-01 22:14:26 +00:00
parent 301b4f9194
commit 8c6c8720bf
1 changed files with 2 additions and 2 deletions
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4
examples/stm32/f3/stm32f3-discovery/usb_cdcacm/cdcacm.c
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@@ -235,12 +235,12 @@ static void cdcacm_set_config(usbd_device *usbd_dev, uint16_t wValue)
static void usb_setup(void) static void usb_setup(void)
{ {
/* Enable clocks for GPIO port A (for GPIO_USART2_TX) and USART2. */ /* Enable clocks for GPIO port A and USB peripheral. */
rcc_usb_prescale_1(); rcc_usb_prescale_1();
rcc_periph_clock_enable(RCC_USB); rcc_periph_clock_enable(RCC_USB);
rcc_periph_clock_enable(RCC_GPIOA); rcc_periph_clock_enable(RCC_GPIOA);
/* Setup GPIO pin GPIO_USART2_TX/GPIO9 on GPIO port A for transmit. */ /* Setup GPIO pins for USB D+/D-. */
gpio_mode_setup(GPIOA, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO11 | GPIO12); gpio_mode_setup(GPIOA, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO11 | GPIO12);
gpio_set_af(GPIOA, GPIO_AF14, GPIO11| GPIO12); gpio_set_af(GPIOA, GPIO_AF14, GPIO11| GPIO12);
} }