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stm32/usbdev: Add support for high-speed USB device mode.

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This patch adds support in the USBD configuration and CDC-MSC-HID class for
high-speed USB mode.  To enable it the board configuration must define
USE_USB_HS, and either not define USE_USB_HS_IN_FS, or be an STM32F723 or
STM32F733 MCU which have a built-in HS PHY.  High-speed mode is then
selected dynamically by passing "high_speed=True" to the pyb.usb_mode()
function, otherwise it defaults to full-speed mode.

This patch has been tested on an STM32F733.
This commit is contained in:
Damien George
2018-02-01 17:57:44 +11:00
parent 71312d0bd1
commit db702ba722
9 changed files with 175 additions and 40 deletions
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2
ports/stm32/usbd_cdc_interface.c
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@@ -198,7 +198,7 @@ void HAL_PCD_SOFCallback(PCD_HandleTypeDef *hpcd) {
// the host waits for all data to arrive (ie, waits for a packet < max packet size).
// To flush a packet of exactly max packet size, we need to send a zero-size packet.
// See eg http://www.cypress.com/?id=4&rID=92719
cdc->tx_need_empty_packet = (buffsize > 0 && buffsize % CDC_DATA_FS_MAX_PACKET_SIZE == 0 && cdc->tx_buf_ptr_out_shadow == cdc->tx_buf_ptr_in);
cdc->tx_need_empty_packet = (buffsize > 0 && buffsize % usbd_cdc_max_packet(usbd->pdev) == 0 && cdc->tx_buf_ptr_out_shadow == cdc->tx_buf_ptr_in);
}
}
}