Lerking/micropython
1
0
Fork 0
mirror of https://github.com/micropython/micropython.git synced 2026-01-06 12:10:13 +01:00
Code Issues Actions 27 Packages Projects Releases Wiki Activity

stm32: Add support for USB on L0 MCUs.

Browse Source
This commit is contained in:
Damien George
2019-07-16 14:45:53 +10:00
parent 788e7f50f2
commit 4c1ad1f691
6 changed files with 100 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
ports/stm32/usbd_cdc_interface.c
View File

@@ -140,11 +140,14 @@ int8_t usbd_cdc_control(usbd_cdc_state_t *cdc_in, uint8_t cmd, uint8_t* pbuf, ui
if (length & 1) {
// The actual connection state is delayed to give the host a chance to
// configure its serial port (in most cases to disable local echo)
PCD_HandleTypeDef *hpcd = cdc->base.usbd->pdev->pData;
USB_OTG_GlobalTypeDef *USBx = hpcd->Instance;
cdc->connect_state = USBD_CDC_CONNECT_STATE_CONNECTING;
usbd_cdc_connect_tx_timer = 8; // wait for 8 SOF IRQs
USBx->GINTMSK |= USB_OTG_GINTMSK_SOFM;
#if defined(STM32L0)
USB->CNTR |= USB_CNTR_SOFM;
#else
PCD_HandleTypeDef *hpcd = cdc->base.usbd->pdev->pData;
hpcd->Instance->GINTMSK |= USB_OTG_GINTMSK_SOFM;
#endif
} else {
cdc->connect_state = USBD_CDC_CONNECT_STATE_DISCONNECTED;
}
@@ -216,7 +219,11 @@ void HAL_PCD_SOFCallback(PCD_HandleTypeDef *hpcd) {
--usbd_cdc_connect_tx_timer;
} else {
usbd_cdc_msc_hid_state_t *usbd = ((USBD_HandleTypeDef*)hpcd->pData)->pClassData;
#if defined(STM32L0)
USB->CNTR &= ~USB_CNTR_SOFM;
#else
hpcd->Instance->GINTMSK &= ~USB_OTG_GINTMSK_SOFM;
#endif
for (int i = 0; i < MICROPY_HW_USB_CDC_NUM; ++i) {
usbd_cdc_itf_t *cdc = (usbd_cdc_itf_t*)usbd->cdc[i];
if (cdc->connect_state == USBD_CDC_CONNECT_STATE_CONNECTING) {