epagris/flatUSB
1
0
Fork 0
Code Issues 1 Pull Requests Packages Projects Releases Wiki Activity

- some explanatory comments added

Browse Source
This commit is contained in:
Wiesner András 2024-04-20 10:54:27 +02:00
parent db4e59cfd9
commit 3e67079427
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
usb_driver.c
View File

@ -345,7 +345,7 @@ void usbdrv_configure_endpoint(uint8_t ep, uint8_t dir, const USBDRV_EpConfig *c
// program FIFO corresponding FIFO number // program FIFO corresponding FIFO number
WRITE_FIELD(USBINEP[ep].DIEPCTL, USB_OTG_DIEPCTL_TXFNUM, ep); WRITE_FIELD(USBINEP[ep].DIEPCTL, USB_OTG_DIEPCTL_TXFNUM, ep);
// store Tx FIFO size // store Tx FIFO size (both fields are WORD units, NOT bytes, this RM is missing this information!)
uint32_t tx_fifo_config = ((cfg->fifo_size >> 2) << USB_OTG_DIEPTXF_INEPTXFD_Pos) | (cfg->fifo_address >> 2); // combine size in DWORDs and address uint32_t tx_fifo_config = ((cfg->fifo_size >> 2) << USB_OTG_DIEPTXF_INEPTXFD_Pos) | (cfg->fifo_address >> 2); // combine size in DWORDs and address
*(USB_pDIEPTXF[ep]) = tx_fifo_config; // save *(USB_pDIEPTXF[ep]) = tx_fifo_config; // save