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authorsakumisu <[email protected]>2024-06-11 21:58:17 +0800
committersakumisu <[email protected]>2024-06-11 21:58:17 +0800
commit77af5638986d34bc8a6b385701033d23c54ec9c1 (patch)
tree96c30d081bc9d107e19c7d1ae7d05b6a09999195
parentf57234e668c4d0b2ec2cd1ec098785e2cda4cb5c (diff)
add comments for dwc2 fifo macro
-rw-r--r--cherryusb_config_template.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/cherryusb_config_template.h b/cherryusb_config_template.h
index 27f25199..c469a6a2 100644
--- a/cherryusb_config_template.h
+++ b/cherryusb_config_template.h
@@ -214,7 +214,11 @@
//#define CONFIG_USBDEV_FSDEV_PMA_ACCESS 2 // maybe 1 or 2, many chips may have a difference
/* ---------------- DWC2 Configuration ---------------- */
+/* (5 * number of control endpoints + 8) + ((largest USB packet used / 4) + 1 for
+ * status information) + (2 * number of OUT endpoints) + 1 for Global NAK
+ */
// #define CONFIG_USB_DWC2_RXALL_FIFO_SIZE (1024 / 4)
+/* IN Endpoints Max packet Size / 4 */
// #define CONFIG_USB_DWC2_TX0_FIFO_SIZE (64 / 4)
// #define CONFIG_USB_DWC2_TX1_FIFO_SIZE (512 / 4)
// #define CONFIG_USB_DWC2_TX2_FIFO_SIZE (64 / 4)