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Diffstat (limited to 'docs/porting.md')
| -rw-r--r-- | docs/porting.md | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/docs/porting.md b/docs/porting.md index a38ff0192..deb1b9efb 100644 --- a/docs/porting.md +++ b/docs/porting.md @@ -1,6 +1,6 @@ # Porting -TinyUSB is designed to be a universal USB protocol stack for low-cost 32 bit microcontrollers. It +TinyUSB is designed to be a universal USB protocol stack for microcontrollers. It handles most of the high level USB protocol and relies on the microcontroller's USB peripheral for data transactions on different endpoints. Porting is the process of adding low-level support for the rest of the common stack. Once the low-level is implemented, it is very easy to add USB support @@ -25,8 +25,6 @@ Unless, you've read ahead, this will fail miserably. Now, lets get it to fail le One of the first things to change is the `-DCFG_TUSB_MCU` cflag in the `board.mk` file. This is used to tell TinyUSB what platform is being built. So, add an entry to `src/tusb_option.h` and update the CFLAG to match. -Also, add an entry for the board in `hw/bsp/board.h`. The CFLAG is auto-added. - Update `board.mk`'s VENDOR and CHIP_FAMILY values when creating the directory for the struct files. Duplicate one of the other sources from `src/portable` into `src/portable/<vendor>/<chip_family>` and delete all of the implementation internals. We'll cover what everything there does later. For now, get it compiling. ## Implementation @@ -104,7 +102,7 @@ Calls to this look like: dcd_event_setup_received(0, setup, true); -As before with `dcd_event_bus_signal` the first argument is the USB peripheral number and the third is true to signal its being called from an interrup handler. The middle argument is byte array of length 8 with the contents of the SETUP packet. It can be stack allocated because it is copied into the queue. +As before with `dcd_event_bus_signal` the first argument is the USB peripheral number and the third is true to signal its being called from an interrupt handler. The middle argument is byte array of length 8 with the contents of the SETUP packet. It can be stack allocated because it is copied into the queue. #### Endpoints |