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update doc

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hathach 2019-09-20 23:05:08 +07:00
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README.md
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@ -53,7 +53,7 @@ Support multiple device configurations by dynamically changing usb descriptors.
## OS Abtraction layer
TinyUSB is completely thread-safe by pushing all ISR events into a central queue, then process it later in the non-ISR context. It also uses semphore/mutex to access shared resource such as CDC fifo. Therefore the stack needs to use some of OS's basic APIs. Following OSes are already supported out of the box.
TinyUSB is completely thread-safe by pushing all ISR events into a central queue, then process it later in the non-ISR context. It also uses semphore/mutex to access shared resource such as CDC FIFO. Therefore the stack needs to use some of OS's basic APIs. Following OSes are already supported out of the box.
- **No OS** : Disabling USB IRQ is used as way to provide mutex
- **FreeRTOS**