CDC implementation without any timers #1
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Signed-off-by: Frederic.Pillon <[email protected]>
Signed-off-by: Frederic.Pillon <[email protected]>
Signed-off-by: Frederic.Pillon <[email protected]>
Signed-off-by: Frederic.Pillon <[email protected]>
Signed-off-by: Frederic.Pillon <[email protected]>
Signed-off-by: Frederic.Pillon <[email protected]>
Signed-off-by: Frederic.Pillon <[email protected]>
Signed-off-by: Frederic.Pillon <[email protected]>
Signed-off-by: Frederic.Pillon <[email protected]>
Signed-off-by: Frederic.Pillon <[email protected]>
Signed-off-by: Frederic.Pillon <[email protected]>
Signed-off-by: Frederic.Pillon <[email protected]>
Signed-off-by: Frederic.Pillon <[email protected]>
Below switch already define in usb_def.h, if not defined: USBD_MAX_NUM_CONFIGURATION USBD_SUPPORT_USER_STRING USBD_SELF_POWERED Signed-off-by: Frederic.Pillon <[email protected]>
Signed-off-by: Frederic.Pillon <[email protected]>
GPIO config will be handle thanks Peripherals Pins Signed-off-by: Frederic.Pillon <[email protected]>
Signed-off-by: Frederic Pillon <[email protected]>
Signed-off-by: Frederic.Pillon <[email protected]>
Signed-off-by: Frederic.Pillon <[email protected]>
Signed-off-by: Frederic.Pillon <[email protected]>
Signed-off-by: Frederic.Pillon <[email protected]>
Signed-off-by: Frederic.Pillon <[email protected]>
Signed-off-by: Frederic.Pillon <[email protected]>
Signed-off-by: Frederic.Pillon <[email protected]>
Fix stm32duino#341 Signed-off-by: Frederic.Pillon <[email protected]>
Signed-off-by: Frederic.Pillon <[email protected]>
Added fixes as advised by @ktand * If the USB packet to be sent is equal to the USB buffer size (64 bytes), a Zero Length Packet must be sent. Otherwise the USB CDC connection will fail. * Add check for linestate in CDC_Flush and in CDC_TIM_PeriodElapsedCallback to ignore transmission if the device is disconnected.
Add USB menu for Generic F4 Change PID to 0x0483 Signed-off-by: Frederic.Pillon <[email protected]>
Signed-off-by: Frederic.Pillon <[email protected]>
…ry copy operations
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Hi @makarenya |
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Jan 31, 2019
Fix BLUEPILL_F103C6 definition
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CDC implementation without any timers and with reduced count of memory copy operations.
I tried to achieve the following goals: remove the dependency on the timer, and reduce the number of memcpy operations.
For example, the STM32F103C8T6 doesn't have so many timers, and using one of them for the CDC, is not so good.
And memcpy operations.
In fact, they occur too often. First, in the USBSerial::write method the data is copied from the caller buffer into the UserTxBuffer, then the CDC_TIM_PeriodElapsedCallback the same data is copied into the StackTxBuffer, this data is transferred to USBD_CDC_SetTxBuffer without copying, and from where they are copied to PMA. 3 copy operations, and I managed two.
Same situation with the receive.