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STMicroelectronics / STM32CubeG0

STM32Cube MCU Full Package for the STM32G0 series - (HAL + LL Drivers, CMSIS Core, CMSIS Device, MW libraries plus a set of Projects running on all boards provided by ST (Nucleo, Evaluation and Discovery Kits))
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HDMI CEC extra byte sent. #9

Closed bbooher closed 3 years ago

bbooher commented 4 years ago

Describe the set-up Custom board with G071G8 and required HDMI circuitry. VS Code with GCC: not a compiler-dependent issue.

Describe the bug An extra byte is sent with CEC commands due to an off-by-one bug in the IRQ Handler in stm32g0xx_hal_cec.c LINE 825. The logical comparison should be with 1 instead of 0 since the decrement has not yet occurred.

How To Reproduce

  1. A valid HDMI device is needed. Send a CEC command using the ...Transmit_IT function in the HAL.
  2. Sending any CEC command longer than 1 byte.
  3. A logic analyzer with a CEC decoder is useful to observe the problem.
ASELSTM commented 4 years ago

Hi @bbooher,

Thank you for reporting this issue. It will be forwarded to our development teams for analysis. We will be back to you as soon as we get an answer. Thank you in advance for your patience.

With regards,

ASELSTM commented 4 years ago

Hi @bbooher,

The issue you pointed out has been confirmed, a fix will be implemented and made available in future release. Thank you once again for your contribution.

With regards,

ASELSTM commented 4 years ago

ST Internal Reference: 87137

ALABSTM commented 4 years ago

Same issue reported on STM32CubeF0 here.

ASELSTM commented 3 years ago

Hi @bbooher,

The issue you reported has been fixed in the frame of version v1.5.0 of the STM32CubeG0 published on GitHub.

Please allow me then to close this thread and thank you again for having reported.

With regards,