Answer by Justme for Confusion with polling data by an MCU using UART
No, because your code must be ready listening back the response before the device starts sending it. The device may start sending the response right aftet MCU has send the last byte of the command to...
View ArticleAnswer by Dirceu Rodrigues Jr for Confusion with polling data by an MCU using...
...between HAL_UART_Transmit and HAL_UART_Receive I don't add any delaybut still I receive data without any problem. On the other hand, if Iadd delay between HAL_UART_Transmit and HAL_UART_Receive I...
View ArticleConfusion with polling data by an MCU using UART
I'm using an MCU board(STM32 with HAL) and basically polling data from a device using serial protocol. The MCU sends a fixed byte array(6 bytes) to the device, and in response it receives a fixed byte...
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Answer by jusaca for Confusion with polling data by an MCU using UART
UART works by starting and ending one "frame" of data (typically 8 Bit) with a start and a stop bit on the signal line. As long as the receiver does not see any such start bit, it simply waits until...
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