2024-09-01 10:54 PM
Good morning,
I'm writing to ask about the missing "Hardware flow control" option on our new H7S3L8 board..
We are trying to migrate a project from an F756ZG which did almost everything well (aside from the debugger).
However, we're having an issue with our RS485 connections, which require a "DE" (driver enabled) signal :
Here's the F7 UART7 configuration (with the Hardware Flow Control option)
We tried to implement it ourselves, thinking it would just require an extra GPIO output and the following logic :
HAL_GPIO_WritePin(TX_EN_GPIO_Port, TX_EN_Pin, GPIO_PIN_SET);
HAL_UART_Transmit(&huart7, data, strlen (data) , 1000);
HAL_GPIO_WritePin(TX_EN_GPIO_Port, TX_EN_Pin, GPIO_PIN_RESET);
But right now we're having issues communicating with our sensors (we're going through a MOD-RS485 board)
Does anyone know if the H7S3L8 will eventually get the feature, is it something that can easily be done manually... or should we give up and move to a different H7 variant? (like the H723ZG)
Thank you very much!
Philippe Mazouer
2024-09-01 11:53 PM
Hello @PhilMaz
Thank you so much for your request. I'm looking on that and I will be back to you ASAP.
Best Regards.
STTwo-32
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