MAX14830
Production
The MAX14830 is an advanced quad universal asynchronous receiver-transmitter (UART), each UART having 128 words of receive and transmit first-in/first...
Datasheet
MAX14830 on Analog.com
Hello support,
I'm using a MAX14830 quad UART under FreeRTOS with my own driver.
So far I have failed to run a test sequence that would raise the Rx overrun flag.
The test sequence basically sends 136 bytes into the Rx of one UART with the software not reading the RHR. After 128 bytes the Rx FIFO is expected to be full. 128 bytes are successfully read, and then the FIFO is viewed as empty as expected. However, the extra 8 bytes that were sent did not set the Rx overrun status.
I've tried polling the Line Status Register, as well as triggering an interrupt on Rx errors, but failed to get this Rx overrun status set or generate an interrupt.
Other tests are successful in getting the other error conditions: parity, framing, break. The interrupt on error occurs for all error conditions but the Overrun.
Any hint about how to get this guy set when an overrun occurs?
Thank you.
Hi, Hardy,
Thank you for your inquiry. Currently, only Maxim ATE products are supported on EngineerZone at this time. Over the next several months, you will see more Maxim products being supported in EngineerZone. Please visit one of the technical support pages on our newly integrated website below for assistance with Maxim Integrated products.
EN - https://www.analog.com/en/support/technical-support.html#
CN - https://support.analog.com/zh-CN/technical-support/
JP - https://support.analog.com/ja-JP/technical-support/
Regards,
Jason
Hi, Hardy,
Thank you for your inquiry. Currently, only Maxim ATE products are supported on EngineerZone at this time. Over the next several months, you will see more Maxim products being supported in EngineerZone. Please visit one of the technical support pages on our newly integrated website below for assistance with Maxim Integrated products.
EN - https://www.analog.com/en/support/technical-support.html#
CN - https://support.analog.com/zh-CN/technical-support/
JP - https://support.analog.com/ja-JP/technical-support/
Regards,
Jason