Forum Post: I test UART RX Interrupt on EVM6657,I loss a lot of bytes

I test UART RX Interrupt on EVM6657 used USB cable,when i send a package of date from PC to EVM6657,if package length less than 16 bytes ,it's work all right,but when the package length more than 16 bytes, i could just receive 16 bytes,other loss.

please lend me a hand!