diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/rtl/coretest.v | 55 |
1 files changed, 33 insertions, 22 deletions
diff --git a/src/rtl/coretest.v b/src/rtl/coretest.v index 92fab28..c8172a5 100644 --- a/src/rtl/coretest.v +++ b/src/rtl/coretest.v @@ -82,11 +82,13 @@ module coretest( parameter RESET_OK = 8'h7d; // rx_engine states. - parameter RX_IDLE = 3'h0; - parameter RX_SYN = 3'h1; - parameter RX_ACK = 3'h2; - parameter RX_CMD = 3'h3; - parameter RX_DONE = 3'h4; + parameter RX_IDLE = 3'h0; + parameter RX_SYN = 3'h1; + parameter RX_ACK = 3'h2; + parameter RX_NSYN = 3'h4; + parameter RX_PARSE = 3'h5; + parameter RX_CMD = 3'h6; + parameter RX_DONE = 3'h7; // rx_engine states. parameter TX_IDLE = 3'h0; @@ -541,29 +543,38 @@ module coretest( rx_engine_we = 1; end end - + RX_ACK: begin rx_ack_new = 1; rx_ack_we = 1; + rx_engine_new = RX_NSYN; + rx_engine_we = 1; + end + RX_NSYN: + begin if (!rx_syn_reg) begin - rx_ack_new = 0; - rx_ack_we = 1; - - if (rx_buffer[rx_buffer_ptr_reg] == EOC) - begin - rx_engine_new = RX_DONE; - rx_engine_we = 1; - end - - else - begin - rx_buffer_ptr_inc = 1; - rx_engine_new = RX_IDLE; - rx_engine_we = 1; - end + rx_engine_new = RX_PARSE; + rx_engine_we = 1; + end + end + + RX_PARSE: + begin + rx_ack_new = 0; + rx_ack_we = 1; + if (rx_buffer[rx_buffer_ptr_reg] == EOC) + begin + rx_engine_new = RX_DONE; + rx_engine_we = 1; + end + else + begin + rx_buffer_ptr_inc = 1; + rx_engine_new = RX_IDLE; + rx_engine_we = 1; end end @@ -584,7 +595,7 @@ module coretest( rx_engine_new = RX_IDLE; rx_engine_we = 1; end - + default: begin rx_buffer_ptr_rst = 1; |