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Fixed syntax error which modelsim did not detect in my changes for making uart work with qemu's simulation.

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This commit is contained in:
Ross Thompson 2021-11-23 10:00:32 -06:00
parent f12e7e1b68
commit 3fc370654d
2 changed files with 3 additions and 4 deletions
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2
wally-pipelined/config/buildroot/wally-config.vh
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@ -107,7 +107,7 @@
`define GPIO_LOOPBACK_TEST 0
// Hardware configuration
`define UART_PRESCALE 1
`define UART_PRESCALE 0
// Interrupt configuration
`define PLIC_NUM_SRC 53

5
wally-pipelined/src/uncore/uartPC16550D.sv
View File

@ -133,7 +133,7 @@ module uartPC16550D(
if (~HRESETn) begin // Table 3 Reset Configuration
IER <= #1 4'b0;
FCR <= #1 8'b0;
if (~QEMU) LCR <= #1 8'b11 else LCR <= #1 8'b0;
if (`QEMU) LCR <= #1 8'b11; else LCR <= #1 8'b0;
MCR <= #1 5'b0;
LSR <= #1 8'b01100000;
MSR <= #1 4'b0;
@ -261,7 +261,6 @@ module uartPC16550D(
assign rxcentered = rxbaudpulse & (rxoversampledcnt == 4'b1000); // implies rxstate = UART_ACTIVE
endgenerate
assign rxcentered = rxbaudpulse & (rxoversampledcnt == 2'b10); // implies rxstate = UART_ACTIVE
assign rxbitsexpected = 4'd1 + (4'd5 + {2'b00, LCR[1:0]}) + {3'b000, LCR[3]} + 4'd1; // start bit + data bits + (parity bit) + stop bit
///////////////////////////////////////////
@ -382,7 +381,7 @@ module uartPC16550D(
assign txbitsexpected = 4'd1 + (4'd5 + {2'b00, LCR[1:0]}) + {3'b000, LCR[3]} + 4'd1 + {3'b000, LCR[2]} - 4'd1; // start bit + data bits + (parity bit) + stop bit(s)
generate
if `QEMU
if (`QEMU)
assign txnextbit = txbaudpulse & (txoversampledcnt == 2'b00); // implies txstate = UART_ACTIVE
else
assign txnextbit = txbaudpulse & (txoversampledcnt == 4'b0000); // implies txstate = UART_ACTIVE