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change how tristate I/O is spoofed in GPIO loopback test

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bbracker 2022-04-21 10:31:16 -07:00
parent e56b9f18d5
commit 9c1e398bb5
1 changed files with 2 additions and 2 deletions
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4
pipelined/src/uncore/gpio.sv
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@ -146,8 +146,8 @@ module gpio (
// chip i/o
// connect OUT to IN for loopback testing
if (`GPIO_LOOPBACK_TEST) assign input0d = GPIOPinsOut & output_en | (GPIOPinsIn & input_en);
else assign input0d = GPIOPinsIn & input_en;
if (`GPIO_LOOPBACK_TEST) assign input0d = ((output_en & GPIOPinsOut) | (~output_en & GPIOPinsIn)) & input_en;
else assign input0d = GPIOPinsIn & input_en;
flop #(32) sync1(HCLK,input0d,input1d);
flop #(32) sync2(HCLK,input1d,input2d);
flop #(32) sync3(HCLK,input2d,input3d);