| From d137a450dd02d3653e184e7ff1e3978ba2f56efe Mon Sep 17 00:00:00 2001 |
| From: Tom Roberts <tomroberts@lowrisc.org> |
| Date: Wed, 27 Nov 2019 14:07:28 +0000 |
| Subject: [PATCH 2/4] [abstract cs] Do not execute invalid abstract cmd |
| |
| If the command written is invalid, just set cmderr and do not attempt to |
| execute it. This works around some timing issues in OpenOCD. |
| --- |
| src/dm_mem.sv | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| diff --git a/src/dm_mem.sv b/src/dm_mem.sv |
| index 5c361fc..49daa38 100644 |
| --- a/src/dm_mem.sv |
| +++ b/src/dm_mem.sv |
| @@ -140,7 +140,7 @@ module dm_mem #( |
| case (state_q) |
| Idle: begin |
| cmdbusy_o = 1'b0; |
| - if (cmd_valid_i && halted_q_aligned[hartsel]) begin |
| + if (cmd_valid_i && halted_q_aligned[hartsel] && !unsupported_command) begin |
| // give the go signal |
| state_d = Go; |
| end else if (cmd_valid_i) begin |
| -- |
| 2.24.1.735.g03f4e72817-goog |
| |
