Mirrors/NawfalMotii79-PLFM_RADAR
1
0
Fork 0
mirror of https://github.com/NawfalMotii79/PLFM_RADAR.git synced 2026-06-10 15:31:21 +00:00
Code Issues Packages Projects Releases Wiki Activity

fix(fpga): reset chirp_counter at DONE; source CHIRP_MAX from radar_params

Browse Source 
C-3: plfm_chirp_controller_enhanced never reset chirp_counter when the
frame completed. Counter sat at CHIRP_MAX after frame 1, so the
LONG_LISTEN -> GUARD transition guard (== CHIRP_MAX/2-1) never matched
correctly on subsequent frames and frame 2+ ran extra chirps until the
6-bit counter wrapped. Reset chirp_counter in the DONE state.

S-2: Replace hardcoded CHIRP_MAX = 32 with RP_CHIRPS_PER_FRAME from
radar_params.vh so the TX FSM tracks the single source of truth.

S-1: Correct misleading labels in tb_system_e2e G14.1-G14.3. Per
radar_params.vh the range_mode encoding is 2'b00 = 3 km, 2'b01 =
long-range, 2'b10/2'b11 = reserved. The TB strings previously called
2'b01 "short" and 2'b10 "long", which is inverted and inconsistent
with the RTL comments in radar_mode_controller.v.

Regression: 32/32 PASS.
This commit is contained in:
Jason
2026-04-22 19:34:09 +05:45
parent 21aaa5ac33
commit 3d0ee50999
2 changed files with 14 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files
9_Firmware/9_2_FPGA/tb/tb_system_e2e.v
+6 -6
View File
@@ -1161,20 +1161,20 @@ initial begin
// The registers were re-loaded in G9. Send fresh values to verify write path.
// --- Range Mode Register (0x20, Fix 7) ---
// G14.1: Set range_mode to short-range (0x01)
// G14.1: Set range_mode to long-range (0x01)
bfm_send_cmd(8'h20, 8'h00, 16'h0001);
check(dut.host_range_mode == 2'b01,
"G14.1: Opcode 0x20 -> host_range_mode = 2'b01 (short)");
"G14.1: Opcode 0x20 -> host_range_mode = 2'b01 (long-range)");
// G14.2: Set range_mode to long-range (0x02)
// G14.2: Set range_mode to reserved value 0x02 (permissive: stored as-is)
bfm_send_cmd(8'h20, 8'h00, 16'h0002);
check(dut.host_range_mode == 2'b10,
"G14.2: Opcode 0x20 -> host_range_mode = 2'b10 (long)");
"G14.2: Opcode 0x20 -> host_range_mode = 2'b10 (reserved)");
// G14.3: Restore range_mode to auto (0x00)
// G14.3: Restore range_mode to 3 km (0x00)
bfm_send_cmd(8'h20, 8'h00, 16'h0000);
check(dut.host_range_mode == 2'b00,
"G14.3: Opcode 0x20 -> host_range_mode = 2'b00 (auto)");
"G14.3: Opcode 0x20 -> host_range_mode = 2'b00 (3 km)");
// --- CFAR Guard Cells (0x21) ---
// G14.4: Set guard cells to 4