periph_adc_v2: swapped channel 0 and 3, so that gas cell is at CH0

c577eac2 · Maciej Lipinski · 9307489c · c577eac2
Commit c577eac2 authored Feb 22, 2023 by Maciej Lipinski
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Showing with 9 additions and 3 deletions

fsi_adc_rx.vhd hdl/rtl/fsi/fsi_adc_rx.vhd +9 -3

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--- a/hdl/rtl/fsi/fsi_adc_rx.vhd
+++ b/hdl/rtl/fsi/fsi_adc_rx.vhd
@@ -262,7 +262,13 @@ begin

    fifo_rd <= not fifo_empty;

-    gen_fifo_fmt_out: for i in 7 downto 0 generate
-        data_o(i) <= fifo_dout(i * 12 + 11 downto i * 12);
-    end generate;
+    -- tweak mapping of channels so that gas cell (ch3) is seen on ch0
+    data_o(0) <= fifo_dout(3 * 12 + 11 downto 3 * 12);
+    data_o(1) <= fifo_dout(1 * 12 + 11 downto 1 * 12);
+    data_o(2) <= fifo_dout(2 * 12 + 11 downto 2 * 12);
+    data_o(3) <= fifo_dout(0 * 12 + 11 downto 0 * 12);
+    data_o(4) <= fifo_dout(4 * 12 + 11 downto 4 * 12);
+    data_o(5) <= fifo_dout(5 * 12 + 11 downto 5 * 12);
+    data_o(6) <= fifo_dout(6 * 12 + 11 downto 6 * 12);
+    data_o(7) <= fifo_dout(7 * 12 + 11 downto 7 * 12);
 end arch;