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chg: reverting old @satsuoni felica changes.

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chg: applied @pwpiwi 's fixes for iso 14B / 15
This commit is contained in:
iceman1001 2017-10-23 21:56:47 +02:00
commit f3ebfcb9a0
6 changed files with 37 additions and 54 deletions
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17
fpga/hi_sniffer.v
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@ -17,11 +17,8 @@ module hi_sniffer(
output dbg;
input xcorr_is_848, snoop, xcorr_quarter_freq; // not used.
// let's try hi-pass
// We are only snooping, all off.
assign pwr_hi = ck_1356megb & xcorr_quarter_freq;//1'b0;
assign pwr_hi = 1'b0;
assign pwr_lo = 1'b0;
assign pwr_oe1 = 1'b0;
assign pwr_oe2 = 1'b0;
@ -32,12 +29,8 @@ reg ssp_frame;
reg [7:0] adc_d_out = 8'd0;
reg [2:0] ssp_cnt = 3'd0;
reg [12:0] avg=13'd0;
assign adc_clk = ck_1356megb;
assign ssp_clk = ~ck_1356megb;
assign adc_clk = ck_1356meg;
assign ssp_clk = ~ck_1356meg;
always @(posedge ssp_clk)
begin
@ -48,9 +41,7 @@ begin
if(ssp_cnt[2:0] == 3'b000) // set frame length
begin
// adc_d_out[7:0] <= (alias_buf>>>3) +8'd126;//( $signed(adc_d-adc_d_old)>1 | $signed(adc_d_old-adc_d)>1)? alias_buf+adc_d-adc_d_old:alias_buf; //alias_buf[11:3]+8'd126;//adc_d;
// adc_d_out[7:0]<=adc_d;
adc_d_out[7:0] <=adc_d;//-(avg>>3) +8'd126;
adc_d_out[7:0] <= adc_d;
ssp_frame <= 1'b1;
end
else