From f5bed3c5b13bfcd20d55da19d8706c6089407793 Mon Sep 17 00:00:00 2001
From: Oleg Moiseenko <807634+merlokk@users.noreply.github.com>
Date: Thu, 9 Oct 2025 09:42:43 +0300
Subject: [PATCH] Adjusts LF ADC raw data processing

Adjusts the bit shift for ADC raw data conversion to refine the value range.
---
 firmware/application/src/rfid/reader/lf/lf_reader_generic.c | 2 +-
 software/script/chameleon_cli_unit.py                       | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/firmware/application/src/rfid/reader/lf/lf_reader_generic.c b/firmware/application/src/rfid/reader/lf/lf_reader_generic.c
index 1d5a3c2..4fdbc42 100644
--- a/firmware/application/src/rfid/reader/lf/lf_reader_generic.c
+++ b/firmware/application/src/rfid/reader/lf/lf_reader_generic.c
@@ -45,7 +45,7 @@ bool raw_read_to_buffer(uint8_t *data, size_t maxlen, uint32_t timeout_ms, size_
     while (NO_TIMEOUT_1MS(p_at, timeout_ms) && *outlen < maxlen) {
         uint16_t val = 0;
         while (cb_pop_front(&cb, &val) && *outlen < maxlen) {
-            val = val >> 6; // 14 bit ADC to 8 bit value
+            val = val >> 5; // 14 bit ADC to 8 bit value and /2 range
             data[*outlen] = val > 0xff ? 0xff : val;
             ++(*outlen);
         }
diff --git a/software/script/chameleon_cli_unit.py b/software/script/chameleon_cli_unit.py
index bc714dc..8144175 100644
--- a/software/script/chameleon_cli_unit.py
+++ b/software/script/chameleon_cli_unit.py
@@ -3267,7 +3267,7 @@ class LFADCGenericRead(ReaderRequiredUnit):
             for i in range(0, len(resp), width):
                 chunk = resp[i : i + width]
                 hexpart = " ".join(f"{b:02x}" for b in chunk)
-                binpart = "".join('1' if b >= 0x5f else '0' for b in chunk)
+                binpart = "".join('1' if b >= 0xbf else '0' for b in chunk)
                 print(f"{i:04x} {hexpart:<{width * 3}} {binpart}")
 
             avg = 0