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AM fix code clean

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OneOfEleven 2023-09-23 10:19:02 +01:00
parent 2cbaeb7431
commit c46e2fd555
4 changed files with 23 additions and 21 deletions
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42
app/app.c
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@ -70,6 +70,8 @@ static const uint8_t orig_pga = 6; // -3dB
#ifdef ENABLE_AM_FIX
// stuff to overcome the AM demodulator saturation problem
//
// that is until someone works out how to properly configure the BK chip !!
// REG_10 AGC gain table
//
@ -115,12 +117,12 @@ static const uint8_t orig_pga = 6; // -3dB
typedef struct
{
uint8_t lna_short:2;
uint8_t lna:3;
uint8_t mixer:2;
uint8_t pga:3;
// } __attribute__((packed)) t_am_fix_gain_table;
uint8_t lna_short:2; // 0 ~ 3
uint8_t lna:3; // 0 ~ 7
uint8_t mixer:2; // 0 ~ 3
uint8_t pga:3; // 0 ~ 7
} t_am_fix_gain_table;
// } __attribute__((packed)) t_am_fix_gain_table;
static const t_am_fix_gain_table am_fix_gain_table[] =
{
@ -170,22 +172,22 @@ static const uint8_t orig_pga = 6; // -3dB
{3, 4, 0, 5}, // 42 0dB -6dB -8dB -6dB .. -20dB
{3, 5, 1, 4}, // 43 0dB -4dB -6dB -9dB .. -19dB
{3, 3, 3, 4}, // 44 0dB -9dB 0dB -9dB .. -18dB
{3, 3, 0, 7}, // 45 0dB -9dB -8dB 0dB .. -17dB
{3, 2, 3, 6}, // 46 0dB -14dB 0dB -3dB .. -17dB original
{3, 2, 2, 7}, // 47 0dB -14dB -3dB 0dB .. -17dB
{3, 5, 1, 5}, // 48 0dB -4dB -6dB -6dB .. -16dB
{3, 3, 3, 5}, // 49 0dB -9dB 0dB -6dB .. -15dB
{3, 2, 3, 7}, // 50 0dB -14dB 0dB 0dB .. -14dB
{3, 5, 1, 6}, // 51 0dB -4dB -6dB -3dB .. -13dB
{3, 4, 2, 6}, // 52 0dB -6dB -3dB -3dB .. -12dB
{3, 5, 2, 6}, // 53 0dB -4dB -3dB -3dB .. -10dB
{3, 4, 3, 6}, // 54 0dB -6dB 0dB -3dB .. -9dB
{3, 5, 2, 7}, // 55 0dB -4dB -3dB 0dB .. -7dB
{3, 4, 3, 7}, // 56 0dB -6dB 0dB 0dB .. -6dB
{3, 5, 3, 7}, // 57 0dB -4dB 0dB 0dB .. -4dB
{3, 2, 3, 6}, // 45 0dB -14dB 0dB -3dB .. -17dB original
{3, 5, 1, 5}, // 46 0dB -4dB -6dB -6dB .. -16dB
{3, 3, 3, 5}, // 47 0dB -9dB 0dB -6dB .. -15dB
{3, 2, 3, 7}, // 48 0dB -14dB 0dB 0dB .. -14dB
{3, 5, 1, 6}, // 49 0dB -4dB -6dB -3dB .. -13dB
{3, 4, 2, 6}, // 50 0dB -6dB -3dB -3dB .. -12dB
{3, 5, 2, 6}, // 51 0dB -4dB -3dB -3dB .. -10dB
{3, 4, 3, 6}, // 52 0dB -6dB 0dB -3dB .. -9dB
{3, 5, 2, 7}, // 53 0dB -4dB -3dB 0dB .. -7dB
{3, 4, 3, 7}, // 54 0dB -6dB 0dB 0dB .. -6dB
{3, 5, 3, 7} // 55 0dB -4dB 0dB 0dB .. -4dB
};
unsigned int am_fix_gain_table_index = 46; // original
const unsigned int original_index = 45;
unsigned int am_fix_gain_table_index = original_index;
unsigned int am_fix_gain_table_index_prev = 0;
int16_t rssi_db_gain_diff = 0; // holds the compensation value to correct the RSSI reading
@ -209,7 +211,7 @@ static const uint8_t orig_pga = 6; // -3dB
rssi_db_gain_diff = 0;
am_fix_gain_table_index = 46; // original
am_fix_gain_table_index = original_index;
am_fix_gain_table_index_prev = 0;
}
#endif

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