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Added tetra rx ext app (#3257)

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Totoo
2026-07-09 09:10:08 +02:00
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parent 42122a739c
commit d671455f79
22 changed files with 1402 additions and 0 deletions
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firmware/application/external/tetra_rx/tetra_rcpc.cpp
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#include "tetra_rcpc.hpp"
#include <string.h>
namespace ui::external_app::tetra_rx {
static constexpr uint8_t P_RATE_2_3[3] = {1, 2, 5};
static constexpr uint32_t T_RATE_2_3 = 3;
static constexpr uint32_t PERIOD = 8;
void RCPC::depuncture_2_3(BitVector& in, uint8_t* out, uint32_t in_bits) {
const uint32_t mother_bits = ((in_bits + T_RATE_2_3 - 1) / T_RATE_2_3) * PERIOD + PERIOD;
memset(out, ERASED, mother_bits);
for (uint32_t j = 1; j <= in_bits; j++) {
uint32_t i = j;
uint32_t k = PERIOD * ((i - 1) / T_RATE_2_3);
k += P_RATE_2_3[(i - 1) % T_RATE_2_3];
if (k >= 1 && k <= mother_bits) {
out[k - 1] = in.get(j - 1);
}
}
}
} // namespace ui::external_app::tetra_rx