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rfnoc: fir filter: Use burst op to write coefficients

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This commit is contained in:
Wade Fife 2026-08-25 09:03:10 -05:00 committed by mkoop-ni
parent 000cd8e3cb
commit 53a1ef762e
1 changed files with 2 additions and 2 deletions
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4
host/lib/rfnoc/fir_filter_block_control.cpp
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@ -162,7 +162,6 @@ private:
const size_t num_coeffs = coeffs.size();
// Write coefficients. The order depends on _coeff_load_backwards.
const std::vector<uint32_t> coeffs_addr(num_coeffs - 1, REG_FIR_LOAD_COEFF_ADDR);
// Here we store all coefficients except the last one (which goes to a
// different address), converted to 32-bits for easy poking.
std::vector<uint32_t> coeffs_minus_last(num_coeffs - 1);
@ -180,7 +179,8 @@ private:
[](int16_t value) -> uint32_t { return static_cast<uint32_t>(value); });
}
_fir_filter_reg_iface.multi_poke32(coeffs_addr, coeffs_minus_last, chan);
_fir_filter_reg_iface.burst_poke32(
REG_FIR_LOAD_COEFF_ADDR, coeffs_minus_last, chan);
// ...and the final coefficient (num_coeffs-1)
_fir_filter_reg_iface.poke32(
REG_FIR_LOAD_COEFF_LAST_ADDR, static_cast<uint32_t>(last_coeff), chan);