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lattice: spi_put: avoid loop when tx == NULL

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Gwenhael Goavec-Merou
2023-09-06 15:50:28 +02:00
parent 61b59ce827
commit c417ce6746
1 changed files with 7 additions and 4 deletions
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src/lattice.cpp
+7 -4
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@@ -1361,10 +1361,13 @@ int Lattice::spi_put(const uint8_t *tx, uint8_t *rx, uint32_t len)
uint8_t jtx[len];
uint8_t jrx[len];
for (uint32_t i = 0; i < len; ++i) {
jtx[i] = (tx) ? LatticeBitParser::reverseByte(tx[i]) : 0;
jrx[i] = 0;
}
memset(jrx, 0, len);
if (tx)
for (uint32_t i = 0; i < len; ++i)
jtx[i] = LatticeBitParser::reverseByte(tx[i]);
else
memset(jtx, 0, len);
/* send first already stored cmd,
* in the same time store each byte