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Fix issue #9. MAX_PAYLOAD warning #55

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Fix issue #9. MAX_PAYLOAD warning #55

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7 changes: 4 additions & 3 deletions target/min.c
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Original file line number Diff line number Diff line change
Expand Up @@ -503,14 +503,15 @@ static void rx_byte(struct min_context *self, uint8_t byte)
self->rx_control = byte;
crc32_step(&self->rx_checksum, byte);
if (self->rx_frame_length > 0) {
self->rx_frame_state = RECEIVING_PAYLOAD;
#if (MAX_PAYLOAD != 255)
// Can reduce the RAM size by compiling limits to frame sizes
if (self->rx_frame_length <= MAX_PAYLOAD) {
self->rx_frame_state = RECEIVING_PAYLOAD;
} else {
if (self->rx_frame_length > MAX_PAYLOAD) {
// Frame dropped because it's longer than any frame we can buffer
min_debug_print("Dropping frame because length %d > MAX_PAYLOAD %d", self->rx_frame_length, MAX_PAYLOAD);
self->rx_frame_state = SEARCHING_FOR_SOF;
}
#endif
} else {
self->rx_frame_state = RECEIVING_CHECKSUM_3;
}
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