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ethercat
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Inplace I/O: prevent pairing with already paired fmmus

This commit is contained in:
Martin Troxler 2010-10-18 10:30:57 +02:00
parent 9fd6b6c123
commit 911e09392f
1 changed files with 3 additions and 1 deletions
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4
master/slave_config.c
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@ -188,7 +188,9 @@ int ec_slave_config_prepare_fmmu(
tx_size = fmmu->data_size;
if (sc->allow_overlapping_pdos && sc->used_fmmus > 0) {
prev_fmmu = &sc->fmmu_configs[sc->used_fmmus-1];
if (fmmu->dir != prev_fmmu->dir) {
if (fmmu->dir != prev_fmmu->dir && prev_fmmu->tx_size != 0) {
// prev fmmu has opposite direction
// and is not already paired with prev-prev fmmu
prev_fmmu->tx_size = max(fmmu->data_size,prev_fmmu->data_size);
tx_size = 0;
fmmu_logical_start_address = prev_fmmu->logical_start_address;