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pulp-platform / riscv-dbg

RISC-V Debug Support for our PULP RISC-V Cores
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Read of SBAddress0/1 can trigger SBBUSYERROR #91

Closed Silabs-ArjanB closed 3 years ago

Silabs-ArjanB commented 3 years ago

A DMI read of SBAddress0 andSBAddress0 will (wrongly) trigger SBBUSYERROR when the system bus master is busy.

https://github.com/pulp-platform/riscv-dbg/blob/f9cf9c40923151afe743fc06b2953731291eae17/src/dm_csrs.sv#L328

According to the RISC-V Debug spec this should only happen for writes:

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