Error when access field in SVD file is "write-only"

[karimpanacci]

Hi, I'm trying to get svd2rust to work with this SVD file:
HC32L110.svd.zip

but it gives me the following error:

[INFO  svd2rust] Parsing device from SVD file
[INFO  svd2rust] Rendering device
[ERROR svd2rust] Error rendering device
    
    Caused by:
        0: can't render peripheral 'RAM', group 'No group name'
        1: can't render register 'ICLR'
        2: Field RAM.ICLR.ERRCLR is not writtable or readable

The contents of the SVD file are as follows:

<register>
    <name>ICLR</name>
    <description>desc ICLR</description>
    <addressOffset>0xC</addressOffset>
    <size>32</size>
    <access>read-only</access>
    <resetValue>0x0</resetValue>
    <resetMask>0x1</resetMask>
    <fields>
        <field>
            <name>ERRCLR</name>
            <description>desc ERRCLR</description>
            <msb>0</msb>
            <lsb>0</lsb>
            <access>write-only</access>
        </field>
    </fields>
</register>

I noticed that if I enter "read-write" in the access field, for example, everything continues without errors and the PAC is generated.

What do you think is the problem?

[karimpanacci]

I noticed now that the ICLR register is set as read-only and instead the ERRCLR field is set as write-only, this seems to be a contradiction, I think the manufacturer made a mistake, in your opinion which is the most correct value? both write-only or both read-only?

[burrbull]

both write-only or both read-only?

I do not know. You should check reference manual or datasheet for your chip to understand.

Most correct way in this situation is to remove access from register and add it to each field.

[karimpanacci]

@burrbull I can't find any information about this register on the datasheet, and to tell the truth, no information about the type of access on any register...

This is the datasheet:

https://unirec.ru/upload/datasheets/DS_HC32L110SeriesDatasheet_Rev2.70.pdf

In any case I think I will close the problem since it is not a svd2rust problem