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STLINKV3 does not read option bytes!

Uwe Bonnes
Principal II

This is with STLINKV3 with V3J7 connected to ST25R3911B-Disco. I try to read the option bytes at 0x1ff00000 :

14:22:04 : Size : 4 Bytes

14:22:04 : Address : 0x1FF00000

14:22:04 : Read progress:

14:22:04 : Error: Data read failed

BMP PC-hosted can be set to verbose and reports in that situation:

gdb_getpacket : m1ff00000,4

m packet: addr = 1ff00000, len = 4

 Send ( 16): f2070000f01f0400.0000000000000000. Rec (4/4)80000000

 Send ( 16): f23e000000000000.0000000000000000. Rec (12/12)180000000000f01f.00000000

read_retry failed. Send ( 16): f23e000000000000.0000000000000000. Rec (12/12)180000000000f01f.00000000

STLINK_SWD_AP_WDATA_ERROR

Is this intended behaviour or an error?

1 REPLY 1
Uwe Bonnes
Principal II