Hello everybody,
I think we have encountered the same problem as Alberto.
We ordered the components on the Alibaba platform because of the electronic component shortage several months ago.
The date code is BCRAJ2007A so year of production: 2020 work week: 7.
When I run 1 IDCODE iteration test with the tool JTAG Chain Debugger included with Quartus Prime Programmer,
I get a difference.
!Info: Performed 1 iteration(s) of the IDCODE test
!Info: JTAG chain connection is good and consistent. Detected 2 device(s)
!Info: Device 1: 5M1270Z (USERCODE: 0x00626A21)
!Info: Device 2: 5M1270Z (USERCODE: 0x0061FFB8)
!Info: JTAG chain connection is good. Detected 2 device(s)
!Info: Device 1: 5M1270Z/EPM1270 (USERCODE: 0x00000000) <- BAD CHIP GVALANCO
!Info: Device 2: 5M1270Z/EPM1270 (USERCODE: 0x00000000) <- BAD CHIP GVALANCO
!Info: Performed 1 iteration(s) of the IDCODE test
!Info: JTAG chain connection is good and consistent. Detected 2 device(s)
!Info: Device 1: 5M1270Z (USERCODE: 0x006253D8)
!Info: Device 2: 5M1270Z (USERCODE: 0x0061C12C)
None of the CPLD ordered on the Alibaba platform could be programmed. Each time we got the silicon ID error.
For these components I see a difference.
It says 5M1270Z/EPM1270 that is MAX V or MAX II.
Both 5M1270Z and EPM1270 have IDCODE=0x020A30DD. This code is in the handbooks.
Is it the expected behavior for the 2020 ones?
Thanks for your help,
Guillaume