stratix 10 PMBUS's issue

[smile123]

Hi,everyone.

     The circuit board of the 1SX110HN chip we designed ourselves is not connected to the I2C of PMBUS, and other DC-DC chips are used for power supply. Now downloading the SOF file, the following error occurs:

Error(18950): Device has stopped receiving configuration data
Error(18948): Error message received from device: External hardware access error. (Subcode 0x0032, Info 0x00040008, Location 0x00001800)
Error(22248): Detected a PMBUS error during configuration. Potential errors: VID setting is incorrect in the Intel Quartus Prime project. The target device fails to communicate to a smart regulator or PMBUS master on a board.

eg：Is it necessary to connect to the PMBUS bus, and can other DC-DC chips without I2C configuration be used？

[FvM · Accepted solution]

Hi,

the full device name tells if you are using a V (SmartVID) or L or X (fixed voltage) type, most likely the former.

Power management guide tells:

Intel Stratix 10 standard power devices (–1V, –2V, –3V power grade) are SmartVID devices. The core voltage supplies (VCC and VCCP) for each SmartVID device must be driven by a PMBus-compliant voltage regulator dedicated to the Intel Stratix 10 –V device that is connected to that Intel Stratix 10 device via PMBus. For Intel Stratix 10 standard power devices, use of a PMBus-compliant voltage regulator for each device is mandatory. Intel Stratix 10 devices will not configure or function correctly if the core voltage is driven by a non-PMBus compliant regulator with a fixed output voltage.

Frank

[smile123]

Ok,thank you.

[smile123]

Hi,i have a issue now,my board have no PMBUS's voltage regulator for fpga,but the PMBUS_SCL and PMBUS_SDA is connected to the the PMBUS of the stm32l071 device. Now,i would like to know if the following two methods are feasible:

    1.config device vid mode of operation is PMBUS Master,and the stm32l071 is PMBUS Slave.

    2. config device vid mode of operation is PMBUS Slave,and the stm32l071 is PMBUS Master.

[FvM]

Operation of SmartVID supply is explained in detail in power managment guide, particularly its purpose is well explained. Obviously S10 can't achieve full performance without utilizing this feature. If your target is limited test operation with reduced performance, you should be able to fake regulator PMBUS function with STM32. Be aware that S10 may overheat under circumstances.

[smile123]

So is it possible to use all power modules with PMBUS protocol, or is it necessary to use Intel's own power modules？

[Ash_R_Intel]

Hi,

I understand that you query has been majorly answered by community member and the solution is already accepted.

On your query on the power modules, any PMBUS compliant voltage regulator that satisfies the following checklist can be used with Altera SmartVID based FPGAs.

1. Intel® Stratix® 10 and Intel Agilex® 7 SmartVID Debug Checklist...

Regards