EDS QSPI programming problem

[Altera_Forum]

Hi, i’m using my custom Cyclone V SoC(5cseba5u19i7n) board in combination with QSPI flash (Micron 512Mbit). 

I want to program the NOR flash via USB blaster with SoC EDS Command Shell version 15.0.  When I start up the “SoC EDS Command Shell version 15.0”and type “quartus_hps.exe –c 1 –o PV ”.  After programming done ,I get the following  "1.send_access_data() error while accessing DP Register. 2.Debug Port Read Buffer reading failure, read_dp_buff() error while accessing AP Register.3.Failed to READ ACCESS to the Physical Reg. 4. Failed to read MPU Module Reset Register."  I was wondering the JTAG was not nomally working.  Thank you.

[Altera_Forum]

--- Quote Start ---  Hi, i’m using my custom Cyclone V SoC(5cseba5u19i7n) board in combination with QSPI flash (Micron 512Mbit). I want to program the NOR flash via USB blaster with SoC EDS Command Shell version 15.0.  When I start up the “SoC EDS Command Shell version 15.0”and type “quartus_hps.exe –c 1 –o PV ”.  After programming done ,I get the following  "1.send_access_data() error while accessing DP Register. 2.Debug Port Read Buffer reading failure, read_dp_buff() error while accessing AP Register.3.Failed to READ ACCESS to the Physical Reg. 4. Failed to read MPU Module Reset Register."  I was wondering the JTAG was not nomally working.  Thank you.  --- Quote End ---    I am having the same problem. Have you found a resolution?

[Altera_Forum]

Have you found an answer to this? I am also having the same issue (5CSEBA4U) 

Except mine says "Failed to release reset register of MPU"

[Altera_Forum]

Has anyone resolved this issue? 

 Thanks Kevin.