MPC8548 SRIO Nwrite Package Problems

取消
显示结果 
显示  仅  | 搜索替代 
您的意思是: 

MPC8548 SRIO Nwrite Package Problems

639 次查看
wl5684
Contributor II

When I analysis the package of the MPC8548 SRIO, I found it just can't send  complete Nwrite package. I use the DMA and don't bypass ATMU unit, I have set the WRTYP field of ROWARn as 0100(NWRITE). But when I capture the SRIO package of MPC8548, the type of the last package is Nwrite_R. It confused me. Can MPC 8548 send all of the package as type NWRITE(including the last package)? Can anyone give me some suggestion? Thanks!

标记 (4)
0 项奖励
回复
1 回复

473 次查看
ufedor
NXP Employee
NXP Employee

By design the DMA always issue NWRITE_R on the last payload of the DMA transfer. There is not a way to prevent this.

0 项奖励
回复