我正致力于在为MPC83xx从2.6.22到2.6.26构建的linux内核上移植一个自定义的CPLD驱动程序,并且收到了一个意外的Oops。这个驱动程序在.22内核上工作得很好,但是.26内核在我对request_irq的调用中阻塞了。有谁知道为什么行为会有变化,或者更好的是,我需要做些什么来解决这个问题?(cpld_virq);}
int retval;
unsigned long cpld<
We do not recommend the use of latches in FPGA/CPLD designs, as they may lead to timing problems.We do not recommend the use of latches in FPGA/CPLD designs, as they may lead to timing problems.We do not recommend the use of latches in FPGA/CPLD designs, as
When CPLD sees it is pulled low, it keeps pulling it low till the operation is finished
clk_out:continues here.... after the operation is finished, start_cmd <= 'Z' is "executed" 我有start_cmd信号连接到我的CPLD当另一个器件想要CPLD开始某些操作时,它会将start_cmd拉到低电平。当CP
我正在为Xilinx 6 PCIe定制板开发一个设备驱动程序。在执行DMA写入(从主机到设备)时,会发生以下情况:a. fill buffer with the following byte pattern (tested up to 16kB.. 05 CplD 128B c5. 4A000010CplD 64B <=
We do not recommend the use of latches in FPGA/CPLD designs, as they may lead to timing problems.We do not recommend the use of latches in FPGA/CPLD designs, as they may lead to timing problems.We do not recommend the use of latches in FPGA/CPLD designs, as