The specific description is as follows:
1. First, set c6657 as PCIe boot mode startup, and RBL program will automatically initialize PCIe parameters;
2. The PC successfully enumerates c6657 PCIe devices, and can normally read and write to PCIe devices;
3. Use CCS or PCIe booting to load the program into memory again;
4. The loaded program wants to modify the configuration parameters of PCIe again. Here, it mainly wants to change the bar size set by RBL;
Is it feasible? I have made some attempts myself, and the following situations will occur:
01. After the loading program runs, PCIe cannot establish communication and cannot be used;
02. After the loader runs, PCIe can be used normally, but it fails in the process of reconfiguring PCIe;
Is this method feasible? What should I pay attention to when reconfiguring PCIe?
Thanks
