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FPGA UPGRADING METHOD BASED ON PCIE INTERFACE
FPGA UPGRADING METHOD BASED ON PCIE INTERFACE
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机译：基于PCIe接口的FPGA升级方法
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摘要
An FPGA upgrade method is provided, including: delivering, by a host, an upgrade instruction to an FPGA; uninstalling, by the host, a PCIe driver corresponding to the FPGA, so that a status of the PCIe link is changed to link down; continuously monitoring, by the host in a first expiration time, whether the status of the PCIe link is changed to link up; and if yes, reloading the PCIe driver. The method further includes: after the FPGA receives the upgrade instruction, continuously monitoring, by the FPGA in a second expiration time, whether the status of the PCIe link is changed to link down, where link down is a status of the PCIe link after the host uninstalls the PCIe driver corresponding to the FPGA; if yes, loading, by the FPGA, the configuration data from the FPGA configuration memory for upgrade; and after upgrade is completed, negotiating, by the FPGA, with the host to restore the status of the PCIe link to link up that is used for reloading the PCIe driver upon detection by the host.
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