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The Virtual COM port project is a demo program for CP-JR ARM7 LPC2368 Board |
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using the Philips LPC2368 Microcontroller. |
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It demonstrates an USB Virtual COM port based on a Windows USB host |
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driver (usbser.sys). |
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The PC will install a virtual COM port on the PC (see Driver Installation). |
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After installation an additional port "LPC2368 USB VCom Port(COMx)" |
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can be found under System/Hardware/Device Manager/Ports(COM&LPT). |
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Number "x" is not fixed as different PC configuration may have different |
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"x" displayed on the device manager. The USB host driver assigns "x" |
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dynamically based on the existing COM port configuration of the system. |
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Testing the USB Virtual COM port with serial cable: |
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Open two Hyperterminal windows. |
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One with "LPC2368 USB VCom Port(COMx)" |
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One with "Communications Port (UART-0)". |
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Connect PC port COM1 to LPC2368 UART-0 and open "COM1" and "COMx". |
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Data from UART-0 will be echoed on "COMx" and visa versa. |
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So, this is bi-directional communication between the physical UART-0 |
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on LPC2368 and the virtual COM port COMx on host PC. |
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The Virtual COM Port program is available for the following targets: |
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LPC2368: configured for on-chip Flash ROM |
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(used for production or target debugging) |
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Note: set jumper J11 to [12]3 (jumper towards JTAG connector) |
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for USB soft connect |
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Driver Installation: |
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-------------------- |
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"Welcome to the Found New Hardware Wizard" appears |
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- select 'No, not this time' |
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- press 'Next' |
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- select 'Install from a list or specific location (Advanced)' |
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- press 'Next' |
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- select 'Search for the best driver in these locations' |
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- check 'include this location in the serach' |
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- set to <project folder> |
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- press 'Next' |
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"Hardware Installation" appears |
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"has not passed Windows Logo testing..." |
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- press 'Continue Anyway' |
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"Completing the Found New Hardware Wizard" appears |
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- press 'Finish' |
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