Content originally posted in LPCWare by Andre Schoeman on Tue Mar 29 00:25:05 MST 2011
[COLOR=#000000][FONT=Arial, sans-serif][SIZE=2]Hi[/SIZE][/FONT][/COLOR]
[COLOR=#000000][FONT=Arial, sans-serif][SIZE=2]I have an interesting problem with #defines.[/SIZE][/FONT][/COLOR]
[COLOR=#000000][FONT=Arial, sans-serif][SIZE=2]In the usbcdc project, I have changed the file usbcfg.h [/SIZE][/FONT][/COLOR]
[LEFT][COLOR=#000000][FONT=Arial, sans-serif][SIZE=2]#define USB_POWER_EVENT 1[/SIZE][/FONT][/COLOR]
[COLOR=#000000][FONT=Arial, sans-serif][SIZE=2]This should enable some code in usbuser.c.c and usbhw.c [/SIZE][/FONT][/COLOR]
[COLOR=#000000][FONT=Arial, sans-serif][SIZE=2]for example[/SIZE][/FONT][/COLOR]
[COLOR=#000000][FONT=Arial, sans-serif][SIZE=2]#if USB_POWER_EVENT[/SIZE][/FONT][/COLOR]
[COLOR=#000000][FONT=Arial, sans-serif][SIZE=2]void USB_Power_Event (uint32_t power)[/SIZE][/FONT][/COLOR]
[COLOR=#000000][FONT=Arial, sans-serif][SIZE=2]{[/SIZE][/FONT][/COLOR]
[COLOR=#000000][FONT=Arial, sans-serif][SIZE=2]USB_Connect(TRUE); // USB Connect[/SIZE][/FONT][/COLOR]
[COLOR=#000000][FONT=Arial, sans-serif][SIZE=2]while (!USB_Configuration); // wait until USB is configured[/SIZE][/FONT][/COLOR]
[COLOR=#000000][FONT=Arial, sans-serif][SIZE=2]}[/SIZE][/FONT][/COLOR]
[COLOR=#000000][FONT=Arial, sans-serif][SIZE=2]#endif[/SIZE][/FONT][/COLOR]
[COLOR=#000000][FONT=Arial, sans-serif][SIZE=2]When USB_POWER_EVENT is 0 then these bits of code are greyed(purple) out.[/SIZE][/FONT][/COLOR]
[COLOR=#000000][FONT=Arial, sans-serif][SIZE=2]When USB_POWER_EVENT is changed from 0 to 1 the background colour should turn white indicating that the code is once again part of the application and will be compiled.[/SIZE][/FONT][/COLOR]
[COLOR=#000000][FONT=Arial, sans-serif][SIZE=2]This colour change is however not happening and the code appears not to be compiled.[/SIZE][/FONT][/COLOR]
[COLOR=#000000][FONT=Arial, sans-serif][SIZE=2]I have checked the following,[/SIZE][/FONT][/COLOR]
[COLOR=#000000][FONT=Arial, sans-serif][SIZE=2]I have removed the original USBCDC example code just in case my project is referencing the wrong file. I even renamed the USBCDC folder to be sure. [/SIZE][/FONT][/COLOR]
[COLOR=#000000][FONT=Arial, sans-serif][SIZE=2]I've created examples of how this should work and it does.[/SIZE][/FONT][/COLOR]
[COLOR=#000000][FONT=Arial, sans-serif][SIZE=2]I've searched for additional #defines of USB_POWER_EVENT but can't find any.[/SIZE][/FONT][/COLOR]
[COLOR=#000000][FONT=Arial, sans-serif][SIZE=2]I also renamed the function USB_Power_Event as it has the same name as the #define though this should not make a difference.[/SIZE][/FONT][/COLOR]
[COLOR=#000000][FONT=Arial, sans-serif][SIZE=2]I can obviously just discard the #if #endif completely, but I'd still like to know what the underlying problem is.[/SIZE][/FONT][/COLOR]
[FONT=Arial][SIZE=2]Has anybody seen anything like this?[/SIZE][/FONT][/LEFT]
[FONT=Arial][SIZE=2][SIZE=2]Version: LPCXpresso v3.6.2 [Build 279] [29/01/2011]
[/SIZE][/SIZE][/FONT][LEFT][FONT=Arial][SIZE=2]Andre
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