- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hello,
today I tried a simple example to read a pin into status register and failed at build time.
*** ERROR L127: UNRESOLVED EXTERNAL SYMBOL
SYMBOL: Status_Read
MODULE: .\DP8051\DP8051_Keil_951\Debug\main.obj (MAIN)
*** ERROR L128: REFERENCE MADE TO UNRESOLVED EXTERNAL
SYMBOL: Status_Read
MODULE: .\DP8051\DP8051_Keil_951\Debug\main.obj (MAIN)
ADDRESS: 100075DH
Program Size: data=14.0 xdata=96 const=40 code=1950
The command 'LX51.exe' failed with exit code '2'.
Well, the Fitter tells
ADD: mpr.M0037: information: Unused pieces of the design have been optimized out. See the Tech mapping section of the report file for details.
where the report file doesn't give any new/more informations to me. In deed, the generated Status.c contains
#if !defined(Status_sts_sts_reg__REMOVED) /* Check for removal by optimization */
...
uint8 Status_Read(void)
{
return Status_Status;
}
...
where cyfitter.h holds:
/* Status */
#define Status_sts_sts_reg__REMOVED 1u
All this explains the problem faced me but doesn't solve it since is problem is related to code generation stage ... A documentation search also doesn't brought more clearity.
So, where is a check mark and documentation about those optimization? Optmization on hardware level is a good thing (obvioulsy happened here) but the software is forgotten - how to fix it?
Thanks!
Solved! Go to Solution.
- Labels:
-
PSoC Creator Software
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hi,
You should connect Pin in this way to the status Register in order to read the pin status via status register:
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hi,
You should connect Pin in this way to the status Register in order to read the pin status via status register:
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Ah, damn - the pin wasn't connected properly .... Thanks!