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[avr-libc-dev] [bug #30552] Missing definition ADCW
From: |
Anitha Boyapati |
Subject: |
[avr-libc-dev] [bug #30552] Missing definition ADCW |
Date: |
Wed, 22 Sep 2010 06:51:53 +0000 |
User-agent: |
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.13) Gecko/20100914 Firefox/3.5.13 |
Follow-up Comment #2, bug #30552 (project avr-libc):
For device ATTiny43U:
the patch given for bug30569 defines ADC and ADCW to 0x04 (using _SFR_MEM16
macro) while datasheet clearly says that address of ADCL is 0x24 and that of
ADCH is 0x25.
The following diff uses _SFR_IO16 instead of _SFR_MEM16. _SFR_IO16 adds an
offset of 0x20. I think this is appropriate.
Index: iotn43u.h
===================================================================
--- iotn43u.h (revision 2184)
+++ iotn43u.h (working copy)
@@ -74,7 +74,10 @@
#define ADLAR 4
#define ACME 6
+#ifndef _ASSEMBLER_
#define ADC _SFR_IO16(0x04)
+#endif
+#define ADCW _SFR_IO16(0x04)
#define ADCL _SFR_IO8(0x04)
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