URL:
<http://savannah.nongnu.org/bugs/?26811>
Summary: MUXNEG defines wrong for ADC_CH.MUXCTRL
Project: AVR C Runtime Library
Submitted by: hoxel
Submitted on: Mo 15 Jun 2009 20:39:43 GMT
Category: Header
Severity: 3 - Normal
Priority: 5 - Normal
Item Group: Header files
Status: None
Percent Complete: 0%
Assigned to: None
Open/Closed: Open
Discussion Lock: Any
Release: 1.7.*
Fixed Release: None
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Details:
file: include/avr/iox128a1.h
MUXNEG is only [1:0] two bits size
/* Negative input multiplexer selection */
typedef enum ADC_CH_MUXNEG_enum
{
ADC_CH_MUXNEG_PIN0_gc = (0x00<<0), /* Input pin 0 */
ADC_CH_MUXNEG_PIN1_gc = (0x01<<0), /* Input pin 1 */
ADC_CH_MUXNEG_PIN2_gc = (0x02<<0), /* Input pin 2 */
ADC_CH_MUXNEG_PIN3_gc = (0x03<<0), /* Input pin 3 */
//old ADC_CH_MUXNEG_PIN4_gc = (0x04<<0), /* Input pin 4 */
//old ADC_CH_MUXNEG_PIN5_gc = (0x05<<0), /* Input pin 5 */
//old ADC_CH_MUXNEG_PIN6_gc = (0x06<<0), /* Input pin 6 */
//old ADC_CH_MUXNEG_PIN7_gc = (0x07<<0), /* Input pin 7 */
ADC_CH_MUXNEG_PIN4_gc = (0x00<<0), /* Input pin 4 */
ADC_CH_MUXNEG_PIN5_gc = (0x01<<0), /* Input pin 5 */
ADC_CH_MUXNEG_PIN6_gc = (0x02<<0), /* Input pin 6 */
ADC_CH_MUXNEG_PIN7_gc = (0x03<<0), /* Input pin 7 */
} ADC_CH_MUXNEG_t;
may be nobody found this bug cause bit2 in MUXCTRL is reserved and not used
up to now.
see xmega_a.pdf page 309 for more information
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