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en:xu3_hardware_adc [2016/01/21 18:01] john1117 [Register Map Summary] |
en:xu3_hardware_adc [2016/01/21 18:19] john1117 |
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| Line 8: | Line 8: | ||
| | 23 | ADC_0.AIN3 | XADC0AIN_3 | | | 23 | ADC_0.AIN3 | XADC0AIN_3 | | ||
| - | ==== Using sysfs ==== | + | ===== Using sysfs ===== |
| Read raw data.(ADC Channel 0) | Read raw data.(ADC Channel 0) | ||
| Line 19: | Line 19: | ||
| **Input voltage range is 0~1.8Volt. Otherwise your ODROID will be damaged permanently.** | **Input voltage range is 0~1.8Volt. Otherwise your ODROID will be damaged permanently.** | ||
| - | ==== Using mmap ==== | + | ===== Using mmap ===== |
| Example c source code | Example c source code | ||
| Line 107: | Line 107: | ||
| } | } | ||
| </file> | </file> | ||
| - | ===== Register Map Summary ===== | + | ==== Register Map Summary ==== |
| - | **Register Map Summary** | + | |
| * Base Address : 0x12D1_0000 | * Base Address : 0x12D1_0000 | ||
| Line 136: | Line 135: | ||
| **ADC_CON2** | **ADC_CON2** | ||
| + | |||
| + | * Base Address: 0x12D1_0000 | ||
| + | * Address = Base Address + 0x0004, Reset Value = 0x0000_0720 | ||
| + | |||
| ^Name^Bit^Type^Description^Reset Value^ | ^Name^Bit^Type^Description^Reset Value^ | ||
| |RSVD|[31:11|R|Reserved(read as zero, do not modify)|0x0| | |RSVD|[31:11|R|Reserved(read as zero, do not modify)|0x0| | ||
| Line 147: | Line 150: | ||
| |:::|:::|:::|0x0 = 30 KSPS conversion rate|:::| | |:::|:::|:::|0x0 = 30 KSPS conversion rate|:::| | ||
| |:::|:::|:::|0x1 = 600 KSPS conversion rate (recommended)|:::| | |:::|:::|:::|0x1 = 600 KSPS conversion rate (recommended)|:::| | ||
| + | |RSVD|[7]|R|Reserved (read as zero, do not modify)|0x0| | ||
| + | |C_TIME|[6:4]|RW|Selection of the ADC conversion mode|0x2| | ||
| + | |:::|:::|:::|0x0 = 1 times conversion to get the data|:::| | ||
| + | |:::|:::|:::|0x1 = 2 times conversion|:::| | ||
| + | |:::|:::|:::|0x2 = 4 times conversion|:::| | ||
| + | |:::|:::|:::|0x3 = 8 times conversion|:::| | ||
| + | |:::|:::|:::|0x4 = 16 times conversion|:::| | ||
| + | |:::|:::|:::|0x5 = 32 times conversion|:::| | ||
| + | |:::|:::|:::|0x6 = 64 times conversion|:::| | ||
| + | |:::|:::|:::|NOTE: ADC_DAT register is updated on an average with a sum after 1, 2, 4, 8, 16, 32 or 64 times conversion.|:::| | ||
| + | |ACH_SEL|[3:0]|RW|Analog input channel selection|0x0| | ||
| + | |:::|:::|:::|0x0 = Channel 0|:::| | ||
| + | |:::|:::|:::|0x1 = Channel 1|:::| | ||
| + | |:::|:::|:::|0x2 = Channel 2|:::| | ||
| + | |:::|:::|:::|0x3 = Channel 3|:::| | ||
| + | |:::|:::|:::|0x4 = Channel 4|:::| | ||
| + | |:::|:::|:::|0x5 = Channel 5|:::| | ||
| + | |:::|:::|:::|0x6 = Channel 6|:::| | ||
| + | |:::|:::|:::|0x7 = Channel 7|:::| | ||
| + | |:::|:::|:::|0x8 = Channel 8|:::| | ||
| + | |:::|:::|:::|0x9 = Channel 9|:::| | ||
| + | |:::|:::|:::|0xA to 0xF = Reserved|:::| | ||
| **ADC_STATUS** | **ADC_STATUS** | ||
| + | |||
| + | * Base Address: 0x12D1_0000 | ||
| + | * Address = Base Address + 0x00048, Reset Value = 0x0000_0000 | ||
| + | |||
| ^Name^Bit^Type^Description^Reset Value^ | ^Name^Bit^Type^Description^Reset Value^ | ||
| + | |RSVD|[31:3]|R|Reserved (read as zero, do not modify)|0x0| | ||
| + | |FLAG|[2]|R|End of conversion flag|-| | ||
| + | |:::|:::|:::|0x0 = A/D conversion in process|:::| | ||
| + | |:::|:::|:::|0x1 = End of A/D conversion|:::| | ||
| + | |RSVD|[1:0]|R|Reserved (read as zero, do not modify)|0x0| | ||
| **ADC_DAT** | **ADC_DAT** | ||
| + | |||
| + | * Base Address: 0x12D1_0000 | ||
| + | * Address = Base Address + 0x000C, Reset Value = 0x0000_0000 | ||
| + | |||
| ^Name^Bit^Type^Description^Reset Value^ | ^Name^Bit^Type^Description^Reset Value^ | ||
| + | |RSVD|[31:12]|R|Reserved (read as zero, do not modify)|0x0| | ||
| + | |ADCDAT|[11:0]|R|ADC conversion data value (0x000 to 0xFFF)|-| | ||
| **ADC_INT_EN** | **ADC_INT_EN** | ||
| + | |||
| + | * Base Address: 0x12D1_0000 | ||
| + | * Address = Base Address + 0x0010, Reset Value = 0x0000_0000 | ||
| + | |||
| ^Name^Bit^Type^Description^Reset Value^ | ^Name^Bit^Type^Description^Reset Value^ | ||
| + | |RSVD|[31:1]|R|Reserved (read as zero, do not modify)|0x0| | ||
| + | |INT_EN|[0]|RW|0x0 = Disables interrupt|0x0| | ||
| + | |:::|:::|:::|0x1 = Enables interrupt|:::| | ||
| **ADC_INT_STATUS** | **ADC_INT_STATUS** | ||
| + | |||
| + | * Base Address: 0x12D1_0000 | ||
| + | * Address = Base Address + 0x0014, Reset Value = 0x0000_0000 | ||
| + | |||
| ^Name^Bit^Type^Description^Reset Value^ | ^Name^Bit^Type^Description^Reset Value^ | ||
| + | |RSVD|[31:1]|R|Reserved (read as zero, do not modify)|0x0| | ||
| + | |INT_STATUS|[0]|RW|When Read|0x0| | ||
| + | |:::|:::|:::|0x0 = Interrupt is not generated|:::| | ||
| + | |:::|:::|:::|0x1 = Interrupt is generated|:::| | ||
| + | |:::|:::|:::|When Write|:::| | ||
| + | |:::|:::|:::|0x0 = No action|:::| | ||
| + | |:::|:::|:::|0x1 = This bit is cleared|:::| | ||
| + | |||
| **ADC_VERSION** | **ADC_VERSION** | ||
| + | |||
| + | * Base Address: 0x12D1_0000 | ||
| + | * Address = Base Address + 0x0020, Reset Value = 0x8000_0008 | ||
| + | |||
| ^Name^Bit^Type^Description^Reset Value^ | ^Name^Bit^Type^Description^Reset Value^ | ||
| + | |ADC_VERSION_INFO|[31:0]|R|ADC Version Information|0x8000_0008| | ||
