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| Both sides previous revision Previous revision Next revision | Previous revision | ||
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en:xu3_hardware_adc [2016/01/22 10:12] john1117 [Using mmap] |
en:xu3_hardware_adc [2016/12/19 16:03] charles.park [Using mmap] |
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| Line 21: | Line 21: | ||
| ===== Using mmap ===== | ===== Using mmap ===== | ||
| - | Example c source code | + | Example C source code to access the ADC. |
| <file c mmap_adc.c> | <file c mmap_adc.c> | ||
| #include <stdio.h> | #include <stdio.h> | ||
| Line 28: | Line 28: | ||
| #include <stdint.h> | #include <stdint.h> | ||
| - | /* EXYNOS4412/5250 ADC_V1 registers definitions */ | + | /* EXYNOS ADC_V1 registers definitions */ |
| #define ADC_V1_DATAX 0x0C | #define ADC_V1_DATAX 0x0C | ||
| Line 84: | Line 84: | ||
| { | { | ||
| // End of A/D conversion | // End of A/D conversion | ||
| - | if (*(adc + (ADC_V2_STAT >> 2)) && 4) { | + | if (*(adc + (ADC_V2_STAT >> 2)) & 4) { |
| /* Read value */ | /* Read value */ | ||
| if (channel == 0x0) { | if (channel == 0x0) { | ||
