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| Both sides previous revisionPrevious revisionNext revision | Previous revisionLast revisionBoth sides next revision | ||
| resources:tools-software:linux-drivers:iio-accelerometer:adxl372 [05 Sep 2018 13:45] – Added new github links Stefan Popa | resources:tools-software:linux-drivers:iio-accelerometer:adxl372 [16 Sep 2019 15:58] – Updated the buffer management description Stefan Popa | ||
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| Line 20: | Line 20: | ||
| ^ Source ^ Mainlined? ^ | ^ Source ^ Mainlined? ^ | ||
| - | | [[linux.github>master/drivers/ | + | | [[git.linux.org> |
| ===== Files ===== | ===== Files ===== | ||
| ^ Function ^ File ^ | ^ Function ^ File ^ | ||
| - | | core driver | [[linux.github> | + | | core driver | [[linux.github> |
| - | | spi driver | [[linux.github> | + | | spi driver | [[linux.github> |
| - | | i2c driver | [[linux.github> | + | | i2c driver | [[linux.github> |
| - | | header | [[linux.github> | + | | header | [[linux.github> |
| + | | Documentation | [[linux.github> | ||
| + | | ABI documentation| [[linux.github> | ||
| - | ===== Devicetree | + | Example device tree |
| + | |||
| + | ^ Function ^ File ^ | ||
| + | | dts | [[linux.github> | ||
| + | |||
| + | ====== Example platform device initialization ====== | ||
| Required devicetree properties: | Required devicetree properties: | ||
| Line 94: | Line 101: | ||
| -r--r--r-- 1 root root 4096 Oct 25 04:25 name | -r--r--r-- 1 root root 4096 Oct 25 04:25 name | ||
| lrwxrwxrwx 1 root root 0 Oct 25 04:25 of_node -> ../ | lrwxrwxrwx 1 root root 0 Oct 25 04:25 of_node -> ../ | ||
| + | -r--r--r-- 1 root root 4096 Oct 25 04:25 peak_fifo_mode_enable | ||
| drwxr-xr-x 2 root root 0 Oct 25 04:25 power | drwxr-xr-x 2 root root 0 Oct 25 04:25 power | ||
| -r--r--r-- 1 root root 4096 Oct 25 04:25 sampling_frequency_available | -r--r--r-- 1 root root 4096 Oct 25 04:25 sampling_frequency_available | ||
| Line 175: | Line 183: | ||
| </ | </ | ||
| - | ===== Trigger management ===== | + | ===== Using the FIFO Buffer ===== |
| + | |||
| + | **Description: | ||
| + | The ADXL372 includes a deep, 512 sample FIFO buffer. The 512 FIFO samples can be allotted in several ways, such as the following: | ||
| + | * 170 sample sets of concurrent 3-axis data | ||
| + | * 256 sample sets of concurrent 2-axis data (user selectable) | ||
| + | * 512 sample sets of single-axis data | ||
| + | * 170 sets of impact event peak (x, y, z) | ||
| + | |||
| + | ==== Trigger management ==== | ||
| + | |||
| + | **Description: | ||
| + | The FIFO is configured in **Stream Mode** and **FIFO_FULL** interrupt is enabled. The interrupt will be triggered when the FIFO watermark is reached. | ||
| <WRAP box bggreen>< | <WRAP box bggreen>< | ||
| Line 183: | Line 203: | ||
| </ | </ | ||
| - | ===== Buffer management | + | ==== Buffer management ==== |
| **Description: | **Description: | ||
| Line 207: | Line 227: | ||
| Before enabling the buffer, a few steps need to be completed. | Before enabling the buffer, a few steps need to be completed. | ||
| - | * First, the axis that we want to read data from need to be enabled: | + | * For example, if we want the FIFO to store sample sets of concurrent 3-axis |
| <WRAP box bggreen>< | <WRAP box bggreen>< | ||
| < | < | ||
resources/tools-software/linux-drivers/iio-accelerometer/adxl372.txt · Last modified: 16 Sep 2019 16:09 by Stefan Popa