This version (10 Feb 2021 04:44) was approved by Robin Getz.The Previously approved version (12 Sep 2014 10:02) is available.
Linux Drivers
Analog Devices uses six designations to inform our customers where a semiconductor product is in its life cycle. From emerging innovations to products which have been in production for twenty years, we understand that insight into life cycle status is important. Device life cycles are tracked on their individual product pages on analog.com, and should always be consulted before making any design decisions.
This particular articl/edocument/design has been retired or deprecated, which means it is no longer maintained or actively updated, even though the devices themselves may be Recommended for New Designs or in Production. This page is here for historical/reference purposes only.
The Linux Industrial I/O (IIO) subsystem is intended to provide support for devices that, in some sense, are analog-to-digital or digital-to-analog converters. Devices that fall into this category are:
- ADCs - can be used on ADCs ranging from a 1MSPS SoC ADC to >250 MSPS industrial ADCs
- DACs
- Accelerometers, gyros, IMUs
- Capacitance-to-Digital converters (CDCs)
- Pressure, temperature, and light sensors, etc.
- RF Transceivers (like the AD9361)
The IIO Divers for the motor control solution require the HDL cores to have a specified register map. A DMA interface is set up for high speed data transfer using multiple multiplexed data channels. Below is the list of IIO drivers for the motor control solution.
| IIO DriverName | Description | Channels |
|---|---|---|
| ad-mc-adc | Driver for the controller board ADCs | CH1 - Ia measurement CH2 - Ib measurement CH3 - It measurement CH4 - Vbus measurement |
| ad-mc-adc2 | Driver for the low voltage drive board ADCs | CH1 - Ia measurement CH2 - Ib measurement CH3 - It measurement |
| ad-mc-speed | Driver for the speed and position processing block | CH1 - Speed measurement |
| ad-mc-ctrl | Driver for the motor controller block | CH1 : CH8 - Controller monitoring signals |
Each IIO driver has in the device tree and entry related to the actual driver and an entry corresponding to the allocated DMA. Below is an example of how the device tree looks for the motor control IIO drivers.
ad-mc-adc@40500000 {
compatible = "xlnx,axi-ad-mc-adc-1.00.a";
reg = <0x40500000 0x10000>;
dmas = <&axi_dma_0 0>;
dma-names = "ad-mc-adc-dma";
};
axi_dma_1: axidma1@40420000 {
compatible = "adi,axi-dmac-1.00.a";
reg = <0x40420000 0x10000>;
#dma-cells = <1>;
interrupts = <0 54 0>;
clocks = <&clkc 16>;
dma-channel {
adi,buswidth = <32>;
adi,type = <0>;
};
};
ad-mc-ctrl@40520000 {
compatible = "xlnx,axi-ad-mc-ctrl-1.00.a";
reg = <0x40520000 0x10000>;
dmas = <&axi_dma_1 0>;
dma-names = "ad-mc-ctrl-dma";
};
axi_dma_2: axidma2@40410000 {
compatible = "adi,axi-dmac-1.00.a";
reg = <0x40410000 0x10000>;
#dma-cells = <1>;
interrupts = <0 56 0>;
clocks = <&clkc 16>;
dma-channel {
adi,buswidth = <32>;
adi,type = <0>;
};
};
ad-mc-speed@40510000 {
compatible = "xlnx,axi-ad-mc-speed-1.00.a";
reg = <0x40510000 0x10000>;
dmas = <&axi_dma_2 0>;
dma-names = "ad-mc-speed-dma";
};
axi_dma_3: axidma3@40430000 {
compatible = "adi,axi-dmac-1.00.a";
reg = <0x40430000 0x10000>;
#dma-cells = <1>;
interrupts = <0 53 0>;
clocks = <&clkc 16>;
dma-channel {
adi,buswidth = <64>;
adi,type = <0>;
};
};
ad-mc-adc2@40530000 {
compatible = "xlnx,axi-ad-mc-adc-1.00.a";
reg = <0x40530000 0x10000>;
dmas = <&axi_dma_3 0>;
dma-names = "ad-mc-adc-dma";
};
Navigation - AD-FMCMOTCON1-EBZ
Up: Overview
resources/eval/user-guides/ad-fmcmotcon1-ebz/software/linux_drivers.txt · Last modified: 10 Feb 2021 04:44 by Robin Getz