Difference between revisions of "AS1531"
From ArmadeusWiki
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<pre class="host"> | <pre class="host"> | ||
| − | + | [ ] $ make linux26-menuconfig | |
</pre> | </pre> | ||
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[*] SPI support ---> | [*] SPI support ---> | ||
[*] CSPI3 | [*] CSPI3 | ||
| + | </pre> | ||
| + | |||
| + | Then compile the distribution : | ||
| + | <pre class="host"> | ||
| + | [ ] $ make linux26;make | ||
</pre> | </pre> | ||
Revision as of 09:46, 19 August 2010
Introduction
AS1531 is a 8 channels 12bits analog do digital converter made by Austriamicrosystem. The driver is included in ARMadeus distribution, but not currently on ARMadeus board.
Soldering
AS1531 chip use a SPI bus to communicate with the microprocessor, then to use it on APFx board it must be solder on a SPI bus. For example on APF27-Dev board it can be soldered on SPI3 bus, that can be found on connector J8.
| J8 pin | AS1531 pin |
|---|---|
| SD1_D0_SPI3_MISO | DOUT |
| SD1_D3_SPI3_SS | CSN |
| SD1_CMD_SPI3_MOSI | DIN |
| SP1_CLK_SPI3_SCLK | SCLK |
Driver
The driver is included in ARMadeus distribution, then to use it, select it :
[ ] $ make linux26-menuconfig
Device Drivers --->
<M> Hardware Monitoring support --->
<M> Austria Microsystems AS1531 Analog to Digital Converter
And if the chip is plugged on SPI3 don't forget to select it :
Device Drivers --->
[*] SPI support --->
[*] CSPI3
Then compile the distribution :
[ ] $ make linux26;make
Linux specific module
/* TODO */
