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MOD-MRF24J40/en: различия между версиями
Новая страница: «==Ссылки== * [https://www.olimex.com/Products/Modules/RF/MOD-MRF24J40/resources/MOD-MRF24J40-schematic.pdf schematic circuit ] * [https://www.olimex.com/Pro…»
(Новая страница: «The easiest way to do this is to short-circuit (e.g. solder) the legs 4 and 6 on the UEXT plug of the module.») |
(Новая страница: «==Ссылки== * [https://www.olimex.com/Products/Modules/RF/MOD-MRF24J40/resources/MOD-MRF24J40-schematic.pdf schematic circuit ] * [https://www.olimex.com/Pro…») |
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| (не показано 9 промежуточных версий этого же участника) | |||
| Строка 26: | Строка 26: | ||
The easiest way to do this is to short-circuit (e.g. solder) the legs 4 and 6 on the UEXT plug of the module. | The easiest way to do this is to short-circuit (e.g. solder) the legs 4 and 6 on the UEXT plug of the module. | ||
== | ==Settings== | ||
The driver of the transceiver in the kernel [https://github.com/contactless/linux/blob/v3.12-rc3-imxv5-x0.3/drivers/net/ieee802154/mrf24j40.c]. Minor changes were added to the driver to operate in half-duplex mode for SPI and in Device Tree. The driver is included in the default image as a module. | |||
To connect the module, you must declare the device in [[Device Tree/en]]: | |||
<pre> | <pre> | ||
| Строка 38: | Строка 38: | ||
&gpio2 28 0 | &gpio2 28 0 | ||
&gpio1 20 0 | &gpio1 20 0 | ||
&gpio2 27 0 /* 91 25 @ CON2 UEXT2 CS/GPIO */ <-------- Chip Select | &gpio2 27 0 /* 91 25 @ CON2 UEXT2 CS/GPIO */ <-------- Chip Select of UEXT2 connector corresponds to device number 6(2+4) | ||
>; | >; | ||
........ | |||
6lowpan@0 { | 6lowpan@0 { | ||
| Строка 48: | Строка 48: | ||
spi-max-frequency = <100000>; | spi-max-frequency = <100000>; | ||
reg = <6>; | reg = <6>; | ||
interrupt-parent = <&gpio1>; <-------- | interrupt-parent = <&gpio1>; <-------- use GPIO 53 (21 + 32) в качестве IRQ | ||
interrupts = <21 0>; <-------- | interrupts = <21 0>; <-------- It corresponds to output number of the 6 of the UEXT2 connector | ||
}; | }; | ||
........ | |||
| Строка 60: | Строка 60: | ||
== | ==Working with 6LoWPAN== | ||
Install packages to work with 6LoWPAN: | |||
<pre> | <pre> | ||
| Строка 68: | Строка 68: | ||
Work with 6LoWPAN is performed using the utility <b>iz</b> | |||
<pre> | <pre> | ||
| Строка 78: | Строка 78: | ||
You need the lowpan-tools package from sid to work | |||
==Ссылки== | ==Ссылки== | ||
* [https://www.olimex.com/Products/Modules/RF/MOD-MRF24J40/resources/MOD-MRF24J40-schematic.pdf | * [https://www.olimex.com/Products/Modules/RF/MOD-MRF24J40/resources/MOD-MRF24J40-schematic.pdf schematic circuit ] | ||
* [https://www.olimex.com/Products/Modules/RF/MOD-MRF24J40/ | * [https://www.olimex.com/Products/Modules/RF/MOD-MRF24J40/ | ||