This function is called by a device driver to
enable the SPI chip select of the wireless device.
Files
net_bsp.c
Prototype
Note that since NetDev_WiFi_SPI_ChipSelEn()
is accessed only by function pointer via a BSP interface structure, it doesn’t need to be globally available and should therefore be declared as ‘static
’.
...
Required Configuration
None.
Notes / Warnings
- 1
NetDev_WiFi_SPI_ChipSelEn() should be called only after the SPI lock has been acquired by calling NetDev_WiFi_SPI_Lock()
. - 2 Since each network device requires a unique
NetDev_WiFi_SPI_ChipSelEn()
, it is recommended that each device’sNetDev_WiFi_SPI_ChipSelEn()
function be named using the following convention:
NetDev_WiFi_[Device]SPI_ChipSelEn[Number]()
[Device]
...
For example, the NetDev_WiFi_SPI_ChipSelEn()
function for the #2 RS9110 wireless device on an Atmel AT91SAM9263-EK should be named NetDev_WiFi_RS9110_SPI_ChipSelEn2()
, or NetDev_WiFi_RS9110_SPI_ChipSelEn_2()
with additional underscore optional.
See also Chapter 6, “Network section Network Board Support Package”Package.