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NRF905 is a single chip radio transceiver for the 433/868/915MHz ISM band. The transceiver consists of a fully integrated frequency synthesizer, receiver chain with demodulator, a power amplifier, a crystal oscillator and, a modulator. The ShockBurst™ feature automatically handles preamble and CRC. You can easily configure the nRF905 through the SPI. Current consumption is very low, in transmit only 9mA at an output power of -10dBm, and in receive mode 12.5mA. Built-in power down modes makes power saving easily realizable.NRF905 is used in wireless data communication, alarm security system, home automation, remote control and so on.
LibDriver NRF905 is the full function driver of NRF905 launched by LibDriver.It provides functions of wireless senting, wireless receiving, etc. LibDriver is MISRA compliant.
/src includes LibDriver NRF905 source files.
/interface includes LibDriver NRF905 SPI platform independent template.
/test includes LibDriver NRF905 driver test code and this code can test the chip necessary function simply.
/example includes LibDriver NRF905 sample code.
/doc includes LibDriver NRF905 offline document.
/datasheet includes NRF905 datasheet.
/project includes the common Linux and MCU development board sample code. All projects use the shell script to debug the driver and the detail instruction can be found in each project's README.md.
/misra includes the LibDriver MISRA code scanning results.
Reference /interface SPI platform independent template and finish your platform SPI driver.
Add the /src directory, the interface driver for your platform, and your own drivers to your project, if you want to use the default example drivers, add the /example directory to your project.
You can refer to the examples in the /example directory to complete your own driver. If you want to use the default programming examples, here's how to use them.
#include "driver_nrf905_basic.h"
uint8_t (*g_gpio_irq)(void) = NULL;
uint8_t res;
uint8_t addr[4] = NRF905_BASIC_DEFAULT_RX_ADDR;
char data[] = "libdriver";
...
static void a_callback(uint8_t type, uint8_t *buf, uint8_t len)
{
switch (type)
{
case NRF905_STATUS_AM :
{
nrf905_interface_debug_print("nrf905: address match.\n");
break;
}
case NRF905_STATUS_TX_DONE :
{
nrf905_interface_debug_print("nrf905: tx done.\n");
break;
}
case NRF905_STATUS_RX_DONE :
{
uint8_t i;
nrf905_interface_debug_print("nrf905: irq receive with length %d.\n", len);
for (i = 0; i < len; i++)
{
nrf905_interface_debug_print("%c", buf[i]);
}
nrf905_interface_debug_print(".\n");
break;
}
default :
{
nrf905_interface_debug_print("nrf905: unknown code.\n");
break;
}
}
}
...
res = gpio_interrupt_init();
if (res != 0)
{
return 1;
}
g_gpio_irq = nrf905_interrupt_irq_handler;
res = nrf905_basic_init(NRF905_MODE_TX, a_callback);
if (res != 0)
{
(void)gpio_interrupt_deinit();
g_gpio_irq = NULL;
return 1;
}
...
if (nrf905_basic_sent((uint8_t *)addr, (uint8_t *)data, (uint8_t)strlen(data)) != 0)
{
(void)nrf905_basic_deinit();
(void)gpio_interrupt_deinit();
g_gpio_irq = NULL;
}
...
if (nrf905_basic_deinit() != 0)
{
(void)gpio_interrupt_deinit();
g_gpio_irq = NULL;
}
(void)gpio_interrupt_deinit();
g_gpio_irq = NULL;
...
return 0;#include "driver_nrf905_basic.h"
uint8_t (*g_gpio_irq)(void) = NULL;
uint8_t res;
uint32_t timeout;
uint8_t addr[4] = NRF905_BASIC_DEFAULT_RX_ADDR;
...
static void a_callback(uint8_t type, uint8_t *buf, uint8_t len)
{
switch (type)
{
case NRF905_STATUS_AM :
{
nrf905_interface_debug_print("nrf905: address match.\n");
break;
}
case NRF905_STATUS_TX_DONE :
{
nrf905_interface_debug_print("nrf905: tx done.\n");
break;
}
case NRF905_STATUS_RX_DONE :
{
uint8_t i;
nrf905_interface_debug_print("nrf905: irq receive with length %d.\n", len);
for (i = 0; i < len; i++)
{
nrf905_interface_debug_print("%c", buf[i]);
}
nrf905_interface_debug_print(".\n");
break;
}
default :
{
nrf905_interface_debug_print("nrf905: unknown code.\n");
break;
}
}
}
...
timeout = 5000;
res = gpio_interrupt_init();
if (res != 0)
{
return 1;
}
g_gpio_irq = nrf905_interrupt_irq_handler;
res = nrf905_basic_init(NRF905_MODE_RX, a_callback);
if (res != 0)
{
(void)gpio_interrupt_deinit();
g_gpio_irq = NULL;
return 1;
}
...
nrf905_interface_delay_ms(timeout);
...
if (nrf905_basic_deinit() != 0)
{
(void)gpio_interrupt_deinit();
g_gpio_irq = NULL;
}
(void)gpio_interrupt_deinit();
g_gpio_irq = NULL;
...
return 0;Online documents: https://www.libdriver.com/docs/nrf905/index.html.
Offline documents: /doc/html/index.html.
Please refer to CONTRIBUTING.md.
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