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RPi SPI functionality and RPi fix for startWrite

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- Enabled use of hardware CS1 pin
- Removed custom_cs code for software driven CSN
- Modified BCM driver to allow use of hardware SPI pins not in use while
SPI is active.
- Updated constructor in examples
This commit is contained in:
TMRh20
2014-04-25 19:38:08 -06:00
parent cd8bb19dc3
commit 6530f954a1
10 changed files with 376 additions and 398 deletions
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RPi/readme.md
+17 -8
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@@ -75,24 +75,33 @@ Connection Info
Using pin 15/GPIO 22 for CE, pin 24/GPIO8 (CE0) for CSN
Can use either RPi CE0 or CE1 pins for radio CSN.
Choose any RPi output pin for radio CE pin.
**Constructor:**
```
RF24 radio(RPI_V2_GPIO_P1_15,BCM2835_SPI_CS0, BCM2835_SPI_SPEED_8MHZ);
or
RF24 radio(RPI_V2_GPIO_P1_15,BCM2835_SPI_CS1, BCM2835_SPI_SPEED_8MHZ);
```
**Pins:**
|NRF24L01 | RPI | P1 Connector |
|----- |----------- | -------------|
|VCC: | rpi-3v3 | (17) |
|GND: | rpi-gnd | (25) |
|CE: | rpi-gpio22 | (15) |
|CSN: | rpi-gpio8 | (24) |
|SCK: | rpi-sckl | (23) |
|MOSI: | rpi-mosi | (19) |
|MISO: | rpi-miso | (21) |
|-----|-----------|-------------|
| VCC | rpi-3v3 | (17) |
| GND | rpi-gnd | (25) |
| CE | rpi-gpio22 | (15) |
| CSN | rpi-gpio8 | (24) |
| SCK | rpi-sckl | (23) |
| MOSI | rpi-mosi | (19) |
| MISO | rpi-miso | (21) |
See http://www.airspayce.com/mikem/bcm2835/index.html for BCM2835 class documentation.
Note: The BCM library has been customized slightly to allow use of hardware CE pins not
in use for SPI, and to include a millis() function.
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