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#411 support CS0-4

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This commit is contained in:
mstroh76
2026-01-10 17:06:26 +01:00
parent 565097557d
commit 2d22070aa3
3 changed files with 8 additions and 6 deletions
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4
documentation/deutsch/functions.md
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@@ -809,8 +809,8 @@ int wiringPiSPISetupMode(int channel, int speed, int mode)
int wiringPiSPIxSetupMode(const int number, const int channel, const int speed, const int mode) int wiringPiSPIxSetupMode(const int number, const int channel, const int speed, const int mode)
``` ```
``number``: SPI Nummer (typisch 0, bei Compute Modul 0-7). ``number``: SPI Nummer (typisch 0, bei Compute Modul 0-6).
``channel``: SPI Kanal (typisch 0 oder 1, bei Compute Modul 0-3). ``channel``: SPI Kanal (typisch 0 oder 1, bei Compute Modul oder entsprechenden overlay 0-4).
``speed``: SPI Taktrate. ``speed``: SPI Taktrate.
``mode``: SPI Modus (https://www.kernel.org/doc/Documentation/spi/spidev). ``mode``: SPI Modus (https://www.kernel.org/doc/Documentation/spi/spidev).
``Rückgabewert``: Datei Handle zum SPI-Bus ``Rückgabewert``: Datei Handle zum SPI-Bus

4
documentation/english/functions.md
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@@ -798,8 +798,8 @@ int wiringPiSPISetupMode(int channel, int speed, int mode);
int wiringPiSPIxSetupMode(const int number, const int channel, const int speed, const int mode); int wiringPiSPIxSetupMode(const int number, const int channel, const int speed, const int mode);
``` ```
``number``: SPI number (typically 0, on Compute Module 0-7). ``number``: SPI number (typically 0, on Compute Module 0-6).
``channel``: SPI channel (typically 0 or 1, on Compute Module 0-3). ``channel``: SPI channel (typically 0 or 1, on Compute Module or the corresponding overlay 0-4).
``speed``: SPI clock speed in Hz (500,000 to 32,000,000). ``speed``: SPI clock speed in Hz (500,000 to 32,000,000).
``mode``: SPI mode ([www.kernel.org/doc/Documentation/spi/spidev](https://www.kernel.org/doc/Documentation/spi/spidev)). ``mode``: SPI mode ([www.kernel.org/doc/Documentation/spi/spidev](https://www.kernel.org/doc/Documentation/spi/spidev)).
``Return Value``: File handle to the SPI bus, or -1 on error. ``Return Value``: File handle to the SPI bus, or -1 on error.

6
wiringPi/wiringPiSPI.c
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@@ -44,9 +44,11 @@
//static const char *spiDev1 = "/dev/spidev0.1" ; //static const char *spiDev1 = "/dev/spidev0.1" ;
static const uint8_t spiBPW = 8 ; static const uint8_t spiBPW = 8 ;
static const uint16_t spiDelay = 0 ; static const uint16_t spiDelay = 0 ;
//https://datasheets.raspberrypi.com/cm4/cm4-datasheet.pdf //https://datasheets.raspberrypi.com/cm4/cm4-datasheet.pdf SPI0-6, CS0-2
//cm5-datasheet.pdf SPI0-5, CS depend on SPInumber, can be up to 4
//spi0-4cs.dts extention for supporting CS0-4
const uint8_t WPI_MaxSPINumbers = 7 ; const uint8_t WPI_MaxSPINumbers = 7 ;
const uint8_t WPI_MaxSPIChannels = 3 ; const uint8_t WPI_MaxSPIChannels = 5 ;
static uint32_t spiSpeeds [7][3] = static uint32_t spiSpeeds [7][3] =