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* spi support setting hw cs pin

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This commit is contained in:
lxowalle
2025-05-28 11:26:04 +08:00
parent 0d388bfd4b
commit 617de5a59a
3 changed files with 5 additions and 4 deletions
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3
components/peripheral/include/maix_spi.hpp
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@@ -42,10 +42,11 @@ namespace maix::peripheral::spi
* @param[in] cs_enable cs pin active level, default is 0(low)
* @param[in] soft_cs not use hardware cs, bool type, if set true, you can operate cs pin use gpio manually.
* @param[in] cs soft cs pin number, std::string type, default is "GPIOA19", if SPI support multi hardware cs, you can set it to other value.
* @param[in] hw_cs_id hardware cs id, int type, default is 0, if SPI support multi hardware cs, you can set it to other value.
* @maixpy maix.peripheral.spi.SPI.__init__
*/
SPI(int id, spi::Mode mode, int freq, int polarity = 0, int phase = 0,
int bits = 8, unsigned char cs_enable=0, bool soft_cs = false, std::string cs = "GPIOA19");
int bits = 8, unsigned char cs_enable=0, bool soft_cs = false, std::string cs = "GPIOA19", int hw_cs_id = 0);
~SPI();
/**

2
components/peripheral/port/linux/maix_spi.cpp
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@@ -11,7 +11,7 @@
namespace maix::peripheral::spi
{
SPI::SPI(int id, spi::Mode mode, int freq, int polarity, int phase, int bits, unsigned char cs_enable, bool soft_cs, std::string cs)
SPI::SPI(int id, spi::Mode mode, int freq, int polarity, int phase, int bits, unsigned char cs_enable, bool soft_cs, std::string cs, int hw_cs_id)
{
throw err::Exception(err::Err::ERR_NOT_IMPL, "SPI not implemented");
}

4
components/peripheral/port/maixcam/maix_spi.cpp
View File

@@ -63,7 +63,7 @@ namespace maix::peripheral::spi
}
SPI::SPI(int id, spi::Mode mode, int freq, int polarity, int phase,
int bits, unsigned char cs_enable, bool soft_cs, std::string cs)
int bits, unsigned char cs_enable, bool soft_cs, std::string cs, int hw_cs_id)
:_used_soft_cs(soft_cs), _cs_enable(cs_enable), _bits(bits), _freq(freq)
{
{
@@ -87,7 +87,7 @@ namespace maix::peripheral::spi
"GPIO as the CS pin.");
}
std::string dev_name("/dev/spidev"+std::to_string(id)+".0");
std::string dev_name("/dev/spidev"+std::to_string(id)+"."+std::to_string(hw_cs_id));
log::debug("try to open %s...", dev_name.c_str());
_fd = ::open(dev_name.c_str(), O_RDWR);
if (_fd < 0)