David Möschwitzer
SPI-Brigde (capseld), for polling interrupt, it is neccessary to adapt the constructor and the function getInt()
Diff: SC18IS602.h
- Revision:
- 0:833cb2c6da5d
- Child:
- 1:2a7edc2be6df
diff -r 000000000000 -r 833cb2c6da5d SC18IS602.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/SC18IS602.h Fri Feb 01 09:40:03 2019 +0000
@@ -0,0 +1,129 @@
+#ifndef H_SC18IS602
+#define H_SC18IS602
+
+#include "mbed.h"
+#include <string>
+
+#include "PCA9555.h"
+
+class SC18IS602
+{
+ public:
+
+ static const int BUFFER_SIZE = 200;// Byte
+ static const bool ACK = false;
+ static const bool NACK = true;
+ static const bool INTERRUPT = false;
+
+
+ // Register Adress
+ static const int HARD_ADR = 0x50;
+ static const int USER_ADR_MASK = 0x07;
+
+ static const int CMD_RW_CS0 = 0x01;
+ static const int CMD_RW_CS1 = 0x02;
+ static const int CMD_RW_CS2 = 0x04;
+ static const int CMD_RW_CS3 = 0x08;
+
+ static const int ADR_SPI_CONF = 0xF0;
+ static const int ADR_GPIO_WRITE = 0xF4;
+ static const int ADR_GPIO_READ = 0xF5;
+ static const int ADR_GPIO_EN = 0xF6;
+ static const int ADR_GPIO_CONF = 0xF7;
+
+
+ //Bit position of register Configure SPI Interface
+ static const int SPI_BIT_ORDER = 5;
+ static const int SPI_MODE = 2;
+ static const int SPI_CLK_RATE = 0;
+
+ // Register Value SPI bit order
+ static const int SPI_BIT_ORDER_MSB = 0; // MSB of the data word is transmitted first
+ static const int SPI_BIT_ORDER_LSB = 1; // LSB of the data word is transmitted first
+
+ // Register Value SPI Mode (CPOL, CPHA)
+ static const int SPI_MODE_00 = 0;
+ static const int SPI_MODE_01 = 1;
+ static const int SPI_MODE_10 = 2;
+ static const int SPI_MODE_11 = 3;
+
+ //Register Value - Clock Rate
+ static const int SPI_RATE_58K = 0;
+ static const int SPI_RATE_115K = 1;
+ static const int SPI_RATE_461K = 2;
+ static const int SPI_RATE_1M8 = 3;
+
+
+
+ // Bist position of Register GPIO Enable
+ static const int GPIO_CS0 = 0;
+ static const int GPIO_CS1 = 1;
+ static const int GPIO_CS2 = 2;
+ static const int GPIO_CS3 = 3;
+
+
+
+ // Bit position of Register GPIO config
+ static const int GPIO_CONF_CS0 = 0;
+ static const int GPIO_CONF_CS1 = 2;
+ static const int GPIO_CONF_CS2 = 4;
+ static const int GPIO_CONF_CS3 = 6;
+
+
+ // Register Value of GPIO config
+ static const int BIDIRECTIONAL = 0; // quasi bidirecitonal
+ static const int PUSH_PULL = 1; //
+ static const int INPUT_ONLY = 2; // high impedance
+ static const int OPEN_DRAIN = 3; // needs an external pullup
+
+
+ const int iINT;
+
+ // public
+ SC18IS602(I2C *_i2c, uint8_t uiAdr);
+ SC18IS602(I2C *_i2c, PCA9555 *_pca , uint8_t uiAdr); //
+ SC18IS602(I2C *_i2c, DigitalIn *_IntPin, uint8_t uiAdr); //
+
+
+ bool configSPI(uint8_t uiConf);
+ bool enableGPIO(uint8_t uiConf);
+ bool configGPIO(uint8_t uiConf);
+
+ bool GPIO_pin3_on();
+ bool GPIO_pin3_off();
+ bool gpio_toggle(uint8_t uiPort);
+
+ bool sendViaSPI(char cAdrByte, char *cDataBytes, uint8_t uiNum);
+ bool readViaSPI(char cAdrByte, char *cDataBytes, uint8_t uiNum);
+
+
+ bool getInt();
+ bool clearInt();
+
+ private: // private
+ I2C *i2c; // Serial Data & Clock
+ PCA9555 *pca;
+ DigitalIn *IntPin; // Interrupt pin
+
+
+ bool sendViaI2C(const char *cData, int iLength, string sDebug = "");
+ bool readViaI2C(char *cData, int iLength, string sDebug = "");
+
+
+
+
+ // variable
+ bool bAck;
+ unsigned int uiNumByte;
+ char cCmd[BUFFER_SIZE];
+
+ const uint8_t SC18IS602_W; // const write-address
+ const uint8_t SC18IS602_R; // const read-address
+
+
+ char cDebug[100];
+
+};
+
+
+#endif