Initial commit

external/CMSIS_5/CMSIS/DoxyGen/Driver/src/I2C_SlaveDemo.c

@@ -0,0 +1,41 @@
+#include "Driver_I2C.h"
+ 
+/* I2C driver instance */
+extern ARM_DRIVER_I2C            Driver_I2C0; 
+static ARM_DRIVER_I2C *I2Cdrv = &Driver_I2C0;
+ 
+static volatile uint32_t I2C_Event;
+ 
+/* I2C Signal Event function callback */
+static void I2C_SignalEvent (uint32_t event) {
+  I2C_Event |= event;
+}
+ 
+int main (void) {
+  uint8_t cnt = 0;
+ 
+  /* Initialize I2C peripheral */
+  I2Cdrv->Initialize(I2C_SignalEvent);
+ 
+  /* Power-on I2C peripheral */
+  I2Cdrv->PowerControl(ARM_POWER_FULL);
+ 
+  /* Configure I2C bus */
+  I2Cdrv->Control(ARM_I2C_OWN_ADDRESS, 0x78);
+ 
+  I2C_Event = 0;
+
+  while (1) {
+    /* Receive chunk */
+    I2Cdrv->SlaveReceive(&cnt, 1);
+    while ((I2C_Event & ARM_I2C_EVENT_TRANSFER_DONE) == 0);
+    /* Clear transfer done flag */
+    I2C_Event &= ~ARM_I2C_EVENT_TRANSFER_DONE;
+ 
+    /* Transmit chunk back */
+    I2Cdrv->SlaveTransmit(&cnt, 1);
+    while ((I2C_Event & ARM_I2C_EVENT_TRANSFER_DONE) == 0);
+    /* Clear transfer done flag */
+    I2C_Event &= ~ARM_I2C_EVENT_TRANSFER_DONE;
+  }
+}