Diff: main.cpp

Revision:

0:044197641ae8

Child:

1:a88865265000

diff -r 000000000000 -r 044197641ae8 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Jan 07 17:58:43 2015 +0000
@@ -0,0 +1,89 @@
+#include "mbed.h"
+
+#define BTN0_PIN P6_0
+#define BTN1_PIN P6_1
+#define BTN0_IRQ IRQ5_IRQn
+#define BTN1_IRQ IRQ4_IRQn
+
+InterruptIn button0(BTN0_PIN);
+InterruptIn button1(BTN1_PIN);
+DigitalOut rled(LED_RED);
+DigitalOut bled(LED_BLUE);
+
+#define DELAY_CNT 1000000000
+
+void button0_int_handler() {
+    rled = 0;
+    for (int i = 0; i <= DELAY_CNT; i++) ;
+    rled = 1;
+}
+
+void button1_int_handler() {
+    bled = 0;
+    for (int i = 0; i <= DELAY_CNT; i++) ;
+    bled = 1;
+}
+
+int32_t R_INTC_SetPriority(uint16_t int_id, uint8_t priority);
+
+int main() {
+    rled = 1;
+    bled = 1;
+    R_INTC_SetPriority(BTN0_IRQ, 1);
+    button0.fall(&button0_int_handler);
+    button1.fall(&button1_int_handler);
+    while(1) {
+        wait(1);
+    }
+}
+
+/**
+ * http://japan.renesas.com/req/sample_code.do?event=searchProducts&%20expandedProductsId=1&productsId=186374
+ */
+#include "r_typedefs.h"
+#include "dev_drv.h"                /* Device Driver common header */
+//#include "devdrv_intc.h"            /* INTC Driver Header */
+#include "iodefine.h"
+#define INTC_ID_TOTAL           (587)
+/******************************************************************************
+* Function Name: R_INTC_SetPriority
+* Description  : Sets the priority level of the ID specified by the int_id to 
+*              : the priority level specified by the priority.
+* Arguments    : uint16_t int_id   : Interrupt ID
+*              : uint8_t  priority : Interrupt priority level (0 to 31)
+* Return Value : DEVDRV_SUCCESS    : Success of INTC interrupt priority level setting
+*              : DEVDRV_ERROR      : Failure of INTC interrupt priority level setting
+******************************************************************************/
+int32_t R_INTC_SetPriority(uint16_t int_id, uint8_t priority)
+{
+    uint32_t icdipr;
+    uint32_t mask;
+    volatile uint32_t * addr;
+
+    /* ==== Argument check ==== */
+    if ((int_id >= INTC_ID_TOTAL) || priority >= 32)
+    {
+        return DEVDRV_ERROR;        /* Argument error */
+    }
+
+    priority = priority << 3;       /* Priority[7:3] of ICDIPRn is valid bit */
+
+    /* ICDIPRn has 4 sources in the 32 bits                 */
+    /* The n can be calculated by int_id / 4                */
+    /* The bit field width is 8 bits                        */
+    /* The target bit can be calculated by (int_id % 4) * 8 */
+    addr = (volatile uint32_t *)&INTC.ICDIPR0;
+
+    icdipr = *(addr + (int_id / 4));    /* Read ICDIPRn */
+
+    mask = (uint32_t)0x000000FFuL;      /* ---- Mask ----      */
+    mask = mask << ((int_id % 4) * 8);  /* Shift to target bit */
+    icdipr &= ~mask;                    /* Clear priority      */
+    mask = (uint32_t)priority;          /* ---- Priority ----  */
+    mask = mask << ((int_id % 4) * 8);  /* Shift to target bit */
+    icdipr |= mask;                     /* Set priority        */
+
+    *(addr + (int_id / 4)) = icdipr;    /* Write ICDIPRn */
+
+    return DEVDRV_SUCCESS;
+}