Diff: main.cpp

Revision:

3:65a33de8fa08

Parent:

2:0248049e65f1

Child:

4:b1021974c3e7

--- a/main.cpp	Sat Nov 01 13:58:50 2014 +0000
+++ b/main.cpp	Sun Nov 02 03:22:21 2014 +0000
@@ -1,9 +1,15 @@
 /*
  * test for 
- *  - Microchip SRAM 23K256 (SPI)
- *  - Intersil Red/Green/Blue Color Light Sensor (I2C, address = 1000 100x, hard-wires)
- *    - ISL29125 data sheet, p.7, Device Adressing 
- *  - 
+ *  - Microchip 23K256
+ *    - SRAM
+ *    - SPI 20MHz
+ *  - Intersil ISL29125
+ *    - Red/Green/Blue Color Light Sensor
+ *    - I2C 500KHz, address = x100 0100, hard-wires
+ *  - TAOS TSL2561
+ *    - LUX Sensor
+ *    - I2C 400kHz, address = x010 1001 (ADDR-GND), x011 1011 (ADDR-Float), x100 1001 (ADDR-VDD)
+ *    - A/D conversion time: 12ms min, 100ms typ, 400ms max. 
  */
 
 #include "mbed.h"
@@ -11,32 +17,37 @@
 /** Serial port for DEBUG */
 Serial pc(USBTX, USBRX);
 
-InterruptIn mybutton(USER_BUTTON);
-
-/** ユーザーボタンが押されたらtrue */
-volatile bool is_pressed = false;
-
-/**
- * USERボタン 割り込みハンドラ
- */
-void 
-pressed() {
-    is_pressed = true;
-}
+DigitalIn user_button(USER_BUTTON);
 
 /**
  * USERボタンが押されるまで待つ。
  */
 void
 wait_until_user_button_pressed() {
-    while (!is_pressed) {
+    while (user_button) {
         __nop();
     }
-    is_pressed = false;
     pc.printf("USER button is pressed\r\n");
 }
 
 /** */
+//DigitalOut user_led(LED1);  // SPI1 SCK
+
+/**
+ *
+ * @param[in] interval_sec 点滅間隔(単位=秒)
+ * @param[in] times 点滅回数
+*/
+//void
+//flash_led(const float interval_sec, const uint16_t times) {
+//    user_led = 1;
+//    for (uint16_t i = 0; i < times * 2; ++i) {
+//        wait(interval_sec);
+//        user_led = !user_led;
+//    }
+//}
+
+/** */
 SPI spi(SPI_MOSI, SPI_MISO, SPI_SCK);
 
 /** */
@@ -323,30 +334,34 @@
 int
 main()
 {
-    mybutton.fall(&pressed);
+    pc.printf("CPU SystemCoreClock is %.2f MHz\r\n", (float)SystemCoreClock/1.0e6f);
 
-    wait_until_user_button_pressed();
-
-    // initialize
+    // initialize SPI
     spi.format(8, 0);   // 8bit, mode=0
     spi.frequency(20 * 1000 * 1000);    // max 20MHz
     negate_CS();
 
     // test
-    pc.printf("TEST START\r\n");
-
+    pc.printf("\r\npush user button to start: try_single_byte_access\r\n");
     wait_until_user_button_pressed();
     try_single_byte_access();
 
+    pc.printf("\r\npush user button to start: try_byte_access\r\n");
     wait_until_user_button_pressed();
     try_byte_access();
 
+    pc.printf("\r\npush user button to start: try_page_access\r\n");
+    wait_until_user_button_pressed();
     try_page_access();
 
+    pc.printf("\r\npush user button to start: try_sequential_access\r\n");
     wait_until_user_button_pressed();
     try_sequential_access();
 
-    pc.printf("TEST END\r\n\r\n");
+    pc.printf("\r\nTEST END\r\n\r\n");
 
-    return 0;
+    for(;;) {
+//        flash_led(0.125, 8);
+//        flash_led(0.50, 2);
+    }
 }