Diff: main.cpp

Revision:

5:9a662dec2ddb

Parent:

4:4eeacb39a417

Child:

6:e4da8955cf65

--- a/main.cpp	Tue Aug 05 23:11:15 2014 +0000
+++ b/main.cpp	Tue Aug 05 23:53:59 2014 +0000
@@ -3,6 +3,18 @@
 #define OK    (0)
 #define ERROR (-1)
 
+#define PIN_41 PB_5
+#define PIN_46 PB_9
+#define PIN_32 PA_11
+#define PIN_20 PB_2
+#define HEX_ONE_THOUSAND (0x03E8)
+
+DigitalOut ENA(PIN_41);
+DigitalOut ENB(PIN_46);
+DigitalOut ENC(PIN_32);
+DigitalOut EnSclk(PIN_20);
+
+
 // Forward Declarations
 void pwmout_period_ns(pwmout_t* obj, int us);
 int  cmd_S0(uint16_t value);
@@ -11,10 +23,17 @@
 // Globals
 bool gSpiMode = false;
 SPI* gSpiPtr = NULL;
-DigitalOut gbbTRANS(D8); // Global bit bang TRANS (data) line
+DigitalOut gbbTRANS(PA_4); // Global bit bang TRANS (data) line
+const int SCLK_ENABLED = 0;
 
 
 int main() {
+    ENA = 1;
+    ENB = 1;
+    ENC = 1;
+    EnSclk = SCLK_ENABLED;
+
+
     // NOTE: 24MHz is half the 48MHz clock rate.  The PWM registers
     //       seem to only allow 24MHz at this point, so I'm matching
     //       the SPI bus speed to be the same.
@@ -30,9 +49,10 @@
 
     // PWMCLK
     pwmout_t outs;
-    pwmout_init(&outs, D9);
-    pwmout_period_ns(&outs, 2); // 24 MHz (not very clean on the scope)
+    pwmout_init(&outs, PB_4);
+    //pwmout_period_ns(&outs, 2); // 24 MHz (not very clean on the scope)
     // pwmout_period_ns(&outs, 40); // 1.2 MHz on the scope
+    pwmout_period_us(&outs, 2); // 1.2 MHz on the scope
     pwmout_write(&outs, 0.5f);
 
     int ret = OK; // Return value
@@ -40,9 +60,9 @@
 
     printf("17:10\n");
 
-    while (1) {
-        for (i=0; i<16; i++) {
-            ret = cmd_S0(0xFFFF);
+    //while (1) {
+        for (i=0; i<400; i++) {
+            ret = cmd_S0(0x0900);
             // ORIG: ret = cmd_S0(0xFFFF);
             if (ret != OK) {
                 printf("ERROR cmd_S0()\n");
@@ -50,7 +70,7 @@
             }
         }
         cmd_S1();
-    }
+    //}
 }
 
 
@@ -123,10 +143,10 @@
 }
 
 
-
+/* USED FOR THE F030 BOARD
 // This code is based off:
 // mbed/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F030R8/pwmout_api.c  pwmout_period_us()
-void pwmout_period_ns(pwmout_t* obj, int us) {
+void pwmout_period_ns_NOT_USED(pwmout_t* obj, int us) {
     TIM_TypeDef *tim = (TIM_TypeDef *)(obj->pwm);
     TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
     float dc = pwmout_read(obj);
@@ -149,3 +169,36 @@
 
     TIM_Cmd(tim, ENABLE);
 }
+*/
+
+
+
+/* HAVE NOT GOTTEN THIS WORKNIG FOR THE F072
+// This code is based off:
+// mbed/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F072* /pwmout_api.c  pwmout_period_us()
+void pwmout_period_ns(pwmout_t* obj, int us) {
+    TimHandle.Instance = (TIM_TypeDef *)(obj->pwm);
+
+    float dc = pwmout_read(obj);
+
+    __HAL_TIM_DISABLE(&TimHandle);
+
+    // Update the SystemCoreClock variable
+    SystemCoreClockUpdate();
+
+    TimHandle.Init.Period        = us - 1;
+    // TimHandle.Init.Prescaler     = (uint16_t)(SystemCoreClock / 1000000) - 1; // 1 µs tick
+    TimHandle.Init.Prescaler     = 0;  // BAG 1 ns tick (?)
+    TimHandle.Init.ClockDivision = 0;
+    TimHandle.Init.CounterMode   = TIM_COUNTERMODE_UP;
+    HAL_TIM_PWM_Init(&TimHandle);
+
+    // Set duty cycle again
+    pwmout_write(obj, dc);
+
+    // Save for future use
+    obj->period = us;
+
+    __HAL_TIM_ENABLE(&TimHandle);
+}
+*/
\ No newline at end of file