More I2C debugging

[home-hw.git] / Src / main.c

diff --git a/Src/main.c b/Src/main.c
index 22395ad86d356881ca7fa3e3b3ef1de5dc3ec1b4..7b5b75d0e3921e514183d9feb8bd79c6cdc78492 100644 (file)
--- a/Src/main.c
+++ b/Src/main.c
@@ -41,6 +41,11 @@
 #include "stm32f1xx_hal.h"
 
 /* USER CODE BEGIN Includes */
+#include "util.h"
+#include "usb.h"
+#include "app.h"
+
+#include <string.h>
 
 /* USER CODE END Includes */
 
@@ -50,7 +55,7 @@ PCD_HandleTypeDef hpcd_USB_FS;
 
 /* USER CODE BEGIN PV */
 /* Private variables ---------------------------------------------------------*/
-USBD_HandleTypeDef USBD_Device;
+struct usb usb;
 
 /* USER CODE END PV */
 
@@ -60,6 +65,7 @@ static void MX_GPIO_Init(void);
 static void MX_I2C1_Init(void);
 static void MX_I2C2_Init(void);
 static void MX_USB_PCD_Init(void);
+static void MX_TIM4_Init(void);
 
 /* USER CODE BEGIN PFP */
 /* Private function prototypes -----------------------------------------------*/
@@ -94,15 +100,43 @@ int main(void)
   SystemClock_Config();
 
   /* USER CODE BEGIN SysInit */
+  usb_init(&usb, &hpcd_USB_FS);
 
   /* USER CODE END SysInit */
 
   /* Initialize all configured peripherals */
   MX_GPIO_Init();
+
+  // A hack to let USB host reset us
+  LL_GPIO_InitTypeDef gpio;
+  gpio.Pin = LL_GPIO_PIN_12 | LL_GPIO_PIN_13;
+  gpio.Mode = LL_GPIO_MODE_OUTPUT;
+  gpio.Speed = LL_GPIO_SPEED_FREQ_HIGH;
+  gpio.OutputType = LL_GPIO_OUTPUT_OPENDRAIN;
+  LL_GPIO_Init(GPIOA, &gpio);
+  LL_GPIO_ResetOutputPin(GPIOA, LL_GPIO_PIN_12);
+  LL_GPIO_ResetOutputPin(GPIOA, LL_GPIO_PIN_13);
+  LL_mDelay(1000);
+
   MX_I2C1_Init();
   MX_I2C2_Init();
   MX_USB_PCD_Init();
+  MX_TIM4_Init();
   /* USER CODE BEGIN 2 */
+  //display_init();
+  usb_start(&usb);
+  bmp_init();
+
+  LL_TIM_EnableCounter(TIM4);
+  LL_TIM_EnableIT_UPDATE(TIM4);
+  LL_TIM_GenerateEvent_UPDATE(TIM4);
+
+#if 0
+  {
+    byte buf[5] = { 0xff, 0xff, 10, 0xff, 0xff };
+    display_buffer(buf);
+  }
+#endif
 
   /* USER CODE END 2 */
 
@@ -110,10 +144,32 @@ int main(void)
   /* USER CODE BEGIN WHILE */
   while (1)
   {
-    LL_GPIO_SetOutputPin(LED_GPIO_Port, LED_Pin);
-    LL_mDelay(1000);
-    LL_GPIO_ResetOutputPin(LED_GPIO_Port, LED_Pin);
-    LL_mDelay(1000);
+    if (rx_packet_state == 1 && !tx_packet_state)
+      {
+    static byte led_state;
+    if (led_state)
+      LL_GPIO_SetOutputPin(LED_GPIO_Port, LED_Pin);
+    else
+      LL_GPIO_ResetOutputPin(LED_GPIO_Port, LED_Pin);
+    led_state ^= 1;
+
+       // display_buffer(rx_packet);
+       tx_packet_state = 1;
+       tx_packet[0] = adjusted_temp >> 8;
+       tx_packet[1] = adjusted_temp & 0xff;
+       tx_packet[2] = adjusted_press >> 8;
+       tx_packet[3] = adjusted_press & 0xff;
+       usb_ep_send(&usb, 0x82, tx_packet, 8);
+       rx_packet_state = 0;
+       usb_ep_receive(&usb, 0x01, rx_packet, 64);
+      }
+
+    bmp_step();
+
+    // debug_printf("Counter = %d\n", cnt);
+    // display_counter(cnt);
+
+    __WFI();
 
   /* USER CODE END WHILE */
 
@@ -260,6 +316,45 @@ static void MX_I2C2_Init(void)
 
 }
 
+/* TIM4 init function */
+static void MX_TIM4_Init(void)
+{
+
+  LL_TIM_InitTypeDef TIM_InitStruct;
+  LL_TIM_OC_InitTypeDef TIM_OC_InitStruct;
+
+  /* Peripheral clock enable */
+  LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_TIM4);
+
+  /* TIM4 interrupt Init */
+  NVIC_SetPriority(TIM4_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
+  NVIC_EnableIRQ(TIM4_IRQn);
+
+  TIM_InitStruct.Prescaler = 7200;
+  TIM_InitStruct.CounterMode = LL_TIM_COUNTERMODE_UP;
+  TIM_InitStruct.Autoreload = 1000;
+  TIM_InitStruct.ClockDivision = LL_TIM_CLOCKDIVISION_DIV1;
+  LL_TIM_Init(TIM4, &TIM_InitStruct);
+
+  LL_TIM_DisableARRPreload(TIM4);
+
+  LL_TIM_SetClockSource(TIM4, LL_TIM_CLOCKSOURCE_INTERNAL);
+
+  TIM_OC_InitStruct.OCMode = LL_TIM_OCMODE_FROZEN;
+  TIM_OC_InitStruct.OCState = LL_TIM_OCSTATE_DISABLE;
+  TIM_OC_InitStruct.OCNState = LL_TIM_OCSTATE_DISABLE;
+  TIM_OC_InitStruct.CompareValue = 0;
+  TIM_OC_InitStruct.OCPolarity = LL_TIM_OCPOLARITY_HIGH;
+  LL_TIM_OC_Init(TIM4, LL_TIM_CHANNEL_CH1, &TIM_OC_InitStruct);
+
+  LL_TIM_OC_DisableFast(TIM4, LL_TIM_CHANNEL_CH1);
+
+  LL_TIM_SetTriggerOutput(TIM4, LL_TIM_TRGO_RESET);
+
+  LL_TIM_DisableMasterSlaveMode(TIM4);
+
+}
+
 /* USB init function */
 static void MX_USB_PCD_Init(void)
 {