Srkn Trn
Basic can bus example with LCD hint
Dependencies: BSP_DISCO_F429ZI LCD_DISCO_F429ZI TS_DISCO_F429ZI mbed
Revision 0:6d192735c003, committed 2017-12-31
- Comitter:
- tamirci
- Date:
- Sun Dec 31 21:49:17 2017 +0000
- Commit message:
- Initial Release; LED lights on during transmission however TTL level signals are not captured correctly
Changed in this revision
diff -r 000000000000 -r 6d192735c003 BSP_DISCO_F429ZI.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/BSP_DISCO_F429ZI.lib Sun Dec 31 21:49:17 2017 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/teams/ST/code/BSP_DISCO_F429ZI/#2371382139dd
diff -r 000000000000 -r 6d192735c003 LCD_DISCO_F429ZI.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/LCD_DISCO_F429ZI.lib Sun Dec 31 21:49:17 2017 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/teams/ST/code/LCD_DISCO_F429ZI/#dc55a068bc1a
diff -r 000000000000 -r 6d192735c003 TS_DISCO_F429ZI.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/TS_DISCO_F429ZI.lib Sun Dec 31 21:49:17 2017 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/teams/ST/code/TS_DISCO_F429ZI/#4f8b6df8e235
diff -r 000000000000 -r 6d192735c003 main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Sun Dec 31 21:49:17 2017 +0000
@@ -0,0 +1,50 @@
+/******************************************************
+ * by tamirci::156103010::ST
+ * STM32F429I-DISCO Board Can Bus Example
+ *
+ * CAN1_RX -> PD_0, CAN1_TX -> PD_1
+ * LED1 -> PG_13, LED2 -> PG14
+ *
+ ******************************************************/
+#include "mbed.h"
+#include "TS_DISCO_F429ZI.h"
+#include "LCD_DISCO_F429ZI.h"
+
+Ticker ticker; // timer object for periodic transmission
+DigitalOut led1(LED1); // GPIO object for LED indication of can tx event
+DigitalOut led2(LED2); // GPIO object for LED indication of can rx event
+CAN can1(PD_0, PD_1); // CAN tranmit object::ttl level waves can be captured
+LCD_DISCO_F429ZI lcd; // Just to be sure demo application firmware is running
+
+char counter = 0; // the value that will be transmitted
+
+void send() {
+ printf("send()\n");
+ if(can1.write(CANMessage(1337, &counter, 1))) {
+ printf("wloop()\n");
+ counter++;
+ printf("Message sent: %d\n", counter);
+ }
+ led1 = !led1;
+}
+
+int main() {
+
+ CANMessage msg;
+ BSP_LCD_SetFont(&Font20);
+ lcd.DisplayStringAt(0, LINE(5), (uint8_t *)"CAN BUS", CENTER_MODE);
+ lcd.DisplayStringAt(0, LINE(6), (uint8_t *)"EXAMPLE", CENTER_MODE);
+ lcd.DisplayStringAt(0, LINE(7), (uint8_t *)"156103010", CENTER_MODE);
+ lcd.DisplayStringAt(0, LINE(8), (uint8_t *)"ST", CENTER_MODE);
+ wait(1);
+ printf("main()\n");
+ ticker.attach(&send,1); // send can message over CAN1_TX
+ while(1) {
+ printf("loop()\n");
+ if(can1.read(msg)) {
+ printf("Message received: %d\n", msg.data[0]);
+ led2 = !led2;
+ }
+ wait(0.2);
+ }
+}
\ No newline at end of file
diff -r 000000000000 -r 6d192735c003 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Sun Dec 31 21:49:17 2017 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/mbed_official/code/mbed/builds/7130f322cb7e \ No newline at end of file
diff -r 000000000000 -r 6d192735c003 readme.txt
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/readme.txt Sun Dec 31 21:49:17 2017 +0000
@@ -0,0 +1,157 @@
+
+BSP_DISCO_F429ZI (library)
+
+#include "stm32f429i_discovery.h"
+#include "stm32f429i_discovery_lcd.h"
+
+
+/**
+ * @brief System Clock Configuration
+ * The system Clock is configured as follow :
+ * System Clock source = PLL (HSE)
+ * SYSCLK(Hz) = 180000000
+ * HCLK(Hz) = 180000000
+ * AHB Prescaler = 1
+ * APB1 Prescaler = 4
+ * APB2 Prescaler = 2
+ * HSE Frequency(Hz) = 8000000
+ * PLL_M = 8
+ * PLL_N = 360
+ * PLL_P = 2
+ * PLL_Q = 7
+ * VDD(V) = 3.3
+ * Main regulator output voltage = Scale1 mode
+ * Flash Latency(WS) = 5
+ * @param None
+ * @retval None
+ */
+
+static void Error_Handler(void)
+{
+ while(1) {}
+}
+
+static void SystemClock_Config(void)
+{
+ RCC_ClkInitTypeDef RCC_ClkInitStruct;
+ RCC_OscInitTypeDef RCC_OscInitStruct;
+
+ /* Enable Power Control clock */
+ __PWR_CLK_ENABLE();
+
+ /* The voltage scaling allows optimizing the power consumption when the device is
+ clocked below the maximum system frequency, to update the voltage scaling value
+ regarding system frequency refer to product datasheet. */
+ __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
+
+ /* Enable HSE Oscillator and activate PLL with HSE as source */
+ RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
+ RCC_OscInitStruct.HSEState = RCC_HSE_ON;
+ RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
+ RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
+ RCC_OscInitStruct.PLL.PLLM = 8;
+ RCC_OscInitStruct.PLL.PLLN = 360;
+ RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
+ RCC_OscInitStruct.PLL.PLLQ = 7;
+ if(HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
+ {
+ /* Initialization Error */
+ Error_Handler();
+ }
+
+ if(HAL_PWREx_ActivateOverDrive() != HAL_OK)
+ {
+ /* Initialization Error */
+ Error_Handler();
+ }
+
+ /* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2
+ clocks dividers */
+ RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
+ RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
+ RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
+ RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
+ RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
+ if(HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5) != HAL_OK)
+ {
+ /* Initialization Error */
+ Error_Handler();
+ }
+}
+
+
+void Delaimes(int Count) {
+ short int i;
+ for(;Count>0;Count--)
+ {for(i=0;i<0x4fff;i++);
+ }
+}
+
+*/
+
+
+
+
+ HAL_Init();
+
+ SystemClock_Config(); // SYSclk=180MHz
+
+ BSP_LCD_Init();
+ BSP_LCD_LayerDefaultInit(LCD_FOREGROUND_LAYER, (LCD_FRAME_BUFFER + BUFFER_OFFSET));
+ BSP_LCD_SetTransparency(LCD_BACKGROUND_LAYER, 0);
+ BSP_LCD_SelectLayer(LCD_FOREGROUND_LAYER);
+ Delaimes(4);
+ BSP_LCD_SetBackColor(LCD_COLOR_BLACK);
+ BSP_LCD_Clear(LCD_COLOR_BLACK );
+ BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
+ Delaimes(4);
+ BSP_LCD_DisplayOn();
+ BSP_LCD_DisplayStringAtLine(0,buf);
+ Delaimes(4);
+
+gpiod->alternate=GPIO_AF9_CAN1;
+
+GPIO_InitTypeDef gpiod; //
+ HAL_Init();
+
+ gpiod.Pin = GPIO_PIN_0; gpiod.Mode = GPIO_MODE_AF_PP;
+ gpiod.Pull = GPIO_PULLUP; gpiod.Speed = GPIO_SPEED_FAST;
+ gpiod.Alternate = GPIO_AF9_CAN1;
+
+ HAL_GPIO_Init(GPIOD, &gpiod);
+
+ gpiod.Pin = GPIO_PIN_1; gpiod.Mode = GPIO_MODE_AF_PP;
+ gpiod.Pull = GPIO_PULLUP; gpiod.Speed = GPIO_SPEED_FAST;
+ gpiod.Alternate = GPIO_AF9_CAN1;
+
+ HAL_GPIO_Init(GPIOD, &gpiod);
+
+
+ HAL_Init();
+
+
+ __GPIOD_CLK_ENABLE();
+ gpiod.Pin = GPIO_PIN_0; gpiod.Mode = GPIO_MODE_AF_PP;
+ gpiod.Pull = GPIO_PULLUP; gpiod.Speed = GPIO_SPEED_FAST;
+ gpiod.Alternate = GPIO_AF9_CAN1;
+ HAL_GPIO_Init(GPIOD, &gpiod);
+ gpiod.Pin = GPIO_PIN_1; gpiod.Mode = GPIO_MODE_AF_PP;
+ gpiod.Pull = GPIO_PULLUP; gpiod.Speed = GPIO_SPEED_FAST;
+ gpiod.Alternate = GPIO_AF9_CAN1;
+ HAL_GPIO_Init(GPIOD, &gpiod);
+
+
+ canint.Init.Prescaler=1;
+ canint.Init.Mode=CAN_MODE_LOOPBACK;
+ canint.Init.SJW=3;
+ canint.Init.BS1=5;
+ canint.Init.BS2=10;
+ canint.Init.TTCM=DISABLE;
+ canint.Init.ABOM=DISABLE;
+ canint.Init.AWUM=DISABLE;
+ canint.Init.NART=DISABLE;
+ canint.Init.RFLM=DISABLE;
+ canint.Init.TXFP=DISABLE;
+
+
+ HAL_CAN_Init(&canint);
\ No newline at end of file