main.cpp

00001 /*
00002  * Copyright (c) 2017 Helmut Tschemernjak
00003  * 30826 Garbsen (Hannover) Germany
00004  * Licensed under the Apache License, Version 2.0);
00005  */
00006  #include "main.h"
00007 
00008 
00009 DigitalOut myled(LED1);
00010 BufferedSerial *ser;
00011 
00012 int main() {
00013     SystemClock_Config();
00014     ser = new BufferedSerial(USBTX, USBRX);
00015     ser->baud(115200);
00016     ser->format(8);
00017 
00018     myled = 1;
00019     /*serRPi = new BufferedSerial(PA_9, PA_10);
00020     serRPi->baud(115200);
00021     serRPi->format(8);*/
00022     
00023     SX1276PingPong();
00024 }
00025 
00026 
00027 
00028 
00029 void SystemClock_Config(void)
00030 {
00031 #ifdef B_L072Z_LRWAN1_LORA
00032     /* 
00033      * The L072Z_LRWAN1_LORA clock setup is somewhat differnt from the Nucleo board.
00034      * It has no LSE.
00035      */
00036     RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
00037     RCC_OscInitTypeDef RCC_OscInitStruct = {0};
00038 
00039     /* Enable HSE Oscillator and Activate PLL with HSE as source */
00040     RCC_OscInitStruct.OscillatorType      = RCC_OSCILLATORTYPE_HSI;
00041     RCC_OscInitStruct.HSEState            = RCC_HSE_OFF;
00042     RCC_OscInitStruct.HSIState            = RCC_HSI_ON;
00043     RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
00044     RCC_OscInitStruct.PLL.PLLState        = RCC_PLL_ON;
00045     RCC_OscInitStruct.PLL.PLLSource       = RCC_PLLSOURCE_HSI;
00046     RCC_OscInitStruct.PLL.PLLMUL          = RCC_PLLMUL_6;
00047     RCC_OscInitStruct.PLL.PLLDIV          = RCC_PLLDIV_3;
00048 
00049     if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) {
00050         // Error_Handler();
00051     }
00052 
00053     /* Set Voltage scale1 as MCU will run at 32MHz */
00054     __HAL_RCC_PWR_CLK_ENABLE();
00055     __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
00056 
00057     /* Poll VOSF bit of in PWR_CSR. Wait until it is reset to 0 */
00058     while (__HAL_PWR_GET_FLAG(PWR_FLAG_VOS) != RESET) {};
00059 
00060     /* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2
00061     clocks dividers */
00062     RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
00063     RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
00064     RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
00065     RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
00066     RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
00067     if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1) != HAL_OK) {
00068         // Error_Handler();
00069     }
00070 #endif
00071 }
00072 
00073 void dump(const char *title, const void *data, int len, bool dwords)
00074 {
00075     dprintf("dump(\"%s\", 0x%x, %d bytes)", title, data, len);
00076 
00077     int i, j, cnt;
00078     unsigned char *u;
00079     const int width = 16;
00080     const int seppos = 7;
00081 
00082     cnt = 0;
00083     u = (unsigned char *)data;
00084     while (len > 0) {
00085         ser->printf("%08x: ", (unsigned int)data + cnt);
00086         if (dwords) {
00087             unsigned int *ip = ( unsigned int *)u;
00088             ser->printf(" 0x%08x\r\n", *ip);
00089             u+= 4;
00090             len -= 4;
00091             cnt += 4;
00092             continue;
00093         }
00094         cnt += width;
00095         j = len < width ? len : width;
00096         for (i = 0; i < j; i++) {
00097             ser->printf("%2.2x ", *(u + i));
00098             if (i == seppos)
00099                 ser->putc(' ');
00100         }
00101         ser->putc(' ');
00102         if (j < width) {
00103             i = width - j;
00104             if (i > seppos + 1)
00105                 ser->putc(' ');
00106             while (i--) {
00107                 printf("%s", "   ");
00108             }
00109         }
00110         for (i = 0; i < j; i++) {
00111             int c = *(u + i);
00112             if (c >= ' ' && c <= '~')
00113                 ser->putc(c);
00114             else
00115                 ser->putc('.');
00116             if (i == seppos)
00117                 ser->putc(' ');
00118         }
00119         len -= width;
00120         u += width;
00121         ser->printf("\r\n");
00122     }
00123     ser->printf("--\r\n");
00124 }