Import debug scripts

Author: nedseb

samples/main.cpp

@@ -0,0 +1,19 @@
+#include "STM32IotNode.h"
+using namespace codal;
+
+STM32IotNode IotNode;
+
+int main()
+{
+    IotNode.init();
+    IotNode.serial.printf("*** STM32_IOT_NODE BLINKY TEST ***\r\n");
+
+    int state = 0;
+
+    while(1)
+    {
+        IotNode.io.led.setDigitalValue(state);
+        fiber_sleep(1000);
+        state = !state;
+    }
+}

scripts/debug.cfg

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+gdb_port pipe
+gdb_memory_map disable
+
+$_TARGETNAME configure -event gdb-attach {
+    echo "Halting target"
+    halt
+}
+
+$_TARGETNAME configure -event gdb-detach {
+    echo "Resetting target"
+    reset
+}

scripts/flash.sh

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+#!/bin/sh
+set -e
+./build.py
+openocd -s "/usr/share/openocd/scripts/" -s"libraries/codal-stm32-iot-node/scripts/" -f "openocd.cfg" -c "program build/STM32_IOT_NODE.hex verify reset exit "

scripts/gdb.sh

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+#!/bin/sh
+arm-none-eabi-gdb --eval "target remote | openocd -s /usr/share/openocd/scripts/ -s libraries/codal-stm32-iot-node/scripts/ -f openocd.cfg -f debug.cfg" build/STM32_IOT_NODE

scripts/openocd.cfg

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+source [find interface/stlink-v2-1.cfg]
+
+set WORKAREASIZE 0x8000
+
+transport select hla_swd
+
+set CHIPNAME STM32L475VGTx
+set ENABLE_LOW_POWER 1
+set STOP_WATCHDOG 1
+set CLOCK_FREQ 4000
+
+reset_config none separate
+
+set CONNECT_UNDER_RESET 1
+
+source [find target/stm32l4x.cfg]
+
+adapter_khz 480

source/init.cpp

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+#include "stm32.h"
+#include "codal_target_hal.h"
+#include "CodalDmesg.h"
+
+void target_init();
+
+extern "C" void cpu_init()
+{
+    SystemCoreClockUpdate();
+
+    target_init();
+
+    RCC_ClkInitTypeDef RCC_ClkInitStruct;
+    RCC_OscInitTypeDef RCC_OscInitStruct;
+
+    /* Enable Power Control clock */
+    __HAL_RCC_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_SCALE2);
+
+    /* 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;
+
+    uint32_t pllm = HSE_VALUE / 1000000;
+
+    CODAL_ASSERT(pllm >= 4);
+    CODAL_ASSERT(pllm <= 25);
+    CODAL_ASSERT(pllm * 1000000 == HSE_VALUE);
+
+    RCC_OscInitStruct.PLL.PLLM = pllm;
+    RCC_OscInitStruct.PLL.PLLN = 336;
+    RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
+    RCC_OscInitStruct.PLL.PLLQ = 7;
+    HAL_RCC_OscConfig(&RCC_OscInitStruct);
+
+    /* 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_DIV2;
+    RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
+    HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2);
+
+    SystemCoreClockUpdate();
+
+    __HAL_RCC_TIM5_CLK_ENABLE();
+
+    // enable backup registers (for reboot into bootloader or into app)
+    PWR->CR |= PWR_CR_DBP;
+    RCC->BDCR |= RCC_BDCR_RTCEN;
+}