From baedda497d16c5096971eee83a0c467fe663fe6d Mon Sep 17 00:00:00 2001
From: Trygve Laugstøl <trygvis@inamo.no>
Date: Sat, 2 Jan 2016 21:13:31 +0100
Subject: o Moving around a lot of files.

---
 apps/test1/test1.cpp | 101 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 101 insertions(+)
 create mode 100644 apps/test1/test1.cpp

(limited to 'apps/test1/test1.cpp')

diff --git a/apps/test1/test1.cpp b/apps/test1/test1.cpp
new file mode 100644
index 0000000..a883876
--- /dev/null
+++ b/apps/test1/test1.cpp
@@ -0,0 +1,101 @@
+#include <stdint.h>
+#include <stdint-gcc.h>
+#include <stm32f10x.h>
+#include <stm32f10x_rcc.h>
+#include <stm32f10x_gpio.h>
+#include <stddef.h>
+#include "playground.h"
+
+extern "C"
+__attribute__((naked))
+void HardFault_Handler_C(uint32_t *hardfault_args);
+
+extern "C" void high();
+extern "C" void low();
+
+SCB_Type *__SCB = ((SCB_Type *) SCB_BASE);
+//extern SCB_Type *__SCB;
+
+struct hardfault_data_t {
+    uint32_t r0;
+    uint32_t r1;
+    uint32_t r2;
+    uint32_t r3;
+    uint32_t r12;
+    uint32_t lr;
+    uint32_t pc;
+    uint32_t psr;
+};
+
+volatile struct hardfault_data_t *hardfault_data = (volatile struct hardfault_data_t *) 0x20000800;
+
+void HardFault_Handler_C(uint32_t *hardfault_args) {
+    hardfault_data->r0 = hardfault_args[0];
+    hardfault_data->r1 = hardfault_args[1];
+    hardfault_data->r2 = hardfault_args[2];
+    hardfault_data->r3 = hardfault_args[3];
+    hardfault_data->r12 = hardfault_args[4];
+    hardfault_data->lr = hardfault_args[5];
+    hardfault_data->pc = hardfault_args[6];
+    hardfault_data->psr = hardfault_args[7];
+
+    halt();
+}
+
+void send_command(int command, void *message) {
+    bool active = (CoreDebug->DHCSR & CoreDebug_DHCSR_C_DEBUGEN_Msk) == CoreDebug_DHCSR_C_DEBUGEN_Msk;
+
+    if (!active) {
+        return;
+    }
+
+    __asm volatile (
+    "mov r0, %[cmd];"
+        "mov r1, %[msg];"
+        "bkpt #0xAB" : : [cmd] "r"(command), [msg] "r"(message) : "r0", "r1", "memory"
+    );
+}
+
+size_t strlen(const char *s) {
+    size_t size = 0;
+    while (*s++ != '\0') size++;
+    return size;
+}
+
+int run = 1;
+
+/*
+ * When we get there the stack pointer is set
+ */
+int main() {
+    SystemInit();
+//    SystemCoreClockUpdate();
+
+    SCB->SHCSR |= SCB_SHCSR_USGFAULTENA_Msk | SCB_SHCSR_MEMFAULTPENDED_Msk | SCB_SHCSR_BUSFAULTENA_Msk;
+
+    RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOA, ENABLE);
+    RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOA, DISABLE);
+
+    RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOB, ENABLE);
+    RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOB, DISABLE);
+
+    RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO | RCC_APB2Periph_GPIOC | RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOA,
+                           ENABLE);
+
+    GPIO_InitTypeDef init;
+    GPIO_StructInit(&init);
+    init.GPIO_Mode = GPIO_Mode_Out_PP;
+    GPIO_Init(GPIOB, &init);
+
+    while (run) {
+//        GPIO_SetBits(GPIOA, GPIO_Pin_All);
+        GPIO_SetBits(GPIOB, GPIO_Pin_All);
+//        GPIO_SetBits(GPIOC, GPIO_Pin_All);
+
+//        GPIO_ResetBits(GPIOA, GPIO_Pin_All);
+        GPIO_ResetBits(GPIOB, GPIO_Pin_All);
+//        GPIO_ResetBits(GPIOC, GPIO_Pin_All);
+    }
+
+    return 0;
+}
-- 
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