o Moving around a lot of files.

1 files changed, 0 insertions, 150 deletions

diff --git a/serial2.cpp b/serial2.cpp
deleted file mode 100644
index c0259ea..0000000
--- a/serial2.cpp
+++ /dev/null
@@ -1,150 +0,0 @@
-#include <stdint.h>
-#include <stm32f10x.h>
-#include <stm32f10x_rcc.h>
-#include <stm32f10x_gpio.h>
-#include <stm32f10x_usart.h>
-#include <misc.h>
-
-#include "debug.h"
-#include "tinyprintf.h"
-#include "playground.h"
-
-extern "C"
-__attribute__((naked, used))
-void HardFault_Handler_C(uint32_t *hardfault_args) {
-    dbg_printf("r0 = 0x%08lx (%lu)\n", hardfault_args[0], hardfault_args[0]);
-    dbg_printf("r1 = 0x%08lx (%lu)\n", hardfault_args[1], hardfault_args[1]);
-    dbg_printf("r2 = 0x%08lx (%lu)\n", hardfault_args[2], hardfault_args[2]);
-    dbg_printf("r3 = 0x%08lx (%lu)\n", hardfault_args[3], hardfault_args[3]);
-    dbg_printf("r12 = 0x%08lx (%lu)\n", hardfault_args[4], hardfault_args[4]);
-    dbg_printf("lr = 0x%08lx (%lu)\n", hardfault_args[5], hardfault_args[5]);
-    dbg_printf("pc = 0x%08lx (%lu)\n", hardfault_args[6], hardfault_args[6]);
-    dbg_printf("psr = 0x%08lx (%lu)\n", hardfault_args[7], hardfault_args[7]);
-    dbg_printf("\n");
-
-    halt();
-}
-
-size_t strlen(const char *s) {
-    size_t size = 0;
-    while (*s++ != '\0') size++;
-    return size;
-}
-
-int run = 1;
-
-volatile USART_TypeDef *usart1 = (volatile USART_TypeDef *) USART1_BASE;
-
-volatile uint8_t tx_ready = 0;
-
-/*
- * When we get there the stack pointer is set
- */
-int main() {
-    SystemInit();
-
-    init_printf(nullptr, dbg_putc);
-
-    RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO
-                           | RCC_APB2Periph_USART1
-                           | RCC_APB2Periph_GPIOA
-                           | RCC_APB2Periph_GPIOB
-                           | RCC_APB2Periph_GPIOC,
-                           ENABLE);
-
-    /* ***************************************** */
-
-    // Debug on port B
-
-    RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOB, ENABLE);
-    RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOB, DISABLE);
-
-    // Make Port B's pin #5 the debug output pin
-    GPIO_InitTypeDef init;
-    GPIO_StructInit(&init);
-    init.GPIO_Pin = GPIO_Pin_5;
-    init.GPIO_Mode = GPIO_Mode_Out_PP;
-    GPIO_Init(GPIOB, &init);
-
-    /* ***************************************** */
-
-    RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOA, ENABLE);
-    RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOA, DISABLE);
-
-    /*
-     * PA9	USART1_TX
-     * PA10	USART1_RX
-     */
-
-    // Enable USART1
-    RCC_APB2PeriphResetCmd(RCC_APB2Periph_USART1, ENABLE);
-    RCC_APB2PeriphResetCmd(RCC_APB2Periph_USART1, DISABLE);
-
-    // Make the TX pin an output
-    GPIO_StructInit(&init);
-    init.GPIO_Pin = GPIO_Pin_9;
-    init.GPIO_Mode = GPIO_Mode_AF_PP;
-    GPIO_Init(GPIOA, &init);
-
-    NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);
-    NVIC_InitTypeDef NVIC_InitStruct = {
-        NVIC_IRQChannel: USART1_IRQn,
-        NVIC_IRQChannelPreemptionPriority: 0,
-        NVIC_IRQChannelSubPriority: 0,
-        NVIC_IRQChannelCmd: ENABLE,
-    };
-    NVIC_Init(&NVIC_InitStruct);
-    NVIC_EnableIRQ(USART1_IRQn);
-
-    // 8 bit mode
-    USART1->CR1 &= ~USART_CR1_M;
-    USART1->CR2 &= ~USART_CR2_STOP_1;
-
-    // Set baud rate
-    int mantissa = 39;
-    int fraction = static_cast<int>(16 * 0.0625); // == 1
-    // 72M / (16*39.0625) = 115200
-    USART1->BRR = static_cast<uint16_t >(mantissa << 4 | fraction);
-
-    USART1->CR1 |= USART_CR1_UE /* Set UART Enable */
-                   | USART_CR1_TE /* Set Transmission Enable */
-                   | USART_CR1_TXEIE; /* Set TX buffer Empty Interrupt Enable */
-
-    char c = 'A';
-    tx_ready = 1;
-    while (run) {
-        // wait for TX to be ready
-        while (!tx_ready);
-        tx_ready = 0;
-
-        GPIO_SetBits(GPIOB, GPIO_Pin_All);
-        GPIO_ResetBits(GPIOB, GPIO_Pin_All);
-
-        USART1->DR = (uint16_t) c;
-        USART_ITConfig(USART1, USART_IT_TXE, ENABLE);
-
-        if (c == 'Z') {
-            c = 'a';
-        } else if (c == 'z') {
-            c = '0';
-        } else if (c == '9') {
-            c = '\n';
-        } else if (c == '\n') {
-            c = 'A';
-        } else {
-            c++;
-        }
-    }
-
-    return 0;
-}
-
-extern "C"
-void USART1_IRQHandler() {
-    tx_ready = 1;
-
-    if (USART_GetITStatus(USART1, USART_IT_TXE) == SET) {
-        // Disable the interrupt
-        USART_ITConfig(USART1, USART_IT_TXE, DISABLE);
-    }
-}