-//! MSP430F2618 clock and I/O definitions
-
-// Included by other 2xx ports, such as the 2274.
+/*! \file stm32f407.h
+ \author Travis Goodspeed
+ \brief STM32F407 port definitions.
+*/
#include "platform.h"
+#include "stm32f4xx.h"
+//#include "stm322xg_eval.h"
+#include <stm32f4xx_gpio.h>
+#include <stm32f4xx_rcc.h>
+#include <stm32f4xx_usart.h>
+#include "stm32f4_discovery.h"
+
+void ioinit(){
+ GPIO_InitTypeDef GPIO_InitStructure;
+
+ /* GPIOD Periph clock enable */
+ RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOD, ENABLE);
+
+ /* Configure PD12, PD13, PD14 and PD15 in output pushpull mode */
+ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12 | GPIO_Pin_13| GPIO_Pin_14| GPIO_Pin_15;
+ GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
+ GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
+ GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+ GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
+ GPIO_Init(GPIOD, &GPIO_InitStructure);
+}
+
+void stmdelay(){
+ //IO so it doesn't get swapped out.
+ __IO uint32_t count= 0x1000; // >1kbit/s
+ //__IO uint32_t count= 0x100000; // 5 bits per second, for testing
+ while(count--);
+}
+
+/* Used for debugging only.
+
+void ledon(){
+ GPIO_SetBits(GPIOD, GPIO_Pin_14);
+}
+void ledoff(){
+ GPIO_ResetBits(GPIOD, GPIO_Pin_14);
+}
+void clkon(){
+ GPIO_SetBits(GPIOD, GPIO_Pin_12);
+}
+void clkoff(){
+ GPIO_ResetBits(GPIOD, GPIO_Pin_12);
+}
+
+
+
+void spibit(int one){
+ if(one) ledon();
+ else ledoff();
+ clkon();
+ stmdelay();
+ clkoff();
+ stmdelay();
+}
+
+void spiword(uint32_t word){
+ int i=32;
+ while(i--){
+ //morsebit(word&1);
+ //manchesterbit(word&1);
+ spibit(word&1);
+ word=(word>>1);
+ }
+}
+void spibyte(uint8_t word){
+ int i=8;
+ while(i--){
+ //morsebit(word&1);
+ //manchesterbit(word&1);
+ spibit(word&1);
+ word=(word>>1);
+ }
+}
+
+*/
+
+//! Count the length of a string.
+uint32_t strlen(const char *s){
+ int i=0;
+ while(s[i++]);
+ return i-1;
+}
+
+
+/**************************************************************************************/
+void Repair_Data();
+void RCC_Configuration(void)
+{
+ /* --------------------------- System Clocks Configuration -----------------*/
+ /* USART1 clock enable */
+ RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
+
+ /* GPIOB clock enable */
+ RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOB, ENABLE);
+}
+
+/**************************************************************************************/
+
+void GPIO_Configuration(void)
+{
+ GPIO_InitTypeDef GPIO_InitStructure;
+
+ /*-------------------------- GPIO Configuration ----------------------------*/
+ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7;
+ GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
+ GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
+ GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
+ GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+ GPIO_Init(GPIOB, &GPIO_InitStructure);
+
+ /* Connect USART pins to AF */
+ GPIO_PinAFConfig(GPIOB, GPIO_PinSource6, GPIO_AF_USART1); // USART1_TX
+ GPIO_PinAFConfig(GPIOB, GPIO_PinSource7, GPIO_AF_USART1); // USART1_RX
+}
+
+/**************************************************************************************/
+
+void USART1_Configuration(void)
+{
+ USART_InitTypeDef USART_InitStructure;
+
+ /* USARTx configuration ------------------------------------------------------*/
+ /* USARTx configured as follow:
+ - BaudRate = 115200 baud
+ - Word Length = 8 Bits
+ - One Stop Bit
+ - No parity
+ - Hardware flow control disabled (RTS and CTS signals)
+ - Receive and transmit enabled
+ */
+ //USART_InitStructure.USART_BaudRate = 9600;
+ //USART_InitStructure.USART_BaudRate = 10000; //Close enough to 9600
+ //USART_InitStructure.USART_BaudRate = 115200;
+ //USART_InitStructure.USART_BaudRate = 125200; //Close enough to 115200
+
+ //135000 is too high
+ //115200 is too low
+ USART_InitStructure.USART_BaudRate = 125000; //Close enough to 115200
+
+ USART_InitStructure.USART_WordLength = USART_WordLength_8b;
+ USART_InitStructure.USART_StopBits = USART_StopBits_1;
+ USART_InitStructure.USART_Parity = USART_Parity_No;
+ USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
+
+ USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
+
+ USART_Init(USART1, &USART_InitStructure);
+
+ USART_Cmd(USART1, ENABLE);
+}
+
+
+//! Initialize the USART
+void usartinit(){
+ RCC_Configuration();
+
+ GPIO_Configuration();
+
+ USART1_Configuration();
+}
+
+
+//! Initialize the STM32F4xx ports and USB.
+void stm32f4xx_init(){
+ int i=20;
+
+ SystemInit();
+ ioinit();
+ usartinit();
+
+ while(i--) stmdelay();
+
+ return;
+}
//! Receive a byte.
unsigned char serial0_rx(){
+ while(USART_GetFlagStatus(USART1, USART_FLAG_RXNE) == RESET); // Wait for Character
+ return USART_ReceiveData(USART1);
}
//! Receive a byte.
//! Transmit a byte.
void serial0_tx(unsigned char x){
-}
-//! Transmit a byte.
-void serial_tx_old(unsigned char x){
+
+ //Send through USART1 on PB6
+ while(USART_GetFlagStatus(USART1, USART_FLAG_TXE) == RESET); //original
+ USART_SendData(USART1, (uint16_t) x);
+
+ //Spare goes to SPI.
+ //spibyte(x);
}
//! Transmit a byte on the second UART.
}
-void msp430_init_uart(){
-}
+//Declarations
+void nmi_handler(void);
+void hardfault_handler(void);
+int main(void);
+//From min.s
+void Reset_Handler(void);
-//! Initialization is correct.
-void msp430_init_dco_done(){
-}
-
-//! Initialize the MSP430 clock.
-void msp430_init_dco() {
-}
-
+// Define the vector table
+unsigned int * myvectors[50]
+ __attribute__ ((section("vectors")))= {
+ (unsigned int *) 0x20000800, // stack pointer
+ (unsigned int *) Reset_Handler, // code entry point
+ (unsigned int *) main, // NMI handler (not really)
+ (unsigned int *) main, // hard fault handler (let's hope not)
+};
projects / goodfet / blobdiff