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This commit is contained in:
Andreas Mieke 2018-03-18 23:43:59 +01:00
parent 4093cd295f
commit dc99dcf6e8
41 changed files with 1775 additions and 19 deletions
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111
Mieke/SW/ODD/io.c Normal file
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#include "io.h"
uint8_t i2c1_inited = 0;
uint8_t usart1_inited = 0;
uint8_t usart3_inited = 0;
void i2c1_init(void)
{
if (i2c1_inited == 1) {
return;
}
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C1, ENABLE);
GPIO_InitTypeDef gpio;
GPIO_StructInit(&gpio);
// SCL
gpio.GPIO_Mode = GPIO_Mode_AF_PP;
gpio.GPIO_Pin = GPIO_Pin_6;
GPIO_Init(GPIOB, &gpio);
// SDA
gpio.GPIO_Mode = GPIO_Mode_AF_OD;
gpio.GPIO_Pin = GPIO_Pin_7;
GPIO_Init(GPIOB, &gpio);
I2C_InitTypeDef i2c;
I2C_StructInit(&i2c);
i2c.I2C_ClockSpeed = 400000;
I2C_Init(I2C1, &i2c);
I2C_Cmd(I2C1, ENABLE);
i2c1_inited = 1;
}
void usart1_init(void)
{
if (usart1_inited == 1) {
return;
}
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
GPIO_InitTypeDef gpio;
GPIO_StructInit(&gpio);
// TxD
gpio.GPIO_Mode = GPIO_Mode_AF_PP;
gpio.GPIO_Pin = GPIO_Pin_9;
GPIO_Init(GPIOA, &gpio);
// RxD
gpio.GPIO_Mode = GPIO_Mode_IN_FLOATING;
gpio.GPIO_Pin = GPIO_Pin_10;
GPIO_Init(GPIOA, &gpio);
USART_InitTypeDef usart;
USART_StructInit(&usart);
usart.USART_BaudRate = 115200;
USART_Init(USART1, &usart);
USART_ClockInitTypeDef usartclock;
USART_ClockStructInit(&usartclock);
USART_ClockInit(USART1, &usartclock);
USART_Cmd(USART1, ENABLE);
usart1_inited = 1;
}
void usart3_init(void)
{
if (usart3_inited == 1) {
return;
}
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART3, ENABLE);
GPIO_InitTypeDef gpio;
GPIO_StructInit(&gpio);
// TxD
gpio.GPIO_Mode = GPIO_Mode_AF_PP;
gpio.GPIO_Pin = GPIO_Pin_10;
GPIO_Init(GPIOB, &gpio);
// RxD
gpio.GPIO_Mode = GPIO_Mode_IN_FLOATING;
gpio.GPIO_Pin = GPIO_Pin_11;
GPIO_Init(GPIOB, &gpio);
USART_InitTypeDef usart;
USART_StructInit(&usart);
usart.USART_BaudRate = 115200;
USART_Init(USART3, &usart);
USART_ClockInitTypeDef usartclock;
USART_ClockStructInit(&usartclock);
USART_ClockInit(USART3, &usartclock);
USART_Cmd(USART3, ENABLE);
usart3_inited = 1;
}
void USART_SendString(USART_TypeDef *USARTx, char *str)
{
while (*str) {
while (USART_GetFlagStatus(USARTx, USART_FLAG_TXE) == RESET);
USART_SendData(USARTx, *str++);
}
}