void usbuart_set_line_coding(struct usb_cdc_line_coding *coding)
{
usart_set_baudrate(USBUSART, coding->dwDTERate);
usart_set_databits(USBUSART, coding->bDataBits);
switch(coding->bCharFormat) {
case 0:
usart_set_stopbits(USBUSART, USART_STOPBITS_1);
break;
case 1:
usart_set_stopbits(USBUSART, USART_STOPBITS_1_5);
break;
case 2:
usart_set_stopbits(USBUSART, USART_STOPBITS_2);
break;
}
switch(coding->bParityType) {
case 0:
usart_set_parity(USBUSART, USART_PARITY_NONE);
break;
case 1:
usart_set_parity(USBUSART, USART_PARITY_ODD);
break;
case 2:
usart_set_parity(USBUSART, USART_PARITY_EVEN);
break;
}
}
void uart_periph_set_bits_stop_parity(struct uart_periph *p, uint8_t bits, uint8_t stop, uint8_t parity)
{
/* Configure USART parity and data bits */
if (parity == UPARITY_EVEN) {
usart_set_parity((uint32_t)p->reg_addr, USART_PARITY_EVEN);
if (bits == UBITS_7) {
usart_set_databits((uint32_t)p->reg_addr, 8);
} else { // 8 data bits by default
usart_set_databits((uint32_t)p->reg_addr, 9);
}
} else if (parity == UPARITY_ODD) {
usart_set_parity((uint32_t)p->reg_addr, USART_PARITY_ODD);
if (bits == UBITS_7) {
usart_set_databits((uint32_t)p->reg_addr, 8);
} else { // 8 data bits by default
usart_set_databits((uint32_t)p->reg_addr, 9);
}
} else { // 8 data bist, NO_PARITY by default
usart_set_parity((uint32_t)p->reg_addr, USART_PARITY_NONE);
usart_set_databits((uint32_t)p->reg_addr, 8); // is 7bits without parity possible ?
}
/* Configure USART stop bits */
if (stop == USTOP_2) {
usart_set_stopbits((uint32_t)p->reg_addr, USART_STOPBITS_2);
} else { // 1 stop bit by default
usart_set_stopbits((uint32_t)p->reg_addr, USART_STOPBITS_1);
}
}
void UART_SetFormat(int bits, uart_parity parity, uart_stopbits stopbits)
{
// STM counts parity bit as part of databits length
// so bits and parity settings are interdependent.
if (bits == 8) {
if (parity == UART_PARITY_NONE) {
usart_set_databits(UART_CFG.uart, 8);
usart_set_parity(UART_CFG.uart, USART_PARITY_NONE);
} else {
usart_set_databits(UART_CFG.uart, 9);
if (parity == UART_PARITY_EVEN)
usart_set_parity(UART_CFG.uart, USART_PARITY_EVEN);
else
usart_set_parity(UART_CFG.uart, USART_PARITY_ODD);
}
} else if (bits == 7 && parity != UART_PARITY_NONE) {
usart_set_databits(UART_CFG.uart, 8);
if (parity == UART_PARITY_EVEN)
usart_set_parity(UART_CFG.uart, USART_PARITY_EVEN);
else
usart_set_parity(UART_CFG.uart, USART_PARITY_ODD);
}
switch (stopbits) {
case UART_STOPBITS_1: usart_set_stopbits(UART_CFG.uart, USART_STOPBITS_1); break;
case UART_STOPBITS_1_5: usart_set_stopbits(UART_CFG.uart, USART_STOPBITS_1_5); break;
case UART_STOPBITS_2: usart_set_stopbits(UART_CFG.uart, USART_STOPBITS_2); break;
}
}
void UART_Initialize()
{
/* Enable clocks for GPIO port containing _USART and USART */
rcc_peripheral_enable_clock(&_USART_RCC_APB_ENR_IOP, _USART_RCC_APB_ENR_IOP_EN);
rcc_peripheral_enable_clock(&_USART_RCC_APB_ENR_USART, _USART_RCC_APB_ENR_USART_EN);
/* Enable DMA clock */
// TODO ENABLED ALREADY FOR ADC?
rcc_peripheral_enable_clock(&RCC_AHBENR, _RCC_AHBENR_DMAEN);
/* Setup GPIO pin GPIO_USARTX_TX on USART GPIO port for transmit. */
gpio_set_mode(_USART_GPIO, GPIO_MODE_OUTPUT_50_MHZ,
GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, _USART_GPIO_USART_TX);
//gpio_set_mode(GPIOA, GPIO_MODE_INPUT, GPIO_CNF_INPUT_FLOAT,
//GPIO_USART1_RX);
/* Setup UART parameters. */
usart_set_baudrate(_USART, 115200);
usart_set_databits(_USART, 8);
usart_set_stopbits(_USART, USART_STOPBITS_1);
usart_set_mode(_USART, USART_MODE_TX);
usart_set_parity(_USART, USART_PARITY_NONE);
usart_set_flow_control(_USART, USART_FLOWCONTROL_NONE);
//usart_set_mode(USART1, USART_MODE_TX_RX);
/* Finally enable the USART. */
usart_enable(_USART);
nvic_set_priority(_USART_NVIC_DMA_CHANNEL_IRQ, 3);
nvic_enable_irq(_USART_NVIC_DMA_CHANNEL_IRQ);
#if HAS_AUDIO_UART5
/* Enable clocks for GPIO port C (for GPIO_UART5_TX) and UART5. */
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN);
rcc_peripheral_enable_clock(&RCC_APB1ENR, RCC_APB1ENR_UART5EN);
/* Setup GPIO pins to use UART5 */
gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_50_MHZ,
GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_UART5_TX);
/* Setup UART5 parameters. */
usart_set_baudrate(UART5, 9600);
usart_set_databits(UART5, 8);
usart_set_stopbits(UART5, USART_STOPBITS_1);
usart_set_parity(UART5, USART_PARITY_NONE);
usart_set_mode(UART5, USART_MODE_TX);
/* Finally enable the UART5. */
usart_enable(UART5);
#endif
}
void mew_bluetooth_init(void) {
gpio_mode_setup(MEW_BLUETOOTH_POWER_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, MEW_BLUETOOTH_POWER_PIN);
gpio_set_output_options(MEW_BLUETOOTH_POWER_PORT, GPIO_OTYPE_PP, GPIO_OSPEED_100MHZ, MEW_BLUETOOTH_POWER_PIN);
gpio_clear(MEW_BLUETOOTH_POWER_PORT, MEW_BLUETOOTH_POWER_PIN);
gpio_mode_setup(MEW_BLUETOOTH_RESET_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, MEW_BLUETOOTH_RESET_PIN);
gpio_set_output_options(MEW_BLUETOOTH_RESET_PORT, GPIO_OTYPE_PP, GPIO_OSPEED_100MHZ, MEW_BLUETOOTH_RESET_PIN);
gpio_set(MEW_BLUETOOTH_RESET_PORT, MEW_BLUETOOTH_RESET_PIN);
gpio_mode_setup(MEW_BLUETOOTH_PORT, GPIO_MODE_AF, GPIO_PUPD_NONE, MEW_BLUETOOTH_PIN);
gpio_set_af(MEW_BLUETOOTH_PORT, MEW_BLUETOOTH_PORT_AF, MEW_BLUETOOTH_PIN);
usart_disable(MEW_BLUETOOTH_USART);
usart_set_baudrate(MEW_BLUETOOTH_USART, MEW_BLUETOOTH_SPEED);
usart_set_databits(MEW_BLUETOOTH_USART, 8);
usart_set_stopbits(MEW_BLUETOOTH_USART, USART_STOPBITS_1);
usart_set_mode(MEW_BLUETOOTH_USART, USART_MODE_TX_RX);
usart_set_parity(MEW_BLUETOOTH_USART, USART_PARITY_NONE);
usart_set_flow_control(MEW_BLUETOOTH_USART, USART_FLOWCONTROL_NONE);
usart_enable_rx_interrupt(MEW_BLUETOOTH_USART);
usart_disable_tx_interrupt(MEW_BLUETOOTH_USART);
usart_enable_tx_dma(MEW_BLUETOOTH_USART);
usart_enable(MEW_BLUETOOTH_USART);
nvic_enable_irq(MEW_BLUETOOTH_IRQ);
nvic_enable_irq(MEW_BLUETOOTH_DMA_NVIC_TX);
memset(_mew_bt_buffer, 0, MEW_BT_RECEIVE_BUFFER_SIZE);
}
/**
* Initializes the clocks, the UART peripheral, and the RX and TX buffer
* structures.
*/
static void comm_init(void)
{
os_char_buffer_init(&bsp_rx_buffer,
rx_buffer_mem,
BSP_RX_BUFFER_SIZE,
NULL);
os_char_buffer_init(&bsp_tx_buffer,
tx_buffer_mem,
BSP_TX_BUFFER_SIZE,
enable_usart1_tx_interrupt);
rcc_periph_clock_enable(RCC_GPIOA);
rcc_periph_clock_enable(RCC_USART1);
gpio_mode_setup(GPIOA, GPIO_MODE_AF, GPIO_PUPD_PULLUP, GPIO9 | GPIO10);
gpio_set_af(GPIOA, GPIO_AF1, GPIO9 | GPIO10);
usart_set_baudrate(USART1, 115200);
usart_set_databits(USART1, 8);
usart_set_flow_control(USART1, USART_FLOWCONTROL_NONE);
usart_set_mode(USART1, USART_MODE_TX_RX);
usart_set_parity(USART1, USART_PARITY_NONE);
usart_set_stopbits(USART1, USART_CR2_STOP_1_0BIT);
usart_enable_rx_interrupt(USART1);
usart_enable(USART1);
nvic_set_priority(NVIC_USART1_IRQ, 0);
nvic_enable_irq(NVIC_USART1_IRQ);
}
void usart_setup(void)
{
/* Setup clock */
/* Enable GPIOA clock for USART. */
rcc_peripheral_enable_clock(&RCC_AHB1ENR, RCC_AHB1ENR_IOPAEN);
/* Enable clocks for USART2. */
rcc_peripheral_enable_clock(&RCC_APB1ENR, RCC_APB1ENR_USART2EN);
/* Setup GPIO pins for USART2 transmit. */
gpio_mode_setup(GPIOA, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO2);
/* Setup USART2 TX pin as alternate function. */
gpio_set_af(GPIOA, GPIO_AF7, GPIO2);
/* Setup USART2 parameters. */
usart_set_baudrate(USART2, 115200);
usart_set_databits(USART2, 8);
usart_set_stopbits(USART2, USART_STOPBITS_1);
usart_set_mode(USART2, USART_MODE_TX);
usart_set_parity(USART2, USART_PARITY_NONE);
usart_set_flow_control(USART2, USART_FLOWCONTROL_NONE);
/* Finally enable the USART. */
usart_enable(USART2);
}
void usart_init( int baudrate )
{
gpio_set_mode(GPIOA, GPIO_MODE_INPUT, GPIO_CNF_INPUT_FLOAT, GPIO_USART1_RX);
gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ, GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART1_TX);
#ifdef BUFFERED
buffer_reset (&u1rx);
buffer_reset (&u1tx);
nvic_enable_irq(NVIC_USART1_IRQ);
usart_enable_rx_interrupt(USART1);
usart_disable_tx_interrupt(USART1);
#endif
// usart peripheral confguration
usart_set_baudrate(USART1, baudrate);
usart_set_databits(USART1, 8);
usart_set_parity(USART1, USART_PARITY_NONE);
usart_set_mode(USART1, USART_MODE_TX_RX);
usart_set_stopbits(USART1, USART_STOPBITS_1);
usart_set_flow_control(USART1, USART_FLOWCONTROL_NONE);
usart_enable(USART1);
}
void
uart_cinit(void *config)
{
usart = (uint32_t)config;
/* board is expected to do pin and clock setup */
/* do usart setup */
//USART_CR1(usart) |= (1 << 15); /* because libopencm3 doesn't know the OVER8 bit */
usart_set_baudrate(usart, 115200);
usart_set_databits(usart, 8);
usart_set_stopbits(usart, USART_STOPBITS_1);
usart_set_mode(usart, USART_MODE_TX_RX);
usart_set_parity(usart, USART_PARITY_NONE);
usart_set_flow_control(usart, USART_FLOWCONTROL_NONE);
/* and enable */
usart_enable(usart);
#if 0
usart_send_blocking(usart, 'B');
usart_send_blocking(usart, 'B');
usart_send_blocking(usart, 'B');
usart_send_blocking(usart, 'B');
while (true) {
int c;
c = usart_recv_blocking(usart);
usart_send_blocking(usart, c);
}
#endif
}
static void usart_setup(void)
{
/* Initialize output ring buffer. */
ring_init(&output_ring, output_ring_buffer, BUFFER_SIZE);
/* Enable the USART2 interrupt. */
nvic_enable_irq(NVIC_USART2_IRQ);
/* Setup GPIO pin GPIO_USART2_TX on GPIO port A for transmit. */
gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ,
GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART2_TX);
/* Setup GPIO pin GPIO_USART2_RX on GPIO port A for receive. */
gpio_set_mode(GPIOA, GPIO_MODE_INPUT,
GPIO_CNF_INPUT_FLOAT, GPIO_USART2_RX);
/* Setup UART parameters. */
usart_set_baudrate(USART2, 230400);
usart_set_databits(USART2, 8);
usart_set_stopbits(USART2, USART_STOPBITS_1);
usart_set_parity(USART2, USART_PARITY_NONE);
usart_set_flow_control(USART2, USART_FLOWCONTROL_NONE);
usart_set_mode(USART2, USART_MODE_TX_RX);
/* Enable USART2 Receive interrupt. */
USART_CR1(USART2) |= USART_CR1_RXNEIE;
/* Finally enable the USART. */
usart_enable(USART2);
}
/******************************************************************************
Initialize the hardware to receive (USART based) CAN messages and start the
timer for the CANopen stack.
INPUT bitrate bitrate in kilobit (fixed at 115200)
OUTPUT 1 if successful
******************************************************************************/
unsigned char canInit(unsigned int bitrate)
{
msg_recv_status = 0;
msg_received = 0;
/* Enable clocks for GPIO port A (for GPIO_USART1_TX) and USART1. */
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN |
RCC_APB2ENR_AFIOEN | RCC_APB2ENR_USART1EN);
/* Enable the USART1 interrupt. */
nvic_enable_irq(NVIC_USART1_IRQ);
/* Setup GPIO pin GPIO_USART1_RE_TX on GPIO port A for transmit. */
gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ,
GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART1_TX);
/* Setup GPIO pin GPIO_USART1_RE_RX on GPIO port A for receive. */
gpio_set_mode(GPIOA, GPIO_MODE_INPUT,
GPIO_CNF_INPUT_FLOAT, GPIO_USART1_RX);
/* Setup USART parameters. */
usart_set_baudrate(USART1, 115200);
usart_set_databits(USART1, 8);
usart_set_stopbits(USART1, USART_STOPBITS_1);
usart_set_parity(USART1, USART_PARITY_NONE);
usart_set_flow_control(USART1, USART_FLOWCONTROL_NONE);
usart_set_mode(USART1, USART_MODE_TX_RX);
/* Enable USART1 receive interrupts. */
usart_enable_rx_interrupt(USART1);
usart_disable_tx_interrupt(USART1);
/* Finally enable the USART. */
usart_enable(USART1);
/* Initialise the send and receive buffers */
buffer_init(send_buffer,BUFFER_SIZE);
buffer_init(receive_buffer,BUFFER_SIZE);
return 1;
}
void usart_setup(void)
{
/* Enable all required USART modules */
rcc_periph_clock_enable(USART_RCC_PORT);
rcc_periph_clock_enable(USART_RCC_ID);
/* Setup GPIO pins for USART transmit. */
gpio_mode_setup(USART_PORT, GPIO_MODE_AF, GPIO_PUPD_NONE, USART_RX);
gpio_mode_setup(USART_PORT, GPIO_MODE_AF, GPIO_PUPD_NONE, USART_TX);
// gpio_set_output_options(USART_PORT, GPIO_OTYPE_OD, GPIO_OSPEED_25MHZ, USART_TX);
/* Setup USART TX pin as alternate function. */
gpio_set_af(USART_PORT, GPIO_AF7, USART_RX);
gpio_set_af(USART_PORT, GPIO_AF7, USART_TX);
/* Setup USART parameters. */
usart_set_baudrate(USART_ID, USART_BAUD_RATE);
usart_set_databits(USART_ID, 8);
usart_set_stopbits(USART_ID, USART_STOPBITS_1);
usart_set_mode(USART_ID, USART_MODE_TX_RX);
usart_set_parity(USART_ID, USART_PARITY_NONE);
usart_set_flow_control(USART_ID, USART_FLOWCONTROL_NONE);
/* Finally enable the USART. */
usart_enable(USART_ID);
}
static void usart_setup(void)
{
/* Enable the USART1 interrupt. */
nvic_enable_irq(NVIC_USART1_IRQ);
/* Enable USART1 pin software remapping. */
AFIO_MAPR |= AFIO_MAPR_USART1_REMAP;
/* Setup GPIO pin GPIO_USART1_RE_TX on GPIO port B for transmit. */
gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_50_MHZ,
GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART1_RE_TX);
/* Setup GPIO pin GPIO_USART1_RE_RX on GPIO port B for receive. */
gpio_set_mode(GPIOB, GPIO_MODE_INPUT,
GPIO_CNF_INPUT_FLOAT, GPIO_USART1_RE_RX);
/* Setup UART parameters. */
usart_set_baudrate(USART1, 230400);
usart_set_databits(USART1, 8);
usart_set_stopbits(USART1, USART_STOPBITS_1);
usart_set_parity(USART1, USART_PARITY_NONE);
usart_set_flow_control(USART1, USART_FLOWCONTROL_NONE);
usart_set_mode(USART1, USART_MODE_TX_RX);
/* Enable USART1 Receive interrupt. */
USART_CR1(USART1) |= USART_CR1_RXNEIE;
/* Finally enable the USART. */
usart_enable(USART1);
}
void dbg_serial_init(void)
{
dbg_fifo_flush( &usart_rx_buf );
dbg_fifo_flush( &usart_tx_buf );
rcc_periph_clock_enable(RCC_AFIO);
rcc_periph_clock_enable(DBG_USART_PERIPH);
rcc_periph_clock_enable(DBG_USART_TX_PERIPH);
#if (DBG_USART_RX_PERIPH != DBG_USART_TX_PERIPH)
rcc_periph_clock_enable(DBG_USART_RX_PERIPH);
#endif
/* Enable the DBG_USART interrupt. */
nvic_enable_irq(DBG_USART_VECTOR);
/* Setup GPIO pins for USART transmit. */
gpio_set_mode(DBG_USART_TX_PORT, GPIO_MODE_OUTPUT_50_MHZ, GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, DBG_USART_TX_PIN);
/* Setup GPIO pins for USART receive. */
gpio_set_mode(DBG_USART_RX_PORT, GPIO_MODE_INPUT, GPIO_CNF_INPUT_PULL_UPDOWN, DBG_USART_RX_PIN);
gpio_set(DBG_USART_RX_PORT, DBG_USART_RX_PIN);
/* Setup USART parameters. */
usart_set_baudrate (DBG_USART, 57600);
usart_set_databits (DBG_USART, 8);
usart_set_stopbits (DBG_USART, USART_STOPBITS_1);
usart_set_mode (DBG_USART, USART_MODE_TX_RX);
usart_set_parity (DBG_USART, USART_PARITY_NONE);
usart_set_flow_control(DBG_USART, USART_FLOWCONTROL_NONE);
/* Enable USART Receive interrupt. */
usart_enable_rx_interrupt(DBG_USART);
/* Finally enable the USART. */
usart_enable(DBG_USART);
}
void usart_setup(void) {
/* Enable clocks for GPIO port B (for GPIO_USART1_TX) and USART1. */
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPBEN);
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_AFIOEN);
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_USART1EN);
gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_50_MHZ,
GPIO_CNF_OUTPUT_PUSHPULL, GPIO5);
gpio_clear(GPIOB, GPIO5);
AFIO_MAPR |= AFIO_MAPR_USART1_REMAP;
gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_50_MHZ,
GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART1_RE_TX);
gpio_set_mode(GPIOB, GPIO_MODE_INPUT,
GPIO_CNF_INPUT_FLOAT, GPIO_USART1_RE_RX);
/* Setup UART parameters. */
usart_set_baudrate(USART1, 115200);
usart_set_databits(USART1, 8);
usart_set_stopbits(USART1, USART_STOPBITS_1);
usart_set_mode(USART1, USART_MODE_TX_RX);
usart_set_parity(USART1, USART_PARITY_NONE);
usart_set_flow_control(USART1, USART_FLOWCONTROL_NONE);
/* Finally enable the USART. */
usart_enable(USART1);
}
void usart_setup(void)
{
/* Enable clocks for GPIO port A (for GPIO_USART1_TX) and USART1. */
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN |
RCC_APB2ENR_AFIOEN | RCC_APB2ENR_USART1EN);
/* Enable the USART1 interrupt. */
nvic_enable_irq(NVIC_USART1_IRQ);
/* Setup GPIO pin GPIO_USART1_RE_TX on GPIO port A for transmit. */
gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ,
GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART1_TX);
/* Setup GPIO pin GPIO_USART1_RE_RX on GPIO port A for receive. */
gpio_set_mode(GPIOA, GPIO_MODE_INPUT,
GPIO_CNF_INPUT_FLOAT, GPIO_USART1_RX);
/* Setup UART parameters. */
usart_set_baudrate(USART1, 115200);
usart_set_databits(USART1, 8);
usart_set_stopbits(USART1, USART_STOPBITS_1);
usart_set_parity(USART1, USART_PARITY_NONE);
usart_set_flow_control(USART1, USART_FLOWCONTROL_NONE);
usart_set_mode(USART1, USART_MODE_TX_RX);
/* Enable USART1 receive interrupts. */
usart_enable_rx_interrupt(USART1);
usart_disable_tx_interrupt(USART1);
/* Finally enable the USART. */
usart_enable(USART1);
}
/* Set up all the peripherals */
void setup(void)
{
rcc_clock_setup_in_hsi_out_48mhz();
rcc_peripheral_enable_clock(&RCC_APB2ENR,
RCC_APB2ENR_IOPAEN |
RCC_APB2ENR_IOPBEN |
RCC_APB2ENR_AFIOEN |
RCC_APB2ENR_USART1EN);
/* GPIO pin for the LED */
gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_2_MHZ,
GPIO_CNF_OUTPUT_PUSHPULL, GPIO2);
/* GPIO pin for USART TX */
gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ,
GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO9);
/* Setup USART parameters. */
usart_set_baudrate(USART1, 19200);
usart_set_databits(USART1, 8);
usart_set_stopbits(USART1, USART_STOPBITS_1);
usart_set_parity(USART1, USART_PARITY_NONE);
usart_set_flow_control(USART1, USART_FLOWCONTROL_NONE);
usart_set_mode(USART1, USART_MODE_TX);
/* Finally enable the USART. */
usart_enable(USART1);
}
void bluetooth_init(void)
{
rcc_periph_clock_enable(RCC_B_WAKE_SW_PORT);
rcc_periph_clock_enable(RCC_B_WAKE_HW_PORT);
rcc_periph_clock_enable(RCC_B_CMD_PORT);
gpio_mode_setup(B_WAKE_SW_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, B_WAKE_SW_PIN);
gpio_mode_setup(B_WAKE_HW_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, B_WAKE_HW_PIN);
gpio_mode_setup(B_CMD_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, B_CMD_PIN);
//uart
rcc_periph_clock_enable(RCC_B_USART);
gpio_mode_setup(B_USART_PORT, GPIO_MODE_AF, GPIO_PUPD_NONE, B_USART_TX_PIN|B_USART_RX_PIN);
gpio_set_af(B_USART_PORT, GPIO_AF1, B_USART_TX_PIN|B_USART_RX_PIN);
usart_set_baudrate(B_USART, 115200);//9600 );
usart_set_databits(B_USART, 8);
usart_set_stopbits(B_USART, USART_CR2_STOP_1_0BIT);
usart_set_mode(B_USART, USART_MODE_TX_RX);
usart_set_parity(B_USART, USART_PARITY_NONE);
usart_set_flow_control(B_USART, USART_FLOWCONTROL_NONE);
usart_enable(B_USART);
}
static void usart_setup(void)
{
/* Enable the USART2 interrupt. */
nvic_enable_irq(NVIC_USART2_IRQ);
/* Setup GPIO pins for USART2 transmit. */
gpio_mode_setup(GPIOA, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO2);
/* Setup GPIO pins for USART2 receive. */
gpio_mode_setup(GPIOA, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO3);
gpio_set_output_options(GPIOA, GPIO_OTYPE_OD, GPIO_OSPEED_25MHZ, GPIO3);
/* Setup USART2 TX and RX pin as alternate function. */
gpio_set_af(GPIOA, GPIO_AF7, GPIO2);
gpio_set_af(GPIOA, GPIO_AF7, GPIO3);
/* Setup USART2 parameters. */
usart_set_baudrate(USART2, 38400);
usart_set_databits(USART2, 8);
usart_set_stopbits(USART2, USART_STOPBITS_1);
usart_set_mode(USART2, USART_MODE_TX_RX);
usart_set_parity(USART2, USART_PARITY_NONE);
usart_set_flow_control(USART2, USART_FLOWCONTROL_NONE);
/* Enable USART2 Receive interrupt. */
usart_enable_rx_interrupt(USART2);
/* Finally enable the USART. */
usart_enable(USART2);
}
/**
* Set UART speed
* @param lc - UART parameters or NULL for value from cdcacm.c (started - B115200,8,N,1)
*/
void UART_setspeed(uint32_t UART) {
usart_set_baudrate(UART, 9600);
usart_set_databits(UART, 8);
usart_set_stopbits(UART, USART_STOPBITS_1);
usart_set_parity(UART, USART_PARITY_NONE);
usart_set_flow_control(UART, USART_FLOWCONTROL_NONE);
usart_set_mode(UART, USART_MODE_TX_RX);
}
/* Debug output over USART1. */
void usart_setup(void) {
usart_set_baudrate(USART1, 460800);
usart_set_databits(USART1, 8);
usart_set_stopbits(USART1, USART_STOPBITS_1);
usart_set_mode(USART1, USART_MODE_TX_RX);
usart_set_parity(USART1, USART_PARITY_NONE);
usart_set_flow_control(USART1, USART_FLOWCONTROL_NONE);
usart_enable(USART1);
}
/* Configure USART2 as a 38400, 8N1 serial port that has an interrupt
* driven receive function (transmit is blocking)
*/
void uart_setup(int baud)
{
/* Setup GPIO pins for USART2 transmit. */
gpio_mode_setup(GPIOC, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO6);
gpio_mode_setup(GPIOC, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO7);
gpio_set_output_options(GPIOC, GPIO_OTYPE_OD, GPIO_OSPEED_25MHZ, GPIO7);
gpio_set_af(GPIOC, GPIO_AF8, GPIO6);
gpio_set_af(GPIOC, GPIO_AF8, GPIO7);
/* Setup USART6 parameters. */
usart_set_baudrate(USART6, baud);
usart_set_databits(USART6, 8);
usart_set_stopbits(USART6, USART_STOPBITS_1);
usart_set_mode(USART6, USART_MODE_TX_RX);
usart_set_parity(USART6, USART_PARITY_NONE);
usart_set_flow_control(USART6, USART_FLOWCONTROL_NONE);
/* Allow for receive interrupts */
buf_ndx = 0;
read_ndx = 0;
nvic_enable_irq(NVIC_USART6_IRQ);
/* Finally enable the USART. */
usart_enable(USART6);
usart_enable_rx_interrupt(USART6);
/* Setup USART2 parameters. */
usart_set_baudrate(USART2, 38400);
usart_set_databits(USART2, 8);
usart_set_stopbits(USART2, USART_STOPBITS_1);
usart_set_mode(USART2, USART_MODE_TX_RX);
usart_set_parity(USART2, USART_PARITY_NONE);
usart_set_flow_control(USART2, USART_FLOWCONTROL_NONE);
/* Allow for receive interrupts */
buf_ndx = 0;
read_ndx = 0;
nvic_enable_irq(NVIC_USART2_IRQ);
/* Finally enable the USART. */
usart_enable(USART2);
usart_enable_rx_interrupt(USART2);
}
void serial_initialize(u32 baud)
{
usart_set_baudrate(USART, baud);
usart_set_databits(USART, 8);
usart_set_stopbits(USART, USART_STOPBITS_1);
usart_set_parity(USART, USART_PARITY_NONE);
usart_set_flow_control(USART, USART_FLOWCONTROL_NONE);
usart_enable(USART);
usart_enable_rx_interrupt(USART);
//usart_enable_tx_interrupt(USART);
}
void usart_setup(int baud)
{
usart_set_baudrate(USART2, baud);
usart_set_databits(USART2, 8);
usart_set_stopbits(USART2, USART_CR2_STOP_1_0BIT);
usart_set_mode(USART2, USART_MODE_TX_RX);
usart_set_parity(USART2, USART_PARITY_NONE);
usart_set_flow_control(USART2, USART_FLOWCONTROL_NONE);
usart_enable(USART2);
}
/**
* Initalize the Output (TX) mode only (log)
*/
static void usart_init(void)
{
usart_set_baudrate(USART6, 921600);
usart_set_databits(USART6, 8);
usart_set_flow_control(USART6, USART_FLOWCONTROL_NONE);
usart_set_mode(USART6, USART_MODE_TX);
usart_set_parity(USART6, USART_PARITY_NONE);
usart_set_stopbits(USART6, USART_STOPBITS_1);
usart_enable(USART6);
}
void usart_console_setup(void)
{
usart_set_baudrate(USART_CONSOLE, 115200);
usart_set_databits(USART_CONSOLE, 8);
usart_set_stopbits(USART_CONSOLE, USART_STOPBITS_1);
usart_set_mode(USART_CONSOLE, USART_MODE_TX);
usart_set_parity(USART_CONSOLE, USART_PARITY_NONE);
usart_set_flow_control(USART_CONSOLE, USART_FLOWCONTROL_NONE);
usart_enable(USART_CONSOLE);
}
static void platform_init_usart() {
/* USART initialization */
nvic_enable_irq(NVIC_USART1_IRQ);
nvic_set_priority(NVIC_USART1_IRQ, 64);
gpio_mode_setup(GPIOB, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO6);
gpio_mode_setup(GPIOB, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO7);
gpio_set_output_options(GPIOB, GPIO_OTYPE_OD, GPIO_OSPEED_25MHZ, GPIO7);
/* Setup USART1 TX and RX pin as alternate function. */
gpio_set_af(GPIOB, GPIO_AF7, GPIO6);
gpio_set_af(GPIOB, GPIO_AF7, GPIO7);
/* Setup USART2 parameters. */
usart_set_baudrate(USART1, config.console.baud);
usart_set_databits(USART1, config.console.data_bits);
switch (config.console.stop_bits) {
case 1:
usart_set_stopbits(USART1, USART_STOPBITS_1);
break;
default:
while (1);
}
usart_set_mode(USART1, USART_MODE_TX_RX);
switch (config.console.parity) {
case 'N':
usart_set_parity(USART1, USART_PARITY_NONE);
break;
case 'O':
usart_set_parity(USART1, USART_PARITY_ODD);
break;
case 'E':
usart_set_parity(USART1, USART_PARITY_EVEN);
break;
}
usart_set_flow_control(USART1, USART_FLOWCONTROL_NONE);
/* Finally enable the USART. */
usart_enable(USART1);
usart_rx_reset();
}
static void usart_setup(void)
{
/* Setup USART2 parameters. */
usart_set_baudrate(USART2, 115200);
usart_set_databits(USART2, 8);
usart_set_stopbits(USART2, USART_STOPBITS_1);
usart_set_mode(USART2, USART_MODE_TX_RX);
usart_set_parity(USART2, USART_PARITY_NONE);
usart_set_flow_control(USART2, USART_FLOWCONTROL_NONE);
/* Finally enable the USART. */
usart_enable(USART2);
}
void usart_peripheral_setup(void) {
gpio_mode_setup(GPIOA, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO9);
gpio_set_af(GPIOA, GPIO_AF7, GPIO9);
usart_set_baudrate(USART1, 38400);
usart_set_databits(USART1, 8);
usart_set_stopbits(USART1, USART_STOPBITS_1);
usart_set_mode(USART1, USART_MODE_TX);
usart_set_parity(USART1, USART_PARITY_NONE);
usart_set_flow_control(USART1, USART_FLOWCONTROL_NONE);
usart_enable(USART1);
}
static void usart_setup(void)
{
/* Setup USART2 parameters. */
usart_set_baudrate(USART1, 38400);
usart_set_databits(USART1, 8);
usart_set_parity(USART1, USART_PARITY_NONE);
usart_set_stopbits(USART1, USART_CR2_STOP_1_0BIT);
usart_set_mode(USART1, USART_MODE_TX);
usart_set_flow_control(USART1, USART_FLOWCONTROL_NONE);
/* Finally enable the USART. */
usart_enable(USART1);
}