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Code Issues Wiki Activity

added single wire half duplex UART

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Conflicts:

	src/main/telemetry/telemetry.h
This commit is contained in:
Frank Zhao 2014-11-04 10:49:10 -08:00 • committed by Dominic Clifton
parent 0000d3e65e
commit 6311dc8f8c
7 changed files with 42 additions and 10 deletions
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1
src/main/drivers/serial.h
View file

@ -27,6 +27,7 @@ typedef enum portMode_t {
MODE_TX = 1 << 1,
MODE_RXTX = MODE_RX | MODE_TX,
MODE_SBUS = 1 << 2,
MODE_BIDIR = 1 << 3,
} portMode_t;
typedef void (*serialReceiveCallbackPtr)(uint16_t data); // used by serial drivers to return frames to app

11
src/main/drivers/serial_uart.c
View file

@ -59,6 +59,8 @@ static void uartReconfigure(uartPort_t *uartPort)
USART_InitStructure.USART_Mode |= USART_Mode_Rx;
if (uartPort->port.mode & MODE_TX)
USART_InitStructure.USART_Mode |= USART_Mode_Tx;
if (uartPort->port.mode & MODE_BIDIR)
USART_InitStructure.USART_Mode |= USART_Mode_Tx | USART_Mode_Rx;
USART_Init(uartPort->USARTx, &USART_InitStructure);
USART_Cmd(uartPort->USARTx, ENABLE);
@ -111,7 +113,7 @@ serialPort_t *uartOpen(USART_TypeDef *USARTx, serialReceiveCallbackPtr callback,
// Receive DMA or IRQ
DMA_InitTypeDef DMA_InitStructure;
if (mode & MODE_RX) {
if ((mode & MODE_RX) || (mode & MODE_BIDIR)) {
if (s->rxDMAChannel) {
DMA_StructInit(&DMA_InitStructure);
DMA_InitStructure.DMA_PeripheralBaseAddr = s->rxDMAPeripheralBaseAddr;
@ -138,7 +140,7 @@ serialPort_t *uartOpen(USART_TypeDef *USARTx, serialReceiveCallbackPtr callback,
}
// Transmit DMA or IRQ
if (mode & MODE_TX) {
if ((mode & MODE_TX) || (mode & MODE_BIDIR)) {
if (s->txDMAChannel) {
DMA_StructInit(&DMA_InitStructure);
DMA_InitStructure.DMA_PeripheralBaseAddr = s->txDMAPeripheralBaseAddr;
@ -165,6 +167,11 @@ serialPort_t *uartOpen(USART_TypeDef *USARTx, serialReceiveCallbackPtr callback,
USART_Cmd(s->USARTx, ENABLE);
if (mode & MODE_BIDIR)
USART_HalfDuplexCmd(s->USARTx, ENABLE);
else
USART_HalfDuplexCmd(s->USARTx, DISABLE);
return (serialPort_t *)s;
}

9
src/main/drivers/serial_uart_stm32f10x.c
View file

@ -110,6 +110,9 @@ uartPort_t *serialUSART1(uint32_t baudRate, portMode_t mode)
gpio.mode = Mode_AF_PP;
if (mode & MODE_TX)
gpioInit(GPIOA, &gpio);
gpio.mode = Mode_AF_OD;
if (mode & MODE_BIDIR)
gpioInit(GPIOA, &gpio);
gpio.pin = Pin_10;
gpio.mode = Mode_IPU;
if (mode & MODE_RX)
@ -192,6 +195,9 @@ uartPort_t *serialUSART2(uint32_t baudRate, portMode_t mode)
gpio.mode = Mode_AF_PP;
if (mode & MODE_TX)
gpioInit(GPIOA, &gpio);
gpio.mode = Mode_AF_OD;
if (mode & MODE_BIDIR)
gpioInit(GPIOA, &gpio);
gpio.pin = Pin_3;
gpio.mode = Mode_IPU;
if (mode & MODE_RX)
@ -254,6 +260,9 @@ uartPort_t *serialUSART3(uint32_t baudRate, portMode_t mode)
gpio.mode = Mode_AF_PP;
if (mode & MODE_TX)
gpioInit(USART3_GPIO, &gpio);
gpio.mode = Mode_AF_OD;
if (mode & MODE_BIDIR)
gpioInit(USART3_GPIO, &gpio);
gpio.pin = USART3_RX_PIN;
gpio.mode = Mode_IPU;
if (mode & MODE_RX)

14
src/main/drivers/serial_uart_stm32f30x.c
View file

@ -106,6 +106,13 @@ uartPort_t *serialUSART1(uint32_t baudRate, portMode_t mode)
GPIO_Init(UART1_GPIO, &GPIO_InitStructure);
}
if (mode & MODE_BIDIR) {
GPIO_InitStructure.GPIO_Pin = UART1_TX_PIN;
GPIO_InitStructure.GPIO_OType = GPIO_OType_OD;
GPIO_PinAFConfig(UART1_GPIO, UART1_TX_PINSOURCE, GPIO_AF_7);
GPIO_Init(UART1_GPIO, &GPIO_InitStructure);
}
// DMA TX Interrupt
NVIC_InitStructure.NVIC_IRQChannel = DMA1_Channel4_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = NVIC_PRIORITY_BASE(NVIC_PRIO_SERIALUART1_TXDMA);
@ -176,6 +183,13 @@ uartPort_t *serialUSART2(uint32_t baudRate, portMode_t mode)
GPIO_Init(UART2_GPIO, &GPIO_InitStructure);
}
if (mode & MODE_BIDIR) {
GPIO_InitStructure.GPIO_Pin = UART2_TX_PIN;
GPIO_InitStructure.GPIO_OType = GPIO_OType_OD;
GPIO_PinAFConfig(UART2_GPIO, UART2_TX_PINSOURCE, GPIO_AF_7);
GPIO_Init(UART2_GPIO, &GPIO_InitStructure);
}
#ifdef USE_USART2_TX_DMA
// DMA TX Interrupt
NVIC_InitStructure.NVIC_IRQChannel = DMA1_Channel7_IRQn;

12
src/main/io/serial.c
View file

@ -80,8 +80,8 @@ static serialPortFunction_t serialPortFunctions[SERIAL_PORT_COUNT] = {
static const serialPortConstraint_t serialPortConstraints[SERIAL_PORT_COUNT] = {
{SERIAL_PORT_USB_VCP, 9600, 115200, SPF_NONE },
{SERIAL_PORT_USART1, 9600, 115200, SPF_NONE | SPF_SUPPORTS_SBUS_MODE },
{SERIAL_PORT_USART2, 9600, 115200, SPF_SUPPORTS_CALLBACK | SPF_SUPPORTS_SBUS_MODE},
{SERIAL_PORT_USART1, 9600, 115200, SPF_NONE | SPF_SUPPORTS_SBUS_MODE | SPF_SUPPORTS_BIDIR_MODE},
{SERIAL_PORT_USART2, 9600, 115200, SPF_SUPPORTS_CALLBACK | SPF_SUPPORTS_SBUS_MODE | SPF_SUPPORTS_BIDIR_MODE},
#if (SERIAL_PORT_COUNT > 3)
{SERIAL_PORT_USART3, 9600, 19200, SPF_SUPPORTS_CALLBACK},
{SERIAL_PORT_USART4, 9600, 19200, SPF_SUPPORTS_CALLBACK}
@ -98,8 +98,8 @@ static serialPortFunction_t serialPortFunctions[SERIAL_PORT_COUNT] = {
};
static const serialPortConstraint_t serialPortConstraints[SERIAL_PORT_COUNT] = {
{SERIAL_PORT_USART1, 9600, 115200, SPF_NONE | SPF_SUPPORTS_SBUS_MODE },
{SERIAL_PORT_USART3, 9600, 115200, SPF_SUPPORTS_CALLBACK | SPF_SUPPORTS_SBUS_MODE},
{SERIAL_PORT_USART1, 9600, 115200, SPF_NONE | SPF_SUPPORTS_SBUS_MODE | SPF_SUPPORTS_BIDIR_MODE},
{SERIAL_PORT_USART3, 9600, 115200, SPF_SUPPORTS_CALLBACK | SPF_SUPPORTS_SBUS_MODE | SPF_SUPPORTS_BIDIR_MODE},
{SERIAL_PORT_SOFTSERIAL1, 9600, 19200, SPF_SUPPORTS_CALLBACK | SPF_IS_SOFTWARE_INVERTABLE}
};
#else
@ -114,8 +114,8 @@ static serialPortFunction_t serialPortFunctions[SERIAL_PORT_COUNT] = {
};
static const serialPortConstraint_t serialPortConstraints[SERIAL_PORT_COUNT] = {
{SERIAL_PORT_USART1, 9600, 115200, SPF_NONE | SPF_SUPPORTS_SBUS_MODE },
{SERIAL_PORT_USART2, 9600, 115200, SPF_SUPPORTS_CALLBACK | SPF_SUPPORTS_SBUS_MODE},
{SERIAL_PORT_USART1, 9600, 115200, SPF_NONE | SPF_SUPPORTS_SBUS_MODE | SPF_SUPPORTS_BIDIR_MODE},
{SERIAL_PORT_USART2, 9600, 115200, SPF_SUPPORTS_CALLBACK | SPF_SUPPORTS_SBUS_MODE | SPF_SUPPORTS_BIDIR_MODE},
#if (SERIAL_PORT_COUNT > 2)
{SERIAL_PORT_SOFTSERIAL1, 9600, 19200, SPF_SUPPORTS_CALLBACK | SPF_IS_SOFTWARE_INVERTABLE},
{SERIAL_PORT_SOFTSERIAL2, 9600, 19200, SPF_SUPPORTS_CALLBACK | SPF_IS_SOFTWARE_INVERTABLE}

3
src/main/io/serial.h
View file

@ -116,7 +116,8 @@ typedef enum {
SPF_NONE = 0,
SPF_SUPPORTS_CALLBACK = (1 << 0),
SPF_SUPPORTS_SBUS_MODE = (1 << 1),
SPF_IS_SOFTWARE_INVERTABLE = (1 << 2)
SPF_SUPPORTS_BIDIR_MODE = (1 << 2),
SPF_IS_SOFTWARE_INVERTABLE = (1 << 3)
} serialPortFeature_t;
typedef struct serialPortConstraint_s {