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wiced: implement h4_set_baudrate for STM32F205RGT6 - not working yet

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This commit is contained in:
Matthias Ringwald 2016-01-03 01:17:45 +01:00
parent 6838b8f107
commit 9d6d69d659
1 changed files with 42 additions and 3 deletions
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45
platform/wiced/hci_transport_h4_wiced.c
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@ -178,8 +178,42 @@ static wiced_result_t h4_tx_worker_send_packet(void * arg){
}
static int h4_set_baudrate(uint32_t baudrate){
#if 0
log_info("h4_set_baudrate %u", baudrate);
#ifdef _STM32F205RGT6_
// directly use STM peripheral functions to change baud rate dynamically
log_info("h4_set_baudrate %u", (int) baudrate);
const platform_gpio_t* gpio = wiced_bt_uart_pins[WICED_BT_PIN_UART_TX];
// set TX pin as GPIO
GPIO_InitTypeDef gpio_init_structure;
gpio_init_structure.GPIO_Speed = GPIO_Speed_50MHz;
gpio_init_structure.GPIO_Mode = GPIO_Mode_OUT;
gpio_init_structure.GPIO_OType = GPIO_OType_PP;
gpio_init_structure.GPIO_PuPd = GPIO_PuPd_NOPULL;
gpio_init_structure.GPIO_Pin = (uint32_t) ( 1 << gpio->pin_number );
GPIO_Init( gpio->port, &gpio_init_structure );
// disable USART
USART_InitTypeDef uart_init_structure;
USART_Cmd( wiced_bt_uart_peripheral->port, DISABLE );
// setup init structure
uart_init_structure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
uart_init_structure.USART_BaudRate = baudrate;
uart_init_structure.USART_WordLength = USART_WordLength_8b;
uart_init_structure.USART_StopBits = USART_StopBits_1;
USART_Init(wiced_bt_uart_peripheral->port, &uart_init_structure);
// enable USART again
USART_Cmd( wiced_bt_uart_peripheral->port, ENABLE );
// set TX pin as USART again
gpio_init_structure.GPIO_Mode = GPIO_Mode_AF;
GPIO_Init( gpio->port, &gpio_init_structure );
#else
log_error("h4_set_baudrate not implemented for this WICED Platform");
#endif
return 0;
}
@ -203,7 +237,12 @@ static int h4_open(void *transport_config){
platform_gpio_output_low(wiced_bt_control_pins[WICED_BT_PIN_DEVICE_WAKE]);
wiced_rtos_delay_milliseconds( 100 );
// init UART
// -- init UART
// configure TX pin as output and set to high to prevent dropping it during baud rate change
platform_gpio_init(wiced_bt_uart_pins[WICED_BT_PIN_UART_TX], OUTPUT_PUSH_PULL);
platform_gpio_output_high(wiced_bt_uart_pins[WICED_BT_PIN_UART_TX]);
#ifdef WICED_BT_UART_MANUAL_CTS_RTS
// configure RTS pin as output and set to high
platform_gpio_init(wiced_bt_uart_pins[WICED_BT_PIN_UART_RTS], OUTPUT_PUSH_PULL);