kingkevin
/
espressif_tinyusb
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

add uart sync support

This commit is contained in:
hathach 2019-11-26 18:21:46 +07:00
parent 387384c0d9
commit 4c9c13c767
2 changed files with 30 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
hw/bsp/samg55xplained/board.mk
View File

@ -20,10 +20,12 @@ SRC_C += \
$(ASF_DIR)/samg55/gcc/gcc/startup_samg55j19.c \
$(ASF_DIR)/samg55/gcc/system_samg55j19.c \
$(ASF_DIR)/hpl/core/hpl_init.c \
$(ASF_DIR)/hpl/usart/hpl_usart.c \
$(ASF_DIR)/hpl/pmc/hpl_pmc.c \
$(ASF_DIR)/hal/src/hal_atomic.c
INC += \
$(TOP)/hw/bsp/$(BOARD) \
$(TOP)/$(ASF_DIR) \
$(TOP)/$(ASF_DIR)/config \
$(TOP)/$(ASF_DIR)/samg55/include \

30
hw/bsp/samg55xplained/samg55xplained.c
View File

@ -26,6 +26,7 @@
#include "sam.h"
#include "peripheral_clk_config.h"
#include "hal/include/hal_init.h"
#include "hal/include/hpl_usart_sync.h"
#include "hpl/pmc/hpl_pmc.h"
#include "hal/include/hal_gpio.h"
@ -41,6 +42,15 @@
#define BUTTON_STATE_ACTIVE 0
#define UART_TX_PIN GPIO(GPIO_PORTA, 28)
#define UART_RX_PIN GPIO(GPIO_PORTA, 27)
//struct usart_async_descriptor _edbg_com;
//static uint8_t _edbg_com_buf[64];
struct _usart_sync_device _edbg_com;
//------------- IMPLEMENTATION -------------//
void board_init(void)
{
@ -61,6 +71,17 @@ void board_init(void)
gpio_set_pin_pull_mode(BUTTON_PIN, GPIO_PULL_UP);
gpio_set_pin_function(BUTTON_PIN, GPIO_PIN_FUNCTION_OFF);
// Uart via EDBG Com
_pmc_enable_periph_clock(ID_FLEXCOM7);
gpio_set_pin_function(UART_RX_PIN, MUX_PA27B_FLEXCOM7_RXD);
gpio_set_pin_function(UART_TX_PIN, MUX_PA28B_FLEXCOM7_TXD);
// _usart_sync_init(&_edbg_com, FLEXCOM7, _edbg_com_buf, sizeof(_edbg_com_buf), _usart_get_usart_async());
_usart_sync_init(&_edbg_com, FLEXCOM7);
_usart_sync_set_baud_rate(&_edbg_com, CFG_BOARD_UART_BAUDRATE);
_usart_sync_set_mode(&_edbg_com, USART_MODE_ASYNCHRONOUS);
_usart_sync_enable(&_edbg_com);
#if CFG_TUSB_OS == OPT_OS_NONE
// 1ms tick timer (samd SystemCoreClock may not correct)
SysTick_Config(CONF_CPU_FREQUENCY / 1000);
@ -100,8 +121,13 @@ int board_uart_read(uint8_t* buf, int len)
int board_uart_write(void const * buf, int len)
{
(void) buf; (void) len;
return 0;
uint8_t const * buf8 = (uint8_t const *) buf;
for(int i=0; i<len; i++)
{
while ( !_usart_sync_is_ready_to_send(&_edbg_com) ) {}
_usart_sync_write_byte(&_edbg_com, buf8[i]);
}
return len;
}
#if CFG_TUSB_OS == OPT_OS_NONE