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AT32F425 UART DMA enable

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pull/13/head
XIVN1987 3 years ago
parent 208aa3d8d6
commit 70d6404d28
5 changed files with 104 additions and 88 deletions
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  1. 32
      AT32F425/DAPLink.uvoptx
  2. 5
      AT32F425/DAPLink.uvprojx
  3. 3
      AT32F425/src/hid_transfer.c
  4. 2
      AT32F425/src/main.c
  5. 148
      AT32F425/src/vcom_serial.c

32
AT32F425/DAPLink.uvoptx
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@ -135,7 +135,7 @@
<SetRegEntry> <SetRegEntry>
<Number>0</Number> <Number>0</Number>
<Key>DLGUARM</Key> <Key>DLGUARM</Key>
<Name></Name> <Name>d</Name>
</SetRegEntry> </SetRegEntry>
<SetRegEntry> <SetRegEntry>
<Number>0</Number> <Number>0</Number>
@ -221,6 +221,16 @@
<pszMrulep></pszMrulep> <pszMrulep></pszMrulep>
<pSingCmdsp></pSingCmdsp> <pSingCmdsp></pSingCmdsp>
<pMultCmdsp></pMultCmdsp> <pMultCmdsp></pMultCmdsp>
<SystemViewers>
<Entry>
<Name>System Viewer\DMA1</Name>
<WinId>35905</WinId>
</Entry>
<Entry>
<Name>System Viewer\USB_OTG1_DEVICE</Name>
<WinId>35904</WinId>
</Entry>
</SystemViewers>
</TargetOption> </TargetOption>
</Target> </Target>
@ -282,7 +292,7 @@
<Group> <Group>
<GroupName>DAP</GroupName> <GroupName>DAP</GroupName>
<tvExp>1</tvExp> <tvExp>0</tvExp>
<tvExpOptDlg>0</tvExpOptDlg> <tvExpOptDlg>0</tvExpOptDlg>
<cbSel>0</cbSel> <cbSel>0</cbSel>
<RteFlg>0</RteFlg> <RteFlg>0</RteFlg>
@ -326,7 +336,7 @@
<Group> <Group>
<GroupName>SWD_host</GroupName> <GroupName>SWD_host</GroupName>
<tvExp>1</tvExp> <tvExp>0</tvExp>
<tvExpOptDlg>0</tvExpOptDlg> <tvExpOptDlg>0</tvExpOptDlg>
<cbSel>0</cbSel> <cbSel>0</cbSel>
<RteFlg>0</RteFlg> <RteFlg>0</RteFlg>
@ -478,6 +488,18 @@
<RteFlg>0</RteFlg> <RteFlg>0</RteFlg>
<bShared>0</bShared> <bShared>0</bShared>
</File> </File>
<File>
<GroupNumber>5</GroupNumber>
<FileNumber>19</FileNumber>
<FileType>1</FileType>
<tvExp>0</tvExp>
<tvExpOptDlg>0</tvExpOptDlg>
<bDave2>0</bDave2>
<PathWithFileName>.\src\CSL\AT32F425_StdPeriph_Driver\at32f425_dma.c</PathWithFileName>
<FilenameWithoutPath>at32f425_dma.c</FilenameWithoutPath>
<RteFlg>0</RteFlg>
<bShared>0</bShared>
</File>
</Group> </Group>
<Group> <Group>
@ -488,7 +510,7 @@
<RteFlg>0</RteFlg> <RteFlg>0</RteFlg>
<File> <File>
<GroupNumber>6</GroupNumber> <GroupNumber>6</GroupNumber>
<FileNumber>19</FileNumber> <FileNumber>20</FileNumber>
<FileType>1</FileType> <FileType>1</FileType>
<tvExp>0</tvExp> <tvExp>0</tvExp>
<tvExpOptDlg>0</tvExpOptDlg> <tvExpOptDlg>0</tvExpOptDlg>
@ -500,7 +522,7 @@
</File> </File>
<File> <File>
<GroupNumber>6</GroupNumber> <GroupNumber>6</GroupNumber>
<FileNumber>20</FileNumber> <FileNumber>21</FileNumber>
<FileType>2</FileType> <FileType>2</FileType>
<tvExp>0</tvExp> <tvExp>0</tvExp>
<tvExpOptDlg>0</tvExpOptDlg> <tvExpOptDlg>0</tvExpOptDlg>

5
AT32F425/DAPLink.uvprojx
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@ -492,6 +492,11 @@
<FileType>1</FileType> <FileType>1</FileType>
<FilePath>.\src\CSL\AT32F425_StdPeriph_Driver\at32f425_usb.c</FilePath> <FilePath>.\src\CSL\AT32F425_StdPeriph_Driver\at32f425_usb.c</FilePath>
</File> </File>
<File>
<FileName>at32f425_dma.c</FileName>
<FileType>1</FileType>
<FilePath>.\src\CSL\AT32F425_StdPeriph_Driver\at32f425_dma.c</FilePath>
</File>
</Files> </Files>
</Group> </Group>
<Group> <Group>

3
AT32F425/src/hid_transfer.c
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@ -20,8 +20,6 @@ static usb_sts_type class_init_handler(void *udev)
{ {
usbd_core_type *usbd = (usbd_core_type *)udev; usbd_core_type *usbd = (usbd_core_type *)udev;
VCOM_Init();
#ifdef DAP_FW_V1 #ifdef DAP_FW_V1
usbd_ept_open(usbd, HID_INT_IN_EP, EPT_INT_TYPE, HID_INT_IN_SZ); usbd_ept_open(usbd, HID_INT_IN_EP, EPT_INT_TYPE, HID_INT_IN_SZ);
usbd_ept_open(usbd, HID_INT_OUT_EP, EPT_INT_TYPE, HID_INT_OUT_SZ); usbd_ept_open(usbd, HID_INT_OUT_EP, EPT_INT_TYPE, HID_INT_OUT_SZ);
@ -242,6 +240,7 @@ static usb_sts_type class_event_handler(void *udev, usbd_event_type event)
switch(event) switch(event)
{ {
case USBD_RESET_EVENT: case USBD_RESET_EVENT:
Vcom.in_ready = 1;
break; break;
case USBD_SUSPEND_EVENT: case USBD_SUSPEND_EVENT:

2
AT32F425/src/main.c
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@ -19,6 +19,8 @@ int main(void)
DAP_Setup(); DAP_Setup();
VCOM_Init();
USB_Config(); USB_Config();
SysTick_Config(SystemCoreClock / 1000); // 1ms interrupt SysTick_Config(SystemCoreClock / 1000); // 1ms interrupt

148
AT32F425/src/vcom_serial.c
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@ -1,3 +1,4 @@
#include <string.h>
#include "at32f425.h" #include "at32f425.h"
#include "usbd_sdr.h" #include "usbd_sdr.h"
#include "usbd_core.h" #include "usbd_core.h"
@ -5,17 +6,25 @@
#include "hid_transfer.h" #include "hid_transfer.h"
volatile VCOM Vcom = {.in_ready = 1}; volatile VCOM Vcom;
VCOM_LINE_CODING LineCfg = {115200, 0, 0, 8}; // Baud rate, stop bits, parity bits, data bits VCOM_LINE_CODING LineCfg = {115200, 0, 0, 8}; // Baud rate, stop bits, parity bits, data bits
#define RXDMA_SZ (CDC_BULK_IN_SZ * 2)
uint8_t RXBuffer[RXDMA_SZ] __attribute__((aligned(4)));
uint8_t TXBuffer[CDC_BULK_OUT_SZ] __attribute__((aligned(4)));
void VCOM_Init(void) void VCOM_Init(void)
{ {
gpio_init_type gpio_init_struct;
dma_init_type dma_init_struct;
crm_periph_clock_enable(CRM_GPIOA_PERIPH_CLOCK, TRUE); crm_periph_clock_enable(CRM_GPIOA_PERIPH_CLOCK, TRUE);
crm_periph_clock_enable(CRM_USART2_PERIPH_CLOCK, TRUE); crm_periph_clock_enable(CRM_USART2_PERIPH_CLOCK, TRUE);
crm_periph_clock_enable(CRM_DMA1_PERIPH_CLOCK, TRUE);
gpio_init_type gpio_init_struct;
gpio_default_para_init(&gpio_init_struct); gpio_default_para_init(&gpio_init_struct);
gpio_init_struct.gpio_mode = GPIO_MODE_MUX; gpio_init_struct.gpio_mode = GPIO_MODE_MUX;
gpio_init_struct.gpio_pins = GPIO_PINS_2 | GPIO_PINS_3; gpio_init_struct.gpio_pins = GPIO_PINS_2 | GPIO_PINS_3;
@ -24,13 +33,42 @@ void VCOM_Init(void)
gpio_pin_mux_config(GPIOA, GPIO_PINS_SOURCE2, GPIO_MUX_1); // PA2 => USART2_TX gpio_pin_mux_config(GPIOA, GPIO_PINS_SOURCE2, GPIO_MUX_1); // PA2 => USART2_TX
gpio_pin_mux_config(GPIOA, GPIO_PINS_SOURCE3, GPIO_MUX_1); // PA3 => USART2_RX gpio_pin_mux_config(GPIOA, GPIO_PINS_SOURCE3, GPIO_MUX_1); // PA3 => USART2_RX
dma_flexible_config(DMA1, FLEX_CHANNEL1, DMA_FLEXIBLE_UART2_TX);
dma_init_struct.direction = DMA_DIR_MEMORY_TO_PERIPHERAL;
dma_init_struct.memory_base_addr = (uint32_t)TXBuffer;
dma_init_struct.memory_data_width = DMA_MEMORY_DATA_WIDTH_BYTE;
dma_init_struct.memory_inc_enable = TRUE;
dma_init_struct.peripheral_base_addr = (uint32_t)&USART2->dt;
dma_init_struct.peripheral_data_width = DMA_PERIPHERAL_DATA_WIDTH_BYTE;
dma_init_struct.peripheral_inc_enable = FALSE;
dma_init_struct.buffer_size = 0;
dma_init_struct.priority = DMA_PRIORITY_HIGH;
dma_init_struct.loop_mode_enable = FALSE;
dma_init(DMA1_CHANNEL1, &dma_init_struct);
dma_channel_enable(DMA1_CHANNEL1, TRUE);
dma_flexible_config(DMA1, FLEX_CHANNEL2, DMA_FLEXIBLE_UART2_RX);
dma_init_struct.direction = DMA_DIR_PERIPHERAL_TO_MEMORY;
dma_init_struct.memory_base_addr = (uint32_t)RXBuffer;
dma_init_struct.memory_data_width = DMA_MEMORY_DATA_WIDTH_BYTE;
dma_init_struct.memory_inc_enable = TRUE;
dma_init_struct.peripheral_base_addr = (uint32_t)&USART2->dt;
dma_init_struct.peripheral_data_width = DMA_PERIPHERAL_DATA_WIDTH_BYTE;
dma_init_struct.peripheral_inc_enable = FALSE;
dma_init_struct.buffer_size = RXDMA_SZ;
dma_init_struct.priority = DMA_PRIORITY_HIGH;
dma_init_struct.loop_mode_enable = TRUE;
dma_init(DMA1_CHANNEL2, &dma_init_struct);
dma_channel_enable(DMA1_CHANNEL2, TRUE);
usart_init(USART2, 115200, USART_DATA_8BITS, USART_STOP_1_BIT); usart_init(USART2, 115200, USART_DATA_8BITS, USART_STOP_1_BIT);
usart_interrupt_enable(USART2, USART_RDBF_INT, TRUE); usart_dma_transmitter_enable(USART2, TRUE);
usart_dma_receiver_enable(USART2, TRUE);
usart_transmitter_enable(USART2, TRUE); usart_transmitter_enable(USART2, TRUE);
usart_receiver_enable(USART2, TRUE); usart_receiver_enable(USART2, TRUE);
usart_enable(USART2, TRUE); usart_enable(USART2, TRUE);
NVIC_EnableIRQ(USART2_IRQn);
} }
@ -65,15 +103,6 @@ void VCOM_LineCoding(VCOM_LINE_CODING * LineCfgx)
__disable_irq(); __disable_irq();
// Reset software FIFO
Vcom.rx_bytes = 0;
Vcom.rx_wrptr = 0;
Vcom.rx_rdptr = 0;
Vcom.tx_bytes = 0;
Vcom.tx_wrptr = 0;
Vcom.tx_rdptr = 0;
usart_init(USART2, LineCfgx->u32DTERate, data_len, stop_len); usart_init(USART2, LineCfgx->u32DTERate, data_len, stop_len);
usart_parity_selection_config(USART2, parity); usart_parity_selection_config(USART2, parity);
@ -81,66 +110,35 @@ void VCOM_LineCoding(VCOM_LINE_CODING * LineCfgx)
} }
void USART2_IRQHandler(void)
{
if(usart_flag_get(USART2, USART_RDBF_FLAG) != RESET)
{
uint16_t chr = usart_data_receive(USART2);
if(Vcom.rx_bytes < RX_BUFF_SIZE)
{
Vcom.rx_buff[Vcom.rx_wrptr++] = chr;
if(Vcom.rx_wrptr == RX_BUFF_SIZE)
Vcom.rx_wrptr = 0;
Vcom.rx_bytes++;
}
}
if(usart_flag_get(USART2, USART_TDBE_FLAG) != RESET)
{
if(Vcom.tx_bytes)
{
usart_data_transmit(USART2, Vcom.tx_buff[Vcom.tx_rdptr++]);
if(Vcom.tx_rdptr == TX_BUFF_SIZE)
Vcom.tx_rdptr = 0;
Vcom.tx_bytes--;
}
else
{
/* No more data, just stop Tx (Stop work) */
usart_interrupt_enable(USART2, USART_TDBE_INT, FALSE);
}
}
}
extern otg_core_type Otg; extern otg_core_type Otg;
extern volatile uint32_t SysTick_ms;
void VCOM_TransferData(void) void VCOM_TransferData(void)
{ {
static uint32_t last_ms = 0;
static uint32_t last_pos = 0;
if(Vcom.in_ready) // ¿ÉÒÔÏòÖ÷»ú·¢ËÍÊý¾Ý if(Vcom.in_ready) // ¿ÉÒÔÏòÖ÷»ú·¢ËÍÊý¾Ý
{ {
if(Vcom.rx_bytes) // 有新的数据可以发送 uint32_t pos = RXDMA_SZ - dma_data_number_get(DMA1_CHANNEL2);
if((pos - last_pos >= CDC_BULK_IN_SZ) || ((pos != last_pos) && (SysTick_ms != last_ms)))
{ {
Vcom.in_bytes = Vcom.rx_bytes; if(pos < last_pos)
if(Vcom.in_bytes > CDC_BULK_IN_SZ) pos = RXDMA_SZ;
Vcom.in_bytes = CDC_BULK_IN_SZ;
for(int i = 0; i < Vcom.in_bytes; i++) if(pos - last_pos > CDC_BULK_IN_SZ)
{ pos = last_pos + CDC_BULK_IN_SZ;
Vcom.in_buff[i] = Vcom.rx_buff[Vcom.rx_rdptr++];
if(Vcom.rx_rdptr >= RX_BUFF_SIZE)
Vcom.rx_rdptr = 0;
}
__disable_irq(); Vcom.in_bytes = pos - last_pos;
Vcom.rx_bytes -= Vcom.in_bytes;
__enable_irq();
Vcom.in_ready = 0; Vcom.in_ready = 0;
memcpy((uint8_t *)Vcom.in_buff, &RXBuffer[last_pos], Vcom.in_bytes);
usbd_ept_send(&Otg.dev, CDC_BULK_IN_EP, (uint8_t *)Vcom.in_buff, Vcom.in_bytes); usbd_ept_send(&Otg.dev, CDC_BULK_IN_EP, (uint8_t *)Vcom.in_buff, Vcom.in_bytes);
last_pos = pos % RXDMA_SZ;
last_ms = SysTick_ms;
} }
else else
{ {
@ -150,33 +148,23 @@ void VCOM_TransferData(void)
{ {
Vcom.in_bytes = 0; Vcom.in_bytes = 0;
usbd_ept_send(&Otg.dev, CDC_BULK_IN_EP, 0, 0); usbd_ept_send(&Otg.dev, CDC_BULK_IN_EP, (uint8_t *)0, 0);
} }
} }
} }
/* 从主机接收到数据，且 tx_buff 能够装下它们 */ /* 从主机接收到数据，且前面的数据 DMA 已发送完 */
if(Vcom.out_ready && (Vcom.out_bytes <= TX_BUFF_SIZE - Vcom.tx_bytes)) if(Vcom.out_ready && (dma_data_number_get(DMA1_CHANNEL1) == 0))
{
for(int i = 0; i < Vcom.out_bytes; i++)
{ {
Vcom.tx_buff[Vcom.tx_wrptr++] = Vcom.out_buff[i]; Vcom.out_ready = 0;
if(Vcom.tx_wrptr >= TX_BUFF_SIZE)
Vcom.tx_wrptr = 0;
}
__disable_irq(); memcpy(TXBuffer, (uint8_t *)Vcom.out_buff, Vcom.out_bytes);
Vcom.tx_bytes += Vcom.out_bytes;
__enable_irq();
Vcom.out_ready = 0; dma_channel_enable(DMA1_CHANNEL1, FALSE);
dma_data_number_set(DMA1_CHANNEL1, Vcom.out_bytes);
dma_channel_enable(DMA1_CHANNEL1, TRUE);
/* Ready for next BULK OUT */ /* Ready for next BULK OUT */
usbd_ept_recv(&Otg.dev, CDC_BULK_OUT_EP, (uint8_t *)Vcom.out_buff, CDC_BULK_OUT_SZ); usbd_ept_recv(&Otg.dev, CDC_BULK_OUT_EP, (uint8_t *)Vcom.out_buff, CDC_BULK_OUT_SZ);
} }
if((Vcom.tx_bytes) && (USART2->ctrl1_bit.tdbeien == 0))
{
usart_interrupt_enable(USART2, USART_TDBE_INT, TRUE);
}
} }

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