From e328ebef585cea2351b37117b2d5ac4978ecd3c0 Mon Sep 17 00:00:00 2001
From: WXK <287788329@qq.com>
Date: 星期二, 11 二月 2025 14:57:23 +0800
Subject: [PATCH] 1111111
---
keil/include/drivers/mk_uart.c | 301 ++++++++++++++++++++++++-------------------------
1 files changed, 146 insertions(+), 155 deletions(-)
diff --git a/keil/include/drivers/mk_uart.c b/keil/include/drivers/mk_uart.c
index 5b24f04..bd0a116 100644
--- a/keil/include/drivers/mk_uart.c
+++ b/keil/include/drivers/mk_uart.c
@@ -59,41 +59,8 @@
.dma_tx_ch = DMA_CH7,
},
};
-//脪脝脰虏
-uint32_t SerialKeyPressed(uint8_t *key)//脜脨露脧脢媒戮脻脢脟路帽脢脮碌陆碌脛 MK8000脨脼赂脛
-{
- uint32_t status = uart_handle[1].base->STATUS;
- if (status & UART_STATUS_DR_MSK)
- {
- //Serial0PutString("鲁脡鹿娄陆脫脢脮ing");
- //uart_receive(UART_ID1,test_buf,10,NULL);
- *key = (uint8_t)uart_handle[1].base->RX_DATA;
- //uart_rx_fifo_clear(UART_ID1);
- return 1;
- }
- else
- {
- return 0;
- }
-}
-void SerialPutChar(uint8_t c)
-{
- while (uart_handle[0].base->TX_FL)
- {
- }
- uart_send(UART_ID1, &c, 1, NULL);
-}
-
-void Serial_PutString(uint8_t *s)
-{
- while (*s != '\0')
- {
- SerialPutChar(*s);
- s++;
- }
-}
void Serial0PutChar(uint8_t c)
-{ //脜脨露脧脢媒戮脻禄潞麓忙脟酶脦陋驴脮录麓脡脧脪禄赂枚脳脰陆脷脢媒戮脻脪脩戮颅卤禄脣脥碌陆路垄脣脥录脛麓忙脝梅路垄脣脥鲁枚脠楼脕脣
+{
// wait TX FIFO empty
while (uart_handle[0].base->TX_FL)
{
@@ -139,37 +106,37 @@
// update state
switch (uart_handle[id].state)
{
- case UART_STATE_READY:
- uart_handle[id].state = state;
- break;
- case UART_STATE_BUSY_RX:
- if (state == UART_STATE_BUSY_TX)
- {
- uart_handle[id].state = UART_STATE_BUSY_TX_RX;
- }
- else
- {
+ case UART_STATE_READY:
+ uart_handle[id].state = state;
+ break;
+ case UART_STATE_BUSY_RX:
+ if (state == UART_STATE_BUSY_TX)
+ {
+ uart_handle[id].state = UART_STATE_BUSY_TX_RX;
+ }
+ else
+ {
+ ret = DRV_BUSY;
+ }
+ break;
+ case UART_STATE_BUSY_TX:
+ if (state == UART_STATE_BUSY_RX)
+ {
+ uart_handle[id].state = UART_STATE_BUSY_TX_RX;
+ }
+ else
+ {
+ ret = DRV_BUSY;
+ }
+ break;
+ case UART_STATE_BUSY_TX_RX:
ret = DRV_BUSY;
- }
- break;
- case UART_STATE_BUSY_TX:
- if (state == UART_STATE_BUSY_RX)
- {
- uart_handle[id].state = UART_STATE_BUSY_TX_RX;
- }
- else
- {
- ret = DRV_BUSY;
- }
- break;
- case UART_STATE_BUSY_TX_RX:
- ret = DRV_BUSY;
- break;
- case UART_STATE_RESET:
- case UART_STATE_TIMEOUT:
- case UART_STATE_ERROR:
- ret = DRV_ERROR;
- break;
+ break;
+ case UART_STATE_RESET:
+ case UART_STATE_TIMEOUT:
+ case UART_STATE_ERROR:
+ ret = DRV_ERROR;
+ break;
}
int_unlock(lock);
@@ -432,14 +399,6 @@
while (uart_handle[id].tx_count < uart_handle[id].tx_size)
{
status = uart_handle[id].base->STATUS;
- if (status & (UART_STATUS_OE_MSK | UART_STATUS_PE_MSK | UART_STATUS_FE_MSK | UART_STATUS_BI_MSK | UART_STATUS_RFE_MSK))
- {
- // TODO: user handle the error case
- uart_handle[id].base->INTR_CLR = UART_INTR_CLR_LSR_INT_CLR_MSK;
- status |= UART_ERR_LINE;
- ret = DRV_ERROR;
- break;
- }
if (uart_handle[id].base->STATUS & UART_STATUS_TFNF_MSK)
{
@@ -544,8 +503,6 @@
if (status & (UART_STATUS_OE_MSK | UART_STATUS_PE_MSK | UART_STATUS_FE_MSK | UART_STATUS_BI_MSK | UART_STATUS_RFE_MSK))
{
// TODO: user handle the error case
- // Clear error bits
- uart_handle[id].base->INTR_CLR = UART_INTR_CLR_LSR_INT_CLR_MSK;
status |= UART_ERR_LINE;
ret = DRV_ERROR;
break;
@@ -569,6 +526,33 @@
}
return ret;
+}
+
+void uart_send_over_fifo(enum UART_DEV_T id, uint8_t *tx_buf, uint32_t len)
+{
+ for (uint32_t i = 0; i < len; i++)
+ {
+ uart_handle[id].base->TX_DATA = tx_buf[i];
+ }
+}
+
+uint32_t uart_receive_from_fifo(enum UART_DEV_T id, uint8_t *rx_buf, uint32_t len)
+{
+ for (uint32_t i = 0; i < len; i++)
+ {
+ uint32_t status = uart_handle[id].base->STATUS;
+
+ if (status & UART_STATUS_RFNE_MSK)
+ {
+ rx_buf[i] = (uint8_t)uart_handle[id].base->RX_DATA;
+ }
+ else
+ {
+ return i;
+ }
+ }
+
+ return len;
}
int uart_tx_abort_dma(enum UART_DEV_T id, drv_callback_t abort_tx_callback)
@@ -747,26 +731,22 @@
void uart_irq_handler(enum UART_DEV_T id)
{
drv_callback_t usr_callback = NULL;
- uint32_t err_code = 0;
-
- // read interrupt ID
- uint8_t iid = uart_handle[id].base->INTR_STATUS & 0x0f;
+ uint32_t err_code = uart_handle[id].base->STATUS;
// If DMA is enabled, the uart interrupt handler is only used to handle the error events reported by the receiver
if (uart_handle[id].dma_en)
{
#if UART_DMA_MODE_EN
- err_code = uart_handle[id].base->STATUS;
// iid == 0xC: The precondition that the timeout event will not be triggered is that the length of
// the received data is an integer multiple of the RX FIFO level
- if ((err_code & UART_STATUS_ERROR_MSK) || (iid == 0x0C) || (iid == 0x01))
+ if (err_code & UART_STATUS_ERROR_MSK)
{
// RX err - disable interrupts
uart_handle[id].base->INTR_EN &= ~UART_INTR_EN_ELSI_MSK;
uart_handle[id].base->INTR_CLR = UART_INTR_CLR_LSR_INT_CLR_MSK;
- uart_handle[id].dma_rx_err_state = UART_ERR_LINE | iid;
+ uart_handle[id].dma_rx_err_state = UART_ERR_LINE;
usr_callback = uart_handle[id].rx_callback;
- err_code = UART_ERR_LINE | iid;
+ err_code |= UART_ERR_LINE;
// update state
uart_state_clear(id, UART_STATE_BUSY_RX);
@@ -781,108 +761,119 @@
else
{
#if UART_INT_MODE_EN
+ // read interrupt ID
+ uint8_t iid = uart_handle[id].base->INTR_STATUS & 0x0f;
+
switch (iid)
{
// modem status
- case 0x0:
- // clear int
- uart_handle[id].base->INTR_CLR = UART_INTR_CLR_MSR_INT_CLR_MSK;
- err_code = UART_ERR_MODEM | iid;
- break;
+ case 0x0:
+ // clear int
+ uart_handle[id].base->INTR_CLR = UART_INTR_CLR_MSR_INT_CLR_MSK;
+ err_code |= UART_ERR_MODEM;
+ break;
// no interrupt pending
- case 0x1:
- break;
+ case 0x1:
+ break;
// TX_DATA empty
- case 0x2:
- // clear int
- uart_handle[id].base->INTR_CLR = UART_INTR_CLR_THRE_INT_CLR_MSK;
- if ((uart_handle[id].state == UART_STATE_BUSY_TX) || (uart_handle[id].state == UART_STATE_BUSY_TX_RX))
- {
- if (uart_handle[id].tx_count == uart_handle[id].tx_size)
+ case 0x2:
+ // clear int
+ uart_handle[id].base->INTR_CLR = UART_INTR_CLR_THRE_INT_CLR_MSK;
+ if ((uart_handle[id].state == UART_STATE_BUSY_TX) || (uart_handle[id].state == UART_STATE_BUSY_TX_RX))
{
- // TX done - disable interrupt
- uart_handle[id].base->INTR_EN &= ~UART_INTR_EN_ETBEI_MSK;
- usr_callback = uart_handle[id].tx_callback;
+ if (uart_handle[id].tx_count == uart_handle[id].tx_size)
+ {
+ // TX done - disable interrupt
+ uart_handle[id].base->INTR_EN &= ~UART_INTR_EN_ETBEI_MSK;
+ usr_callback = uart_handle[id].tx_callback;
- // update state
- uart_state_clear(id, UART_STATE_BUSY_TX);
+ // update state
+ uart_state_clear(id, UART_STATE_BUSY_TX);
- uart_handle[id].tx_buff = NULL;
- uart_handle[id].tx_callback = NULL;
- uart_handle[id].tx_count = 0;
- uart_handle[id].tx_size = 0;
+ uart_handle[id].tx_buff = NULL;
+ uart_handle[id].tx_callback = NULL;
+ uart_handle[id].tx_count = 0;
+ uart_handle[id].tx_size = 0;
+ }
+ else
+ {
+ // TX continue - write data to FIFO
+ while ((uart_handle[id].tx_count < uart_handle[id].tx_size) && (uart_handle[id].base->STATUS & UART_STATUS_TFNF_MSK))
+ {
+ uart_handle[id].base->TX_DATA = uart_handle[id].tx_buff[uart_handle[id].tx_count++];
+ }
+ }
}
else
{
- // TX continue - write data to FIFO
- while ((uart_handle[id].tx_count < uart_handle[id].tx_size) && (uart_handle[id].base->STATUS & UART_STATUS_TFNF_MSK))
- {
- uart_handle[id].base->TX_DATA = uart_handle[id].tx_buff[uart_handle[id].tx_count++];
- }
+ // should not get this interrupt in any other state
+ ASSERT(0, "Uart %d state goes wrong %d", id, uart_handle[id].state);
}
- }
- else
- {
- // should not get this interrupt in any other state
- ASSERT(0, "Uart %d state goes wrong %d", id, uart_handle[id].state);
- }
- break;
+ break;
// timeout
- case 0xc:
+ case 0xc:
// No characters in or out of the RCVR FIFO during the last 4 character times and
// there is at least 1 character in it during this time
// received data available
- case 0x4:
- if ((uart_handle[id].state == UART_STATE_BUSY_RX) || (uart_handle[id].state == UART_STATE_BUSY_TX_RX))
- {
- // uint8_t len = uart_handle[id].base->RX_FL;
- while ((uart_handle[id].rx_count < uart_handle[id].rx_size) && (uart_handle[id].base->STATUS & UART_STATUS_RFNE_MSK))
+ case 0x4:
+ if ((uart_handle[id].state == UART_STATE_BUSY_RX) || (uart_handle[id].state == UART_STATE_BUSY_TX_RX))
{
- uint8_t data = (uint8_t)uart_handle[id].base->RX_DATA;
- uart_handle[id].rx_buff[uart_handle[id].rx_count++] = data;
- }
+ // uint8_t len = uart_handle[id].base->RX_FL;
+ while ((uart_handle[id].rx_count < uart_handle[id].rx_size) && (uart_handle[id].base->STATUS & UART_STATUS_RFNE_MSK))
+ {
+ uint8_t data = (uint8_t)uart_handle[id].base->RX_DATA;
+ uart_handle[id].rx_buff[uart_handle[id].rx_count++] = data;
+ }
- if (uart_handle[id].rx_count == uart_handle[id].rx_size)
+ if (uart_handle[id].rx_count == uart_handle[id].rx_size)
+ {
+ // RX done - disable interrupts
+ uart_handle[id].base->INTR_EN &= ~(UART_INTR_EN_ELSI_MSK | UART_INTR_EN_ERBFI_MSK);
+ usr_callback = uart_handle[id].rx_callback;
+
+ // update state
+ uart_state_clear(id, UART_STATE_BUSY_RX);
+
+ uart_handle[id].rx_buff = NULL;
+ uart_handle[id].rx_callback = NULL;
+ uart_handle[id].rx_count = 0;
+ uart_handle[id].rx_size = 0;
+ }
+ }
+ else
{
- // RX done - disable interrupts
- uart_handle[id].base->INTR_EN &= ~(UART_INTR_EN_ELSI_MSK | UART_INTR_EN_ERBFI_MSK);
- usr_callback = uart_handle[id].rx_callback;
-
- // update state
- uart_state_clear(id, UART_STATE_BUSY_RX);
-
- uart_handle[id].rx_buff = NULL;
- uart_handle[id].rx_callback = NULL;
- uart_handle[id].rx_count = 0;
- uart_handle[id].rx_size = 0;
+ // received unexpected data
}
- }
- else
- {
- // received unexpected data
- }
- break;
+ break;
// receiver line status
- case 0x6:
- // clear int
- uart_handle[id].base->INTR_CLR = UART_INTR_CLR_LSR_INT_CLR_MSK;
- err_code = UART_ERR_LINE | iid;
- break;
+ case 0x6:
+ // clear int (Overrun/parity/framing errors, break interrupt, or address received interrupt)
+ // RX err - disable interrupts
+ uart_handle[id].base->INTR_EN &= ~UART_INTR_EN_ELSI_MSK;
+ uart_handle[id].base->INTR_CLR = UART_INTR_CLR_LSR_INT_CLR_MSK;
+ usr_callback = uart_handle[id].rx_callback;
+ err_code |= UART_ERR_LINE;
+
+ uart_handle[id].rx_buff = NULL;
+ uart_handle[id].rx_callback = NULL;
+ uart_handle[id].rx_count = 0;
+ uart_handle[id].rx_size = 0;
+ break;
// busy detect
- case 0x7:
- // clear int
- uart_handle[id].base->INTR_CLR = UART_INTR_CLR_BUSY_INT_CLR_MSK;
- err_code = UART_ERR_BUSY | iid;
- break;
+ case 0x7:
+ // clear int
+ uart_handle[id].base->INTR_CLR = UART_INTR_CLR_BUSY_INT_CLR_MSK;
+ err_code |= UART_ERR_BUSY;
+ break;
- default:
- break;
+ default:
+ break;
}
#endif
}
--
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