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-rw-r--r--stm/usart.c269
1 files changed, 0 insertions, 269 deletions
diff --git a/stm/usart.c b/stm/usart.c
deleted file mode 100644
index 1dfbd433bb..0000000000
--- a/stm/usart.c
+++ /dev/null
@@ -1,269 +0,0 @@
-#include <stdio.h>
-#include <stm32f4xx_rcc.h>
-#include <stm32f4xx_gpio.h>
-#include <stm32f4xx_usart.h>
-
-#include "misc.h"
-#include "mpconfig.h"
-#include "qstr.h"
-#include "obj.h"
-#include "usart.h"
-
-pyb_usart_t pyb_usart_global_debug = PYB_USART_NONE;
-
-static USART_TypeDef *usart_get_base(pyb_usart_t usart_id) {
- USART_TypeDef *USARTx=NULL;
-
- switch (usart_id) {
- case PYB_USART_NONE:
- break;
- case PYB_USART_1:
- USARTx = USART1;
- break;
- case PYB_USART_2:
- USARTx = USART2;
- break;
- case PYB_USART_3:
- USARTx = USART3;
- break;
- case PYB_USART_6:
- USARTx = USART6;
- break;
- }
-
- return USARTx;
-}
-
-void usart_init(pyb_usart_t usart_id, uint32_t baudrate) {
- USART_TypeDef *USARTx=NULL;
-
- uint32_t GPIO_Pin=0;
- uint8_t GPIO_AF_USARTx=0;
- GPIO_TypeDef* GPIO_Port=NULL;
- uint16_t GPIO_PinSource_TX=0;
- uint16_t GPIO_PinSource_RX=0;
-
- uint32_t RCC_APBxPeriph=0;
- void (*RCC_APBxPeriphClockCmd)(uint32_t, FunctionalState)=NULL;
-
- switch (usart_id) {
- case PYB_USART_NONE:
- return;
-
- case PYB_USART_1:
- USARTx = USART1;
-
- GPIO_Port = GPIOA;
- GPIO_AF_USARTx = GPIO_AF_USART1;
- GPIO_Pin = GPIO_Pin_9 | GPIO_Pin_10;
- GPIO_PinSource_TX = GPIO_PinSource9;
- GPIO_PinSource_RX = GPIO_PinSource10;
-
- RCC_APBxPeriph = RCC_APB2Periph_USART1;
- RCC_APBxPeriphClockCmd =RCC_APB2PeriphClockCmd;
- break;
- case PYB_USART_2:
- USARTx = USART2;
-
- GPIO_Port = GPIOD;
- GPIO_AF_USARTx = GPIO_AF_USART2;
- GPIO_Pin = GPIO_Pin_5 | GPIO_Pin_6;
- GPIO_PinSource_TX = GPIO_PinSource5;
- GPIO_PinSource_RX = GPIO_PinSource6;
-
- RCC_APBxPeriph = RCC_APB1Periph_USART2;
- RCC_APBxPeriphClockCmd =RCC_APB1PeriphClockCmd;
- break;
- case PYB_USART_3:
- USARTx = USART3;
-
-#if defined(PYBOARD3) || defined(PYBOARD4)
- GPIO_Port = GPIOB;
- GPIO_AF_USARTx = GPIO_AF_USART3;
- GPIO_Pin = GPIO_Pin_10 | GPIO_Pin_11;
- GPIO_PinSource_TX = GPIO_PinSource10;
- GPIO_PinSource_RX = GPIO_PinSource11;
-#else
- GPIO_Port = GPIOD;
- GPIO_AF_USARTx = GPIO_AF_USART3;
- GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9;
- GPIO_PinSource_TX = GPIO_PinSource8;
- GPIO_PinSource_RX = GPIO_PinSource9;
-#endif
-
- RCC_APBxPeriph = RCC_APB1Periph_USART3;
- RCC_APBxPeriphClockCmd =RCC_APB1PeriphClockCmd;
- break;
- case PYB_USART_6:
- USARTx = USART6;
-
- GPIO_Port = GPIOC;
- GPIO_AF_USARTx = GPIO_AF_USART6;
- GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7;
- GPIO_PinSource_TX = GPIO_PinSource6;
- GPIO_PinSource_RX = GPIO_PinSource7;
-
- RCC_APBxPeriph = RCC_APB2Periph_USART6;
- RCC_APBxPeriphClockCmd =RCC_APB2PeriphClockCmd;
- break;
- }
-
- /* Initialize USARTx */
- RCC_APBxPeriphClockCmd(RCC_APBxPeriph, ENABLE);
-
- GPIO_PinAFConfig(GPIO_Port, GPIO_PinSource_TX, GPIO_AF_USARTx);
- GPIO_PinAFConfig(GPIO_Port, GPIO_PinSource_RX, GPIO_AF_USARTx);
-
- GPIO_InitTypeDef GPIO_InitStructure;
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin;
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_25MHz;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
- GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
- GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
- GPIO_Init(GPIO_Port, &GPIO_InitStructure);
-
- USART_InitTypeDef USART_InitStructure;
- USART_InitStructure.USART_BaudRate = baudrate;
- USART_InitStructure.USART_WordLength = USART_WordLength_8b;
- USART_InitStructure.USART_StopBits = USART_StopBits_1;
- USART_InitStructure.USART_Parity = USART_Parity_No;
- USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
- USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
- USART_Init(USARTx, &USART_InitStructure);
-
- USART_Cmd(USARTx, ENABLE);
-}
-
-bool usart_rx_any(pyb_usart_t usart_id) {
- USART_TypeDef *USARTx = usart_get_base(usart_id);
- return USART_GetFlagStatus(USARTx, USART_FLAG_RXNE) == SET;
-}
-
-int usart_rx_char(pyb_usart_t usart_id) {
- USART_TypeDef *USARTx = usart_get_base(usart_id);
- return USART_ReceiveData(USARTx);
-}
-
-void usart_tx_char(pyb_usart_t usart_id, int c) {
- USART_TypeDef *USARTx = usart_get_base(usart_id);
- // wait until the end of any previous transmission
- uint32_t timeout = 100000;
- while (USART_GetFlagStatus(USARTx, USART_FLAG_TC) == RESET && --timeout > 0) {
- }
- USART_SendData(USARTx, c);
-}
-
-void usart_tx_str(pyb_usart_t usart_id, const char *str) {
- for (; *str; str++) {
- usart_tx_char(usart_id, *str);
- }
-}
-
-void usart_tx_bytes(pyb_usart_t usart_id, const char *data, uint len) {
- for (; len > 0; data++, len--) {
- usart_tx_char(usart_id, *data);
- }
-}
-
-void usart_tx_strn_cooked(pyb_usart_t usart_id, const char *str, int len) {
- for (const char *top = str + len; str < top; str++) {
- if (*str == '\n') {
- usart_tx_char(usart_id, '\r');
- }
- usart_tx_char(usart_id, *str);
- }
-}
-
-
-/******************************************************************************/
-/* Micro Python bindings */
-
-typedef struct _pyb_usart_obj_t {
- mp_obj_base_t base;
- pyb_usart_t usart_id;
- bool is_enabled;
-} pyb_usart_obj_t;
-
-static mp_obj_t usart_obj_status(mp_obj_t self_in) {
- pyb_usart_obj_t *self = self_in;
- if (usart_rx_any(self->usart_id)) {
- return mp_const_true;
- } else {
- return mp_const_false;
- }
-}
-
-static mp_obj_t usart_obj_rx_char(mp_obj_t self_in) {
- mp_obj_t ret = mp_const_none;
- pyb_usart_obj_t *self = self_in;
-
- if (self->is_enabled) {
- ret = mp_obj_new_int(usart_rx_char(self->usart_id));
- }
- return ret;
-}
-
-static mp_obj_t usart_obj_tx_char(mp_obj_t self_in, mp_obj_t c) {
- pyb_usart_obj_t *self = self_in;
- uint len;
- const char *str = mp_obj_str_get_data(c, &len);
- if (len == 1 && self->is_enabled) {
- usart_tx_char(self->usart_id, str[0]);
- }
- return mp_const_none;
-}
-
-static mp_obj_t usart_obj_tx_str(mp_obj_t self_in, mp_obj_t s) {
- pyb_usart_obj_t *self = self_in;
- if (self->is_enabled) {
- if (MP_OBJ_IS_STR(s)) {
- uint len;
- const char *data = mp_obj_str_get_data(s, &len);
- usart_tx_bytes(self->usart_id, data, len);
- }
- }
- return mp_const_none;
-}
-
-static void usart_obj_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t self_in, mp_print_kind_t kind) {
- pyb_usart_obj_t *self = self_in;
- print(env, "<Usart %lu>", self->usart_id);
-}
-
-static MP_DEFINE_CONST_FUN_OBJ_1(usart_obj_status_obj, usart_obj_status);
-static MP_DEFINE_CONST_FUN_OBJ_1(usart_obj_rx_char_obj, usart_obj_rx_char);
-static MP_DEFINE_CONST_FUN_OBJ_2(usart_obj_tx_char_obj, usart_obj_tx_char);
-static MP_DEFINE_CONST_FUN_OBJ_2(usart_obj_tx_str_obj, usart_obj_tx_str);
-
-STATIC const mp_map_elem_t usart_locals_dict_table[] = {
- { MP_OBJ_NEW_QSTR(MP_QSTR_status), (mp_obj_t)&usart_obj_status_obj },
- { MP_OBJ_NEW_QSTR(MP_QSTR_recv_chr), (mp_obj_t)&usart_obj_rx_char_obj },
- { MP_OBJ_NEW_QSTR(MP_QSTR_send_chr), (mp_obj_t)&usart_obj_tx_char_obj },
- { MP_OBJ_NEW_QSTR(MP_QSTR_send), (mp_obj_t)&usart_obj_tx_str_obj },
-};
-
-STATIC MP_DEFINE_CONST_DICT(usart_locals_dict, usart_locals_dict_table);
-
-STATIC const mp_obj_type_t usart_obj_type = {
- { &mp_type_type },
- .name = MP_QSTR_Usart,
- .print = usart_obj_print,
- .locals_dict = (mp_obj_t)&usart_locals_dict,
-};
-
-STATIC mp_obj_t pyb_Usart(mp_obj_t usart_id, mp_obj_t baudrate) {
- if (mp_obj_get_int(usart_id)>PYB_USART_MAX) {
- return mp_const_none;
- }
-
- /* init USART */
- usart_init(mp_obj_get_int(usart_id), mp_obj_get_int(baudrate));
-
- pyb_usart_obj_t *o = m_new_obj(pyb_usart_obj_t);
- o->base.type = &usart_obj_type;
- o->usart_id = mp_obj_get_int(usart_id);
- o->is_enabled = true;
- return o;
-}
-
-MP_DEFINE_CONST_FUN_OBJ_2(pyb_Usart_obj, pyb_Usart);
generated by cgit v1.2.3 (git 2.39.1) at 2025-06-02 12:40:20 +0000