perf(ds18b20-ds2480): передавай байты в Data Mode

c/ds18b20-ds2480/ports/stm32f4/tests/stm32f4xx_hal.h

@@ -0,0 +1,39 @@
+/* Host-only HAL model, never add this directory to a firmware include path. */
+#ifndef TEST_STM32F4_HAL_H
+#define TEST_STM32F4_HAL_H
+#include <stdint.h>
+typedef struct { uint32_t SR, DR, CR1; } USART_TypeDef;
+typedef struct { uint32_t pin, level, mode; } GPIO_TypeDef;
+typedef struct { uint32_t BaudRate,WordLength,StopBits,Parity,Mode,HwFlowCtl,OverSampling; } UART_InitTypeDef;
+typedef struct { USART_TypeDef *Instance; UART_InitTypeDef Init; } UART_HandleTypeDef;
+typedef struct { uint32_t Pin, Mode, Pull, Speed, Alternate; } GPIO_InitTypeDef;
+typedef enum { HAL_OK, HAL_ERROR } HAL_StatusTypeDef;
+#define USART_SR_ORE 8U
+#define USART_SR_NE 4U
+#define USART_SR_FE 2U
+#define USART_SR_PE 1U
+#define USART_SR_RXNE 32U
+#define GPIO_PIN_RESET 0U
+#define GPIO_PIN_SET 1U
+#define GPIO_MODE_OUTPUT_PP 1U
+#define GPIO_MODE_AF_PP 2U
+#define GPIO_NOPULL 0U
+#define GPIO_SPEED_FREQ_HIGH 3U
+#define UART_WORDLENGTH_8B 0U
+#define UART_STOPBITS_1 0U
+#define UART_PARITY_NONE 0U
+#define UART_MODE_TX_RX 12U
+#define UART_HWCONTROL_NONE 0U
+#define UART_OVERSAMPLING_16 0U
+#define HAL_MAX_DELAY UINT32_MAX
+#define __HAL_UART_DISABLE(u) ((u)->Instance->CR1=0)
+void test_clear(UART_HandleTypeDef *u);
+#define __HAL_UART_CLEAR_OREFLAG(u) test_clear(u)
+HAL_StatusTypeDef HAL_UART_Abort(UART_HandleTypeDef *u);
+HAL_StatusTypeDef HAL_UART_Init(UART_HandleTypeDef *u);
+HAL_StatusTypeDef HAL_UART_Transmit(UART_HandleTypeDef *u,const uint8_t *p,uint16_t n,uint32_t timeout);
+void HAL_GPIO_WritePin(GPIO_TypeDef *g,uint16_t pin,uint32_t level);
+void HAL_GPIO_Init(GPIO_TypeDef *g,const GPIO_InitTypeDef *i);
+void HAL_Delay(uint32_t ms);
+uint32_t HAL_GetTick(void);
+#endif

c/ds18b20-ds2480/ports/stm32f4/tests/test_port.c

@@ -0,0 +1,41 @@
+#include "ds2480_stm32f4_hal.h"
+#include <assert.h>
+#include <stdio.h>
+
+static uint32_t now, low_ms, high_ms, clears;
+static GPIO_TypeDef gpio;
+static unsigned fail_init, fail_tx;
+void test_clear(UART_HandleTypeDef *u){u->Instance->SR=0;++clears;}
+HAL_StatusTypeDef HAL_UART_Abort(UART_HandleTypeDef *u){(void)u;return HAL_OK;}
+HAL_StatusTypeDef HAL_UART_Init(UART_HandleTypeDef *u)
+{assert(gpio.mode==GPIO_MODE_AF_PP && gpio.level==1);assert(u->Init.BaudRate==9600);return fail_init?HAL_ERROR:HAL_OK;}
+HAL_StatusTypeDef HAL_UART_Transmit(UART_HandleTypeDef *u,const uint8_t *p,uint16_t n,uint32_t timeout)
+{assert(n==1 && timeout==20);u->Instance->DR=*p;u->Instance->SR=USART_SR_RXNE;return fail_tx?HAL_ERROR:HAL_OK;}
+void HAL_GPIO_WritePin(GPIO_TypeDef *g,uint16_t pin,uint32_t level){g->pin=pin;g->level=level;}
+void HAL_GPIO_Init(GPIO_TypeDef *g,const GPIO_InitTypeDef *i){assert(i->Pin==64);g->mode=i->Mode;}
+void HAL_Delay(uint32_t ms){now+=ms;if(gpio.level)high_ms+=ms;else low_ms+=ms;}
+uint32_t HAL_GetTick(void){return now++;}
+
+int main(void)
+{
+    USART_TypeDef regs={0};UART_HandleTypeDef uart={0};
+    ds2480_stm32f4_hal ctx={&uart,&gpio,64,8};ds2480_port port;
+    uint8_t byte=0xCD,rx=0;
+    uart.Instance=&regs;
+    assert(ds2480_stm32f4_hal_bind(&ctx,&port)==DS2480_OK);
+    assert(port.prepare(port.user)==0 && low_ms>=2 && high_ms>=2 && clears==1);
+    assert(port.write(port.user,&byte,1,20)==0);
+    assert(regs.SR & USART_SR_RXNE); /* Early reply must survive TX completion. */
+    assert(port.read(port.user,&rx,1,20)==0 && rx==byte && clears==1);
+    regs.SR=USART_SR_RXNE|USART_SR_FE;rx=0xA5;
+    assert(port.read(port.user,&rx,1,20)!=0 && rx==0xA5 && clears==2);
+    regs.SR=USART_SR_ORE;assert(port.write(port.user,&byte,1,20)!=0);
+    regs.SR=0;now=UINT32_MAX-5;
+    assert(port.read(port.user,&rx,1,20)!=0); /* Wrap-safe bounded timeout. */
+    assert(port.write(port.user,&byte,2,20)!=0);
+    assert(port.read(port.user,&rx,1,HAL_MAX_DELAY)!=0);
+    fail_tx=1;assert(port.write(port.user,&byte,1,20)!=0);
+    fail_init=1;assert(port.prepare(port.user)!=0 && gpio.level==1);
+    ctx.tx_pin=3;assert(ds2480_stm32f4_hal_bind(&ctx,&port)==DS2480_ARGUMENT);
+    puts("STM32F4 UART port: OK");return 0;
+}