Estoy tratando de usar el generador interno de pitidos de CS43L22 en mi STM32F4 Discovery. Estoy usando la biblioteca HAL y puedo acceder al Chip a través de I2C, pero solo para 4 bytes (lectura o escritura), la función HAL_I2C_Master_Transmit() se atasca.
Reduje el atascado a I2C_WaitOnMasterAddressFlagUntilTimeout() Líneas (5084 a 5122) en stm32f4xx_hal_i2c.c. Cuando se utiliza una depuración paso a paso, el código completo funciona bien, al ejecutarse desde Breaktpoint hasta Breakpoint, falla.
Estoy usando Keil µVision 5.15 y me gustaría usar los controladores HAL ya que el proyecto se transferirá a una aplicación RTOS. Si necesita cualquier otra información, estaré encantado de proporcionarla.
¿Qué podría hacer que el código se atasque? ¿Y qué hacer para evitarlo?
mi main.c:
// main.c
#include "stm32f4xx.h"
#include "my_header.h"
int main(void){
I2C_HandleTypeDef I2C_Params; // declare Parameter Handle
I2S_HandleTypeDef I2S_Params; // declare Parameter Handle
HAL_StatusTypeDef I2C_State; // declare State handle
GPIO_InitTypeDef GPIOD_Params; // Declares the structure handle for the parameters of the reset pin on GPIOE
GPIO_InitTypeDef GPIOB_Params; // Declares the structure handle for the parameters of I2C on GPIOB
GPIO_InitTypeDef GPIOC_Params; // Declares the structure handle for the parameters of I2S on GPIOC
uint8_t send_data; // declare send data variable
uint8_t send_data_array[2]; // declare send data variable
uint8_t received_data; // declare received data variable
HAL_Init(); // Initialise Hal driver
// configure System Clock
RCC_ClkInitTypeDef RCC_ClkInitStruct;
RCC_OscInitTypeDef RCC_OscInitStruct;
/* Enable Power Control clock */
__PWR_CLK_ENABLE();
/* The voltage scaling allows optimizing the power consumption when the device is
clocked below the maximum system frequency, to update the voltage scaling value
regarding system frequency refer to product datasheet. */
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
/* Enable HSE Oscillator and activate PLL with HSE as source */
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 336;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 7;
HAL_RCC_OscConfig(&RCC_OscInitStruct);
/* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2
clocks dividers */
RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5);
LED_Init(); // initialise LEDs
Set_State_Rd_LED(1); // turn on red LED
// Configure GPIOD for reset pin on CS43L22
RCC->AHB1ENR |= RCC_AHB1ENR_GPIODEN; //Enable the clock for GPIOD
GPIOD_Params.Pin = GPIO_PIN_4; // Select pin 4
GPIOD_Params.Mode = GPIO_MODE_OUTPUT_PP; //Selects normal output push-pull mode
GPIOD_Params.Speed = GPIO_SPEED_FAST; //Selects fast speed
GPIOD_Params.Pull = GPIO_PULLDOWN; //Selects pull-down activation
HAL_GPIO_Init(GPIOD, &GPIOD_Params); // Sets GPIOD into the modes specified in GPIOE_Params
// Configure GPIOB for SCL (PB6) and SDA (PB9) on I2C1
RCC->AHB1ENR |= RCC_AHB1ENR_GPIOBEN; //Enable the clock for GPIOA
GPIOB_Params.Pin = GPIO_PIN_6 | GPIO_PIN_9; // Selects pins 6 and 9
GPIOB_Params.Alternate = GPIO_AF4_I2C1; //Selects alternate function (I2C1)
GPIOB_Params.Mode = GPIO_MODE_AF_OD; //Selects alternate function open drain mode
GPIOB_Params.Speed = GPIO_SPEED_FAST; //Selects fast speed
//GPIOB_Params.Speed = GPIO_SPEED_FREQ_VERY_HIGH; //Selects fast speed
GPIOB_Params.Pull = GPIO_NOPULL; //Selects no pull-up or pull-down activation
//GPIOB_Params.Pull = GPIO_PULLUP; //Selects no pull-up activation
HAL_GPIO_Init(GPIOB, &GPIOB_Params); // Sets GPIOB into the modes specified in GPIOA_Params
RCC->APB1ENR |= RCC_APB1ENR_I2C1EN ; // Enables the clock for I2C1
RCC->APB1ENR |= RCC_APB1ENR_SPI3EN ; // Enables the clock for SPI3 (I2S)
// Configure GPIOC for 7(MCLK), 10(SCLK) and 12(SDIN) on I2S
RCC->AHB1ENR |= RCC_AHB1ENR_GPIOBEN; //Enable the clock for GPIOA
GPIOC_Params.Pin = GPIO_PIN_7 | GPIO_PIN_10 | GPIO_PIN_12; // Selects pins 7(MCLK), 10(SCLK) and 12(SDIN)
GPIOC_Params.Alternate = GPIO_AF6_SPI3; //Selects alternate function (I2C1)
GPIOC_Params.Mode = GPIO_MODE_AF_PP; //Selects alternate function open drain mode
GPIOC_Params.Speed = GPIO_SPEED_FAST; //Selects fast speed
GPIOC_Params.Pull = GPIO_NOPULL; //Selects no pull-up or pull-down activation
HAL_GPIO_Init(GPIOC, &GPIOC_Params); // Sets GPIOB into the modes specified in GPIOA_Params
I2S_Params.Instance = SPI3;
I2S_Params.Init.Mode = I2S_MODE_MASTER_TX;
I2S_Params.Init.Standard = I2S_STANDARD_PHILIPS;
I2S_Params.Init.DataFormat = I2S_DATAFORMAT_16B;
I2S_Params.Init.MCLKOutput = I2S_MCLKOUTPUT_ENABLE;
I2S_Params.Init.AudioFreq = I2S_AUDIOFREQ_48K;
I2S_Params.Init.CPOL = I2S_CPOL_LOW;
//I2S_Params.Init.ClockSource = I2S_CLOCK_PLL;
//I2S_Params.Init.FullDuplexMode = I2S_FULLDUPLEXMODE_DISABLE;
HAL_I2S_Init(&I2S_Params);
// Configure I2C
I2C_Params.Instance = I2C1;
I2C_Params.Init.ClockSpeed = 100000; // Set clock speed to 50 kHz
I2C_Params.Init.DutyCycle = I2C_DUTYCYCLE_2; // Set duty cycle
I2C_Params.Init.OwnAddress1 = 0x33; // set own adress 1
// I2C_Params.Init.OwnAddress1 = 0x00; // set own adress 1
I2C_Params.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; // set to 7-Bit adresses
I2C_Params.Init.DualAddressMode = I2C_DUALADDRESS_DISABLED; // Disabel dual address mode
I2C_Params.Init.OwnAddress2 = 0; // set own adress 2
I2C_Params.Init.GeneralCallMode = I2C_GENERALCALL_DISABLED; // General call disabled
I2C_Params.Init.NoStretchMode = I2C_NOSTRETCH_DISABLED; // No Stretch disabled
// I2C_Params.Init.NoStretchMode = I2C_NOSTRETCH_ENABLE; // No Stretch enabled
// I2C_Params.Mode = HAL_I2C_MODE_MASTER; // set I2C to master
// HAL_I2C_MspInit(&I2C_Params); // configure I2C
__HAL_I2C_ENABLE(&I2C_Params); // Enable the I2C1
I2C_State = HAL_I2C_Init(&I2C_Params); // configure I2C
__HAL_I2S_ENABLE(&I2S_Params);
GPIOD->BSRR |= GPIO_PIN_4; //Sets the reset pin of CS43L22 high
// ceck value
send_data = 0x01; // address of chip ID
HAL_I2C_Master_Transmit(&I2C_Params, 0x94, &send_data, 1, 1000); // Write Address to read
HAL_I2C_Master_Receive(&I2C_Params, 0x94, &received_data, 1, 1000); // read Chip ID register
// ceck value
send_data = 0x01; // address of chip ID
HAL_I2C_Master_Transmit(&I2C_Params, 0x94, &send_data, 1, 1000); // Write Address to read
HAL_I2C_Master_Receive(&I2C_Params, 0x94, &received_data, 1, 1000); // read Chip ID register
I2C_State = HAL_I2C_IsDeviceReady(&I2C_Params, 0x0094, 10, 1000);
// ceck value
send_data = 0x01; // address of chip ID
HAL_I2C_Master_Transmit(&I2C_Params, 0x94, &send_data, 1, 1000); // Write Address to read
HAL_I2C_Master_Receive(&I2C_Params, 0x94, &received_data, 1, 1000); // read Chip ID register
Set_State_Or_LED(1); // turn on orange LED
};