Hello,
I have a SPI interface with two slaves. This is my code:
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_DMA_Init();
MX_ADC1_Init();
MX_ADC2_Init();
MX_TIM6_Init();
MX_USART3_UART_Init();
MX_SPI1_Init();
MX_USB_DEVICE_Init();
/* USER CODE BEGIN 2 */
HAL_Delay(100);
/*
//Programm DDS2
DDS_freq_calc(2500, 0, &spi_tx_buf[0]);
HAL_GPIO_WritePin(CS2_GPIO_Port, CS2_Pin, GPIO_PIN_RESET);
HAL_SPI_Transmit(&hspi1,(uint8_t*) &spi_tx_buf[0], 5, 1);
HAL_GPIO_WritePin(CS2_GPIO_Port, CS2_Pin, GPIO_PIN_SET);
HAL_Delay(5);
//Enable comparator
HAL_GPIO_WritePin(CS2_GPIO_Port, CS2_Pin, GPIO_PIN_RESET);
HAL_SPI_Transmit(&hspi1,(uint8_t*) &comparator_en, 1, 1);
HAL_GPIO_WritePin(CS2_GPIO_Port, CS2_Pin, GPIO_PIN_SET);
HAL_Delay(5);
*/
//Program DDS1
DDS_freq_calc(1000, 0, &spi_tx_buf[0]);
HAL_GPIO_WritePin(CS1_GPIO_Port, CS1_Pin, GPIO_PIN_RESET);
HAL_SPI_Transmit(&hspi1,(uint8_t*) &spi_tx_buf[0], 5, 1);
HAL_GPIO_WritePin(CS1_GPIO_Port, CS1_Pin, GPIO_PIN_SET);
HAL_Delay(5);
//Enable comparator
HAL_GPIO_WritePin(CS1_GPIO_Port, CS1_Pin, GPIO_PIN_RESET);
HAL_SPI_Transmit(&hspi1,(uint8_t*) &comparator_en, 1, 1);
HAL_GPIO_WritePin(CS1_GPIO_Port, CS1_Pin, GPIO_PIN_SET);
HAL_Delay(5);
//reset DDS1 & DDS2
HAL_GPIO_WritePin(DDS_reset_GPIO_Port, DDS_reset_Pin, GPIO_PIN_SET);
HAL_Delay(1);
HAL_GPIO_WritePin(DDS_reset_GPIO_Port, DDS_reset_Pin, GPIO_PIN_RESET);
HAL_Delay(5);
I manage to program only the second slave but not the first in this configuration. If I swap the code for slave 1 and slave 2 Then the second gets cpnfigured and the first not . If I coment the coude out for the first to be configured the second wont be configured to. Has somebody encountered a problem like this?
Best regards
