54 lines
1.8 KiB
C
54 lines
1.8 KiB
C
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#include <api-hal-console.h>
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#include <stdbool.h>
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#include <stm32wbxx_ll_gpio.h>
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#include <stm32wbxx_ll_usart.h>
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volatile bool api_hal_console_alive = false;
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void api_hal_console_init() {
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LL_GPIO_InitTypeDef GPIO_InitStruct = {0};
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GPIO_InitStruct.Pin = LL_GPIO_PIN_6|LL_GPIO_PIN_7;
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GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
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GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_LOW;
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GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
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GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
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GPIO_InitStruct.Alternate = LL_GPIO_AF_7;
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LL_GPIO_Init(GPIOB, &GPIO_InitStruct);
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LL_USART_InitTypeDef USART_InitStruct = {0};
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USART_InitStruct.PrescalerValue = LL_USART_PRESCALER_DIV1;
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USART_InitStruct.BaudRate = 230400;
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USART_InitStruct.DataWidth = LL_USART_DATAWIDTH_8B;
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USART_InitStruct.StopBits = LL_USART_STOPBITS_1;
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USART_InitStruct.Parity = LL_USART_PARITY_NONE;
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USART_InitStruct.TransferDirection = LL_USART_DIRECTION_TX;
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USART_InitStruct.HardwareFlowControl = LL_USART_HWCONTROL_NONE;
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USART_InitStruct.OverSampling = LL_USART_OVERSAMPLING_16;
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LL_USART_Init(USART1, &USART_InitStruct);
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LL_USART_SetTXFIFOThreshold(USART1, LL_USART_FIFOTHRESHOLD_1_2);
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LL_USART_EnableFIFO(USART1);
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LL_USART_ConfigAsyncMode(USART1);
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LL_USART_Enable(USART1);
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while(!LL_USART_IsActiveFlag_TEACK(USART1)) ;
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api_hal_console_alive = true;
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}
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void api_hal_console_tx(const uint8_t* buffer, size_t buffer_size) {
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if (!api_hal_console_alive)
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return;
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while(buffer_size > 0) {
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while (!LL_USART_IsActiveFlag_TXE(USART1));
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LL_USART_TransmitData8(USART1, *buffer);
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buffer++;
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buffer_size--;
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}
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/* Wait for TC flag to be raised for last char */
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while (!LL_USART_IsActiveFlag_TC(USART1));
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}
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