From 0336357cf8d72c0c17c6fed3d5233f1e352e32ae Mon Sep 17 00:00:00 2001 From: zhyinch <zhyinch@gmail.com> Date: 星期三, 16 二月 2022 19:57:40 +0800 Subject: [PATCH] 修改485控制BUG --- 源码/核心板/Src/OnChipDevices/Usart.h | 12 ++++++++++-- 1 files changed, 10 insertions(+), 2 deletions(-) diff --git "a/\346\272\220\347\240\201/\346\240\270\345\277\203\346\235\277/Src/OnChipDevices/Usart.h" "b/\346\272\220\347\240\201/\346\240\270\345\277\203\346\235\277/Src/OnChipDevices/Usart.h" index 0cb0059..931f1a8 100644 --- "a/\346\272\220\347\240\201/\346\240\270\345\277\203\346\235\277/Src/OnChipDevices/Usart.h" +++ "b/\346\272\220\347\240\201/\346\240\270\345\277\203\346\235\277/Src/OnChipDevices/Usart.h" @@ -4,7 +4,13 @@ #include "stm32f10x.h" +#define EU_485_PIN GPIO_Pin_7 +#define EU_485_GPIO GPIOB +#define OUT485_ENABLE GPIO_WriteBit(EU_485_GPIO, EU_485_PIN, Bit_SET); +#define OUT485_DISABLE GPIO_WriteBit(EU_485_GPIO, EU_485_PIN, Bit_RESET); + //#define UART_GPIO_REMAP_ENABLE +#define EXUART_USE_TXDMA #ifdef UART_GPIO_REMAP_ENABLE #define UART_GPIO_REMAP GPIO_Remap_USART1 #define EU_RCC_GPIO RCC_APB2Periph_GPIOB @@ -25,8 +31,10 @@ #define EUART_RX_DMA_CH DMA1_Channel5 #define EUART_TX_DMA_CH DMA1_Channel4 -#define EUART_TX_FRM_SIZE 4 //发送队列中的最大帧数 -#define EUART_TX_FRMBUF_SIZE 200 //发送队列每帧缓存大小 +#define EUART_DMA DMA1 +#define EUART_TX_DMA_IT_TC DMA1_IT_TC4 +#define EUART_TX_FRM_SIZE 25 //发送队列中的最大帧数 +#define EUART_TX_FRMBUF_SIZE 100 //发送队列每帧缓存大小 #define EUART_RX_BUF_SIZE 200 //接收缓存大小 #define EXT_UART USART1 -- Gitblit v1.9.3