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添加虚拟串口接收缓存的 ENV 配置项，可手动配置接收缓存大小，默认为128字节

This commit is contained in:
Ihavedone 2020-01-17 15:42:56 +08:00
parent caef50f3d1
commit 0fdf20cf58
2 changed files with 7 additions and 0 deletions
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3
components/drivers/Kconfig
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@ -712,6 +712,9 @@ menu "Using USB"
config RT_VCOM_TASK_STK_SIZE
int "virtual com thread stack size"
default 512
config RT_CDC_RX_BUFSIZE
int "virtual com rx buffer size"
default 128
config RT_VCOM_TX_USE_DMA
bool "Enable to use dma for vcom tx"
default n

4
components/drivers/usb/usbdevice/class/cdc_vcom.c
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@ -28,7 +28,11 @@
#define VCOM_TX_TIMEOUT 1000
#endif /*RT_VCOM_TX_TIMEOUT*/
#ifdef RT_CDC_RX_BUFSIZE
#define CDC_RX_BUFSIZE RT_CDC_RX_BUFSIZE
#else
#define CDC_RX_BUFSIZE 128
#endif
#define CDC_MAX_PACKET_SIZE 64
#define VCOM_DEVICE "vcom"