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usbuart: Further refined the buffer sizing definition process

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dragonmux 2022-08-19 10:52:51 +01:00 committed by Piotr Esden-Tempski
parent 39df8fa6a6
commit 52e9065426
1 changed files with 4 additions and 2 deletions
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6
src/platforms/common/usbuart.h
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@ -28,14 +28,16 @@ void debug_uart_run(void);
#define TX_LED_ACT (1 << 0)
#define RX_LED_ACT (1 << 1)
#if defined(STM32F0) || defined(STM32F1) || defined(STM32F3) || defined(STM32F4)
/* XXX: Does the st_usbfs_v2_usb_driver work on F3 with 128 byte buffers? */
#if defined(STM32F1) || defined(STM32F3) || defined(STM32F4)
#define USART_DMA_BUF_SIZE 128
#define USART_DMA_BUF_SHIFT 7U
#elif defined(STM32F0)
/* The st_usbfs_v2_usb_driver only works with up to 64-byte buffers on the F0 parts */
#define USART_DMA_BUF_SIZE 64
#define USART_DMA_BUF_SHIFT 6U
#endif
#define USART_DMA_BUF_SIZE (1U << USART_DMA_BUF_SHIFT)
#define RX_FIFO_SIZE (USART_DMA_BUF_SIZE)
#define TX_BUF_SIZE (USART_DMA_BUF_SIZE)