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Code Issues Releases Activity

Aligned fifo buffers to 32-bit for possible speed improvement.

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git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@2173 ebee16cc-31ac-478f-84a7-5cbb03baadba
This commit is contained in:
pip 2010-11-28 11:06:45 +00:00 committed by pip
parent d4c24de556
commit 0cae6df8b0
2 changed files with 4 additions and 4 deletions
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4
flight/PiOS/STM32F10x/pios_usb_hid.c
View File

@ -55,10 +55,10 @@ static uint8_t transfer_possible = 0;
static uint8_t rx_packet_buffer[PIOS_USB_HID_DATA_LENGTH + 2] = { 0 };
static uint8_t tx_packet_buffer[PIOS_USB_HID_DATA_LENGTH + 2] = { 0 };
uint8_t rx_pios_fifo_buf[1024];
uint8_t rx_pios_fifo_buf[1024] __attribute__ ((aligned(4))); // align to 32-bit to try and provide speed improvement
t_fifo_buffer rx_pios_fifo_buffer;
uint8_t tx_pios_fifo_buf[1024];
uint8_t tx_pios_fifo_buf[1024] __attribute__ ((aligned(4))); // align to 32-bit to try and provide speed improvement
t_fifo_buffer tx_pios_fifo_buffer;
/**
* Initialises USB COM layer

4
flight/PiOS/inc/pios_usart_priv.h
View File

@ -50,10 +50,10 @@ struct pios_usart_cfg {
struct pios_usart_dev {
const struct pios_usart_cfg *const cfg;
uint8_t rx_buffer[UART_BUFFER_SIZE];
uint8_t rx_buffer[UART_BUFFER_SIZE] __attribute__ ((aligned(4))); // align to 32-bit to try and provide speed improvement;
t_fifo_buffer rx;
uint8_t tx_buffer[UART_BUFFER_SIZE];
uint8_t tx_buffer[UART_BUFFER_SIZE] __attribute__ ((aligned(4))); // align to 32-bit to try and provide speed improvement;
t_fifo_buffer tx;
};