libs/rt-thread
libs/rt-thread
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fix spi bug

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This commit is contained in:
bigmagic 2020-02-06 16:03:31 +08:00
parent 4ec07a04e6
commit 3e533e9992
1 changed files with 6 additions and 7 deletions
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13
bsp/raspberry-pi/raspi3-32/driver/drv_spi.c
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@ -18,9 +18,9 @@
void spi_gpio_write(rt_uint8_t pin, rt_uint8_t val) void spi_gpio_write(rt_uint8_t pin, rt_uint8_t val)
{ {
if (val) if (val)
BCM283X_GPIO_GPSET(pin / 32) = 1 << (pin % 32); BCM283X_GPIO_GPSET((pin / 32)) = 1 << (pin % 32);
else else
BCM283X_GPIO_GPCLR(pin / 32) = 0 << (pin % 32); BCM283X_GPIO_GPCLR((pin / 32)) = 1 << (pin % 32);
} }
struct raspi_spi_hw_config struct raspi_spi_hw_config
@ -147,11 +147,10 @@ static rt_uint32_t raspi_spi_xfer(struct rt_spi_device *device, struct rt_spi_me
flag = 0; flag = 0;
else else
flag = 1; flag = 1;
if (message->cs_take);
if (message->cs_take) // (config.mode & RT_SPI_CS_HIGH)?
(config.mode & RT_SPI_CS_HIGH)? // spi_gpio_write(cs_pin, 1):
spi_gpio_write(cs_pin, 1): // spi_gpio_write(cs_pin, 0);
spi_gpio_write(cs_pin, 0);
/* deal data */ /* deal data */
res = spi_transfernb((rt_uint8_t *)message->send_buf, (rt_uint8_t *)message->recv_buf, res = spi_transfernb((rt_uint8_t *)message->send_buf, (rt_uint8_t *)message->recv_buf,