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boards/b-l072z-lrwan1: configure and use DMA

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This commit is contained in:
Vincent Dupont 2018-05-23 19:09:03 +02:00
parent 962d81b652
commit 08a85fbfdd
3 changed files with 47 additions and 2 deletions
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2
boards/b-l072z-lrwan1/Makefile.dep
View File

@ -1,3 +1,5 @@
FEATURES_REQUIRED += periph_dma
ifneq (,$(filter netdev_default,$(USEMODULE)))
USEMODULE += sx1276
endif

1
boards/b-l072z-lrwan1/Makefile.features
View File

@ -1,4 +1,5 @@
# Put defined MCU peripherals here (in alphabetical order)
FEATURES_PROVIDED += periph_dma
FEATURES_PROVIDED += periph_i2c
FEATURES_PROVIDED += periph_rtc
FEATURES_PROVIDED += periph_spi

46
boards/b-l072z-lrwan1/include/periph_conf.h
View File

@ -49,6 +49,28 @@ extern "C" {
#define CLOCK_APB1 (CLOCK_CORECLOCK / 1)
/** @} */
/**
* @name DMA streams configuration
* @{
*/
#ifdef MODULE_PERIPH_DMA
static const dma_conf_t dma_config[] = {
{ .stream = 1 }, /* channel 2 */
{ .stream = 2 }, /* channel 3 */
{ .stream = 3 }, /* channel 4 */
{ .stream = 4 }, /* channel 5 */
{ .stream = 5 }, /* channel 6 */
};
#define DMA_SHARED_ISR_0 isr_dma1_channel2_3
#define DMA_SHARED_ISR_0_STREAMS { 0, 1 } /* Indexes 0 and 1 of dma_config share the same isr */
#define DMA_SHARED_ISR_1 isr_dma1_channel4_5_6_7
#define DMA_SHARED_ISR_1_STREAMS { 2, 3, 4 } /* Indexes 2, 3 and 4 of dma_config share the same isr */
#define DMA_NUMOF (sizeof(dma_config) / sizeof(dma_config[0]))
#endif
/** @} */
/**
* @name Timer configuration
* @{
@ -84,6 +106,10 @@ static const uart_conf_t uart_config[] = {
.irqn = USART2_IRQn,
.type = STM32_USART,
.clk_src = 0, /* Use APB clock */
#ifdef MODULE_PERIPH_DMA
.dma = 2,
.dma_chan = 4,
#endif
},
{
.dev = USART1,
@ -96,6 +122,10 @@ static const uart_conf_t uart_config[] = {
.irqn = USART1_IRQn,
.type = STM32_USART,
.clk_src = 0, /* Use APB clock */
#ifdef MODULE_PERIPH_DMA
.dma = 0,
.dma_chan = 3,
#endif
},
};
@ -138,7 +168,13 @@ static const spi_conf_t spi_config[] = {
.cs_pin = GPIO_UNDEF,
.af = GPIO_AF0,
.rccmask = RCC_APB1ENR_SPI2EN,
.apbbus = APB1
.apbbus = APB1,
#ifdef MODULE_PERIPH_DMA
.tx_dma = 3,
.tx_dma_chan = 2,
.rx_dma = 2,
.rx_dma_chan = 2,
#endif
},
{
.dev = SPI1, /* connected to SX1276 */
@ -148,7 +184,13 @@ static const spi_conf_t spi_config[] = {
.cs_pin = GPIO_UNDEF,
.af = GPIO_AF0,
.rccmask = RCC_APB2ENR_SPI1EN,
.apbbus = APB2
.apbbus = APB2,
#ifdef MODULE_PERIPH_DMA
.tx_dma = 1,
.tx_dma_chan = 1,
.rx_dma = 0,
.rx_dma_chan = 1,
#endif
},
};