jaseg/olsndot
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

spi-master: functional spi slave on l1 host

Browse source 
Doesn't do much other than reply with an increasing pattern, but at
least the basic wiring is now in place.
This commit is contained in:
Karl Palsson 2018-04-17 22:53:25 +00:00
parent 3ee8c6f8b9
commit 90ce052d82
3 changed files with 29 additions and 29 deletions
Download patch file Download diff file Expand all files Collapse all files

4
tests/spi-master/Makefile.stm32l1-generic → tests/spi-master/Makefile.host-stm32l1-generic
View file

@ -1,5 +1,5 @@
BOARD = stm32l1-generic
PROJECT = spi-master-$(BOARD)
BOARD = host-stm32l1-generic
PROJECT = spi-slave-$(BOARD)
BUILD_DIR = bin-$(BOARD)
SHARED_DIR = ../../shared

7
tests/spi-master/main-dut-stm32l073rz.c
View file

@ -52,7 +52,7 @@ static void test_init(void)
{
/* Setup SPI parameters. */
rcc_periph_clock_enable(hw_details.periph_rcc);
spi_init_master(hw_details.periph, SPI_CR1_BAUDRATE_FPCLK_DIV_64, SPI_CR1_CPOL_CLK_TO_0_WHEN_IDLE,
spi_init_master(hw_details.periph, SPI_CR1_BAUDRATE_FPCLK_DIV_32, SPI_CR1_CPOL_CLK_TO_0_WHEN_IDLE,
SPI_CR1_CPHA_CLK_TRANSITION_1, SPI_CR1_DFF_8BIT, SPI_CR1_MSBFIRST);
/* Ignore the stupid NSS pin. */
spi_enable_software_slave_management(hw_details.periph);
@ -64,12 +64,13 @@ static void test_init(void)
static void test_task(void) {
static int i = 0;
printf("DUT iter %d\n", i++);
gpio_set(hw_details.trigger_port, hw_details.trigger_pin);
printf("Test iteration %d\n", i++);
gpio_clear(LED_DISCO_GREEN_PORT, LED_DISCO_GREEN_PIN);
spi_xfer(hw_details.periph, 0xaa);
spi_xfer(hw_details.periph, 0x42);
spi_xfer(hw_details.periph, 0x69);
gpio_set(LED_DISCO_GREEN_PORT, LED_DISCO_GREEN_PIN);
gpio_clear(hw_details.trigger_port, hw_details.trigger_pin);
}

47
tests/spi-master/main-stm32l1-generic.c → tests/spi-master/main-host-stm32l1-generic.c
View file

@ -14,10 +14,6 @@
#include "hw.h"
#define LED_DISCO_GREEN_PORT GPIOB
#define LED_DISCO_GREEN_PIN GPIO8
struct hw_detail hw_details = {
.periph = SPI2,
.periph_rcc = RCC_SPI2,
@ -53,26 +49,37 @@ static void test_init(void)
{
/* Setup SPI parameters. */
rcc_periph_clock_enable(hw_details.periph_rcc);
spi_init_master(hw_details.periph, SPI_CR1_BAUDRATE_FPCLK_DIV_16, SPI_CR1_CPOL_CLK_TO_0_WHEN_IDLE,
SPI_CR1_CPHA_CLK_TRANSITION_1, SPI_CR1_DFF_8BIT, SPI_CR1_MSBFIRST);
/* Ignore the stupid NSS pin. */
spi_enable_software_slave_management(hw_details.periph);
//spi_enable_ss_output(MRF_SPI);
spi_set_nss_high(hw_details.periph);
/* mostly, this is just "write 0 to cr1" */
spi_set_slave_mode(hw_details.periph);
spi_send_msb_first(hw_details.periph);
spi_set_dff_8bit(hw_details.periph);
spi_set_clock_phase_0(hw_details.periph);
spi_set_clock_polarity_0(hw_details.periph);
spi_set_frf_motorola(hw_details.periph);
/* we're a spi slave, use a CS pin */
spi_disable_software_slave_management(hw_details.periph);
SPI_CR2(hw_details.periph) &= ~SPI_CR2_SSOE;
/* Finally enable the SPI. */
spi_enable(hw_details.periph);
}
static void test_task(void) {
static int i = 0;
printf("Test iteration %d\n", i++);
gpio_set(hw_details.trigger_port, hw_details.trigger_pin);
spi_xfer(hw_details.periph, 0xaa);
spi_xfer(hw_details.periph, 0x42);
spi_xfer(hw_details.periph, 0x69);
gpio_clear(hw_details.trigger_port, hw_details.trigger_pin);
uint32_t spi = hw_details.periph;
if (SPI_SR(spi) & SPI_SR_TXE) {
/* ready to load next data in */
SPI_DR(spi) = i++;
}
if (SPI_SR(spi) & SPI_SR_RXNE) {
uint8_t data = SPI_DR(spi);
trace_send8(2, data);
}
}
static void setup(void)
{
printf("hi guys!\n");
@ -98,18 +105,10 @@ int main(void)
};
int i, j;
rcc_clock_setup_pll(&myclock);
/* green led for ticking */
rcc_periph_clock_enable(RCC_GPIOB);
gpio_mode_setup(LED_DISCO_GREEN_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE,
LED_DISCO_GREEN_PIN);
setup();
while (1) {
test_task();
gpio_toggle(LED_DISCO_GREEN_PORT, LED_DISCO_GREEN_PIN);
for (i = 0; i < 0x800000; i++) { /* Wait a bit. */
__asm__("NOP");
}
}
return 0;
}