From 6df66b77ba5b27bce5630694742f2dac57b8d3eb Mon Sep 17 00:00:00 2001
From: jaseg <git@jaseg.net>
Date: Tue, 17 Jul 2018 15:43:26 +0200
Subject: Isolate usb-serial-rs485 tree

---
 tests/uart-basic/main-stm32f3-disco.c | 136 ----------------------------------
 1 file changed, 136 deletions(-)
 delete mode 100644 tests/uart-basic/main-stm32f3-disco.c

(limited to 'tests/uart-basic/main-stm32f3-disco.c')

diff --git a/tests/uart-basic/main-stm32f3-disco.c b/tests/uart-basic/main-stm32f3-disco.c
deleted file mode 100644
index 94c6937..0000000
--- a/tests/uart-basic/main-stm32f3-disco.c
+++ /dev/null
@@ -1,136 +0,0 @@
-/*
- * Oct 2017 Karl Palsson <karlp@tweak.net.au>
- */
-
-#include <errno.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <libopencm3/cm3/nvic.h>
-#include <libopencm3/stm32/flash.h>
-#include <libopencm3/stm32/gpio.h>
-#include <libopencm3/stm32/rcc.h>
-#include <libopencm3/stm32/usart.h>
-
-#include "uart-basic.h"
-
-/* f3 pll setup, based on l1/f4*/
-
-typedef struct {
-	uint8_t pll_mul;
-	uint8_t pll_div;
-	uint8_t pll_source;
-	uint32_t flash_config;
-	uint8_t hpre;
-	uint8_t ppre1;
-	uint8_t ppre2;
-	uint32_t apb1_frequency;
-	uint32_t apb2_frequency;
-	uint32_t ahb_frequency;
-} rcc_clock_scale_t;
-
-static void rcc_clock_setup_pll_f3_special(const rcc_clock_scale_t *clock)
-{
-	/* Turn on the appropriate source for the PLL */
-	// TODO, some f3's have extra bits here
-	enum rcc_osc my_osc;
-	if (clock->pll_source == RCC_CFGR_PLLSRC_HSE_PREDIV) {
-		my_osc = RCC_HSE;
-	} else {
-		my_osc = RCC_HSI;
-	}
-	rcc_osc_on(my_osc);
-	while (!rcc_is_osc_ready(my_osc));
-
-	/* Configure flash settings. */
-	flash_set_ws(clock->flash_config);
-
-	/*
-	 * Set prescalers for AHB, ADC, ABP1, ABP2.
-	 * Do this before touching the PLL (TODO: why?).
-	 */
-	rcc_set_hpre(clock->hpre);
-	rcc_set_ppre1(clock->ppre1);
-	rcc_set_ppre2(clock->ppre2);
-
-	rcc_osc_off(RCC_PLL);
-	while (rcc_is_osc_ready(RCC_PLL));
-	rcc_set_pll_source(clock->pll_source);
-	rcc_set_pll_multiplier(clock->pll_mul);
-	// TODO - iff pll_div != 0, then maybe we're on a target that 
-	// has the dividers?
-
-	/* Enable PLL oscillator and wait for it to stabilize. */
-	rcc_osc_on(RCC_PLL);
-	while (!rcc_is_osc_ready(RCC_PLL));
-
-	/* Select PLL as SYSCLK source. */
-	rcc_set_sysclk_source(RCC_CFGR_SW_PLL);
-	rcc_wait_for_sysclk_status(RCC_PLL);
-
-	/* Set the peripheral clock frequencies used. */
-	rcc_ahb_frequency = clock->ahb_frequency;
-	rcc_apb1_frequency = clock->apb1_frequency;
-	rcc_apb2_frequency = clock->apb2_frequency;
-}
-
-static void setup_clocks(void)
-{
-	rcc_clock_scale_t clock_full_hse8mhz ={
-		.pll_mul = RCC_CFGR_PLLMUL_PLL_IN_CLK_X9,
-		.pll_source = RCC_CFGR_PLLSRC_HSE_PREDIV,
-		.hpre = RCC_CFGR_HPRE_DIV_NONE,
-		.ppre1 = RCC_CFGR_PPRE1_DIV_2,
-		.ppre2 = RCC_CFGR_PPRE2_DIV_NONE,
-		.flash_config = FLASH_ACR_PRFTBE | FLASH_ACR_LATENCY_2WS,
-		.apb1_frequency = 36000000,
-		.apb2_frequency = 72000000,
-		.ahb_frequency = 72000000,
-	};
-
-	rcc_clock_setup_pll_f3_special(&clock_full_hse8mhz);
-}
-
-void usart2_exti26_isr(void)
-{
-	ub_irq_handler();
-}
-
-int main(void)
-{
-	int i;
-	int j = 0;
-	setup_clocks();
-	/* Board led */
-	rcc_periph_clock_enable(RCC_GPIOE);
-	gpio_mode_setup(GPIOE, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, GPIO8);
-	gpio_set(GPIOE, GPIO8);
-
-	/* board init for uart2 on pa2/3 */
-	rcc_periph_clock_enable(RCC_GPIOA);
-        gpio_mode_setup(GPIOA, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO2|GPIO3);
-	/* usart is AF7 */
-        gpio_set_af(GPIOA, GPIO_AF7, GPIO2|GPIO3);
-	
-	struct ub_hw ub = {
-		.uart = USART2,
-		.uart_nvic = NVIC_USART2_EXTI26_IRQ,
-		.uart_rcc = RCC_USART2,
-	};
-	ub_init(&ub);
-	printf("hi guys!\n");
-
-	while (1) {
-		gpio_toggle(GPIOE, GPIO8);
-
-		for (i = 0; i < 0x100000; i++) { /* Wait a bit. */
-			__asm__("NOP");
-		}
-		ub_task();
-		gpio_toggle(GPIOE, GPIO8);
-		for (i = 0; i < 0x100000; i++) { /* Wait a bit. */
-			__asm__("NOP");
-		}
-	}
-
-	return 0;
-}
-- 
cgit