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-rw-r--r--stm/main.c513
1 files changed, 188 insertions, 325 deletions
diff --git a/stm/main.c b/stm/main.c
index 1e973cf0e6..30099d3663 100644
--- a/stm/main.c
+++ b/stm/main.c
@@ -1,13 +1,14 @@
#include <stm32f4xx.h>
#include <stm32f4xx_rcc.h>
+#include <stm32f4xx_gpio.h>
+#include <stm_misc.h>
#include "std.h"
#include "misc.h"
+#include "systick.h"
#include "led.h"
+#include "lcd.h"
#include "storage.h"
-#include "font_petme128_8x8.h"
-
-void delay_ms(int ms);
static void impl02_c_version() {
int x = 0;
@@ -35,25 +36,21 @@ void gpio_init() {
RCC->AHB1ENR |= RCC_AHB1ENR_CCMDATARAMEN | RCC_AHB1ENR_GPIOCEN | RCC_AHB1ENR_GPIOBEN | RCC_AHB1ENR_GPIOAEN;
}
-void gpio_pin_init(GPIO_TypeDef *gpio, uint32_t pin, uint32_t moder, uint32_t otyper, uint32_t ospeedr, uint32_t pupdr) {
- set_bits(&gpio->MODER, 2 * pin, 3, moder);
- set_bits(&gpio->OTYPER, pin, 1, otyper);
- set_bits(&gpio->OSPEEDR, 2 * pin, 3, ospeedr);
- set_bits(&gpio->PUPDR, 2 * pin, 3, pupdr);
-}
-
+/*
void gpio_pin_af(GPIO_TypeDef *gpio, uint32_t pin, uint32_t af) {
// set the AF bits for the given pin
// pins 0-7 use low word of AFR, pins 8-15 use high word
set_bits(&gpio->AFR[pin >> 3], 4 * (pin & 0x07), 0xf, af);
}
+*/
static void mma_init() {
+ // XXX
RCC->APB1ENR |= RCC_APB1ENR_I2C1EN; // enable I2C1
- gpio_pin_init(GPIOB, 6 /* B6 is SCL */, 2 /* AF mode */, 1 /* open drain output */, 1 /* 25 MHz */, 0 /* no pull up or pull down */);
- gpio_pin_init(GPIOB, 7 /* B7 is SDA */, 2 /* AF mode */, 1 /* open drain output */, 1 /* 25 MHz */, 0 /* no pull up or pull down */);
- gpio_pin_af(GPIOB, 6, 4 /* AF 4 for I2C1 */);
- gpio_pin_af(GPIOB, 7, 4 /* AF 4 for I2C1 */);
+ //gpio_pin_init(GPIOB, 6 /* B6 is SCL */, 2 /* AF mode */, 1 /* open drain output */, 1 /* 25 MHz */, 0 /* no pull up or pull down */);
+ //gpio_pin_init(GPIOB, 7 /* B7 is SDA */, 2 /* AF mode */, 1 /* open drain output */, 1 /* 25 MHz */, 0 /* no pull up or pull down */);
+ //gpio_pin_af(GPIOB, 6, 4 /* AF 4 for I2C1 */);
+ //gpio_pin_af(GPIOB, 7, 4 /* AF 4 for I2C1 */);
// get clock speeds
RCC_ClocksTypeDef rcc_clocks;
@@ -160,15 +157,19 @@ static void mma_stop() {
}
#define PYB_USRSW_PORT (GPIOA)
-#define PYB_USRSW_PORT_NUM (13)
+#define PYB_USRSW_PIN (GPIO_Pin_13)
void sw_init() {
// make it an input with pull-up
- gpio_pin_init(PYB_USRSW_PORT, PYB_USRSW_PORT_NUM, 0, 0, 0, 1);
+ GPIO_InitTypeDef GPIO_InitStructure;
+ GPIO_InitStructure.GPIO_Pin = PYB_USRSW_PIN;
+ GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
+ GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
+ GPIO_Init(PYB_USRSW_PORT, &GPIO_InitStructure);
}
int sw_get() {
- if (PYB_USRSW_PORT->IDR & (1 << PYB_USRSW_PORT_NUM)) {
+ if (PYB_USRSW_PORT->IDR & PYB_USRSW_PIN) {
// pulled high, so switch is not pressed
return 0;
} else {
@@ -177,191 +178,6 @@ int sw_get() {
}
}
-#define PYB_LCD_PORT (GPIOA)
-#define PYB_LCD_CS1_PIN (0)
-#define PYB_LCD_RST_PIN (1)
-#define PYB_LCD_A0_PIN (2)
-#define PYB_LCD_SCL_PIN (3)
-#define PYB_LCD_SI_PIN (4)
-
-static void lcd_comm_out(uint8_t i) {
- delay_ms(0);
- PYB_LCD_PORT->BSRRH = 1 << PYB_LCD_CS1_PIN; // CS=0; enable
- PYB_LCD_PORT->BSRRH = 1 << PYB_LCD_A0_PIN; // A0=0; select instr reg
- // send byte bigendian, latches on rising clock
- for (uint32_t n = 0; n < 8; n++) {
- delay_ms(0);
- PYB_LCD_PORT->BSRRH = 1 << PYB_LCD_SCL_PIN; // SCL=0
- if ((i & 0x80) == 0) {
- PYB_LCD_PORT->BSRRH = 1 << PYB_LCD_SI_PIN; // SI=0
- } else {
- PYB_LCD_PORT->BSRRL = 1 << PYB_LCD_SI_PIN; // SI=1
- }
- i <<= 1;
- delay_ms(0);
- PYB_LCD_PORT->BSRRL = 1 << PYB_LCD_SCL_PIN; // SCL=1
- }
- PYB_LCD_PORT->BSRRL = 1 << PYB_LCD_CS1_PIN; // CS=1; disable
-
- /*
- in Python, native types:
- CS1_PIN(const) = 0
- n = int(0)
- delay_ms(0)
- PORT[word:BSRRH] = 1 << CS1_PIN
- for n in range(0, 8):
- delay_ms(0)
- PORT[word:BSRRH] = 1 << SCL_PIN
- if i & 0x80 == 0:
- PORT[word:BSRRH] = 1 << SI_PIN
- else:
- PORT[word:BSRRL] = 1 << SI_PIN
- i <<= 1
- delay_ms(0)
- PORT[word:BSRRL] = 1 << SCL_PIN
- */
-}
-
-static void lcd_data_out(uint8_t i) {
- delay_ms(0);
- PYB_LCD_PORT->BSRRH = 1 << PYB_LCD_CS1_PIN; // CS=0; enable
- PYB_LCD_PORT->BSRRL = 1 << PYB_LCD_A0_PIN; // A0=1; select data reg
- // send byte bigendian, latches on rising clock
- for (uint32_t n = 0; n < 8; n++) {
- delay_ms(0);
- PYB_LCD_PORT->BSRRH = 1 << PYB_LCD_SCL_PIN; // SCL=0
- if ((i & 0x80) == 0) {
- PYB_LCD_PORT->BSRRH = 1 << PYB_LCD_SI_PIN; // SI=0
- } else {
- PYB_LCD_PORT->BSRRL = 1 << PYB_LCD_SI_PIN; // SI=1
- }
- i <<= 1;
- delay_ms(0);
- PYB_LCD_PORT->BSRRL = 1 << PYB_LCD_SCL_PIN; // SCL=1
- }
- PYB_LCD_PORT->BSRRL = 1 << PYB_LCD_CS1_PIN; // CS=1; disable
-}
-
-#define LCD_BUF_W (16)
-#define LCD_BUF_H (4)
-char lcd_buffer[LCD_BUF_W * LCD_BUF_H];
-int lcd_line;
-int lcd_column;
-int lcd_next_line;
-
-void lcd_print_strn(const char *str, unsigned int len) {
- int redraw_min = lcd_line * LCD_BUF_W + lcd_column;
- int redraw_max = redraw_min;
- int did_new_line = 0;
- for (; len > 0; len--, str++) {
- // move to next line if needed
- if (lcd_next_line) {
- if (lcd_line + 1 < LCD_BUF_H) {
- lcd_line += 1;
- } else {
- lcd_line = LCD_BUF_H - 1;
- for (int i = 0; i < LCD_BUF_W * (LCD_BUF_H - 1); i++) {
- lcd_buffer[i] = lcd_buffer[i + LCD_BUF_W];
- }
- for (int i = 0; i < LCD_BUF_W; i++) {
- lcd_buffer[LCD_BUF_W * (LCD_BUF_H - 1) + i] = ' ';
- }
- redraw_min = 0;
- redraw_max = LCD_BUF_W * LCD_BUF_H;
- }
- lcd_next_line = 0;
- lcd_column = 0;
- did_new_line = 1;
- }
- if (*str == '\n') {
- lcd_next_line = 1;
- } else if (lcd_column >= LCD_BUF_W) {
- lcd_next_line = 1;
- str -= 1;
- len += 1;
- } else {
- lcd_buffer[lcd_line * LCD_BUF_W + lcd_column] = *str;
- lcd_column += 1;
- int max = lcd_line * LCD_BUF_W + lcd_column;
- if (max > redraw_max) {
- redraw_max = max;
- }
- }
- }
-
- int last_page = -1;
- for (int i = redraw_min; i < redraw_max; i++) {
- int page = i / LCD_BUF_W;
- if (page != last_page) {
- int offset = 8 * (i - (page * LCD_BUF_W));
- lcd_comm_out(0xb0 | page); // page address set
- lcd_comm_out(0x10 | ((offset >> 4) & 0x0f)); // column address set upper
- lcd_comm_out(0x00 | (offset & 0x0f)); // column address set lower
- last_page = page;
- }
- int chr = lcd_buffer[i];
- if (chr < 32 || chr > 126) {
- chr = 127;
- }
- const uint8_t *chr_data = &font_petme128_8x8[(chr - 32) * 8];
- for (int i = 0; i < 8; i++) {
- lcd_data_out(chr_data[i]);
- }
- }
-
- if (did_new_line) {
- delay_ms(200);
- }
-}
-
-static void lcd_init() {
- // set the outputs high
- PYB_LCD_PORT->BSRRL = 1 << PYB_LCD_CS1_PIN;
- PYB_LCD_PORT->BSRRL = 1 << PYB_LCD_RST_PIN;
- PYB_LCD_PORT->BSRRL = 1 << PYB_LCD_A0_PIN;
- PYB_LCD_PORT->BSRRL = 1 << PYB_LCD_SCL_PIN;
- PYB_LCD_PORT->BSRRL = 1 << PYB_LCD_SI_PIN;
- // make them push/pull outputs
- gpio_pin_init(PYB_LCD_PORT, PYB_LCD_CS1_PIN, 1, 0, 0, 0);
- gpio_pin_init(PYB_LCD_PORT, PYB_LCD_RST_PIN, 1, 0, 0, 0);
- gpio_pin_init(PYB_LCD_PORT, PYB_LCD_A0_PIN, 1, 0, 0, 0);
- gpio_pin_init(PYB_LCD_PORT, PYB_LCD_SCL_PIN, 1, 0, 0, 0);
- gpio_pin_init(PYB_LCD_PORT, PYB_LCD_SI_PIN, 1, 0, 0, 0);
-
- // init the LCD
- delay_ms(1); // wait a bit
- PYB_LCD_PORT->BSRRH = 1 << PYB_LCD_RST_PIN; // RST=0; reset
- delay_ms(1); // wait for reset; 2us min
- PYB_LCD_PORT->BSRRL = 1 << PYB_LCD_RST_PIN; // RST=1; enable
- delay_ms(1); // wait for reset; 2us min
- lcd_comm_out(0xa0); // ADC select, normal
- lcd_comm_out(0xc8); // common output mode select, reverse
- lcd_comm_out(0xa2); // LCD bias set, 1/9 bias
- lcd_comm_out(0x2f); // power control set, 0b111=(booster on, vreg on, vfollow on)
- lcd_comm_out(0x21); // v0 voltage regulator internal resistor ratio set, 0b001=small
- lcd_comm_out(0x81); // electronic volume mode set
- lcd_comm_out(0x34); // electronic volume register set, 0b110100
- lcd_comm_out(0x40); // display start line set, 0
- lcd_comm_out(0xaf); // LCD display, on
-
- // clear display
- for (int page = 0; page < 4; page++) {
- lcd_comm_out(0xb0 | page); // page address set
- lcd_comm_out(0x10); // column address set upper
- lcd_comm_out(0x00); // column address set lower
- for (int i = 0; i < 128; i++) {
- lcd_data_out(0x00);
- }
- }
-
- for (int i = 0; i < LCD_BUF_H * LCD_BUF_W; i++) {
- lcd_buffer[i] = ' ';
- }
- lcd_line = 0;
- lcd_column = 0;
- lcd_next_line = 0;
-}
-
void __fatal_error(const char *msg) {
lcd_print_strn("\nFATAL ERROR:\n", 14);
lcd_print_strn(msg, strlen(msg));
@@ -369,10 +185,10 @@ void __fatal_error(const char *msg) {
for (;;) {
led_state(PYB_LED_R1, 1);
led_state(PYB_LED_R2, 0);
- delay_ms(150);
+ sys_tick_delay_ms(150);
led_state(PYB_LED_R1, 0);
led_state(PYB_LED_R2, 1);
- delay_ms(150);
+ sys_tick_delay_ms(150);
}
}
@@ -384,7 +200,7 @@ void __fatal_error(const char *msg) {
#include "runtime.h"
py_obj_t pyb_delay(py_obj_t count) {
- delay_ms(rt_get_int(count));
+ sys_tick_delay_ms(rt_get_int(count));
return py_const_none;
}
@@ -436,87 +252,181 @@ void nlr_test() {
}
*/
+void fatality() {
+ led_state(PYB_LED_R1, 1);
+ led_state(PYB_LED_G1, 1);
+ led_state(PYB_LED_R2, 1);
+ led_state(PYB_LED_G2, 1);
+}
+
+static const char *fresh_boot_py =
+"# boot.py -- run on boot-up\n"
+"# can run arbitrary Python, but best to keep it minimal\n"
+"\n"
+"pyb.source_dir('/src')\n"
+"pyb.main('main.py')\n"
+"#pyb.usb_usr('VCP')\n"
+"#pyb.usb_msd(True, 'dual partition')\n"
+"#pyb.flush_cache(False)\n"
+"#pyb.error_log('error.txt')\n"
+;
+
+// get lots of info about the board
+static void board_info() {
+ // get and print clock speeds
+ // SYSCLK=168MHz, HCLK=168MHz, PCLK1=42MHz, PCLK2=84MHz
+ {
+ RCC_ClocksTypeDef rcc_clocks;
+ RCC_GetClocksFreq(&rcc_clocks);
+ printf("S=%lu\nH=%lu\nP1=%lu\nP2=%lu\n", rcc_clocks.SYSCLK_Frequency, rcc_clocks.HCLK_Frequency, rcc_clocks.PCLK1_Frequency, rcc_clocks.PCLK2_Frequency);
+ }
+
+ // to print info about memory
+ {
+ extern void *_sidata;
+ extern void *_sdata;
+ extern void *_edata;
+ extern void *_sbss;
+ extern void *_ebss;
+ extern void *_estack;
+ extern void *_etext;
+ extern void *_heap_start;
+ printf("_sidata=%p\n", &_sidata);
+ printf("_sdata=%p\n", &_sdata);
+ printf("_edata=%p\n", &_edata);
+ printf("_sbss=%p\n", &_sbss);
+ printf("_ebss=%p\n", &_ebss);
+ printf("_estack=%p\n", &_estack);
+ printf("_etext=%p\n", &_etext);
+ printf("_heap_start=%p\n", &_heap_start);
+ }
+
+ // free space on flash
+ {
+ DWORD nclst;
+ FATFS *fatfs;
+ f_getfree("0:", &nclst, &fatfs);
+ printf("free=%u\n", (uint)(nclst * fatfs->csize * 512));
+ }
+}
+
int main() {
// TODO disable JTAG
- qstr_init();
- rt_init();
-
+ // basic sub-system init
+ sys_tick_init();
gpio_init();
led_init();
+
+ // turn on LED to indicate bootup
+ led_state(PYB_LED_G1, 1);
+
+ // more sub-system init
sw_init();
lcd_init();
storage_init();
+ // Python init
+ qstr_init();
+ rt_init();
+
// print a message
printf(" micro py board\n");
- // flash to indicate we are alive!
- for (int i = 0; i < 2; i++) {
- led_state(PYB_LED_R1, 1);
- led_state(PYB_LED_R2, 0);
- delay_ms(100);
- led_state(PYB_LED_R1, 0);
- led_state(PYB_LED_R2, 1);
- delay_ms(100);
+ // local filesystem init
+ {
+ // try to mount the flash
+ FRESULT res = f_mount(&fatfs0, "0:", 1);
+ if (res == FR_OK) {
+ // mount sucessful
+ } else if (res == FR_NO_FILESYSTEM) {
+ // no filesystem, so create a fresh one
+
+ // LED on to indicate creation of LFS
+ led_state(PYB_LED_R2, 1);
+ uint32_t stc = sys_tick_counter;
+
+ res = f_mkfs("0:", 0, 0);
+ if (res == FR_OK) {
+ // success creating fresh LFS
+ } else {
+ __fatal_error("could not create LFS");
+ }
+
+ // keep LED on for at least 100ms
+ sys_tick_wait_at_least(stc, 100);
+ led_state(PYB_LED_R2, 0);
+ } else {
+ __fatal_error("could not access LFS");
+ }
}
- // turn LEDs off
- led_state(PYB_LED_R1, 0);
- led_state(PYB_LED_R2, 0);
+ // make sure we have a /boot.py
+ {
+ FILINFO fno;
+ FRESULT res = f_stat("0:/boot.py", &fno);
+ if (res == FR_OK) {
+ if (fno.fattrib & AM_DIR) {
+ // exists as a directory
+ // TODO handle this case
+ // see http://elm-chan.org/fsw/ff/img/app2.c for a "rm -rf" implementation
+ } else {
+ // exists as a file, good!
+ }
+ } else {
+ // doesn't exist, create fresh file
+
+ // LED on to indicate creation of boot.py
+ led_state(PYB_LED_R2, 1);
+ uint32_t stc = sys_tick_counter;
+
+ FIL fp;
+ f_open(&fp, "0:/boot.py", FA_WRITE | FA_CREATE_ALWAYS);
+ UINT n;
+ f_write(&fp, fresh_boot_py, sizeof(fresh_boot_py), &n);
+ // TODO check we could write n bytes
+ f_close(&fp);
+
+ // keep LED on for at least 100ms
+ sys_tick_wait_at_least(stc, 100);
+ led_state(PYB_LED_R2, 0);
+ }
+ }
+
+ // run /boot.py
+ if (0) {
+ FIL fp;
+ f_open(&fp, "0:/boot.py", FA_READ);
+ UINT n;
+ char buf[20];
+ f_read(&fp, buf, 18, &n);
+ buf[n + 1] = 0;
+ printf("read %d\n%s", n, buf);
+ f_close(&fp);
+ }
+
+ // turn boot-up LED off
led_state(PYB_LED_G1, 0);
- led_state(PYB_LED_G2, 0);
- // get and print clock speeds
- // SYSCLK=168MHz, HCLK=168MHz, PCLK1=42MHz, PCLK2=84MHz
/*
- {
- RCC_ClocksTypeDef rcc_clocks;
- RCC_GetClocksFreq(&rcc_clocks);
- printf("S=%lu H=%lu P1=%lu P2=%lu\n", rcc_clocks.SYSCLK_Frequency, rcc_clocks.HCLK_Frequency, rcc_clocks.PCLK1_Frequency, rcc_clocks.PCLK2_Frequency);
- delay_ms(1000);
+ for (;;) {
+ led_state(PYB_LED_G2, 1);
+ sys_tick_wait_at_least(sys_tick_counter, 500);
+ led_state(PYB_LED_G2, 0);
+ sys_tick_wait_at_least(sys_tick_counter, 500);
}
*/
// USB
- if (1) {
+ if (0) {
void usb_init();
usb_init();
}
- /*
- // to print info about memory
- for (;;) {
- led_state(PYB_LED_G1, 1);
- delay_ms(100);
- led_state(PYB_LED_G1, 0);
- extern void *_sidata;
- extern void *_sdata;
- extern void *_edata;
- extern void *_sbss;
- extern void *_ebss;
- extern void *_estack;
- extern void *_etext;
- extern void *_heap_start;
- if (sw_get()) {
- printf("_sidata=%p\n", &_sidata);
- printf("_sdata=%p\n", &_sdata);
- printf("_edata=%p\n", &_edata);
- printf("_sbss=%p\n", &_sbss);
- printf("_ebss=%p\n", &_ebss);
- printf("_estack=%p\n", &_estack);
- printf("_etext=%p\n", &_etext);
- printf("_heap_start=%p\n", &_heap_start);
- delay_ms(1000);
- }
- delay_ms(500);
- }
- */
-
//printf("init;al=%u\n", m_get_total_bytes_allocated()); // 1600, due to qstr_init
- //delay_ms(1000);
+ //sys_tick_delay_ms(1000);
- #if 1
+ #if 0
// Python!
if (0) {
//const char *pysrc = "def f():\n x=x+1\nprint(42)\n";
@@ -612,20 +522,20 @@ int main() {
while (!py_lexer_is_kind(lex, PY_TOKEN_END)) {
py_token_show(py_lexer_cur(lex));
py_lexer_to_next(lex);
- delay_ms(1000);
+ sys_tick_delay_ms(1000);
}
} else {
// nalloc=1740;6340;6836 -> 140;4600;496 bytes for lexer, parser, compiler
printf("lex; al=%u\n", m_get_total_bytes_allocated());
- delay_ms(1000);
+ sys_tick_delay_ms(1000);
py_parse_node_t pn = py_parse(lex, 0);
//printf("----------------\n");
printf("pars;al=%u\n", m_get_total_bytes_allocated());
- delay_ms(1000);
+ sys_tick_delay_ms(1000);
//parse_node_show(pn, 0);
py_compile(pn, false);
printf("comp;al=%u\n", m_get_total_bytes_allocated());
- delay_ms(1000);
+ sys_tick_delay_ms(1000);
if (1) {
// execute it!
@@ -639,7 +549,7 @@ int main() {
// flash once
led_state(PYB_LED_G1, 1);
- delay_ms(100);
+ sys_tick_delay_ms(100);
led_state(PYB_LED_G1, 0);
nlr_buf_t nlr;
@@ -658,12 +568,12 @@ int main() {
// flash once
led_state(PYB_LED_G1, 1);
- delay_ms(100);
+ sys_tick_delay_ms(100);
led_state(PYB_LED_G1, 0);
- delay_ms(1000);
+ sys_tick_delay_ms(1000);
printf("nalloc=%u\n", m_get_total_bytes_allocated());
- delay_ms(1000);
+ sys_tick_delay_ms(1000);
}
}
}
@@ -672,11 +582,11 @@ int main() {
// benchmark C version of impl02.py
if (0) {
led_state(PYB_LED_G1, 1);
- delay_ms(100);
+ sys_tick_delay_ms(100);
led_state(PYB_LED_G1, 0);
impl02_c_version();
led_state(PYB_LED_G1, 1);
- delay_ms(100);
+ sys_tick_delay_ms(100);
led_state(PYB_LED_G1, 0);
}
@@ -713,7 +623,7 @@ int main() {
mma_stop();
for (;;) {
- delay_ms(500);
+ sys_tick_delay_ms(500);
mma_start(0x4c, 1);
mma_send_byte(0);
@@ -734,69 +644,19 @@ int main() {
}
}
- // fatfs testing
- if (0) {
- FRESULT res = f_mount(&fatfs0, "0:", 1);
- if (res == FR_OK) {
- printf("mount success\n");
- } else if (res == FR_NO_FILESYSTEM) {
- res = f_mkfs("0:", 0, 0);
- if (res == FR_OK) {
- printf("mkfs success\n");
- } else {
- printf("mkfs fail %d\n", res);
- }
- } else {
- printf("mount fail %d\n", res);
- }
-
- // write a file
- if (0) {
- FIL fp;
- f_open(&fp, "0:/boot.py", FA_WRITE | FA_CREATE_ALWAYS);
- UINT n;
- f_write(&fp, "# this is boot.py\n", 18, &n);
- printf("wrote %d\n", n);
- f_close(&fp);
- }
-
- // read a file
- if (0) {
- FIL fp;
- f_open(&fp, "0:/boot.py", FA_READ);
- UINT n;
- char buf[20];
- f_read(&fp, buf, 18, &n);
- buf[n + 1] = 0;
- printf("read %d\n%s", n, buf);
- f_close(&fp);
- }
-
- DWORD nclst;
- FATFS *fatfs;
- f_getfree("0:", &nclst, &fatfs);
- printf("free=%u\n", (uint)(nclst * fatfs->csize * 512));
-
- }
-
// SD card testing
if (0) {
//sdio_init();
}
- // USB VCP testing
- if (0) {
- //usb_vcp_init();
- }
-
int i = 0;
int n = 0;
+ uint32_t stc = sys_tick_counter;
for (;;) {
- delay_ms(10);
+ sys_tick_delay_ms(10);
if (sw_get()) {
- led_state(PYB_LED_R1, 1);
- led_state(PYB_LED_G1, 0);
+ led_state(PYB_LED_G1, 1);
i = 1 - i;
if (i) {
printf(" angel %05x.\n", n);
@@ -807,8 +667,11 @@ int main() {
}
n += 1;
} else {
- led_state(PYB_LED_R1, 0);
- led_state(PYB_LED_G1, 1);
+ led_state(PYB_LED_G1, 0);
+ }
+ if (sys_tick_has_passed(stc, 500)) {
+ stc = sys_tick_counter;
+ led_toggle(PYB_LED_G2);
}
}
generated by cgit v1.2.3 (git 2.39.1) at 2025-06-23 17:46:01 +0000