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stm: LCD support for PYBv4; fix MMA reading code.

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This commit is contained in:
Damien George 2014-01-23 18:10:42 +00:00
parent b979122dfb
commit 26a00085fe
3 changed files with 82 additions and 22 deletions
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83
stm/lcd.c
View File

@ -13,12 +13,35 @@
#include "font_petme128_8x8.h"
#include "lcd.h"
#if defined(PYBOARD)
#define PYB_LCD_PORT (GPIOA)
#define PYB_LCD_CS1_PIN (GPIO_Pin_0)
#define PYB_LCD_RST_PIN (GPIO_Pin_1)
#define PYB_LCD_A0_PIN (GPIO_Pin_2)
#define PYB_LCD_SCL_PIN (GPIO_Pin_3)
#define PYB_LCD_SI_PIN (GPIO_Pin_4)
#elif defined(PYBOARD4)
// X position
#define PYB_LCD_PORT (GPIOA)
#define PYB_LCD_CS1_PIN (GPIO_Pin_2) // X3
#define PYB_LCD_RST_PIN (GPIO_Pin_3) // X4
#define PYB_LCD_A0_PIN (GPIO_Pin_4) // X5
#define PYB_LCD_SCL_PIN (GPIO_Pin_5) // X6
#define PYB_LCD_SI_PIN (GPIO_Pin_7) // X8
#define PYB_LCD_BL_PORT (GPIOC)
#define PYB_LCD_BL_PIN (GPIO_Pin_5) // X12
/*
// Y position
#define PYB_LCD_PORT (GPIOB)
#define PYB_LCD_CS1_PIN (GPIO_Pin_8) // Y3 = PB8
#define PYB_LCD_RST_PIN (GPIO_Pin_9) // Y4 = PB9
#define PYB_LCD_A0_PIN (GPIO_Pin_12) // Y5 = PB12
#define PYB_LCD_SCL_PIN (GPIO_Pin_13) // Y6 = PB13
#define PYB_LCD_SI_PIN (GPIO_Pin_15) // Y8 = PB15
#define PYB_LCD_BL_PORT (GPIOB)
#define PYB_LCD_BL_PIN (GPIO_Pin_1) // Y12 = PB1
*/
#endif
#define LCD_INSTR (0)
#define LCD_DATA (1)
@ -171,7 +194,25 @@ mp_obj_t lcd_print(mp_obj_t text) {
return mp_const_none;
}
void lcd_init(void) {
mp_obj_t lcd_light(mp_obj_t value) {
#if defined(PYB_LCD_BL_PORT)
if (rt_is_true(value)) {
PYB_LCD_BL_PORT->BSRRL = PYB_LCD_BL_PIN; // set pin high to turn backlight on
} else {
PYB_LCD_BL_PORT->BSRRH = PYB_LCD_BL_PIN; // set pin low to turn backlight off
}
#endif
return mp_const_none;
}
static mp_obj_t mp_lcd = MP_OBJ_NULL;
static mp_obj_t pyb_lcd_init(void) {
if (mp_lcd != MP_OBJ_NULL) {
// already init'd
return mp_lcd;
}
// set the outputs high
PYB_LCD_PORT->BSRRL = PYB_LCD_CS1_PIN;
PYB_LCD_PORT->BSRRL = PYB_LCD_RST_PIN;
@ -188,6 +229,17 @@ void lcd_init(void) {
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(PYB_LCD_PORT, &GPIO_InitStructure);
#if defined(PYB_LCD_BL_PORT)
// backlight drive pin, starts low (off)
PYB_LCD_BL_PORT->BSRRH = PYB_LCD_BL_PIN;
GPIO_InitStructure.GPIO_Pin = PYB_LCD_BL_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(PYB_LCD_BL_PORT, &GPIO_InitStructure);
#endif
// init the LCD
sys_tick_delay_ms(1); // wait a bit
PYB_LCD_PORT->BSRRH = PYB_LCD_RST_PIN; // RST=0; reset
@ -221,16 +273,25 @@ void lcd_init(void) {
lcd_column = 0;
lcd_next_line = 0;
// Python interface
mp_obj_t m = mp_obj_new_module(QSTR_FROM_STR_STATIC("lcd"));
rt_store_attr(m, QSTR_FROM_STR_STATIC("lcd8"), rt_make_function_n(2, lcd_draw_pixel_8));
rt_store_attr(m, QSTR_FROM_STR_STATIC("clear"), rt_make_function_n(0, lcd_pix_clear));
rt_store_attr(m, QSTR_FROM_STR_STATIC("get"), rt_make_function_n(2, lcd_pix_get));
rt_store_attr(m, QSTR_FROM_STR_STATIC("set"), rt_make_function_n(2, lcd_pix_set));
rt_store_attr(m, QSTR_FROM_STR_STATIC("reset"), rt_make_function_n(2, lcd_pix_reset));
rt_store_attr(m, QSTR_FROM_STR_STATIC("show"), rt_make_function_n(0, lcd_pix_show));
rt_store_attr(m, QSTR_FROM_STR_STATIC("text"), rt_make_function_n(1, lcd_print));
rt_store_name(QSTR_FROM_STR_STATIC("lcd"), m);
// Micro Python interface
mp_obj_t o = mp_obj_new_type("LCD", mp_const_empty_tuple, mp_obj_new_dict(0));
rt_store_attr(o, qstr_from_str("lcd8"), rt_make_function_n(2, lcd_draw_pixel_8));
rt_store_attr(o, qstr_from_str("clear"), rt_make_function_n(0, lcd_pix_clear));
rt_store_attr(o, qstr_from_str("get"), rt_make_function_n(2, lcd_pix_get));
rt_store_attr(o, qstr_from_str("set"), rt_make_function_n(2, lcd_pix_set));
rt_store_attr(o, qstr_from_str("reset"), rt_make_function_n(2, lcd_pix_reset));
rt_store_attr(o, qstr_from_str("show"), rt_make_function_n(0, lcd_pix_show));
rt_store_attr(o, qstr_from_str("text"), rt_make_function_n(1, lcd_print));
rt_store_attr(o, qstr_from_str("light"), rt_make_function_n(1, lcd_light));
mp_lcd = o;
return o;
}
static MP_DEFINE_CONST_FUN_OBJ_0(pyb_lcd_init_obj, pyb_lcd_init);
void lcd_init(void) {
mp_lcd = MP_OBJ_NULL;
rt_store_name(qstr_from_str("LCD"), (mp_obj_t)&pyb_lcd_init_obj);
}
void lcd_print_str(const char *str) {

4
stm/main.c
View File

@ -768,8 +768,8 @@ soft_reset:
qstr_init();
rt_init();
// LCD init
//lcd_init(); disabled while servos on PA0 PA1
// LCD init (create in with LCD())
lcd_init();
// servo
servo_init();

17
stm/mma.c
View File

@ -263,12 +263,12 @@ mp_obj_t pyb_mma_read(void) {
int jolt_info = mma_read_nack();
mp_obj_t data[4];
data[0] = mp_obj_new_int(jolt_info);
data[1] = mp_obj_new_int(mma_buf[2] + mma_buf[5] + mma_buf[8] + mma_buf[11]);
data[2] = mp_obj_new_int(mma_buf[1] + mma_buf[4] + mma_buf[7] + mma_buf[10]);
data[3] = mp_obj_new_int(mma_buf[0] + mma_buf[3] + mma_buf[6] + mma_buf[9]);
data[0] = mp_obj_new_int(mma_buf[0] + mma_buf[3] + mma_buf[6] + mma_buf[9]);
data[1] = mp_obj_new_int(mma_buf[1] + mma_buf[4] + mma_buf[7] + mma_buf[10]);
data[2] = mp_obj_new_int(mma_buf[2] + mma_buf[5] + mma_buf[8] + mma_buf[11]);
data[3] = mp_obj_new_int(jolt_info);
return rt_build_tuple(4, data); // items in reverse order in data
return rt_build_tuple(4, data);
}
MP_DEFINE_CONST_FUN_OBJ_0(pyb_mma_read_obj, pyb_mma_read);
@ -279,11 +279,11 @@ mp_obj_t pyb_mma_read_all(void) {
mma_send_byte(0);
mma_restart(MMA_ADDR, 0);
for (int i = 0; i <= 9; i++) {
data[10 - i] = mp_obj_new_int(mma_read_ack());
data[i] = mp_obj_new_int(mma_read_ack());
}
data[0] = mp_obj_new_int(mma_read_nack());
data[10] = mp_obj_new_int(mma_read_nack());
return rt_build_tuple(11, data); // items in reverse order in data
return rt_build_tuple(11, data);
}
MP_DEFINE_CONST_FUN_OBJ_0(pyb_mma_read_all_obj, pyb_mma_read_all);
@ -298,4 +298,3 @@ mp_obj_t pyb_mma_write_mode(mp_obj_t o_int, mp_obj_t o_mode) {
}
MP_DEFINE_CONST_FUN_OBJ_2(pyb_mma_write_mode_obj, pyb_mma_write_mode);