electro
/
f103-dotmatrix
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

implemented backing array & low lvl funcs

Browse Source
memlib
Ondřej Hruška 10 years ago
parent 94662e35a8
commit 2b866d6623
9 changed files with 265 additions and 210 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 6
      f103-ledmatrix.pro
  2. 48
      project/dotmatrix.c
  3. 37
      project/dotmatrix.h
  4. 115
      project/main.c
  5. 2
      project/malloc_safe.c
  6. 86
      project/matrixdsp.c
  7. 47
      project/matrixdsp.h
  8. 73
      project/max2719.c
  9. 61
      project/max2719.h

6
f103-ledmatrix.pro
Unescape View File

@ -82,7 +82,8 @@ HEADERS += \
project/utils/matcher.h \ project/utils/matcher.h \
project/utils/meanbuf.h \ project/utils/meanbuf.h \
project/display.h \ project/display.h \
project/matrixdsp.h project/max2719.h \
project/dotmatrix.h
SOURCES += \ SOURCES += \
lib/cmsis/core_cm3.c \ lib/cmsis/core_cm3.c \
@ -140,7 +141,8 @@ SOURCES += \
project/utils/matcher.c \ project/utils/matcher.c \
project/utils/meanbuf.c \ project/utils/meanbuf.c \
project/display.c \ project/display.c \
project/matrixdsp.c project/max2719.c \
project/dotmatrix.c
DISTFILES += \ DISTFILES += \
style.astylerc \ style.astylerc \

48
project/dotmatrix.c
Unescape View File

@ -0,0 +1,48 @@
#include "max2719.h"
#include "dotmatrix.h"
#include "malloc_safe.h"
DotMatrix_Cfg* dmtx_init(DotMatrix_Init *init)
{
DotMatrix_Cfg *dmtx = calloc_s(1, sizeof(DotMatrix_Cfg));
dmtx->drv.SPIx = init->SPIx;
dmtx->drv.CS_GPIOx = init->CS_GPIOx;
dmtx->drv.CS_PINx = init->CS_PINx;
dmtx->drv.chain_len = init->cols * init->rows;
dmtx->cols = init->cols;
dmtx->rows = init->rows;
dmtx->screen = calloc_s(init->cols * init->rows * 8, 1); // 8 bytes per driver
max2719_cmd_all(&dmtx->drv, MAX2719_CMD_DECODE_MODE, 0x00); // no decode
max2719_cmd_all(&dmtx->drv, MAX2719_CMD_SCAN_LIMIT, 0x07); // scan all 8
max2719_cmd_all(&dmtx->drv, MAX2719_CMD_SHUTDOWN, 0x01); // not shutdown
max2719_cmd_all(&dmtx->drv, MAX2719_CMD_DISPLAY_TEST, 0x00); // not test
max2719_cmd_all(&dmtx->drv, MAX2719_CMD_INTENSITY, 0x07); // half intensity
// clear
for (uint8_t i = 0; i < 8; i++) {
max2719_cmd_all(&dmtx->drv, MAX2719_CMD_DIGIT0+i, 0);
}
return dmtx;
}
void dmtx_show(DotMatrix_Cfg* dmtx)
{
for (uint8_t i = 0; i < 8; i++) {
// show each digit's array in turn
max2719_cmd_all_data(&dmtx->drv, MAX2719_CMD_DIGIT0+i, dmtx->screen + (i * dmtx->drv.chain_len));
}
}
void dmtx_intensity(DotMatrix_Cfg* dmtx, uint8_t intensity)
{
max2719_cmd_all(&dmtx->drv, MAX2719_CMD_INTENSITY, intensity & 0x0F);
}
void dmtx_blank(DotMatrix_Cfg* dmtx, bool blank)
{
max2719_cmd_all(&dmtx->drv, MAX2719_CMD_SHUTDOWN, blank & 0x01);
}

37
project/dotmatrix.h
Unescape View File

@ -0,0 +1,37 @@
#ifndef MATRIXDSP_H
#define MATRIXDSP_H
#include "main.h"
#include "max2719.h"
typedef struct {
MAX2719_Cfg drv;
uint8_t *screen; /*!< Screen array, organized as series of [all #1 digits], [all #2 digits] ... */
uint32_t cols; /*!< Number of drivers horizontally */
uint32_t rows; /*!< Number of drivers vertically */
} DotMatrix_Cfg;
typedef struct {
SPI_TypeDef *SPIx; /*!< SPI iface used by this instance */
GPIO_TypeDef *CS_GPIOx; /*!< Chip select GPIO port */
uint16_t CS_PINx; /*!< Chip select pin mask */
uint32_t cols; /*!< Number of drivers horizontally */
uint32_t rows; /*!< Number of drivers vertically */
} DotMatrix_Init;
DotMatrix_Cfg* dmtx_init(DotMatrix_Init *init);
/**
* @brief Display the whole screen array
* @param dmtx : driver struct
*/
void dmtx_show(DotMatrix_Cfg* dmtx);
/** Set intensity 0-16 */
void dmtx_intensity(DotMatrix_Cfg* dmtx, uint8_t intensity);
/** Display on/off */
void dmtx_blank(DotMatrix_Cfg* dmtx, bool blank);
#endif // MATRIXDSP_H

115
project/main.c
Unescape View File

@ -13,104 +13,71 @@
#include <math.h> #include <math.h>
#include <sbmp.h> #include <sbmp.h>
#include "matrixdsp.h" //#include "matrixdsp.h"
#include "max2719.h"
#include "dotmatrix.h"
static void poll_subsystems(void) static void poll_subsystems(void);
{
// poll serial buffers (runs callback)
com_poll(debug_iface);
com_poll(data_iface);
// run queued tasks
tq_poll();
// handle queued events
Event evt;
until_timeout(2) { // take 2 ms max
if (eq_take(&evt)) {
run_event_handler(&evt);
} else {
break;
}
}
}
static DotMatrix_Cfg *dmtx;
int main(void) int main(void)
{ {
hw_init(); hw_init();
// display_init();
banner("*** LED MATRIX DEMO ***"); banner("*** LED MATRIX DEMO ***");
banner_info("(c) Ondrej Hruska, 2016"); banner_info("(c) Ondrej Hruska, 2016");
banner_info("Katedra mereni K338, CVUT FEL"); banner_info("Katedra mereni K338, CVUT FEL");
ms_time_t last; DotMatrix_Init dmtx_cfg;
dmtx_cfg.CS_GPIOx = GPIOA;
dmtx_cfg.CS_PINx = GPIO_Pin_4;
dmtx_cfg.SPIx = SPI1;
dmtx_cfg.cols = 4;
dmtx_cfg.rows = 1;
mdsp_send_command_all(CMD_DECODE_MODE, 0x00); dmtx = dmtx_init(&dmtx_cfg);
mdsp_send_command_all(CMD_SCAN_LIMIT, 0x07);
mdsp_send_command_all(CMD_SHUTDOWN, 0x01);
mdsp_send_command_all(CMD_DISPLAY_TEST, 0x00);
mdsp_send_command_all(CMD_INTENSITY, 0x0F);
mdsp_clear();
// ---
const uint16_t inva0[] = {
0b00100000100,
0b00010001000,
0b00111111100,
0b01101110110,
0b11111111111,
0b10111111101,
0b10100000101,
0b00011011000,
};
const uint16_t inva1[] = {
0b00100000100,
0b10010001001,
0b10111111101,
0b11101110111,
0b11111111111,
0b01111111110,
0b00100000100,
0b01000000010,
};
dmtx->screen[0] = 0xF0;
dmtx->screen[4] = 0x0F;
dmtx_show(dmtx);
ms_time_t last;
while (1) { while (1) {
if (ms_loop_elapsed(&last, 500)) { if (ms_loop_elapsed(&last, 500)) {
GPIOC->ODR ^= 1 << 13; GPIOC->ODR ^= 1 << 13;
} }
poll_subsystems(); poll_subsystems();
for(int i = 0; i < 8; i++) { dmtx_blank(dmtx, false);
mdsp_send_command_all(CMD_DIGIT0+i, i); delay_ms(250);
} dmtx_blank(dmtx, true);
delay_ms(500); delay_ms(250);
}
}
for(int i = 7; i >= 0; i--) {
mdsp_send_command_all(CMD_DIGIT0+i, 0x00);
}
delay_ms(500);
/*for (int i = 0; i < 8; i++) {
uint32_t x = __RBIT(inva0[7-i]);
mdsp_set(i, x >> 21);
mdsp_set(8+i, (x >> 29) & 0b111);
}
delay_ms(500);
for (int i = 0; i < 8; i++) { static void poll_subsystems(void)
uint32_t x = __RBIT(inva1[7-i]); {
mdsp_set(i, x >> 21); // poll serial buffers (runs callback)
mdsp_set(8+i, (x >> 29) & 0b111); com_poll(debug_iface);
com_poll(data_iface);
// run queued tasks
tq_poll();
// handle queued events
Event evt;
until_timeout(2) { // take 2 ms max
if (eq_take(&evt)) {
run_event_handler(&evt);
} else {
break;
} }
delay_ms(500);*/
} }
} }

2
project/malloc_safe.c
Unescape View File

@ -29,7 +29,7 @@ void *malloc_safe_do(size_t size, const char* file, uint32_t line)
void *calloc_safe_do(size_t nmemb, size_t size, const char* file, uint32_t line) void *calloc_safe_do(size_t nmemb, size_t size, const char* file, uint32_t line)
{ {
void *mem = calloc(size, nmemb); void *mem = calloc(nmemb, size);
if (mem == NULL) { if (mem == NULL) {
// malloc failed // malloc failed
error("Malloc failed in file %s on line %"PRIu32, file, line); error("Malloc failed in file %s on line %"PRIu32, file, line);

86
project/matrixdsp.c
Unescape View File

@ -1,86 +0,0 @@
#include <main.h>
#include <matrixdsp.h>
#include "com/debug.h"
#include "utils/timebase.h"
static void send_byte(uint8_t b)
{
MDSP_SPIx->DR = b;
while (!(MDSP_SPIx->SR & SPI_SR_TXE));
}
static void set_nss(bool nss)
{
if (nss) {
MDSP_NSS_GPIO->BSRR = MDSP_NSS_PIN;
} else {
MDSP_NSS_GPIO->BRR = MDSP_NSS_PIN;
}
}
static void send_word(MDSP_Command cmd, uint8_t data)
{
send_byte(cmd);
send_byte(data);
}
/**
* @brief Send a command to n-th chained driver
* @param idx Driver index (0, 1, 2 ...)
* @param cmd command to send
* @param data command argument
*/
void mdsp_send_command(uint8_t idx, MDSP_Command cmd, uint8_t data)
{
dbg("Set %d: cmd 0x%02x, data 0x%02x", idx, cmd, data);
set_nss(false);
while (MDSP_SPIx->SR & SPI_SR_BSY);
for (uint8_t i = 0; i < MDSP_CHAIN_COUNT - idx - 1; i++) {
send_word(CMD_NOOP, 0);
}
send_word(cmd, data);
for (uint8_t i = 0; i < idx; i++) {
send_word(CMD_NOOP, 0);
}
while (MDSP_SPIx->SR & SPI_SR_BSY);
set_nss(false);
set_nss(true);
}
void mdsp_send_command_all(MDSP_Command cmd, uint8_t data)
{
//dbg("Set cmd 0x%02x, data 0x%02x ALL", cmd, data);
set_nss(false);
while (MDSP_SPIx->SR & SPI_SR_BSY);
for (uint8_t i = 0; i < MDSP_CHAIN_COUNT; i++) {
send_word(cmd, data);
}
while (MDSP_SPIx->SR & SPI_SR_BSY);
set_nss(false);
set_nss(true);
}
void mdsp_set(uint8_t column, uint8_t bits)
{
if (column >= MDSP_COLUMN_COUNT) return;
mdsp_send_command(column >> 3, CMD_DIGIT0 + (column & 0x7), bits);
}
void mdsp_clear(void)
{
for (uint8_t i = 0; i < 8; i++) {
mdsp_send_command_all(CMD_DIGIT0+i, 0);
}
}

47
project/matrixdsp.h
Unescape View File

@ -1,47 +0,0 @@
#ifndef MATRIXDSP_H
#define MATRIXDSP_H
#include <main.h>
#define MDSP_SPIx SPI1
#define MDSP_NSS_GPIO GPIOA
#define MDSP_NSS_PIN GPIO_Pin_4;
#define MDSP_CHAIN_COUNT 4
#define MDSP_COLUMN_COUNT (MDSP_CHAIN_COUNT*8)
typedef enum {
CMD_NOOP = 0x00,
CMD_DIGIT0 = 0x01,
CMD_DIGIT1 = 0x02,
CMD_DIGIT2 = 0x03,
CMD_DIGIT3 = 0x04,
CMD_DIGIT4 = 0x05,
CMD_DIGIT5 = 0x06,
CMD_DIGIT6 = 0x07,
CMD_DIGIT7 = 0x08,
CMD_DECODE_MODE = 0x09,
CMD_INTENSITY = 0x0A,
CMD_SCAN_LIMIT = 0x0B,
CMD_SHUTDOWN = 0x0C,
CMD_DISPLAY_TEST = 0x0F,
} MDSP_Command;
void mdsp_set(uint8_t column, uint8_t bits);
void mdsp_clear(void);
/**
* @brief Send a command to n-th chained driver
* @param idx Driver index (0, 1, 2 ...)
* @param cmd command to send
* @param data command argument
*/
void mdsp_send_command(uint8_t idx, MDSP_Command cmd, uint8_t data);
void mdsp_send_command_all(MDSP_Command cmd, uint8_t data);
#endif // MATRIXDSP_H

73
project/max2719.c
Unescape View File

@ -0,0 +1,73 @@
#include "max2719.h"
static inline
void send_byte(MAX2719_Cfg *inst, uint8_t b)
{
inst->SPIx->DR = b;
while (!(inst->SPIx->SR & SPI_SR_TXE));
}
static inline
void set_nss(MAX2719_Cfg *inst, bool nss)
{
if (nss) {
inst->CS_GPIOx->BSRR = inst->CS_PINx;
} else {
inst->CS_GPIOx->BRR = inst->CS_PINx;
}
}
static void send_word(MAX2719_Cfg *inst, MAX2719_Command cmd, uint8_t data)
{
send_byte(inst, cmd);
send_byte(inst, data);
}
void max2719_cmd(MAX2719_Cfg *inst, uint32_t nth, MAX2719_Command cmd, uint8_t data)
{
set_nss(inst, 0);
while (inst->SPIx->SR & SPI_SR_BSY);
for (uint32_t i = 0; i < inst->chain_len; i++) {
if (i == inst->chain_len - nth - 1) {
send_word(inst, cmd, data);
} else {
send_word(inst, MAX2719_CMD_NOOP, 0);
}
}
while (inst->SPIx->SR & SPI_SR_BSY);
set_nss(inst, 1);
}
void max2719_cmd_all(MAX2719_Cfg *inst, MAX2719_Command cmd, uint8_t data)
{
set_nss(inst, 0);
while (inst->SPIx->SR & SPI_SR_BSY);
for (uint32_t i = 0; i < inst->chain_len; i++) {
send_word(inst, cmd, data);
}
while (inst->SPIx->SR & SPI_SR_BSY);
set_nss(inst, 1);
}
void max2719_cmd_all_data(MAX2719_Cfg *inst, MAX2719_Command cmd, uint8_t *data)
{
set_nss(inst, 0);
while (inst->SPIx->SR & SPI_SR_BSY);
for (uint32_t i = 0; i < inst->chain_len; i++) {
send_word(inst, cmd, data[inst->chain_len - i - 1]);
}
while (inst->SPIx->SR & SPI_SR_BSY);
set_nss(inst, 1);
}

61
project/max2719.h
Unescape View File

@ -0,0 +1,61 @@
#ifndef MAX2719_H
#define MAX2719_H
#include <main.h>
/** Generic utilities for controlling the MAX2719 display driver */
typedef struct {
SPI_TypeDef *SPIx; /*!< SPI iface used by this instance */
GPIO_TypeDef *CS_GPIOx; /*!< Chip select GPIO port */
uint16_t CS_PINx; /*!< Chip select pin mask */
uint32_t chain_len; /*!< Number of daisy-chained drivers (for "all" or "n-th" commands */
} MAX2719_Cfg;
typedef enum {
MAX2719_CMD_NOOP = 0x00,
MAX2719_CMD_DIGIT0 = 0x01,
MAX2719_CMD_DIGIT1 = 0x02,
MAX2719_CMD_DIGIT2 = 0x03,
MAX2719_CMD_DIGIT3 = 0x04,
MAX2719_CMD_DIGIT4 = 0x05,
MAX2719_CMD_DIGIT5 = 0x06,
MAX2719_CMD_DIGIT6 = 0x07,
MAX2719_CMD_DIGIT7 = 0x08,
MAX2719_CMD_DECODE_MODE = 0x09,
MAX2719_CMD_INTENSITY = 0x0A,
MAX2719_CMD_SCAN_LIMIT = 0x0B,
MAX2719_CMD_SHUTDOWN = 0x0C,
MAX2719_CMD_DISPLAY_TEST = 0x0F,
} MAX2719_Command;
/**
* @brief Send a command to a single driver
* @param inst : config struct
* @param nth : driver index
* @param cmd : command
* @param data : data byte
*/
void max2719_cmd(MAX2719_Cfg *inst, uint32_t nth, MAX2719_Command cmd, uint8_t data);
/**
* @brief Send command to all drivers, with the same data
* @param inst : config struct
* @param cmd : command
* @param data : data byte
*/
void max2719_cmd_all(MAX2719_Cfg *inst, MAX2719_Command cmd, uint8_t data);
/**
* @brief Send command to all drivers, with varying data
* @param inst : config struct
* @param cmd : command
* @param data : array of data bytes (must be long to cover all drivers)
*/
void max2719_cmd_all_data(MAX2719_Cfg *inst, MAX2719_Command cmd, uint8_t *data);
#endif // MAX2719_H
Write Preview
Loading…
Cancel
Save