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sdfgdsfg

memlib
Ondřej Hruška 6 years ago
parent
commit
58faf80df8
  1. 29
      project/dotmatrix.c
  2. 12
      project/dotmatrix.h
  3. 34
      project/main.c

29
project/dotmatrix.c

@ -1,6 +1,7 @@
#include "max2719.h"
#include "dotmatrix.h"
#include "malloc_safe.h"
#include "com/debug.h"
DotMatrix_Cfg* dmtx_init(DotMatrix_Init *init)
{
@ -37,6 +38,11 @@ void dmtx_show(DotMatrix_Cfg* dmtx)
}
}
void dmtx_clear(DotMatrix_Cfg* dmtx)
{
memset(dmtx->screen, 0, dmtx->drv.chain_len*8);
}
void dmtx_intensity(DotMatrix_Cfg* dmtx, uint8_t intensity)
{
max2719_cmd_all(&dmtx->drv, MAX2719_CMD_INTENSITY, intensity & 0x0F);
@ -46,3 +52,26 @@ void dmtx_blank(DotMatrix_Cfg* dmtx, bool blank)
{
max2719_cmd_all(&dmtx->drv, MAX2719_CMD_SHUTDOWN, blank & 0x01);
}
void dmtx_set(DotMatrix_Cfg* dmtx, int32_t x, int32_t y, bool bit)
{
if (x < 0 || y < 0) return;
if ((uint32_t)x >= dmtx->cols*8 || (uint32_t)y >= dmtx->rows*8) return;
uint32_t cell_x = (uint32_t)x >> 3;
uint8_t xd = x & 7;
// resolve cell
uint32_t digit = y & 7;
cell_x += ((uint32_t)y >> 3) * dmtx->cols;
uint32_t cell_idx = (digit * dmtx->drv.chain_len) + cell_x;
uint8_t *cell = &dmtx->screen[cell_idx];
if (bit) {
*cell |= bit << xd;
} else {
*cell &= ~(bit << xd);
}
}

12
project/dotmatrix.h

@ -34,4 +34,16 @@ void dmtx_intensity(DotMatrix_Cfg* dmtx, uint8_t intensity);
/** Display on/off */
void dmtx_blank(DotMatrix_Cfg* dmtx, bool blank);
/**
* @brief Send a single bit
* @param dmtx : driver struct
* @param x : pixel X
* @param y : pixel Y
* @param bit : 1 or 0
*/
void dmtx_set(DotMatrix_Cfg* dmtx, int32_t x, int32_t y, bool bit);
/** Clear the screen (not showing) */
void dmtx_clear(DotMatrix_Cfg* dmtx);
#endif // MATRIXDSP_H

34
project/main.c

@ -35,15 +35,12 @@ int main(void)
dmtx_cfg.CS_GPIOx = GPIOA;
dmtx_cfg.CS_PINx = GPIO_Pin_4;
dmtx_cfg.SPIx = SPI1;
dmtx_cfg.cols = 4;
dmtx_cfg.rows = 1;
dmtx_cfg.cols = 2;
dmtx_cfg.rows = 2;
dmtx = dmtx_init(&dmtx_cfg);
dmtx->screen[0] = 0xF0;
dmtx->screen[4] = 0x0F;
dmtx_show(dmtx);
dmtx_intensity(dmtx, 2);
ms_time_t last;
while (1) {
@ -52,10 +49,27 @@ int main(void)
}
poll_subsystems();
dmtx_blank(dmtx, false);
delay_ms(250);
dmtx_blank(dmtx, true);
delay_ms(250);
// 1
dmtx_clear(dmtx);
for (int i = 0; i <= 15; i++) {
dmtx_set(dmtx, i, i, true);
dmtx_set(dmtx, i+2, i-2, true);
dmtx_set(dmtx, i-2, i+2, true);
}
dmtx_show(dmtx);
delay_ms(500);
// 2
dmtx_clear(dmtx);
for (int i = 0; i <= 15; i++) {
dmtx_set(dmtx, 15-i, i, true);
dmtx_set(dmtx, 15-(i+2), i-2, true);
dmtx_set(dmtx, 15-(i-2), i+2, true);
}
dmtx_show(dmtx);
delay_ms(500);
}
}

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