jaseg/7seg
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Board rev 0.3 working

Browse source
This commit is contained in:
jaseg 2017-08-13 15:48:48 +02:00
parent 1ae37bce5b
commit 7a5791e976
1 changed files with 45 additions and 12 deletions
Download patch file Download diff file Expand all files Collapse all files

57
fw/main.c
View file

@ -32,6 +32,11 @@ void strobe_leds(void) {
GPIOA->BSRR = GPIO_BSRR_BR_9;
}
#define SR_COMM 0x0002
#define SR_ERROR 0x0004
#define SR_ID 0x0008
#define SR_ILED_HIGH 0x0080
#define SR_ILED_LOW 0x0040
int main(void) {
RCC->CR |= RCC_CR_HSEON;
while (!(RCC->CR&RCC_CR_HSERDY));
@ -77,27 +82,55 @@ int main(void) {
SPI1->CR1 = SPI_CR1_BIDIMODE | SPI_CR1_BIDIOE | SPI_CR1_SSM | SPI_CR1_SSI | SPI_CR1_SPE | (0<<SPI_CR1_BR_Pos) | SPI_CR1_MSTR | SPI_CR1_CPOL | SPI_CR1_CPHA;
int val = 0xffff;
GPIOA->BSRR = GPIO_BSRR_BR_6;
int aval = 0x0000;
GPIOA->BSRR = GPIO_BSRR_BR_6; /* OE */
int j = 0;
int bval = 0x4000;
int ctr = 0;
int q = 0;
int bval = 0x400;
while (42) {
for (int i=0; i<8; i++) {
spi_send(val);
spi_send(val);
spi_send(1<<(ctr&3));
spi_send(1<<((ctr>>1)&3));
strobe_leds();
spi_send(0x0200 | bval | (0xff^(1<<i)));
//spi_send(0x0200 | bval | (0xff^(1<<i)));
//spi_send((0xff^(1<<i))<<8);
//spi_send(SR_COMM | SR_ILED_HIGH | 0xff);
//spi_send(0x00ff ^ (1<<ctr) | (0x100<<ctr));
spi_send(bval | (0xff00 ^ (0x100<<i)));
strobe_aux();
for(int i=0; i<10; i++)
tick();
//j++;
j++;
if (j == 1000) {
j = 0;
if (bval == 0x4000)
bval = 0x8000;
else if (bval == 0x8000)
bval = 0x0000;
else
bval = 0x4000;
ctr++;
if (ctr == 8) {
ctr = 0;
q++;
if (q == 6)
q = 0;
}
switch (q) {
case 0:
bval = SR_COMM | SR_ILED_LOW;
break;
case 1:
bval = SR_ID | SR_ILED_LOW;
break;
case 2:
bval = SR_ERROR | SR_ILED_LOW;
break;
case 3:
bval = SR_COMM | SR_ILED_HIGH;
break;
case 4:
bval = SR_ID | SR_ILED_HIGH;
break;
case 5:
bval = SR_ERROR | SR_ILED_HIGH;
break;
}
}
}
}