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authorjaseg <git@jaseg.net>2017-08-13 15:48:48 +0200
committerjaseg <git@jaseg.net>2017-08-13 15:48:48 +0200
commit7a5791e976ec79107078fa654a8067ec4f1a0587 (patch)
tree2790d1f4c9eaf350fe249a598bca4f42f04c6501 /fw
parent1ae37bce5b24d0a0a7eca55087772891064e6859 (diff)
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Board rev 0.3 working
Diffstat (limited to 'fw')
-rw-r--r--fw/main.c57
1 files changed, 45 insertions, 12 deletions
diff --git a/fw/main.c b/fw/main.c
index 2e7b56e..73e7280 100644
--- a/fw/main.c
+++ b/fw/main.c
@@ -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;
+ }
}
}
}