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Basic command comm works

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This commit is contained in:
jaseg 2019-01-11 22:02:14 +09:00
parent 528d653bde
commit c6547c6e6f
7 changed files with 221 additions and 222 deletions
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2
driver_fw/Makefile
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@ -9,7 +9,7 @@ OBJCOPY := arm-none-eabi-objcopy
OBJDUMP := arm-none-eabi-objdump
SIZE := arm-none-eabi-size
CFLAGS = -g -Wall -std=gnu11 -O1 -fdump-rtl-expand -Wno-discarded-qualifiers
CFLAGS = -g -Wall -std=gnu11 -O0 -fdump-rtl-expand -Wno-discarded-qualifiers
CFLAGS += -mlittle-endian -mcpu=cortex-m3 -mthumb
#CFLAGS += -ffunction-sections -fdata-sections
LDFLAGS = -nostartfiles

30
driver_fw/main.c
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@ -79,12 +79,24 @@ int main(void) {
NVIC_EnableIRQ(TIM1_UP_IRQn);
NVIC_SetPriority(TIM1_UP_IRQn, 3<<4);
uint8_t txbuf[128];
unsigned char x, a, b, c;
unsigned char random() {
x++; //x is incremented every round and is not affected by any other variable
a = (a ^ c ^ x); //note the mix of addition and XOR
b = (b + a); //And the use of very few instructions
c = ((c + (b >> 1) ^ a)); // the AES S-Box Operation ensures an even distributon of entropy
return (c);
}
uint8_t txbuf[3] = {0x01, 0x05, 0x01};
int txpos = -1;
/* FIXME test code */
for (int i=0; i<sizeof(txbuf)/sizeof(txbuf[0]); i++)
txbuf[i] = i;
//for (int i=0; i<sizeof(txbuf)/sizeof(txbuf[0]); i++)
// txbuf[i] = i;
/* FIXME end test code */
int i = 0;
while (42) {
if (txstate.next_symbol == -NO_SYMBOL) {
if (txpos == -1)
@ -93,8 +105,18 @@ int main(void) {
txstate.next_symbol = xfr_8b10b_encode(&txstate.st, txbuf[txpos]);
txpos++;
if (txpos >= sizeof(txbuf)/sizeof(txbuf[0]))
if (txpos >= sizeof(txbuf)/sizeof(txbuf[0])) {
txpos = -1;
i++;
if (i == 2) {
//txbuf[2] = random();
//txbuf[2] <<= 1;
//if (!txbuf[2] & 0xff)
// txbuf[2] = 0x01;
i = 0;
}
}
}
}
}