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fw: Rename variable rnd to rnd_sleep to indicate what it's for

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Michael Cardell Widerkrantz 2023-03-16 13:17:42 +01:00
parent cd2dc55371
commit 00d806df10
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GPG Key ID: D3DB3DDF57E704E5
1 changed files with 4 additions and 4 deletions
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8
hw/application_fpga/fw/tk1/main.c
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@ -94,15 +94,15 @@ static void compute_cdi(const uint8_t digest[32], const uint8_t use_uss,
{
uint32_t local_cdi[8];
blake2s_ctx secure_ctx;
uint32_t rnd;
uint32_t rnd_sleep;
int blake2err;
// Prepare to sleep a random number of cycles before reading out UDS
*timer_prescaler = 1;
rnd = rnd_word();
rnd_sleep = rnd_word();
// Up to 65536 cycles
rnd &= 0xffff;
*timer = (rnd == 0 ? 1 : rnd);
rnd_sleep &= 0xffff;
*timer = (rnd_sleep == 0 ? 1 : rnd_sleep);
*timer_ctrl = (1 << TK1_MMIO_TIMER_CTRL_START_BIT);
while (*timer_status & (1 << TK1_MMIO_TIMER_STATUS_RUNNING_BIT)) {
}