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stm32-h103 examples: Cosmetic and coding style fixes.

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This commit is contained in:
Uwe Hermann
2011-11-03 00:57:46 +01:00
parent a3ce2924df
commit 44bf853e6e
16 changed files with 317 additions and 363 deletions
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29
examples/stm32/f1/stm32-h103/traceswo/traceswo.c
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@@ -35,31 +35,30 @@ void clock_setup(void)
void trace_setup(void)
{
/* Enable trace subsystem (we'll use ITM and TPIU) */
/* Enable trace subsystem (we'll use ITM and TPIU). */
SCS_DEMCR |= SCS_DEMCR_TRCENA;
/* Use Manchester code for asynchronous transmission */
/* Use Manchester code for asynchronous transmission. */
TPIU_SPPR = TPIU_SPPR_ASYNC_MANCHESTER;
TPIU_ACPR = 7;
/* Data width is 1 byte */
/* Data width is 1 byte. */
TPIU_CSPSR = TPIU_CSPSR_BYTE;
/* Formatter and flush control */
/* Formatter and flush control. */
TPIU_FFCR &= ~TPIU_FFCR_ENFCONT;
/* Enable TRACESWO pin for async mode */
/* Enable TRACESWO pin for async mode. */
DBGMCU_CR = DBGMCU_CR_TRACE_IOEN | DBGMCU_CR_TRACE_MODE_ASYNC;
/* Unlock access to ITM registers */
/* Unlock access to ITM registers. */
/* FIXME: Magic numbers... Is this Cortex-M3 generic? */
*((volatile uint32_t*)0xE0000FB0) = 0xC5ACCE55;
*((volatile u32 *)0xE0000FB0) = 0xC5ACCE55;
/* Enable ITM with ID = 1 */
/* Enable ITM with ID = 1. */
ITM_TCR = (1 << 16) | ITM_TCR_ITMENA;
/* Enable stimulus port 1 */
ITM_TER[0] = 1;
/* Enable stimulus port 1. */
ITM_TER[0] = 1;
}
void gpio_setup(void)
@@ -71,7 +70,9 @@ void gpio_setup(void)
void trace_send_blocking(char c)
{
while(!(ITM_STIM[0] & ITM_STIM_FIFOREADY));
while (!(ITM_STIM[0] & ITM_STIM_FIFOREADY))
;
ITM_STIM[0] = c;
}
@@ -86,14 +87,14 @@ int main(void)
/* Blink the LED (PC12) on the board with every transmitted byte. */
while (1) {
gpio_toggle(GPIOC, GPIO12); /* LED on/off */
trace_send_blocking(c + '0');
trace_send_blocking(c + '0');
c = (c == 9) ? 0 : c + 1; /* Increment c. */
if ((j++ % 80) == 0) { /* Newline after line full. */
trace_send_blocking('\r');
trace_send_blocking('\n');
}
for (i = 0; i < 800000; i++) /* Wait a bit. */
__asm__("NOP");
__asm__("nop");
}
return 0;