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altos: Shuffle stm-demo SPI test code around a bit
author
Keith Packard
<keithp@keithp.com>
Sat, 7 Apr 2012 05:40:49 +0000
(22:40 -0700)
committer
Keith Packard
<keithp@keithp.com>
Sat, 7 Apr 2012 05:40:49 +0000
(22:40 -0700)
Move a debug printf beyond the chip select boundary to
allow for more accurate timing.
Send four bytes instead of just one.
Signed-off-by: Keith Packard <keithp@keithp.com>
src/stm-demo/ao_demo.c
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diff --git
a/src/stm-demo/ao_demo.c
b/src/stm-demo/ao_demo.c
index 54f7c8f2efb72f46dd5cb93a9bbc1327c791c7a8..5ff2b32a94eeded531e50b6db878e4d4e6034dd0 100644
(file)
--- a/
src/stm-demo/ao_demo.c
+++ b/
src/stm-demo/ao_demo.c
@@
-82,7
+82,7
@@
ao_spi_write(void) {
for (i = 0; i < 10; i++) {
ao_spi_get(0);
stm_gpio_set(&stm_gpioc, 12, 0);
- ao_spi_send(data,
1
, 0);
+ ao_spi_send(data,
4
, 0);
stm_gpio_set(&stm_gpioc, 12, 1);
ao_spi_put(0);
printf(".");
@@
-100,10
+100,10
@@
ao_spi_read(void) {
ao_spi_get(0);
stm_gpio_set(&stm_gpioc, 12, 0);
ao_spi_recv(data, 4, 0);
- printf(".");
- flush();
stm_gpio_set(&stm_gpioc, 12, 1);
ao_spi_put(0);
+ printf(".");
+ flush();
ao_delay(100);
}
}