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authorChris Chen <twothreecc@google.com>2016-07-11 10:36:24 -0700
committerchrome-bot <chrome-bot@chromium.org>2016-07-12 11:04:41 -0700
commit1b8fa6dbe41850a48c1271be3cf9d260b05f4c52 (patch)
tree2c48662b495ecb747122e09490746f0d2a2ac553 /board
parent730c7c469fc06264a67280a62185bfc9f06d88a6 (diff)
downloadchrome-ec-1b8fa6dbe41850a48c1271be3cf9d260b05f4c52.tar.gz
cts: Added sync() function
sync() involves 2 gpios on each board, each labeled GPIO_HANDSHAKE_OUTPUT and GPIO_HANDSHAKE_INPUT on their respective boards. They both start low, then the th wiggles his line up and down, waiting for the dut to mimic it. BRANCH=None BUG=None TEST=manual - Connect handshake lines to appropriate pins on each board (pins found in board's gpio.inc) - Build tests - Flash boards - run 'cat /dev/ttyACM0' in one terminal - run 'cat /dev/ttyACM1' in another - They should each have printed 'successful sync' Change-Id: I61233bca9605ba89c3628c2a65ca9013c56365ea Reviewed-on: https://chromium-review.googlesource.com/359355 Commit-Ready: Chris Chen <twothreecc@google.com> Tested-by: Chris Chen <twothreecc@google.com> Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
Diffstat (limited to 'board')
-rw-r--r--board/nucleo-f072rb/gpio.inc6
-rw-r--r--board/stm32l476g-eval/gpio.inc8
2 files changed, 13 insertions, 1 deletions
diff --git a/board/nucleo-f072rb/gpio.inc b/board/nucleo-f072rb/gpio.inc
index 26f532f39f..91f8252e7f 100644
--- a/board/nucleo-f072rb/gpio.inc
+++ b/board/nucleo-f072rb/gpio.inc
@@ -18,3 +18,9 @@ UNIMPLEMENTED(ENTERING_RW)
UNIMPLEMENTED(WP_L)
ALTERNATE(PIN_MASK(A, 0x000C), 1, MODULE_UART, 0) /* USART2: PA2/PA3 */
+
+#ifdef CTS_MODULE
+/* CTS Signals */
+GPIO(HANDSHAKE_INPUT, PIN(A, 4), GPIO_INPUT | GPIO_PULL_UP)
+GPIO(HANDSHAKE_OUTPUT, PIN(B, 0), GPIO_ODR_LOW)
+#endif
diff --git a/board/stm32l476g-eval/gpio.inc b/board/stm32l476g-eval/gpio.inc
index f0599365aa..210c618e4c 100644
--- a/board/stm32l476g-eval/gpio.inc
+++ b/board/stm32l476g-eval/gpio.inc
@@ -17,4 +17,10 @@ UNIMPLEMENTED(ENTERING_RW)
UNIMPLEMENTED(WP_L)
ALTERNATE(PIN_MASK(B, 0xC0), GPIO_ALT_F7, MODULE_UART, 0) /* USART1: PB6/7 */
-ALTERNATE(PIN_MASK(G, 0x0180), GPIO_ALT_F8, MODULE_UART, 0) /* LPUART: PG7/8 */ \ No newline at end of file
+ALTERNATE(PIN_MASK(G, 0x0180), GPIO_ALT_F8, MODULE_UART, 0) /* LPUART: PG7/8 */
+
+#ifdef CTS_MODULE
+/* CTS Signals */
+GPIO(HANDSHAKE_OUTPUT, PIN(D, 2), GPIO_ODR_LOW)
+GPIO(HANDSHAKE_INPUT, PIN(C, 12), GPIO_INPUT | GPIO_PULL_UP)
+#endif