From 188b65034fa91ed692ef698602f005bece581272 Mon Sep 17 00:00:00 2001
From: Louis Burda <quent.burda@gmail.com>
Date: Sat, 9 Nov 2024 00:56:31 +0100
Subject: Add test mode

---
 firmware/notes           |  8 ++++++--
 firmware/src/main/main.c | 21 ++++++++++++++++-----
 2 files changed, 22 insertions(+), 7 deletions(-)

(limited to 'firmware')

diff --git a/firmware/notes b/firmware/notes
index 3795e63..1296a35 100644
--- a/firmware/notes
+++ b/firmware/notes
@@ -1,9 +1,13 @@
 V_GS,LOW  = V_DD - (V_DD - V_CC - V_TVS) * (R2 / (R1 + R2)) 
 V_GS,HIGH = V_DD - V_DD * (R2 / (R1 + R2))
 
-V_DD = 0.6 * (1 + R1 / R2) = 0.6 * (1 + 100 / 5.1) = 12.4
-V_GS,LOW  = 12.4 - (12.4 - 5 - 0.7) * (100 / (100 + 10)) = 0.6 V
+V_TVS ~= 6.3 V
+
+V_DD = 0.6 * (1 + R1 / R2) = 0.6 * (1 + 100 / 5.1) = 12.4 V
+V_GS,LOW  = 12.4 - ((12.4 - V_TVS) * (100 / (100 + 10)) + V_TVS) = 0.55 V
 V_GS,HIGH = 12.4 - 12.4 * (100 / (100 + 10)) = 1.13 V
 
+V_GS,TH = 0.6-0.7
+
 Default stdio driver flushes after newline. May sleep for 50ms
 when the tx fifo is full, but generally unbuffered.
diff --git a/firmware/src/main/main.c b/firmware/src/main/main.c
index a9ed2d0..1324d9f 100644
--- a/firmware/src/main/main.c
+++ b/firmware/src/main/main.c
@@ -347,6 +347,19 @@ http_init(void)
 	httpd_register_uri_handler(server, &http_post);
 }
 
+static void
+test_init(void)
+{
+	uint8_t bv = 0;
+	int tick = 0;
+	while (1) {
+		printf("Tick %i\n", ++tick);
+		set_output(1 << bv);
+		bv = (bv + 1) % (SPEAKER + 1);
+		vTaskDelay(TICKS_MS(1000));
+	}
+}
+
 void
 app_main(void)
 {
@@ -366,13 +379,11 @@ app_main(void)
 	xTaskCreate(lcd_task_main, "lcd", 16 * 1024, NULL, tskIDLE_PRIORITY, &lcd_task);
 	vTaskDelay(TICKS_MS(500));
 
+	test_init();
+
 	wifi_init();
 
 	http_init();
 
-	int tick = 0;
-	while (1) {
-		printf("Tick %i\n", ++tick);
-		vTaskDelay(TICKS_MS(1000));
-	}
+	while (1) vTaskDelay(1000);
 }
-- 
cgit v1.2.3-71-gd317