From 85fe805e328e54b799b742113e4e47fd9c99ce55 Mon Sep 17 00:00:00 2001
From: cnlohr <lohr85@gmail.com>
Date: Sun, 6 Oct 2024 03:59:16 -0700
Subject: [PATCH] Fix note about value of atrlr

---
 ch32v/ch32v203tx/ch32v203tx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ch32v/ch32v203tx/ch32v203tx.c b/ch32v/ch32v203tx/ch32v203tx.c
index b04f542..b35ec91 100644
--- a/ch32v/ch32v203tx/ch32v203tx.c
+++ b/ch32v/ch32v203tx/ch32v203tx.c
@@ -68,7 +68,7 @@ int main()
 	RCC->APB1PRSTR &= ~RCC_APB1Periph_TIM2;
 
 	TIM2->PSC = 0x0000; // Prescalar
-	TIM2->ATRLR = 4; // Max
+	TIM2->ATRLR = 4; // loop = fclk / (atrlr+1)
 	TIM2->CHCTLR1 = TIM_OC1M_2 | TIM_OC1M_1 | TIM_OC1PE | TIM_OC1FE;
 	TIM2->CTLR1 = TIM_ARPE;
 	TIM2->CCER = TIM_CC1E | TIM_CC1P | TIM_CC1NE;