From 357102ee9ccaea7e26c95e409c4c364a63aed423 Mon Sep 17 00:00:00 2001 From: Christian Cunningham Date: Fri, 25 Mar 2022 12:34:00 -0700 Subject: 19200 baud over 3MHz --- kernel/cpu/irq.c | 1 + kernel/drivers/uart.c | 4 ++-- 2 files changed, 3 insertions(+), 2 deletions(-) (limited to 'kernel') diff --git a/kernel/cpu/irq.c b/kernel/cpu/irq.c index 09b3346..f718b7e 100644 --- a/kernel/cpu/irq.c +++ b/kernel/cpu/irq.c @@ -114,6 +114,7 @@ unsigned long c_fiq_handler(void) if (source & (1 << 3) && irqs[LOCAL_TIMER_IRQ].handler != 0) { add_thread(irqs[LOCAL_TIMER_IRQ].handler, 0, 1); write_cntv_tval(cntfrq); + return 1; } return 0; } diff --git a/kernel/drivers/uart.c b/kernel/drivers/uart.c index 2107a6f..33f9e82 100644 --- a/kernel/drivers/uart.c +++ b/kernel/drivers/uart.c @@ -31,8 +31,8 @@ void uart_init(void) // Clear pending interrupts store32(0x7FF, UART0_ICR); // Set to 3Mhz - store32(10, UART0_IBRD); - store32(20, UART0_FBRD); + store32(9, UART0_IBRD); + store32(49, UART0_FBRD); // Enable FIFO and 8 bit transmission store32((1<<4)|(1<<5)|(1<<6), UART0_LCRH); // Mask all interrupts -- cgit v1.2.1