From d8d3dc039d0e611b14248fa036e4edb7812be228 Mon Sep 17 00:00:00 2001
From: schneider <schneider@blinkenlichts.net>
Date: Wed, 26 Oct 2022 20:00:29 +0200
Subject: [PATCH] m0: reset M0 before starting it

The rad1o was not starting the M0 when powered up by inserting a USB
cable. Interestingly the M0 does start when toggling the power switch.

Resetting the M0 before starting it in `main()` solves this issue.
---
 firmware/hackrf_usb/hackrf_usb.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/firmware/hackrf_usb/hackrf_usb.c b/firmware/hackrf_usb/hackrf_usb.c
index acd8ba5d..a0604c48 100644
--- a/firmware/hackrf_usb/hackrf_usb.c
+++ b/firmware/hackrf_usb/hackrf_usb.c
@@ -241,6 +241,7 @@ int main(void)
 	cpu_clock_init();
 
 	/* Wake the M0 */
+	ipc_halt_m0();
 	ipc_start_m0((uint32_t) &__ram_m0_start__);
 
 	if (!cpld_jtag_sram_load(&jtag_cpld)) {