From 1ec56eec8e17aec5ca23286a674811bd9a3d7b0f Mon Sep 17 00:00:00 2001
From: Eric Betts <bettse@fastmail.fm>
Date: Tue, 4 Nov 2025 17:15:38 -0800
Subject: [PATCH] Switch to LPTIM2PA4

---
 uart.c | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/uart.c b/uart.c
index 10206b2..4cb76c7 100644
--- a/uart.c
+++ b/uart.c
@@ -54,11 +54,16 @@ void seader_uart_serial_init(Seader* seader, uint8_t uart_ch) {
             seader_uart->serial_handle, seader_uart_on_irq_rx_dma_cb, seader_uart, false);
     } else {
         furi_hal_serial_init(seader_uart->serial_handle, RAW_BAUDRATE_DEFAULT);
+        furi_hal_serial_configure_framing(
+            seader_uart->serial_handle,
+            FuriHalSerialDataBits8,
+            FuriHalSerialParityEven,
+            FuriHalSerialStopBits2);
 
         furi_hal_serial_dma_rx_start(
             seader_uart->serial_handle, seader_uart_on_irq_rx_dma_cb, seader_uart, false);
 
-        furi_hal_pwm_start(FuriHalPwmOutputIdTim1PA7, PWM_FREQ, 50);
+        furi_hal_pwm_start(FuriHalPwmOutputIdLptim2PA4, PWM_FREQ, 50);
 
         furi_hal_gpio_init(RESET_PIN, GpioModeOutputPushPull, GpioPullNo, GpioSpeedLow);
         furi_hal_gpio_write(RESET_PIN, true); // Active low, so set high
@@ -83,7 +88,7 @@ void seader_uart_serial_deinit(Seader* seader) {
     seader_uart->serial_handle = NULL;
 
     if(seader->worker->sam_comm_type == SeaderSamCommunicationTypeRaw) {
-        furi_hal_pwm_stop(FuriHalPwmOutputIdTim1PA7);
+        furi_hal_pwm_stop(FuriHalPwmOutputIdLptim2PA4);
 
         furi_hal_gpio_init_simple(RESET_PIN, GpioModeAnalog);
         furi_hal_gpio_write(RESET_PIN, false);
@@ -136,9 +141,9 @@ size_t seader_uart_process_buffer_raw(Seader* seader, uint8_t* cmd, size_t cmd_l
 
     if(ppsSetup) {
         if(memcmp(PPS, cmd, sizeof(PPS)) == 0) {
-            FURI_LOG_I(TAG, "PPS received, setting baudrate to 230400");
-            // On paper (based on PPS) the baudrate should be 223125, but in practice 230400 works fine
-            seader_uart_set_baudrate(seader->uart, 230400);
+            // If you ever have issue with this, try bumping it to 230400
+            FURI_LOG_I(TAG, "PPS received, setting baudrate to 223125");
+            seader_uart_set_baudrate(seader->uart, 223125);
 
             //seader_t_1_set_IFSD(seader);
 
@@ -174,6 +179,7 @@ size_t seader_uart_process_buffer_raw(Seader* seader, uint8_t* cmd, size_t cmd_l
             hasSAM = true;
 
             // In order to get the transmission to work, we fudge the baudrate here
+            /*
             seader_uart_set_baudrate(seader_uart, 9900);
 
             furi_hal_serial_configure_framing(
@@ -181,7 +187,7 @@ size_t seader_uart_process_buffer_raw(Seader* seader, uint8_t* cmd, size_t cmd_l
                 FuriHalSerialDataBits8,
                 FuriHalSerialParityEven,
                 FuriHalSerialStopBits2);
-
+            */
             // 5.2.3 PPS - Protocol Parameter Selection
             // 0xFF, 0x11, 0x96, 0x78
             seader_uart_send(seader_uart, PPS, sizeof(PPS));