diff --git a/ch32v/ch32v003fun b/ch32v/ch32v003fun
index 627ddd3..119924c 160000
--- a/ch32v/ch32v003fun
+++ b/ch32v/ch32v003fun
@@ -1 +1 @@
-Subproject commit 627ddd3a6b1beed8902f06078ee5e8f834e7b7a9
+Subproject commit 119924c0d9ee02b8c069254d37d2a89921820689
diff --git a/ch32v/ch32v203-adcrx/adcrx.c b/ch32v/ch32v203-adcrx/adcrx.c
index 16ef816..e2230eb 100644
--- a/ch32v/ch32v203-adcrx/adcrx.c
+++ b/ch32v/ch32v203-adcrx/adcrx.c
@@ -81,6 +81,7 @@ volatile uint16_t adc_buffer[ADC_BUFFSIZE];
 void SetupADC()
 {
 	// XXX TODO -look into PGA
+	// XXX TODO - look into BUFEN and TKITUNE
 	// XXX TODO - Look into tag-teaming the ADCs
 
 	// PDA is analog input chl 7
diff --git a/ch32v/ch32v203-goertzel/adcgoertzel.c b/ch32v/ch32v203-goertzel/adcgoertzel.c
index ec1575e..6f252a1 100644
--- a/ch32v/ch32v203-goertzel/adcgoertzel.c
+++ b/ch32v/ch32v203-goertzel/adcgoertzel.c
@@ -193,7 +193,10 @@ void SetupADC()
 	while(ADC1->CTLR2 & ADC_CAL);
 
 	// ADC_SCAN: Allow scanning.
-	ADC1->CTLR1 = ADC_Pga_64 | ADC_SCAN;
+	ADC1->CTLR1 = 
+		//ADC_SCAN;
+		ADC_Pga_16 | ADC_SCAN;
+		//ADC_Pga_64 | ADC_SCAN;
 
 
 	// Turn on DMA
diff --git a/ch32v/ch32v203-goertzel/ttest/demo_run.ods b/ch32v/ch32v203-goertzel/ttest/demo_run.ods
index d998af2..38834bf 100644
Binary files a/ch32v/ch32v203-goertzel/ttest/demo_run.ods and b/ch32v/ch32v203-goertzel/ttest/demo_run.ods differ
diff --git a/ch32v/ch32v203tx/Makefile b/ch32v/ch32v203tx/Makefile
new file mode 100644
index 0000000..201a38b
--- /dev/null
+++ b/ch32v/ch32v203tx/Makefile
@@ -0,0 +1,13 @@
+all : flash
+
+TARGET:=ch32v203tx
+TARGET_MCU:=CH32V203
+CH32V003FUN:=../ch32v003fun/ch32v003fun
+
+EXTRA_CFLAGS:=-Wno-unused-function -I../../lib
+
+include $(CH32V003FUN)/ch32v003fun.mk
+
+flash : cv_flash
+clean : cv_clean
+
diff --git a/ch32v/ch32v203tx/ch32v203tx.c b/ch32v/ch32v203tx/ch32v203tx.c
new file mode 100644
index 0000000..b04f542
--- /dev/null
+++ b/ch32v/ch32v203tx/ch32v203tx.c
@@ -0,0 +1,93 @@
+/**
+
+MIT-like-non-ai-license
+
+Copyright (c) 2024 Charles Lohr "CNLohr"
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the two following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+In addition the following restrictions apply:
+
+1. The Software and any modifications made to it may not be used for the
+purpose of training or improving machine learning algorithms, including but not
+limited to artificial intelligence, natural language processing, or data
+mining. This condition applies to any derivatives, modifications, or updates
+based on the Software code. Any usage of the Software in an AI-training dataset
+is considered a breach of this License.
+
+2. The Software may not be included in any dataset used for training or
+improving machine learning algorithms, including but not limited to artificial
+intelligence, natural language processing, or data mining.
+
+
+3. Any person or organization found to be in violation of these restrictions
+will be subject to legal action and may be held liable for any damages
+resulting from such use.
+
+If any term is unenforcable, other terms remain in-force.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+**/
+
+#include "ch32v003fun.h"
+#include <stdio.h>
+
+#define LEDPIN PD6
+
+int main()
+{	
+	SystemInit();
+
+	Delay_Ms( 100 );
+
+
+	funGpioInitAll();
+	RCC->APB1PCENR |= RCC_APB1Periph_TIM2;
+	// PD4 = T2C1 on 003, PA0 on the 203.
+	funPinMode( PA0, GPIO_CFGLR_OUT_50Mhz_AF_PP );
+	funPinMode( PA1, GPIO_CFGLR_OUT_50Mhz_AF_PP );
+	funPinMode( LEDPIN, GPIO_CFGLR_OUT_50Mhz_PP );
+
+	// Reset TIM2 to init all regs
+	RCC->APB1PRSTR |= RCC_APB1Periph_TIM2;
+	RCC->APB1PRSTR &= ~RCC_APB1Periph_TIM2;
+
+	TIM2->PSC = 0x0000; // Prescalar
+	TIM2->ATRLR = 4; // Max
+	TIM2->CHCTLR1 = TIM_OC1M_2 | TIM_OC1M_1 | TIM_OC1PE | TIM_OC1FE;
+	TIM2->CTLR1 = TIM_ARPE;
+	TIM2->CCER = TIM_CC1E | TIM_CC1P | TIM_CC1NE;
+	TIM2->SWEVGR = TIM_UG;
+
+	// Enable TIM2
+	TIM2->CTLR1 |= TIM_CEN;
+	TIM2->CH1CVR = TIM2->ATRLR/2+1;
+
+	printf( "Setup\n" );
+	while(1)
+	{
+		TIM2->CH1CVR = 2;
+		TIM2->CCER = TIM_CC1E | TIM_CC1P;
+		funDigitalWrite( LEDPIN, 1 );
+		Delay_Us( 2000 );
+		TIM2->CCER = TIM_CC1E;
+		TIM2->CH1CVR = 2;
+		funDigitalWrite( LEDPIN, 0 );
+		Delay_Us( 2000 );
+	}
+}
diff --git a/ch32v/ch32v203tx/funconfig.h b/ch32v/ch32v203tx/funconfig.h
new file mode 100644
index 0000000..046451f
--- /dev/null
+++ b/ch32v/ch32v203tx/funconfig.h
@@ -0,0 +1,9 @@
+#ifndef _FUNCONFIG_H
+#define _FUNCONFIG_H
+
+#define FUNCONF_USE_DEBUGPRINTF 1
+#define FUNCONF_USE_UARTPRINTF  0
+#define FUNCONF_USE_HSE 1
+
+#endif
+